mirror of
https://github.com/danieleteti/delphimvcframework.git
synced 2024-11-15 15:55:54 +01:00
2427 lines
71 KiB
ObjectPascal
2427 lines
71 KiB
ObjectPascal
unit MainFormU;
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interface
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uses
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Winapi.Windows,
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Winapi.Messages,
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System.SysUtils,
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System.Variants,
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System.Classes,
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Vcl.Graphics,
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Vcl.Controls,
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Vcl.Forms,
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Vcl.Dialogs,
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Vcl.StdCtrls,
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FireDAC.Stan.Intf,
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FireDAC.Stan.Option,
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FireDAC.Stan.Error,
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FireDAC.UI.Intf,
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FireDAC.Phys.Intf,
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FireDAC.Stan.Def,
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FireDAC.Stan.Pool,
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FireDAC.Stan.Async,
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FireDAC.Phys,
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FireDAC.VCLUI.Wait,
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Data.DB,
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FireDAC.Comp.Client,
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MVCFramework.Nullables,
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MVCFramework.ActiveRecord,
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MVCFramework.Logger,
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System.Generics.Collections, System.Diagnostics;
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type
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TMainForm = class(TForm)
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btnCRUD: TButton;
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btnSelect: TButton;
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Memo1: TMemo;
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btnRelations: TButton;
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btnInheritance: TButton;
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btnValidation: TButton;
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btnMultiThreading: TButton;
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btnRQL: TButton;
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btnReadOnlyFields: TButton;
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btnNullTest: TButton;
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btnCRUDNoAutoInc: TButton;
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btnCRUDWithStringPKs: TButton;
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btnWithSpaces: TButton;
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btnCountWithRQL: TButton;
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btnReadAndWriteOnly: TButton;
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btnClientGeneratedPK: TButton;
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btnAttributes: TButton;
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btnJSON_XML_Types: TButton;
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btnMerge: TButton;
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btnTableFilter: TButton;
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btnPartitioning: TButton;
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btnCRUDWithGUID: TButton;
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btnOOP: TButton;
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btnReadOnly: TButton;
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btnSpeed: TButton;
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btnRefresh: TButton;
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btnNamedQuery: TButton;
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btnVirtualEntities: TButton;
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btnIntegersAsBool: TButton;
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btnObjectVersion: TButton;
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btnCustomTable: TButton;
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btnCRUDWithOptions: TButton;
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btnTransaction: TButton;
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procedure btnCRUDClick(Sender: TObject);
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procedure btnInheritanceClick(Sender: TObject);
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procedure btnMultiThreadingClick(Sender: TObject);
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procedure btnRelationsClick(Sender: TObject);
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procedure btnRQLClick(Sender: TObject);
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procedure btnSelectClick(Sender: TObject);
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procedure btnValidationClick(Sender: TObject);
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procedure FormDestroy(Sender: TObject);
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procedure btnReadOnlyFieldsClick(Sender: TObject);
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procedure FormShow(Sender: TObject);
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procedure btnNullablesClick(Sender: TObject);
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procedure btnNullTestClick(Sender: TObject);
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procedure btnCRUDNoAutoIncClick(Sender: TObject);
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procedure btnCRUDWithStringPKsClick(Sender: TObject);
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procedure btnWithSpacesClick(Sender: TObject);
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procedure btnCountWithRQLClick(Sender: TObject);
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procedure btnReadAndWriteOnlyClick(Sender: TObject);
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procedure btnClientGeneratedPKClick(Sender: TObject);
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procedure btnAttributesClick(Sender: TObject);
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procedure btnJSON_XML_TypesClick(Sender: TObject);
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procedure btnMergeClick(Sender: TObject);
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procedure btnTableFilterClick(Sender: TObject);
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procedure btnPartitioningClick(Sender: TObject);
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procedure btnCRUDWithGUIDClick(Sender: TObject);
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procedure btnOOPClick(Sender: TObject);
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procedure btnReadOnlyClick(Sender: TObject);
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procedure btnSpeedClick(Sender: TObject);
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procedure btnRefreshClick(Sender: TObject);
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procedure btnNamedQueryClick(Sender: TObject);
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procedure btnVirtualEntitiesClick(Sender: TObject);
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procedure btnIntegersAsBoolClick(Sender: TObject);
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procedure btnObjectVersionClick(Sender: TObject);
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procedure btnCustomTableClick(Sender: TObject);
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procedure btnCRUDWithOptionsClick(Sender: TObject);
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procedure btnTransactionClick(Sender: TObject);
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private
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procedure Log(const Value: string);
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procedure LoadCustomers(const HowManyCustomers: Integer = 50);
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procedure ExecutedInTransaction;
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public
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{ Public declarations }
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end;
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var
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MainForm: TMainForm;
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implementation
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{$R *.dfm}
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uses
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EntitiesU,
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System.Threading,
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MVCFramework.DataSet.Utils,
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MVCFramework.RQL.Parser,
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System.Math,
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FDConnectionConfigU,
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EngineChoiceFormU,
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System.Rtti;
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const
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Cities: array [0 .. 4] of string = ('Rome', 'New York', 'London', 'Melbourne', 'Berlin');
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CompanySuffix: array [0 .. 5] of string = ('Corp.', 'Inc.', 'Ltd.', 'Srl', 'SPA', 'doo');
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Stuff: array [0 .. 4] of string = ('Burger', 'GAS', 'Motors', 'House', 'Boats');
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procedure TMainForm.btnAttributesClick(Sender: TObject);
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var
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lCustomer: TCustomer;
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lID: Integer;
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begin
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Log('** Dynamic Properties Access');
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lCustomer := TCustomer.Create;
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try
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lCustomer.Attributes['CompanyName'] := 'Google Inc.';
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lCustomer.Attributes['City'] := 'Montain View, CA';
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lCustomer.Attributes['Note'] := 'Hello there!';
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lCustomer.Attributes['Code'] := 'XX123';
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lCustomer.Attributes['Rating'] := 3;
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lCustomer.Insert;
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lID := lCustomer.ID;
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Log('Just inserted Customer ' + lID.ToString);
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finally
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lCustomer.Free;
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end;
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lCustomer := TMVCActiveRecord.GetByPK<TCustomer>(lID);
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try
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Assert('Google Inc.' = lCustomer.Attributes['CompanyName'].AsType<NullableString>().Value);
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Assert('Montain View, CA' = lCustomer.Attributes['City'].AsString);
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Assert('XX123' = lCustomer.Attributes['Code'].AsType<NullableString>().Value);
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Assert('Hello there!' = lCustomer.Attributes['Note'].AsString);
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lCustomer.Update;
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Log('Just updated Customer ' + lID.ToString);
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finally
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lCustomer.Free;
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end;
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lCustomer := TCustomer.Create;
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try
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lCustomer.LoadByPK(lID);
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lCustomer.Code.Value := '9012';
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lCustomer.Update;
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finally
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lCustomer.Free;
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end;
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end;
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procedure TMainForm.btnClientGeneratedPKClick(Sender: TObject);
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var
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lCustomer: TCustomerPlainWithClientPK;
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begin
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Log('** OnBeforeInsert and SetPK');
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lCustomer := TCustomerPlainWithClientPK.Create();
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try
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lCustomer.Store;
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finally
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lCustomer.Free;
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end;
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end;
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procedure TMainForm.btnCountWithRQLClick(Sender: TObject);
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var
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lRQL: string;
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lCustomer: TCustomer;
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I: Integer;
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begin
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Log('** TMVCActiveRecord.Count<TCustomer>(RQL) [Just uses Filter]');
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TMVCActiveRecord.DeleteAll(TCustomer);
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for I := 1 to 30 do
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begin
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lCustomer := TCustomer.Create;
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try
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lCustomer.Code := Format('%5.5d', [TThread.CurrentThread.ThreadID, I]);
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lCustomer.City := Cities[Random(high(Cities) + 1)];
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lCustomer.CompanyName := Format('%s %s %s', [lCustomer.City, Stuff[Random(high(Stuff) + 1)],
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CompanySuffix[Random(high(CompanySuffix) + 1)]]);
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lCustomer.Note := lCustomer.CompanyName + ' is from ' + lCustomer.City;
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lCustomer.Insert;
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finally
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lCustomer.Free;
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end;
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end;
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lRQL := 'contains(city,"e")';
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Log(lRQL + ' => ' + TMVCActiveRecord.Count<TCustomer>(lRQL).ToString);
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lRQL := 'contains(city,"e");sort(+city)';
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Log(lRQL + ' => ' + TMVCActiveRecord.Count<TCustomer>(lRQL).ToString);
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lRQL := 'contains(city,"e");limit(1,1)';
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Log(lRQL + ' => ' + TMVCActiveRecord.Count<TCustomer>(lRQL).ToString);
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lRQL := 'contains(city,"e");sort(+city);limit(1,1)';
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Log(lRQL + ' => ' + TMVCActiveRecord.Count<TCustomer>(lRQL).ToString);
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lRQL := 'contains(city,"e");sort(+city);limit(0,5)';
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Log(lRQL + ' => ' + TMVCActiveRecord.Count<TCustomer>(lRQL).ToString);
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end;
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procedure TMainForm.btnCRUDClick(Sender: TObject);
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var
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lCustomer: TCustomer;
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lID: Integer;
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lTestNote: string;
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begin
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Log('** Simple CRUD test');
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Log('There are ' + TMVCActiveRecord.Count<TCustomer>().ToString + ' row/s for entity ' +
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TCustomer.ClassName);
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lCustomer := TCustomer.Create;
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try
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Log('Entity ' + TCustomer.ClassName + ' is mapped to table ' + lCustomer.TableName);
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lCustomer.CompanyName := 'Google Inc.';
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lCustomer.City := 'Montain View, CA';
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lCustomer.Note := 'Μῆνιν ἄειδε θεὰ Πηληϊάδεω Ἀχιλῆος οὐλομένην 😁';
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lCustomer.LastContact := Now();
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lCustomer.Insert;
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lID := lCustomer.ID;
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Log('Just inserted Customer ' + lID.ToString);
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finally
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lCustomer.Free;
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end;
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lCustomer := TMVCActiveRecord.GetByPK<TCustomer>(lID);
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try
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Assert(not lCustomer.Code.HasValue);
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lCustomer.Code.Value := '5678';
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lCustomer.Note := lCustomer.Note + sLineBreak + 'Code changed to 5678 🙂';
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lCustomer.LastContact.Clear;
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lTestNote := lCustomer.Note;
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lCustomer.Update;
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Log('Just updated Customer ' + lID.ToString);
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finally
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lCustomer.Free;
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end;
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lCustomer := TCustomer.Create;
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try
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lCustomer.LoadByPK(lID);
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lCustomer.Code.Value := '😉9012🙂';
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Assert(lCustomer.LastContact.IsNull);
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lCustomer.LastContact := Now();
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lCustomer.Update;
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finally
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lCustomer.Free;
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end;
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lCustomer := TCustomer.Create;
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try
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lCustomer.LoadByPK(lID);
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Assert(lCustomer.Code.Value = '😉9012🙂');
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Assert(lCustomer.Note = lTestNote);
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Assert(lCustomer.LastContact.HasValue);
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lCustomer.LastContact := Now();
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lCustomer.Update;
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finally
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lCustomer.Free;
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end;
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lCustomer := TMVCActiveRecord.GetByPK<TCustomer>(lID);
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try
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lCustomer.Delete;
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Log('Just deleted Customer ' + lID.ToString);
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finally
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lCustomer.Free;
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end;
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end;
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procedure TMainForm.btnCRUDNoAutoIncClick(Sender: TObject);
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var
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lCustomer: TCustomerPlain;
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lID: Integer;
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I: Integer;
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begin
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Log('** Simple CRUD (no autoinc) test');
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Log('There are ' + TMVCActiveRecord.Count<TCustomerPlain>().ToString + ' row/s for entity ' +
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TCustomerPlain.ClassName);
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TMVCActiveRecord.DeleteAll(TCustomerPlain);
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Log('Deleting all entities ' + TCustomerPlain.ClassName);
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for I := 1 to 100 do
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begin
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lCustomer := TCustomerPlain.Create;
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try
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lCustomer.ID := I;
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// just for test!!
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case I mod 3 of
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0:
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lCustomer.CompanyName := 'Google Inc.';
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1:
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lCustomer.CompanyName := 'bit Time Professionals';
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2:
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lCustomer.CompanyName := 'Walt Disney Corp.';
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end;
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lCustomer.City := 'Montain View, CA';
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lCustomer.Note := 'Hello there!';
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lCustomer.CreationTime := Time;
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lCustomer.CreationDate := Date;
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lCustomer.Insert;
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lID := lCustomer.ID;
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Log('Just inserted Customer ' + lID.ToString);
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finally
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lCustomer.Free;
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end;
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end;
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Log('Now there are ' + TMVCActiveRecord.Count<TCustomerPlain>().ToString + ' row/s for entity ' +
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TCustomerPlain.ClassName);
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TMVCActiveRecord.DeleteRQL(TCustomerPlain, 'lt(id,90)');
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lCustomer := TMVCActiveRecord.GetByPK<TCustomerPlain>(lID);
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try
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Assert(not lCustomer.Code.HasValue);
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lCustomer.Code.Value := '5678';
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lCustomer.Note := lCustomer.Note + sLineBreak + 'Code changed to 5678';
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lCustomer.Update;
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Log('Just updated Customer ' + lID.ToString);
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finally
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lCustomer.Free;
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end;
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lCustomer := TCustomerPlain.Create;
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try
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lCustomer.LoadByPK(lID);
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lCustomer.Code.Value := '9012';
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lCustomer.Update;
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finally
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lCustomer.Free;
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end;
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lCustomer := TMVCActiveRecord.GetByPK<TCustomerPlain>(lID);
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try
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lCustomer.Delete;
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Log('Just deleted Customer ' + lID.ToString);
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finally
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lCustomer.Free;
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end;
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end;
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procedure TMainForm.btnCRUDWithGUIDClick(Sender: TObject);
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var
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lTestNote: string;
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lCustWithGUID: TCustomerWithGUID;
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lIDGUID: TGUID;
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begin
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TMVCActiveRecord.DeleteAll(TCustomerWithGUID);
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Log('** Using GUID as primary key');
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lCustWithGUID := TCustomerWithGUID.Create;
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try
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Log('Entity ' + TCustomerWithGUID.ClassName + ' is mapped to table ' + lCustWithGUID.TableName);
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lCustWithGUID.GUID := TGUID.NewGuid;
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lCustWithGUID.CompanyName := 'Google Inc.';
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lCustWithGUID.City := 'Montain View, CA';
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lCustWithGUID.Note := 'Μῆνιν ἄειδε θεὰ Πηληϊάδεω Ἀχιλῆος οὐλομένην 😁';
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lCustWithGUID.Insert;
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lIDGUID := lCustWithGUID.GUID;
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Log('Just inserted Customer With GUID ' + lIDGUID.ToString);
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finally
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lCustWithGUID.Free;
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end;
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lCustWithGUID := TMVCActiveRecord.GetByPK<TCustomerWithGUID>(lIDGUID);
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try
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Assert(not lCustWithGUID.Code.HasValue);
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lCustWithGUID.Code.Value := '5678';
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lCustWithGUID.Note := lCustWithGUID.Note + sLineBreak + 'Code changed to 5678 🙂';
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lTestNote := lCustWithGUID.Note;
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lCustWithGUID.Update;
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Log('Just updated Customer ' + lIDGUID.ToString);
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finally
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lCustWithGUID.Free;
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end;
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lCustWithGUID := TCustomerWithGUID.Create;
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try
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lCustWithGUID.LoadByPK(lIDGUID);
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lCustWithGUID.Code.Value := '😉9012🙂';
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lCustWithGUID.Update;
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lCustWithGUID.GUID := TGUID.NewGuid;
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lCustWithGUID.Insert;
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finally
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lCustWithGUID.Free;
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end;
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lCustWithGUID := TMVCActiveRecord.GetByPK<TCustomerWithGUID>(lIDGUID);
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try
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lCustWithGUID.Delete;
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Log('Just deleted Customer ' + lIDGUID.ToString);
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finally
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lCustWithGUID.Free;
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end;
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end;
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procedure TMainForm.btnCRUDWithOptionsClick(Sender: TObject);
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var
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lCustomer: TCustomerWithOptions;
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lID: Integer;
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begin
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Log('** CRUD test with fields options');
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lCustomer := TCustomerWithOptions.Create;
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try
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{
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'Code' will not be persisted on table because defined as 'foReadOnly'
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}
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lCustomer.Code := '1234'; // "Code" will be skipped in insert and in update as well
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lCustomer.CompanyName := 'Google Inc.'; // "CompanyName" will be skipped in insert
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lCustomer.City := 'Montain View, CA'; // "City" will be skipped in update
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lCustomer.Insert;
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lID := lCustomer.ID;
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Log('Just inserted Customer ' + lID.ToString + ' with fields options');
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finally
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lCustomer.Free;
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end;
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//let's check that code is empty
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lCustomer := TMVCActiveRecord.GetByPK<TCustomerWithOptions>(lID);
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try
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Assert(lCustomer.Code.IsNull); // it's null
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Assert(lCustomer.CompanyName.IsEmpty); //empty string
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Assert(lCustomer.City = 'Montain View, CA'); //inserted
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lCustomer.Code := '1234'; // "Code" will be skipped in insert and in update as well
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lCustomer.CompanyName := 'Google Inc.'; // "CompanyName" will be saved
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lCustomer.City := 'Via Roma 10, ITALY'; // "City" will be skipped in update
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lCustomer.Update;
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finally
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lCustomer.Free;
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end;
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//let's check
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lCustomer := TMVCActiveRecord.GetByPK<TCustomerWithOptions>(lID);
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try
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Assert(lCustomer.Code.IsNull); // it's null
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Assert(lCustomer.CompanyName = 'Google Inc.'); //correctly updated
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Assert(lCustomer.City = 'Montain View, CA'); // not updated, mantains old value
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finally
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lCustomer.Free;
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end;
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{
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//if underlying field is not null, it is loaded as usual
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TMVCActiveRecord.CurrentConnection.ExecSQL('update customers set code = ''XYZ'' where id = ?', [lID]);
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lCustomer := TMVCActiveRecord.GetByPK<TCustomerWithReadOnlyFields>(lID);
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try
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Assert('XYZ' = lCustomer.Code);
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lCustomer.CompanyName := lCustomer.CompanyName + ' changed!';
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lCustomer.Code := 'this code will not be saved';
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lCustomer.Update; //do not save field "code"
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Log('Just updated Customer ' + lID.ToString);
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finally
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lCustomer.Free;
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end;
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//but being foReadOnly is not updated
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lCustomer := TMVCActiveRecord.GetByPK<TCustomerWithReadOnlyFields>(lID);
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try
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Assert('XYZ' = lCustomer.Code);
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lCustomer.Delete;
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Log('Just deleted Customer ' + lID.ToString + ' with a R/O field');
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finally
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lCustomer.Free;
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end;
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}
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end;
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|
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procedure TMainForm.btnCRUDWithStringPKsClick(Sender: TObject);
|
|
var
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lCustomer: TCustomerWithCode;
|
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lCode: string;
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I: Integer;
|
|
begin
|
|
Log('** Simple CRUD (with string pks) test');
|
|
Log('There are ' + TMVCActiveRecord.Count<TCustomerWithCode>().ToString + ' row/s for entity ' +
|
|
TCustomerWithCode.ClassName);
|
|
TMVCActiveRecord.DeleteAll(TCustomerWithCode);
|
|
Log('Deleting all entities ' + TCustomerWithCode.ClassName);
|
|
for I := 1 to 100 do
|
|
begin
|
|
lCustomer := TCustomerWithCode.Create;
|
|
try
|
|
lCustomer.Code := I.ToString.PadLeft(4, '0');
|
|
// just for test!!
|
|
case I mod 3 of
|
|
0:
|
|
lCustomer.CompanyName := 'Google Inc.';
|
|
1:
|
|
lCustomer.CompanyName := 'bit Time Professionals';
|
|
2:
|
|
lCustomer.CompanyName := 'Walt Disney Corp.';
|
|
end;
|
|
lCustomer.City := 'Montain View, CA';
|
|
lCustomer.Note := 'Hello there!';
|
|
lCustomer.Insert;
|
|
lCode := lCustomer.Code.Value;
|
|
Log('Just inserted Customer ' + lCode);
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
end;
|
|
|
|
Log('Now there are ' + TMVCActiveRecord.Count<TCustomerWithCode>().ToString + ' row/s for entity '
|
|
+ TCustomerPlain.ClassName);
|
|
TMVCActiveRecord.DeleteRQL(TCustomerWithCode, 'lt(code,"0090")');
|
|
|
|
lCustomer := TMVCActiveRecord.GetByPK<TCustomerWithCode>(lCode);
|
|
try
|
|
Assert(lCustomer.Code.HasValue);
|
|
lCustomer.Note := lCustomer.Note + sLineBreak + 'Note changed!';
|
|
lCustomer.Update;
|
|
Log('Just updated Customer ' + lCode);
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
lCustomer := TCustomerWithCode.Create;
|
|
try
|
|
lCustomer.LoadByPK(lCode);
|
|
lCustomer.CompanyName := 'My New Company!';
|
|
lCustomer.Update;
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
lCustomer := TMVCActiveRecord.GetByPK<TCustomerWithCode>(lCode);
|
|
try
|
|
lCustomer.Delete;
|
|
Log('Just deleted Customer ' + lCode);
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
end;
|
|
|
|
procedure TMainForm.btnCustomTableClick(Sender: TObject);
|
|
var
|
|
lCustomer: TCustomerOnCustomers2;
|
|
lID: Integer;
|
|
lTestNote: string;
|
|
begin
|
|
Log('** Simple CRUD test using a custom tablename (defined in GetCustomTableName)');
|
|
Log('There are ' + TMVCActiveRecord.Count<TCustomerOnCustomers2>().ToString + ' row/s for entity ' +
|
|
TCustomerOnCustomers2.ClassName);
|
|
lCustomer := TCustomerOnCustomers2.Create;
|
|
try
|
|
Log('Entity ' + TCustomerOnCustomers2.ClassName + ' is mapped to table ' + lCustomer.TableName);
|
|
lCustomer.CompanyName := 'Google Inc.';
|
|
lCustomer.City := 'Montain View, CA';
|
|
lCustomer.Note := 'Μῆνιν ἄειδε θεὰ Πηληϊάδεω Ἀχιλῆος οὐλομένην 😁';
|
|
lCustomer.Insert;
|
|
lID := lCustomer.ID;
|
|
Log('Just inserted Customer ' + lID.ToString);
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
lCustomer := TMVCActiveRecord.GetByPK<TCustomerOnCustomers2>(lID);
|
|
try
|
|
Assert(not lCustomer.Code.HasValue);
|
|
lCustomer.Code.Value := '5678';
|
|
lCustomer.Note := lCustomer.Note + sLineBreak + 'Code changed to 5678 🙂';
|
|
lTestNote := lCustomer.Note;
|
|
lCustomer.Update;
|
|
Log('Just updated Customer ' + lID.ToString);
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
lCustomer := TCustomerOnCustomers2.Create;
|
|
try
|
|
lCustomer.LoadByPK(lID);
|
|
lCustomer.Code.Value := '😉9012🙂';
|
|
lCustomer.Update;
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
lCustomer := TCustomerOnCustomers2.Create;
|
|
try
|
|
lCustomer.LoadByPK(lID);
|
|
Assert(lCustomer.Code.Value = '😉9012🙂');
|
|
Assert(lCustomer.Note = lTestNote);
|
|
lCustomer.Update;
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
lCustomer := TMVCActiveRecord.GetByPK<TCustomerOnCustomers2>(lID);
|
|
try
|
|
lCustomer.Delete;
|
|
Log('Just deleted Customer ' + lID.ToString);
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
// Overwriting constructor (useful for TMVCActiveRecordController)
|
|
var lConC2 := TCustomerOnCustomers2.Create;
|
|
try
|
|
Log('Entity ' + TCustomer.ClassName + ' is mapped to table ' + lConC2.TableName);
|
|
lConC2.CompanyName := 'Google Inc.';
|
|
lConC2.City := 'Montain View, CA';
|
|
lConC2.Note := 'Μῆνιν ἄειδε θεὰ Πηληϊάδεω Ἀχιλῆος οὐλομένην 😁';
|
|
lConC2.Insert;
|
|
lID := lConC2.ID;
|
|
Log('Just inserted Customer ' + lID.ToString + ' on customers2');
|
|
finally
|
|
lConC2.Free;
|
|
end;
|
|
|
|
lConC2 := TMVCActiveRecord.GetByPK<TCustomerOnCustomers2>(lID);
|
|
try
|
|
Log('Entity ' + TCustomer.ClassName + ' is mapped to table ' + lConC2.TableName);
|
|
lConC2.CompanyName := 'Google Inc.';
|
|
lConC2.City := 'Montain View, CA';
|
|
lConC2.Note := 'Μῆνιν ἄειδε θεὰ Πηληϊάδεω Ἀχιλῆος οὐλομένην 😁';
|
|
lConC2.Insert;
|
|
lID := lConC2.ID;
|
|
Log('Just inserted Customer ' + lID.ToString + ' on customers2');
|
|
finally
|
|
lConC2.Free;
|
|
end;
|
|
|
|
|
|
end;
|
|
|
|
procedure TMainForm.btnInheritanceClick(Sender: TObject);
|
|
var
|
|
lCustomerEx: TCustomerEx;
|
|
begin
|
|
Log('** Inheritace test');
|
|
lCustomerEx := TCustomerEx.Create;
|
|
try
|
|
lCustomerEx.LoadByPK(1);
|
|
finally
|
|
lCustomerEx.Free;
|
|
end;
|
|
end;
|
|
|
|
procedure TMainForm.btnIntegersAsBoolClick(Sender: TObject);
|
|
begin
|
|
Log('** Bool as Integer');
|
|
Log(' Only in the mapping layer it is possibile to map an integer field used ');
|
|
Log(' as boolean with values (0,1) as a boolean property');
|
|
Log(' --> (False is stored as 0, True is stored as 1) <--');
|
|
TMVCActiveRecord.DeleteAll(TIntegersAsBooleans);
|
|
|
|
for var I := 0 to 1 do
|
|
begin
|
|
for var b := False to True do
|
|
begin
|
|
var lTest1 := TIntegersAsBooleans.Create;
|
|
try
|
|
lTest1.DoneAsBoolean := b;
|
|
lTest1.DoneAsInteger := I;
|
|
lTest1.Store;
|
|
finally
|
|
lTest1.Free;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
{ ** WARNING **
|
|
While mapping layer recognize a boolean stored as integer, queries must still
|
|
use the actual type (integer) instead of the mapped types}
|
|
Assert(2 = TMVCActiveRecord.Count<TIntegersAsBooleans>('eq(doneasboolean,true)'));
|
|
Assert(2 = TMVCActiveRecord.Count<TIntegersAsBooleans>('eq(doneasinteger,1)')); {the boolean attribute as integer}
|
|
Assert(1 = TMVCActiveRecord.Count<TIntegersAsBooleans>('and(eq(doneasboolean,true),eq(doneasinteger,1))'));
|
|
Assert(1 = TMVCActiveRecord.Count<TIntegersAsBooleans>('and(eq(doneasboolean,false),eq(doneasinteger,0))'));
|
|
|
|
var lList := TMVCActiveRecord.SelectRQL<TIntegersAsBooleans>('sort(+id)', 10);
|
|
try
|
|
Assert(lList.Count = 4);
|
|
var lIdx := 0;
|
|
for var I := 0 to 1 do
|
|
begin
|
|
for var b := False to True do
|
|
begin
|
|
Assert(b = lList[lIdx].DoneAsBoolean);
|
|
Assert(I = lList[lIdx].DoneAsInteger);
|
|
Inc(lIdx);
|
|
end;
|
|
end;
|
|
finally
|
|
lList.Free;
|
|
end;
|
|
end;
|
|
|
|
procedure TMainForm.btnJSON_XML_TypesClick(Sender: TObject);
|
|
var
|
|
lCTypes: TComplexTypes;
|
|
lID: Int64;
|
|
begin
|
|
if GetBackEndByConnection(TMVCActiveRecord.CurrentConnection) = TMVCActiveRecordBackEnd.PostgreSQL then
|
|
begin
|
|
TMVCActiveRecord.DeleteAll(TComplexTypes);
|
|
|
|
lCTypes := TComplexTypes.Create;
|
|
try
|
|
lCTypes.JSON := '{"field_type":"json"}';
|
|
lCTypes.JSONB := '{"field_type":"jsonb"}';
|
|
lCTypes.XML := '<field_type>xml</field_type>';
|
|
lCTypes.Insert;
|
|
lID := lCTypes.ID;
|
|
finally
|
|
lCTypes.Free;
|
|
end;
|
|
|
|
lCTypes := TMVCActiveRecord.GetByPK<TComplexTypes>(lID);
|
|
try
|
|
lCTypes.JSON := '{"field_type":"json", "updated": true}';
|
|
lCTypes.JSONB := '{"field_type":"jsonb", "updated": true}';
|
|
lCTypes.XML := '<field_type updated="true">xml</field_type>';
|
|
lCTypes.Update;
|
|
finally
|
|
lCTypes.Free;
|
|
end;
|
|
|
|
Log('Executing ==> (jsonb_field ->> ''updated'')::bool = true');
|
|
lCTypes := TMVCActiveRecord.GetFirstByWhere<TComplexTypes>('(jsonb_field ->> ''updated'')::bool = true', []);
|
|
try
|
|
Log('JSON ==> ' + lCTypes.JSON);
|
|
finally
|
|
lCTypes.Free;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure TMainForm.btnMergeClick(Sender: TObject);
|
|
var
|
|
lCustomer: TCustomer;
|
|
lCustomers: TObjectList<TCustomer>;
|
|
lCustomersChanges: TObjectList<TCustomer>;
|
|
begin
|
|
Log('** IMVCMultiExecutor demo');
|
|
TMVCActiveRecord.DeleteAll(TCustomer);
|
|
LoadCustomers;
|
|
lCustomers := TMVCActiveRecord.SelectRQL<TCustomer>('eq(rating,1)', 1000);
|
|
try
|
|
lCustomersChanges := TObjectList<TCustomer>.Create(True);
|
|
try
|
|
//these 2 customers will be updated
|
|
lCustomer := TCustomer.Create;
|
|
lCustomersChanges.Add(lCustomer);
|
|
lCustomer.ID := lCustomers[0].ID;
|
|
lCustomer.Code := 'C8765';
|
|
lCustomer.CompanyName := '(changed) Company1';
|
|
lCustomer.City := '(changed) City';
|
|
lCustomer.Rating := 1;
|
|
|
|
lCustomer := TCustomer.Create;
|
|
lCustomersChanges.Add(lCustomer);
|
|
lCustomer.ID := lCustomers[1].ID;
|
|
lCustomer.Code := lCustomers[1].Code;
|
|
lCustomer.CompanyName := '(changed) Company2';
|
|
lCustomer.City := '(changed) City';
|
|
lCustomer.Rating := 1;
|
|
|
|
|
|
//these 2 customer will be created
|
|
lCustomer := TCustomer.Create;
|
|
lCustomersChanges.Add(lCustomer);
|
|
lCustomer.Code := 'C9898';
|
|
lCustomer.CompanyName := '(new) Company3';
|
|
lCustomer.City := '(new) New City2';
|
|
lCustomer.Rating := 1;
|
|
|
|
lCustomer := TCustomer.Create;
|
|
lCustomersChanges.Add(lCustomer);
|
|
lCustomer.Code := 'C2343';
|
|
lCustomer.CompanyName := '(new) Company4';
|
|
lCustomer.City := '(new) New City2';
|
|
lCustomer.Rating := 1;
|
|
|
|
//all the other customers will be deleted
|
|
|
|
//calculate the unit-of-work to merge the lists
|
|
var lUOW := TMVCActiveRecord.Merge<TCustomer>(lCustomers, lCustomersChanges);
|
|
//apply the UnitOfWork
|
|
lUOW.Apply(
|
|
procedure (const Customer: TCustomer; const EntityAction: TMVCEntityAction; var Handled: Boolean)
|
|
begin
|
|
Handled := False; //set it to true to execute action manually
|
|
case EntityAction of
|
|
eaCreate: Log('Inserting Customer : ' + Customer.ToString);
|
|
eaUpdate: Log('Updating Customer : ' + Customer.ToString);
|
|
eaDelete: Log('Deleting Customer : ' + Customer.ToString);
|
|
end;
|
|
end);
|
|
|
|
|
|
finally
|
|
lCustomersChanges.Free;
|
|
end;
|
|
finally
|
|
lCustomers.Free;
|
|
end;
|
|
|
|
lCustomers := TMVCActiveRecord.SelectRQL<TCustomer>('eq(rating,1)', 1000);
|
|
try
|
|
Assert(lCustomers.Count = 4, 'Expected 4 customers, got ' + lCustomers.Count.ToString);
|
|
finally
|
|
lCustomers.Free;
|
|
end;
|
|
end;
|
|
|
|
procedure TMainForm.btnMultiThreadingClick(Sender: TObject);
|
|
var
|
|
lTasks: TArray<ITask>;
|
|
lProc: TProc;
|
|
begin
|
|
Log('** Multithreading test');
|
|
TMVCActiveRecord.DeleteRQL(TCustomer,
|
|
'in(City,["Rome","New York","London","Melbourne","Berlin"])');
|
|
|
|
lProc := procedure
|
|
var
|
|
lCustomer: TCustomer;
|
|
I: Integer;
|
|
begin
|
|
ActiveRecordConnectionsRegistry.AddDefaultConnection(CON_DEF_NAME);
|
|
try
|
|
lCustomer := TCustomer.Create;
|
|
try
|
|
for I := 1 to 50 do
|
|
begin
|
|
lCustomer.ID.Clear;
|
|
lCustomer.Code := Format('%5.5d', [TThread.CurrentThread.ThreadID, I]);
|
|
lCustomer.City := Cities[Random(high(Cities) + 1)];
|
|
lCustomer.CompanyName :=
|
|
Format('%s %s %s', [lCustomer.City, Stuff[Random(high(Stuff) + 1)],
|
|
CompanySuffix[Random(high(CompanySuffix) + 1)]]);
|
|
lCustomer.Note := lCustomer.CompanyName + ' is from ' + lCustomer.City;
|
|
lCustomer.Insert;
|
|
end;
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
finally
|
|
ActiveRecordConnectionsRegistry.RemoveDefaultConnection;
|
|
end;
|
|
end;
|
|
|
|
lTasks := [
|
|
TTask.Run(lProc), TTask.Run(lProc), TTask.Run(lProc), TTask.Run(lProc), TTask.Run(lProc),
|
|
TTask.Run(lProc), TTask.Run(lProc), TTask.Run(lProc), TTask.Run(lProc), TTask.Run(lProc),
|
|
TTask.Run(lProc), TTask.Run(lProc), TTask.Run(lProc), TTask.Run(lProc), TTask.Run(lProc),
|
|
TTask.Run(lProc), TTask.Run(lProc), TTask.Run(lProc), TTask.Run(lProc), TTask.Run(lProc),
|
|
TTask.Run(lProc), TTask.Run(lProc), TTask.Run(lProc), TTask.Run(lProc), TTask.Run(lProc)
|
|
];
|
|
TTask.WaitForAll(lTasks);
|
|
|
|
ShowMessage('Just inserted ' + TMVCActiveRecord.Count(TCustomer,
|
|
'in(City,["Rome","New York","London","Melbourne","Berlin"])').ToString + ' records by ' + Length(lTasks).ToString + ' threads');
|
|
end;
|
|
|
|
procedure TMainForm.btnNamedQueryClick(Sender: TObject);
|
|
begin
|
|
Log('** Named SQL Query');
|
|
|
|
LoadCustomers(10);
|
|
|
|
Log('QuerySQL: BestCustomers');
|
|
var lCustomers := TMVCActiveRecord.SelectByNamedQuery<TCustomer>('BestCustomers', [], []);
|
|
try
|
|
for var lCustomer in lCustomers do
|
|
begin
|
|
Log(Format('%4d - %8.5s - %s', [lCustomer.ID.ValueOrDefault, lCustomer.Code.ValueOrDefault,
|
|
lCustomer.CompanyName.ValueOrDefault]));
|
|
end;
|
|
finally
|
|
lCustomers.Free;
|
|
end;
|
|
|
|
Log('QuerySQL: WithRatingGtOrEqTo');
|
|
lCustomers := TMVCActiveRecord.SelectByNamedQuery<TCustomer>('WithRatingGtOrEqTo', [4], [ftInteger]);
|
|
try
|
|
for var lCustomer in lCustomers do
|
|
begin
|
|
Log(Format('%4d - %8.5s - %s', [lCustomer.ID.ValueOrDefault, lCustomer.Code.ValueOrDefault,
|
|
lCustomer.CompanyName.ValueOrDefault]));
|
|
end;
|
|
finally
|
|
lCustomers.Free;
|
|
end;
|
|
|
|
Log('QuerySQL: RatingLessThanPar');
|
|
lCustomers := TMVCActiveRecord.SelectByNamedQuery<TCustomer>('RatingLessThanPar', [4], [ftInteger]);
|
|
try
|
|
for var lCustomer in lCustomers do
|
|
begin
|
|
Log(Format('%4d - %8.5s - %s', [lCustomer.ID.ValueOrDefault, lCustomer.Code.ValueOrDefault,
|
|
lCustomer.CompanyName.ValueOrDefault]));
|
|
end;
|
|
finally
|
|
lCustomers.Free;
|
|
end;
|
|
|
|
Log('QuerySQL: RatingLessThanPar (using classref)');
|
|
var lCustomersList := TMVCActiveRecord.SelectByNamedQuery(TCustomer, 'RatingLessThanPar', [4], [ftInteger], []);
|
|
try
|
|
for var lCustomer in TObjectList<TCustomer>(lCustomersList) do
|
|
begin
|
|
Log(Format('%4d - %8.5s - %s', [lCustomer.ID.ValueOrDefault, lCustomer.Code.ValueOrDefault,
|
|
lCustomer.CompanyName.ValueOrDefault]));
|
|
end;
|
|
finally
|
|
lCustomersList.Free;
|
|
end;
|
|
|
|
|
|
Log('QuerySQL: RatingEqualsToPar');
|
|
lCustomers := TMVCActiveRecord.SelectByNamedQuery<TCustomer>('RatingEqualsToPar', [3], [ftInteger]);
|
|
try
|
|
for var lCustomer in lCustomers do
|
|
begin
|
|
Log(Format('%4d - %8.5s - %s', [lCustomer.ID.ValueOrDefault, lCustomer.Code.ValueOrDefault,
|
|
lCustomer.CompanyName.ValueOrDefault]));
|
|
end;
|
|
finally
|
|
lCustomers.Free;
|
|
end;
|
|
|
|
|
|
var lTmpSQLQueryWithName: TSQLQueryWithName;
|
|
if TMVCActiveRecord.TryGetSQLQuery<TCustomer>('GetAllCustomers', lTmpSQLQueryWithName) then
|
|
begin
|
|
Log('QuerySQL: Stored Procedure "GetAllCustomers"');
|
|
lCustomers := TMVCActiveRecord.SelectByNamedQuery<TCustomer>('GetAllCustomers', [], [], [loIgnoreNotExistentFields]);
|
|
try
|
|
for var lCustomer in lCustomers do
|
|
begin
|
|
Log(Format('%4d - %8.5s - %s', [lCustomer.ID.ValueOrDefault, lCustomer.Code.ValueOrDefault,
|
|
lCustomer.CompanyName.ValueOrDefault]));
|
|
end;
|
|
finally
|
|
lCustomers.Free;
|
|
end;
|
|
end;
|
|
|
|
Log('** Named RQL Query');
|
|
Log('QueryRQL: RatingLessThanPar');
|
|
lCustomers := TMVCActiveRecord.SelectRQLByNamedQuery<TCustomer>('RatingLessThanPar', [4], 1000);
|
|
try
|
|
for var lCustomer in lCustomers do
|
|
begin
|
|
Log(Format('%4d - %8.5s - %s', [lCustomer.ID.ValueOrDefault, lCustomer.Code.ValueOrDefault,
|
|
lCustomer.CompanyName.ValueOrDefault]));
|
|
end;
|
|
finally
|
|
lCustomers.Free;
|
|
end;
|
|
|
|
Log('QueryRQL: RatingLessThanPar (using classref)');
|
|
lCustomersList := TMVCActiveRecord.SelectRQLByNamedQuery(TCustomer, 'RatingLessThanPar', [4], 1000);
|
|
try
|
|
for var lCustomer in TObjectList<TCustomer>(lCustomersList) do
|
|
begin
|
|
Log(Format('%4d - %8.5s - %s', [lCustomer.ID.ValueOrDefault, lCustomer.Code.ValueOrDefault,
|
|
lCustomer.CompanyName.ValueOrDefault]));
|
|
end;
|
|
finally
|
|
lCustomersList.Free;
|
|
end;
|
|
|
|
Log('QueryRQL: RatingEqualsToPar');
|
|
lCustomers := TMVCActiveRecord.SelectRQLByNamedQuery<TCustomer>('RatingEqualsToPar', [3], 1000);
|
|
try
|
|
for var lCustomer in lCustomers do
|
|
begin
|
|
Log(Format('%4d - %8.5s - %s', [lCustomer.ID.ValueOrDefault, lCustomer.Code.ValueOrDefault,
|
|
lCustomer.CompanyName.ValueOrDefault]));
|
|
end;
|
|
finally
|
|
lCustomers.Free;
|
|
end;
|
|
|
|
//RatingLessThanPar
|
|
var lTmpRQLQueryWithName: TRQLQueryWithName;
|
|
if TMVCActiveRecord.TryGetRQLQuery<TCustomer>('RatingLessThanPar', lTmpRQLQueryWithName) then
|
|
begin
|
|
Log(Format('"%s" RQLQuery is available with text: %s', [lTmpRQLQueryWithName.Name, lTmpRQLQueryWithName.RQLText]));
|
|
end
|
|
else
|
|
begin
|
|
Log(Format('"%s" RQLQuery is not available', ['RatingLessThanPar']));
|
|
end;
|
|
end;
|
|
|
|
procedure TMainForm.btnNullablesClick(Sender: TObject);
|
|
var
|
|
lCustomer: TCustomer;
|
|
lID: Integer;
|
|
begin
|
|
Log('** Nullables Test');
|
|
Log('There are ' + TMVCActiveRecord.Count<TCustomer>().ToString + ' row/s for entity ' +
|
|
TCustomer.ClassName);
|
|
lCustomer := TCustomer.Create;
|
|
try
|
|
lCustomer.CompanyName := 'Google Inc.';
|
|
lCustomer.City := 'Montain View, CA';
|
|
lCustomer.Note := 'Hello there!';
|
|
lCustomer.Insert;
|
|
lID := lCustomer.ID;
|
|
Assert(not lCustomer.Code.HasValue);
|
|
Log('Just inserted Customer ' + lID.ToString);
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
lCustomer := TMVCActiveRecord.GetByPK<TCustomer>(lID);
|
|
try
|
|
Assert(not lCustomer.Code.HasValue);
|
|
Assert(not lCustomer.Rating.HasValue);
|
|
Assert(lCustomer.Rating.ValueOrDefault = 0);
|
|
lCustomer.Code.Value := '5678';
|
|
lCustomer.Rating.Value := 3;
|
|
Assert(lCustomer.Code.HasValue);
|
|
lCustomer.Note := lCustomer.Note + sLineBreak + 'Code changed to 5678';
|
|
lCustomer.Update;
|
|
Assert(lCustomer.Code.HasValue);
|
|
Assert(lCustomer.Rating.HasValue);
|
|
Log('Just updated Customer ' + lID.ToString);
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
lCustomer := TMVCActiveRecord.GetByPK<TCustomer>(lID);
|
|
try
|
|
Assert(lCustomer.Code.HasValue);
|
|
Assert(lCustomer.Rating.HasValue);
|
|
Assert(lCustomer.Code.ValueOrDefault = '5678');
|
|
Assert(lCustomer.Rating.ValueOrDefault = 3);
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
lCustomer := TCustomer.Create;
|
|
try
|
|
lCustomer.LoadByPK(lID);
|
|
lCustomer.Code.Value := '9012';
|
|
lCustomer.Update;
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
end;
|
|
|
|
procedure TMainForm.btnNullTestClick(Sender: TObject);
|
|
var
|
|
lTest: TNullablesTest;
|
|
lCustomer: TCustomer;
|
|
lID: Integer;
|
|
begin
|
|
Log('** Nullables Test');
|
|
TMVCActiveRecord.DeleteAll(TNullablesTest);
|
|
|
|
lTest := TNullablesTest.Create();
|
|
try
|
|
lTest.f_int2 := 2;
|
|
lTest.f_int4 := 4;
|
|
lTest.f_int8 := 8;
|
|
with TStreamWriter.Create(lTest.f_blob) do
|
|
try
|
|
write('Hello World');
|
|
finally
|
|
Free;
|
|
end;
|
|
lTest.Insert;
|
|
Log('Inserting nulls');
|
|
finally
|
|
lTest.Free;
|
|
end;
|
|
|
|
Log('Loading records with nulls');
|
|
lTest := TMVCActiveRecord.GetFirstByWhere<TNullablesTest>('f_int2 = ?', [2]);
|
|
try
|
|
Assert(lTest.f_int2.HasValue);
|
|
Assert(lTest.f_int4.HasValue);
|
|
Assert(lTest.f_int8.HasValue);
|
|
Assert(not lTest.f_string.HasValue);
|
|
Assert(not lTest.f_bool.HasValue);
|
|
Assert(not lTest.f_date.HasValue);
|
|
Assert(not lTest.f_time.HasValue);
|
|
Assert(not lTest.f_datetime.HasValue);
|
|
Assert(not lTest.f_float4.HasValue);
|
|
Assert(not lTest.f_float8.HasValue);
|
|
Assert(not lTest.f_bool.HasValue);
|
|
Assert(Assigned(lTest));
|
|
lTest.f_int4 := lTest.f_int4.Value + 4;
|
|
lTest.f_int8 := lTest.f_int8.Value + 8;
|
|
lTest.f_blob.Size := 0;
|
|
lTest.Update;
|
|
finally
|
|
lTest.Free;
|
|
end;
|
|
|
|
lTest := TMVCActiveRecord.GetFirstByWhere<TNullablesTest>('f_int2 = ?', [2]);
|
|
try
|
|
Assert(lTest.f_int2.ValueOrDefault = 2);
|
|
Assert(lTest.f_int4.ValueOrDefault = 8);
|
|
Assert(lTest.f_int8.ValueOrDefault = 16);
|
|
Assert(not lTest.f_string.HasValue);
|
|
Assert(not lTest.f_bool.HasValue);
|
|
Assert(not lTest.f_date.HasValue);
|
|
Assert(not lTest.f_time.HasValue);
|
|
Assert(not lTest.f_datetime.HasValue);
|
|
Assert(not lTest.f_float4.HasValue);
|
|
Assert(not lTest.f_float8.HasValue);
|
|
Assert(not lTest.f_bool.HasValue);
|
|
Assert(lTest.f_blob.Size = 0, 'Blob contains a value when should not');
|
|
TMVCActiveRecord.DeleteRQL(TNullablesTest, 'eq(f_int2,2)');
|
|
finally
|
|
lTest.Free;
|
|
end;
|
|
|
|
Assert(TMVCActiveRecord.GetFirstByWhere<TNullablesTest>('f_int2 = 2', [], False) = nil);
|
|
|
|
lTest := TNullablesTest.Create;
|
|
try
|
|
lTest.f_int2 := 2;
|
|
lTest.f_int4 := 4;
|
|
lTest.f_int8 := 8;
|
|
lTest.f_string := 'Hello World';
|
|
lTest.f_bool := True;
|
|
lTest.f_date := EncodeDate(2020, 02, 01);
|
|
lTest.f_time := EncodeTime(12, 24, 36, 0);
|
|
lTest.f_datetime := Now;
|
|
lTest.f_float4 := 1234.5678;
|
|
lTest.f_float8 := 12345678901234567890.0123456789;
|
|
lTest.f_currency := 1234567890.1234;
|
|
lTest.Insert;
|
|
finally
|
|
lTest.Free;
|
|
end;
|
|
|
|
Log('There are ' + TMVCActiveRecord.Count<TCustomer>().ToString + ' row/s for entity ' +
|
|
TCustomer.ClassName);
|
|
lCustomer := TCustomer.Create;
|
|
try
|
|
lCustomer.CompanyName := 'Google Inc.';
|
|
lCustomer.City := 'Montain View, CA';
|
|
lCustomer.Note := 'Hello there!';
|
|
lCustomer.Insert;
|
|
lID := lCustomer.ID;
|
|
Assert(not lCustomer.Code.HasValue);
|
|
Log('Just inserted Customer ' + lID.ToString);
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
lCustomer := TMVCActiveRecord.GetByPK<TCustomer>(lID);
|
|
try
|
|
Assert(not lCustomer.Code.HasValue);
|
|
Assert(not lCustomer.Rating.HasValue);
|
|
Assert(lCustomer.Rating.ValueOrDefault = 0);
|
|
lCustomer.Code.Value := '5678';
|
|
lCustomer.Rating.Value := 3;
|
|
Assert(lCustomer.Code.HasValue);
|
|
lCustomer.Note := lCustomer.Note + sLineBreak + 'Code changed to 5678';
|
|
lCustomer.Update;
|
|
Assert(lCustomer.Code.HasValue);
|
|
Assert(lCustomer.Rating.HasValue);
|
|
Log('Just updated Customer ' + lID.ToString + ' with nulls');
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
lCustomer := TMVCActiveRecord.GetByPK<TCustomer>(lID);
|
|
try
|
|
Assert(lCustomer.Code.HasValue);
|
|
Assert(lCustomer.Rating.HasValue);
|
|
Assert(lCustomer.Code.ValueOrDefault = '5678');
|
|
Assert(lCustomer.Rating.ValueOrDefault = 3);
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
lCustomer := TCustomer.Create;
|
|
try
|
|
lCustomer.LoadByPK(lID);
|
|
lCustomer.Code.Value := '9012';
|
|
lCustomer.Update;
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
end;
|
|
|
|
procedure TMainForm.btnPartitioningClick(Sender: TObject);
|
|
var
|
|
lCust1: TCustomerWithRate1;
|
|
lCust2: TCustomerWithRate2;
|
|
lList: TObjectList<TCustomerWithRate1>;
|
|
begin
|
|
Log('** Partitioning Test');
|
|
TMVCActiveRecord.DeleteAll(TCustomerWithRate1);
|
|
Assert(TMVCActiveRecord.Count(TCustomerWithRate1) = 0);
|
|
TMVCActiveRecord.DeleteAll(TCustomerWithRate2);
|
|
Assert(TMVCActiveRecord.Count(TCustomerWithRate2) = 0);
|
|
lCust1 := TCustomerWithRate1.Create;
|
|
try
|
|
lCust1.City := 'Rome';
|
|
lCust1.Code := '123';
|
|
lCust1.Store;
|
|
finally
|
|
lCust1.Free;
|
|
end;
|
|
lCust2 := TCustomerWithRate2.Create;
|
|
try
|
|
lCust2.City := 'Rome';
|
|
lCust2.Code := '456';
|
|
lCust2.Store;
|
|
Assert(TMVCActiveRecord.GetByPK<TCustomerWithRate1>(lCust2.ID, False) = nil);
|
|
finally
|
|
lCust2.Free;
|
|
end;
|
|
|
|
lList := TMVCActiveRecord.SelectRQL<TCustomerWithRate1>('eq(city,"Rome")',-1);
|
|
try
|
|
Assert(lList.Count = 1);
|
|
Assert(lList[0].Code = '123');
|
|
finally
|
|
lList.Free;
|
|
end;
|
|
|
|
Log('Retriving only TCustomerWithRate1');
|
|
Assert(TMVCActiveRecord.Count(TCustomerWithRate1) = 1);
|
|
Assert(TMVCActiveRecord.Count(TCustomerWithRate1, 'eq(code,"xxx")') = 0);
|
|
Log('Retriving only TCustomerWithRate2');
|
|
Assert(TMVCActiveRecord.Count(TCustomerWithRate2) = 1);
|
|
Assert(TMVCActiveRecord.Count(TCustomerWithRate2, 'eq(code,"xxx")') = 0);
|
|
end;
|
|
|
|
procedure TMainForm.btnReadAndWriteOnlyClick(Sender: TObject);
|
|
var
|
|
lArtWO, lArtWO2: TArticleWithWriteOnlyFields;
|
|
lArtRO: TArticleWithReadOnlyFields;
|
|
lID: NullableInt32;
|
|
lArt: TArticle;
|
|
begin
|
|
lArtWO := TArticleWithWriteOnlyFields.Create();
|
|
try
|
|
lArtWO.Description := 'Description1';
|
|
lArtWO.Price := 12;
|
|
lArtWO.Insert;
|
|
Log('Stored TArticleWithWriteOnlyFields');
|
|
lID := lArtWO.ID;
|
|
|
|
lArt := TMVCActiveRecord.GetByPK<TArticle>(lID);
|
|
try
|
|
Assert(lArtWO.Description = lArt.Description);
|
|
Assert(lArtWO.Price = lArt.Price);
|
|
Log('Check Stored version of TArticleWithWriteOnlyFields');
|
|
|
|
Log('Reading data using TArticleWithReadOnlyFields');
|
|
lArtRO := TMVCActiveRecord.GetByPK<TArticleWithReadOnlyFields>(lID);
|
|
try
|
|
Assert(lArtRO.Description = lArt.Description);
|
|
Assert(lArtRO.Price = lArt.Price);
|
|
Log('Check Read data of TArticleWithWriteOnlyFields using TArticleWithReadOnlyFields');
|
|
finally
|
|
lArtRO.Free;
|
|
end;
|
|
|
|
Log('Reading data using TArticleWithWriteOnlyFields (???)');
|
|
lArtWO2 := TMVCActiveRecord.GetByPK<TArticleWithWriteOnlyFields>(lID);
|
|
try
|
|
Assert(lArtWO2.ID.ValueOrDefault = lID.ValueOrDefault);
|
|
Assert(lArtWO2.Description = '');
|
|
Assert(lArtWO2.Price = 0);
|
|
finally
|
|
lArtWO2.Free;
|
|
end;
|
|
finally
|
|
lArt.Free;
|
|
end;
|
|
|
|
lArtRO := TArticleWithReadOnlyFields.Create();
|
|
try
|
|
lArtRO.Description := 'Description1';
|
|
lArtRO.Price := 12;
|
|
ShowMessage('Now an exception will be raised...');
|
|
lArtRO.Insert; // exception here :-)
|
|
finally
|
|
lArtRO.Free;
|
|
end;
|
|
|
|
finally
|
|
lArtWO.Free;
|
|
end;
|
|
end;
|
|
|
|
procedure TMainForm.btnReadOnlyClick(Sender: TObject);
|
|
begin
|
|
var lROCustomer := TMVCActiveRecord.GetFirstByWhere<TReadOnlyCustomer>('',[]);
|
|
try
|
|
lROCustomer.Code := '1234';
|
|
ShowMessage('An exception is going to be raised');
|
|
lROCustomer.Update();
|
|
finally
|
|
lROCustomer.Free;
|
|
end;
|
|
end;
|
|
|
|
procedure TMainForm.btnRelationsClick(Sender: TObject);
|
|
var
|
|
lCustomer: TCustomerEx;
|
|
lOrder: TOrder;
|
|
lOrderRows: TObjectList<TOrderDetail>;
|
|
lOrderRow: TOrderDetail;
|
|
lOrderDetail: TOrderDetail;
|
|
I: Integer;
|
|
j: Integer;
|
|
begin
|
|
Log('** Relations test');
|
|
TMVCActiveRecord.DeleteAll(TCustomerEx);
|
|
|
|
lCustomer := TCustomerEx.Create;
|
|
try
|
|
lCustomer.Code := '001';
|
|
lCustomer.CompanyName := 'Google Inc.';
|
|
lCustomer.Insert;
|
|
for I := 1 to 3 do
|
|
begin
|
|
lCustomer.Orders.Add(TOrder.Create);
|
|
lCustomer.Orders.Last.CustomerID := lCustomer.ID;
|
|
lCustomer.Orders.Last.OrderDate := EncodeDate(2018, 5 + I, 20 + I);
|
|
lCustomer.Orders.Last.Total := I * 3;
|
|
lCustomer.Orders.Last.Insert;
|
|
|
|
for j := 1 to 4 do
|
|
begin
|
|
lOrderDetail := TOrderDetail.Create;
|
|
try
|
|
lOrderDetail.OrderID := lCustomer.Orders.Last.ID;
|
|
lOrderDetail.ArticleID := j;
|
|
lOrderDetail.Price := Random(j * 10);
|
|
lOrderDetail.Discount := j;
|
|
lOrderDetail.Quantity := j * 2;
|
|
lOrderDetail.Description := 'MY PRODUCT ' + I.ToString + '/' + j.ToString;
|
|
lOrderDetail.Total := j * j * j;
|
|
lOrderDetail.Insert;
|
|
finally
|
|
lOrderDetail.Free;
|
|
end;
|
|
end;
|
|
end;
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
lCustomer := TMVCActiveRecord.GetOneByWhere<TCustomerEx>('Code = ?', ['001']);
|
|
try
|
|
Log(lCustomer.CompanyName);
|
|
for lOrder in lCustomer.Orders do
|
|
begin
|
|
Log(Format(' %5.5d - %s - %m', [lOrder.ID.Value, datetostr(lOrder.OrderDate), lOrder.Total]));
|
|
lOrderRows := TMVCActiveRecord.Where<TOrderDetail>('id_order = ?', [lOrder.ID]);
|
|
try
|
|
for lOrderRow in lOrderRows do
|
|
begin
|
|
Log(Format(' %-20s - %4d - %m', [lOrderRow.Description, lOrderRow.Quantity,
|
|
lOrder.Total]));
|
|
end;
|
|
Log('');
|
|
finally
|
|
lOrderRows.Free;
|
|
end;
|
|
end;
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
end;
|
|
|
|
procedure TMainForm.btnRQLClick(Sender: TObject);
|
|
var
|
|
lList: TMVCActiveRecordList;
|
|
lItem: TMVCActiveRecord;
|
|
lCustomer: TCustomer;
|
|
lCustList: TObjectList<TCustomer>;
|
|
lRecCount: Integer;
|
|
const
|
|
cRQL1 = 'in(City,["Rome","London"]);sort(+code);limit(0,50)';
|
|
cRQL2 = 'and(eq(City,"Rome"),or(contains(CompanyName,"GAS"),contains(CompanyName,"Motors")))';
|
|
begin
|
|
LoadCustomers;
|
|
|
|
Log('** RQL Queries Test');
|
|
Log('>> RQL Query (1) - ' + cRQL1);
|
|
lList := TMVCActiveRecord.SelectRQL(TCustomer, cRQL1, 20);
|
|
try
|
|
Log(lList.Count.ToString + ' record/s found');
|
|
for lItem in lList do
|
|
begin
|
|
lCustomer := TCustomer(lItem);
|
|
Log(Format('%5s - %s (%s)', [lCustomer.Code.ValueOrDefault,
|
|
lCustomer.CompanyName.ValueOrDefault, lCustomer.City]));
|
|
end;
|
|
finally
|
|
lList.Free;
|
|
end;
|
|
|
|
Log('>> RQL Query (2) - ' + cRQL2);
|
|
lCustList := TMVCActiveRecord.SelectRQL<TCustomer>(cRQL2, 20);
|
|
try
|
|
Log(lCustList.Count.ToString + ' record/s found');
|
|
for lCustomer in lCustList do
|
|
begin
|
|
Log(Format('%5s - %s (%s)', [lCustomer.Code.ValueOrDefault,
|
|
lCustomer.CompanyName.ValueOrDefault, lCustomer.City]));
|
|
end;
|
|
finally
|
|
lCustList.Free;
|
|
end;
|
|
|
|
Log('**RQL Query (3) - ' + cRQL2);
|
|
lList := TMVCActiveRecord.SelectRQL(TCustomer, cRQL2, 20);
|
|
try
|
|
Log(lList.Count.ToString + ' record/s found');
|
|
for lItem in lList do
|
|
begin
|
|
lCustomer := TCustomer(lItem);
|
|
Log(Format('%5s - %s (%s)', [lCustomer.Code.ValueOrDefault,
|
|
lCustomer.CompanyName.ValueOrDefault, lCustomer.City]));
|
|
end;
|
|
finally
|
|
lList.Free;
|
|
end;
|
|
|
|
Log('**RQL Query (4) - <empty> with limit 20');
|
|
lList := TMVCActiveRecord.SelectRQL(TCustomer, '', 20);
|
|
try
|
|
Log(lList.Count.ToString + ' record/s found');
|
|
Assert(lList.Count = 20);
|
|
finally
|
|
lList.Free;
|
|
end;
|
|
|
|
Log('**RQL Query (5) - <empty> sort by code with limit 20');
|
|
lList := TMVCActiveRecord.SelectRQL(TCustomer, 'sort(+code)', 20);
|
|
try
|
|
Log(lList.Count.ToString + ' record/s found');
|
|
Assert(lList.Count = 20);
|
|
finally
|
|
lList.Free;
|
|
end;
|
|
|
|
Log('**RQL Query (6) - <empty> with limit 10');
|
|
lList := TMVCActiveRecord.SelectRQL(TCustomer, '', 10);
|
|
try
|
|
Log(lList.Count.ToString + ' record/s found');
|
|
Assert(lList.Count = 10);
|
|
finally
|
|
lList.Free;
|
|
end;
|
|
|
|
Log('**RQL Query (7) - <empty> with limit 1');
|
|
lList := TMVCActiveRecord.SelectRQL(TCustomer, '', 1);
|
|
try
|
|
Log(lList.Count.ToString + ' record/s found');
|
|
Assert(lList.Count = 1);
|
|
finally
|
|
lList.Free;
|
|
end;
|
|
|
|
Log('**RQL Query (8) - <empty> with limit 0');
|
|
lList := TMVCActiveRecord.SelectRQL(TCustomer, '', 0);
|
|
try
|
|
Log(lList.Count.ToString + ' record/s found');
|
|
Assert(lList.Count = 0);
|
|
finally
|
|
lList.Free;
|
|
end;
|
|
|
|
|
|
//******************************************************
|
|
// Using "Load" methods ********************************
|
|
//******************************************************
|
|
Log('*************************************************');
|
|
Log('** RQL Queries Test (using "Load" style methods)');
|
|
Log('*************************************************');
|
|
Log('>> RQL Query (1) - ' + cRQL1);
|
|
lList := TMVCActiveRecordList.Create;
|
|
try
|
|
TMVCActiveRecord.SelectRQL(TCustomer, cRQL1, 20, lList);
|
|
Log(lList.Count.ToString + ' record/s found');
|
|
for lItem in lList do
|
|
begin
|
|
lCustomer := TCustomer(lItem);
|
|
Log(Format('%5s - %s (%s)', [lCustomer.Code.ValueOrDefault,
|
|
lCustomer.CompanyName.ValueOrDefault, lCustomer.City]));
|
|
end;
|
|
finally
|
|
lList.Free;
|
|
end;
|
|
|
|
Log('>> RQL Query (2) - ' + cRQL2);
|
|
lCustList := TObjectList<TCustomer>.Create;
|
|
try
|
|
lRecCount := TMVCActiveRecord.SelectRQL<TCustomer>(cRQL2, 20, lCustList);
|
|
Log(lRecCount.ToString + ' record/s found');
|
|
for lCustomer in lCustList do
|
|
begin
|
|
Log(Format('%5s - %s (%s)', [lCustomer.Code.ValueOrDefault,
|
|
lCustomer.CompanyName.ValueOrDefault, lCustomer.City]));
|
|
end;
|
|
finally
|
|
lCustList.Free;
|
|
end;
|
|
|
|
Log('**RQL Query (3) - ' + cRQL2);
|
|
lList := TMVCActiveRecordList.Create;
|
|
try
|
|
lRecCount := TMVCActiveRecord.SelectRQL(TCustomer, cRQL2, 20, lList);
|
|
Log(lRecCount.ToString + ' record/s found');
|
|
for lItem in lList do
|
|
begin
|
|
lCustomer := TCustomer(lItem);
|
|
Log(Format('%5s - %s (%s)', [lCustomer.Code.ValueOrDefault,
|
|
lCustomer.CompanyName.ValueOrDefault, lCustomer.City]));
|
|
end;
|
|
finally
|
|
lList.Free;
|
|
end;
|
|
|
|
Log('**RQL Query (4) - <empty> with limit 20');
|
|
lList := TMVCActiveRecordList.Create;
|
|
try
|
|
lRecCount := TMVCActiveRecord.SelectRQL(TCustomer, '', 20, lList);
|
|
Log(lRecCount.ToString + ' record/s found');
|
|
Assert(lRecCount = 20);
|
|
Assert(lList.Count = lRecCount);
|
|
finally
|
|
lList.Free;
|
|
end;
|
|
|
|
Log('**RQL Query (5) - <empty> sort by code with limit 20');
|
|
lList := TMVCActiveRecordList.Create;
|
|
try
|
|
lRecCount := TMVCActiveRecord.SelectRQL(TCustomer, 'sort(+code)', 20, lList);
|
|
Log(lRecCount.ToString + ' record/s found');
|
|
Assert(lRecCount = lList.Count);
|
|
Assert(lList.Count = 20);
|
|
finally
|
|
lList.Free;
|
|
end;
|
|
|
|
Log('**RQL Query (6) - <empty> with limit 10');
|
|
lList := TMVCActiveRecordList.Create;
|
|
try
|
|
lRecCount := TMVCActiveRecord.SelectRQL(TCustomer, '', 10, lList);
|
|
Log(lList.Count.ToString + ' record/s found');
|
|
Assert(lRecCount = lList.Count);
|
|
Assert(lList.Count = 10);
|
|
finally
|
|
lList.Free;
|
|
end;
|
|
|
|
Log('**RQL Query (7) - <empty> with limit 1');
|
|
lList := TMVCActiveRecordList.Create;
|
|
try
|
|
lRecCount := TMVCActiveRecord.SelectRQL(TCustomer, '', 1, lList);
|
|
Log(lList.Count.ToString + ' record/s found');
|
|
Assert(lList.Count = 1);
|
|
Assert(lRecCount = lList.Count);
|
|
finally
|
|
lList.Free;
|
|
end;
|
|
|
|
Log('**RQL Query (8) - <empty> with limit 0');
|
|
lList := TMVCActiveRecordList.Create;
|
|
try
|
|
lRecCount := TMVCActiveRecord.SelectRQL(TCustomer, '', 0, lList);
|
|
Log(lList.Count.ToString + ' record/s found');
|
|
Assert(lList.Count = 0);
|
|
Assert(lRecCount = lList.Count);
|
|
finally
|
|
lList.Free;
|
|
end;
|
|
|
|
|
|
|
|
end;
|
|
|
|
procedure TMainForm.btnSelectClick(Sender: TObject);
|
|
var
|
|
lCustomers: TObjectList<TCustomer>;
|
|
lCustomer: TCustomer;
|
|
lDS: TDataSet;
|
|
lID: NullableInt64;
|
|
begin
|
|
Log('** Query SQL');
|
|
// Bypassing the RQL parser you can use DBMS-specific features or just joining your tables.
|
|
// This is just a sample, you can do the "select" also using the RQL engine
|
|
if ActiveRecordConnectionsRegistry.GetCurrentBackend = 'firebird' then
|
|
lCustomers := TMVCActiveRecord.Select<TCustomer>
|
|
('SELECT * FROM customers WHERE description CONTAINING ?', ['google'])
|
|
else if ActiveRecordConnectionsRegistry.GetCurrentBackend = 'mysql' then
|
|
lCustomers := TMVCActiveRecord.Select<TCustomer>
|
|
('SELECT * FROM customers WHERE description LIKE ''%google%''', [])
|
|
else if ActiveRecordConnectionsRegistry.GetCurrentBackend = 'postgresql' then
|
|
lCustomers := TMVCActiveRecord.Select<TCustomer>
|
|
('SELECT * FROM customers WHERE description ILIKE ''%google%''', [])
|
|
else if ActiveRecordConnectionsRegistry.GetCurrentBackend = 'sqlite' then
|
|
lCustomers := TMVCActiveRecord.Select<TCustomer>
|
|
('SELECT * FROM customers WHERE description LIKE ''%google%''', [])
|
|
else if ActiveRecordConnectionsRegistry.GetCurrentBackend = 'interbase' then
|
|
lCustomers := TMVCActiveRecord.Select<TCustomer>
|
|
('SELECT * FROM customers WHERE description LIKE ''%google%''', [])
|
|
else if ActiveRecordConnectionsRegistry.GetCurrentBackend = 'mssql' then
|
|
lCustomers := TMVCActiveRecord.Select<TCustomer>
|
|
('SELECT * FROM customers WHERE description LIKE ''%google%''', [])
|
|
else
|
|
raise Exception.Create('Unsupported backend: ' +
|
|
ActiveRecordConnectionsRegistry.GetCurrentBackend);
|
|
|
|
try
|
|
for lCustomer in lCustomers do
|
|
begin
|
|
Log(Format('%4d - %8.5s - %s', [lCustomer.ID.ValueOrDefault, lCustomer.Code.ValueOrDefault,
|
|
lCustomer.CompanyName.ValueOrDefault]));
|
|
end;
|
|
finally
|
|
lCustomers.Free;
|
|
end;
|
|
|
|
LoadCustomers;
|
|
|
|
Log('** Query SQL returning DataSet');
|
|
lDS := TMVCActiveRecord.SelectDataSet('SELECT * FROM customers', [], True);
|
|
try
|
|
while not lDS.Eof do
|
|
begin
|
|
Log(Format('%8.5s - %s', [lDS.FieldByName('code').AsString, lDS.FieldByName('description')
|
|
.AsString]));
|
|
lDS.Next;
|
|
end;
|
|
finally
|
|
lDS.Free;
|
|
end;
|
|
|
|
lDS := TMVCActiveRecord.SelectDataSet
|
|
('SELECT * FROM orders o join customers c on c.id = o.id_customer where o.order_date >= ?',
|
|
[Date - 5000], [ftDate]);
|
|
try
|
|
while not lDS.Eof do
|
|
begin
|
|
Log(Format('OrderDate: %12s - Customer: %s',
|
|
[datetostr(lDS.FieldByName('order_date').AsDateTime), lDS.FieldByName('description')
|
|
.AsString]));
|
|
lDS.Next;
|
|
end;
|
|
finally
|
|
lDS.Free;
|
|
end;
|
|
|
|
lDS := TMVCActiveRecord.SelectDataSet
|
|
('SELECT * FROM orders o left join customers c on c.id = o.id_customer where o.order_date >= ? and c.id > ?',
|
|
[Date - 5000, 1], [ftDate]);
|
|
try
|
|
while not lDS.Eof do
|
|
begin
|
|
Log(Format('OrderDate: %12s - Customer: %s',
|
|
[datetostr(lDS.FieldByName('order_date').AsDateTime), lDS.FieldByName('description')
|
|
.AsString]));
|
|
lDS.Next;
|
|
end;
|
|
finally
|
|
lDS.Free;
|
|
end;
|
|
|
|
Log('** GetFirstByWhere');
|
|
lCustomer := TMVCActiveRecord.GetFirstByWhere<TCustomer>('id > ?', [1]);
|
|
try
|
|
Log(Format('%8.5s - %s', [lCustomer.Code.ValueOrDefault,
|
|
lCustomer.CompanyName.ValueOrDefault]));
|
|
lID := lCustomer.ID;
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
lCustomer := TMVCActiveRecord.GetFirstByWhere<TCustomer>('id > ?', [1], [ftInteger]);
|
|
try
|
|
Log(Format('%8.5s - %s', [lCustomer.Code.ValueOrDefault,
|
|
lCustomer.CompanyName.ValueOrDefault]));
|
|
lID := lCustomer.ID;
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
Log('** GetOneByWhere');
|
|
lCustomer := TMVCActiveRecord.GetOneByWhere<TCustomer>('id = ?', [lID.Value]);
|
|
try
|
|
Log(Format('%8.5s - %s', [lCustomer.Code.ValueOrDefault,
|
|
lCustomer.CompanyName.ValueOrDefault]));
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
lCustomer := TMVCActiveRecord.GetOneByWhere<TCustomer>('id = ?', [lID.Value], [ftInteger]);
|
|
try
|
|
Log(Format('%8.5s - %s', [lCustomer.Code.ValueOrDefault,
|
|
lCustomer.CompanyName.ValueOrDefault]));
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
end;
|
|
|
|
procedure TMainForm.btnSpeedClick(Sender: TObject);
|
|
var
|
|
I: Integer;
|
|
lCustomers: TArray<TCustomer>;
|
|
lSW: TStopWatch;
|
|
lElapsedMS: UInt32;
|
|
const
|
|
INSTANCES_COUNT = 2000000;
|
|
begin
|
|
TMVCActiveRecord.DeleteAll(TCustomer);
|
|
SetLength(lCustomers, INSTANCES_COUNT);
|
|
lSW := TStopwatch.StartNew;
|
|
for I := 0 to INSTANCES_COUNT - 1 do
|
|
begin
|
|
lCustomers[I] := TCustomer.Create;
|
|
end;
|
|
lElapsedMS := lSW.ElapsedMilliseconds;
|
|
Log(Format('Created %s TCustomer instances in %d ms',
|
|
[FormatFloat('###,###,###', INSTANCES_COUNT), lElapsedMS]));
|
|
for I := 0 to INSTANCES_COUNT - 1 do
|
|
begin
|
|
lCustomers[I].Free;
|
|
end;
|
|
end;
|
|
|
|
procedure TMainForm.btnTableFilterClick(Sender: TObject);
|
|
var
|
|
i: Integer;
|
|
lIDOfABadCustomer: Int64;
|
|
lIDOfAGoodCustomer: Int64;
|
|
lHowMany: Int64;
|
|
lCust: TMVCActiveRecord;
|
|
Customer: TCustomer;
|
|
lCustomer: TCustomer;
|
|
lCustomer1: TCustomer;
|
|
lNotAGoodCustomer: TCustomer;
|
|
lThisShouldBeNil: TCustomer;
|
|
lAGoodCustomer: TCustomer;
|
|
lThisShouldNotBeNil: TCustomer;
|
|
lGoodCustomers: TObjectList<TGoodCustomer>;
|
|
lGoodCustomers2: TMVCActiveRecordList;
|
|
begin
|
|
Log('**Table Filtering');
|
|
Log('Deleting only best customers...');
|
|
lIDOfABadCustomer := -1;
|
|
lIDOfAGoodCustomer := -1;
|
|
TMVCActiveRecord.DeleteAll(TGoodCustomer);
|
|
Log('Inserting some customers');
|
|
for i := 1 to 5 do
|
|
begin
|
|
Customer := TCustomer.Create();
|
|
try
|
|
Customer.Code := I.ToString;
|
|
Customer.Rating := I;
|
|
Customer.Store;
|
|
if i = 1 then
|
|
begin
|
|
lIDOfABadCustomer := Customer.ID.Value;
|
|
end;
|
|
if i = 5 then
|
|
begin
|
|
lIDOfAGoodCustomer := Customer.ID.Value;
|
|
end;
|
|
finally
|
|
Customer.Free;
|
|
end;
|
|
end;
|
|
|
|
Log('Retrieving only best customers...');
|
|
lGoodCustomers := TMVCActiveRecord.SelectRQL<TGoodCustomer>('sort(+rating)',10);
|
|
try
|
|
Assert(lGoodCustomers.Count = 2); { only rating >= 4}
|
|
for lCust in lGoodCustomers do
|
|
begin
|
|
Log(lCust.ToString);
|
|
end;
|
|
finally
|
|
lGoodCustomers.Free;
|
|
end;
|
|
|
|
Log('How many "best customers" we have?');
|
|
lHowMany := TMVCActiveRecord.Count<TGoodCustomer>;
|
|
Log(Format('We have %d best customers', [lHowMany]));
|
|
|
|
Log('How many "best customers" with rating = 5 we have?');
|
|
lHowMany := TMVCActiveRecord.Count<TGoodCustomer>('eq(rating,5)');
|
|
Log(Format('We have %d best customers with rating = 5', [lHowMany]));
|
|
|
|
Log('Retrieving only best customers...');
|
|
lGoodCustomers2 := TMVCActiveRecord.SelectRQL(TGoodCustomer, '', -1);
|
|
try
|
|
Assert(lGoodCustomers2.Count = 2); { only rating >= 4}
|
|
for lCust in lGoodCustomers2 do
|
|
begin
|
|
Log(lCust.ToString);
|
|
end;
|
|
finally
|
|
lGoodCustomers2.Free;
|
|
end;
|
|
|
|
Log('Retrieving only best customers ordered by company name...');
|
|
lGoodCustomers := TMVCActiveRecord.SelectRQL<TGoodCustomer>('sort(+CompanyName)',10);
|
|
try
|
|
Assert(lGoodCustomers.Count = 2); { only rating >= 4}
|
|
for lCust in lGoodCustomers do
|
|
begin
|
|
Log(lCust.ToString);
|
|
end;
|
|
finally
|
|
lGoodCustomers.Free;
|
|
end;
|
|
|
|
|
|
Log('Retrieving only worst customers...');
|
|
|
|
lNotAGoodCustomer := TMVCActiveRecord.SelectOneByRQL<TCustomer>('eq(rating,1)', True);
|
|
try
|
|
lThisShouldBeNil := TMVCActiveRecord.GetByPK<TGoodCustomer>(lNotAGoodCustomer.ID, False);
|
|
Assert(lThisShouldBeNil = nil);
|
|
finally
|
|
lNotAGoodCustomer.Free;
|
|
end;
|
|
|
|
lAGoodCustomer := TMVCActiveRecord.SelectOneByRQL<TCustomer>('eq(rating,5)', True);
|
|
try
|
|
lThisShouldNotBeNil := TMVCActiveRecord.GetByPK<TGoodCustomer>(lAGoodCustomer.ID, False);
|
|
try
|
|
Assert(lThisShouldNotBeNil <> nil);
|
|
Log(lThisShouldNotBeNil.ToString);
|
|
finally
|
|
lThisShouldNotBeNil.Free;
|
|
end;
|
|
finally
|
|
lAGoodCustomer.Free;
|
|
end;
|
|
|
|
Log('Promoting a customer...');
|
|
lCustomer := TBadCustomer.Create;
|
|
try
|
|
lCustomer.LoadByPK(lIDOfABadCustomer);
|
|
lCustomer.Rating := 5;
|
|
lCustomer.Store;
|
|
Assert(not lCustomer.LoadByPK(lIDOfABadCustomer)); {this customer is not "bad" anymore}
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
Log('Demote a customer...');
|
|
lCustomer1 := TGoodCustomer.Create;
|
|
try
|
|
lCustomer1.LoadByPK(lIDOfAGoodCustomer);
|
|
lCustomer1.Rating := 1;
|
|
lCustomer1.Store;
|
|
Assert(not lCustomer1.LoadByPK(lIDOfAGoodCustomer)); {this customer is not "good" anymore}
|
|
finally
|
|
lCustomer1.Free;
|
|
end;
|
|
end;
|
|
|
|
procedure TMainForm.btnTransactionClick(Sender: TObject);
|
|
begin
|
|
Log('# TransactionContext');
|
|
|
|
// Test 0
|
|
ExecutedInTransaction;
|
|
|
|
// Test 1
|
|
// try
|
|
// begin var Ctx := TMVCActiveRecord.UseTransactionContext;
|
|
// TMVCActiveRecord.GetByPK<TCustomer>(-1); // will raise EMVCActiveRecordNotFound
|
|
// end;
|
|
// except
|
|
// on E: Exception do
|
|
// begin
|
|
// Log(Format('#1 - TransactionContext caught %s (automatic rollback)', [E.ClassName]));
|
|
// end;
|
|
// end;
|
|
|
|
|
|
// Test 2
|
|
// try
|
|
// begin var Ctx := TMVCActiveRecord.UseTransactionContext;
|
|
// var S := Ctx; // will raise EMVCActiveRecordTransactionContext
|
|
// end;
|
|
// except
|
|
// on E: Exception do
|
|
// begin
|
|
// Log(Format('#2 - TransactionContext caught %s (automatic rollback)', [E.ClassName]));
|
|
// end;
|
|
// end;
|
|
|
|
|
|
// Test 3
|
|
begin var Ctx := TMVCActiveRecord.UseTransactionContext;
|
|
|
|
var lCustID: NullableInt64 := nil;
|
|
|
|
var lCustomer := TCustomer.Create;
|
|
try
|
|
lCustomer.CompanyName := 'Transaction Inc.';
|
|
lCustomer.LastContact := Now();
|
|
lCustomer.Store;
|
|
var lOrder := TOrder.Create;
|
|
try
|
|
lOrder.CustomerID := lCustomer.ID; // << link
|
|
lOrder.OrderDate := Date();
|
|
lOrder.Store;
|
|
|
|
var lOrderItem := TOrderDetail.Create;
|
|
try
|
|
lOrderItem.OrderID := lOrder.ID; // << link
|
|
var lAllArticles := TMVCActiveRecord.All<TArticle>;
|
|
try
|
|
lOrderItem.ArticleID := lAllArticles.First.ID.Value; // << link
|
|
finally
|
|
lAllArticles.Free;
|
|
end;
|
|
lOrderItem.Price := 10;
|
|
lOrderItem.Quantity := 2;
|
|
lOrderItem.Store;
|
|
finally
|
|
lOrderItem.Free;
|
|
end;
|
|
finally
|
|
lOrder.Free;
|
|
end;
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
Log('#3 - TransactionContext automatically committed changes (because no exceptions have been raised within the TransactionContext)');
|
|
end;
|
|
|
|
end;
|
|
|
|
procedure TMainForm.btnReadOnlyFieldsClick(Sender: TObject);
|
|
var
|
|
lCustomer: TCustomerWithReadOnlyFields;
|
|
lID: Integer;
|
|
begin
|
|
Log('** CRUD test with read-only fields');
|
|
lCustomer := TCustomerWithReadOnlyFields.Create;
|
|
try
|
|
{
|
|
'Code' will not be persisted on table because defined as 'foReadOnly'
|
|
}
|
|
lCustomer.Code := '1234';
|
|
lCustomer.CompanyName := 'Google Inc.';
|
|
lCustomer.City := 'Montain View, CA';
|
|
lCustomer.Insert;
|
|
lID := lCustomer.ID;
|
|
Log('Just inserted Customer ' + lID.ToString + ' with a R/O field');
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
//let's check that code is empty
|
|
lCustomer := TMVCActiveRecord.GetByPK<TCustomerWithReadOnlyFields>(lID);
|
|
try
|
|
Assert(lCustomer.Code.IsEmpty);
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
//if underlying field is not null, it is loaded as usual
|
|
TMVCActiveRecord.CurrentConnection.ExecSQL('update customers set code = ''XYZ'' where id = ?', [lID]);
|
|
lCustomer := TMVCActiveRecord.GetByPK<TCustomerWithReadOnlyFields>(lID);
|
|
try
|
|
Assert('XYZ' = lCustomer.Code);
|
|
lCustomer.CompanyName := lCustomer.CompanyName + ' changed!';
|
|
lCustomer.Code := 'this code will not be saved';
|
|
lCustomer.Update; //do not save field "code"
|
|
Log('Just updated Customer ' + lID.ToString);
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
//but being foReadOnly is not updated
|
|
lCustomer := TMVCActiveRecord.GetByPK<TCustomerWithReadOnlyFields>(lID);
|
|
try
|
|
Assert('XYZ' = lCustomer.Code);
|
|
lCustomer.Delete;
|
|
Log('Just deleted Customer ' + lID.ToString + ' with a R/O field');
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
end;
|
|
|
|
procedure TMainForm.btnRefreshClick(Sender: TObject);
|
|
var
|
|
lCustomer: TCustomer;
|
|
lID: Integer;
|
|
begin
|
|
Log('** Refresh test');
|
|
lCustomer := TCustomer.Create;
|
|
try
|
|
Log('Entity ' + TCustomer.ClassName + ' is mapped to table ' + lCustomer.TableName);
|
|
lCustomer.CompanyName := 'Google Inc.';
|
|
lCustomer.City := 'Montain View, CA';
|
|
lCustomer.Note := 'Μῆνιν ἄειδε θεὰ Πηληϊάδεω Ἀχιλῆος οὐλομένην 😁';
|
|
lCustomer.Insert;
|
|
Assert('Montain View, CA' = lCustomer.City);
|
|
Assert('Μῆνιν ἄειδε θεὰ Πηληϊάδεω Ἀχιλῆος οὐλομένην 😁' = lCustomer.Note);
|
|
lCustomer.City := '';
|
|
lCustomer.Note := '';
|
|
Log('Refreshing the customer');
|
|
lCustomer.Refresh;
|
|
Assert('Montain View, CA' = lCustomer.City);
|
|
Assert('Μῆνιν ἄειδε θεὰ Πηληϊάδεω Ἀχιλῆος οὐλομένην 😁' = lCustomer.Note);
|
|
lID := lCustomer.ID;
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
lCustomer := TCustomer.Create;
|
|
try
|
|
Log('Loading customer using Refresh');
|
|
lCustomer.ID := lID;
|
|
lCustomer.Refresh;
|
|
Assert('Montain View, CA' = lCustomer.City);
|
|
Assert('Μῆνιν ἄειδε θεὰ Πηληϊάδεω Ἀχιλῆος οὐλομένην 😁' = lCustomer.Note);
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
end;
|
|
|
|
procedure TMainForm.btnValidationClick(Sender: TObject);
|
|
var
|
|
lCustomer: TCustomerWithLogic;
|
|
lID: Integer;
|
|
begin
|
|
Log('** Validation test (some exceptions will be raised)');
|
|
|
|
lCustomer := TCustomerWithLogic.Create;
|
|
try
|
|
lCustomer.Code := '1234';
|
|
lCustomer.CompanyName := 'bit Time Professionals';
|
|
lCustomer.City := 'Rome';
|
|
lCustomer.Insert;
|
|
lID := lCustomer.ID;
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
ShowMessage('Try to update a customer with empty "CODE" (an exception will be raised)');
|
|
|
|
lCustomer := TMVCActiveRecord.GetByPK<TCustomerWithLogic>(lID);
|
|
try
|
|
Log(lCustomer.CompanyName + ' => IsLocatedInRome: ' +
|
|
BoolToStr(lCustomer.IsLocatedInRome, True));
|
|
lCustomer.Code := '';
|
|
lCustomer.Update; // raise exception
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
end;
|
|
|
|
procedure TMainForm.btnVirtualEntitiesClick(Sender: TObject);
|
|
begin
|
|
var lCustStats := TMVCActiveRecord.SelectByNamedQuery<TCustomerStats>('CustomersInTheSameCity', [], []);
|
|
try
|
|
for var lCustomer in lCustStats do
|
|
begin
|
|
Log(Format('%4d - %8.5s - %s - (%d other customers in the same city)', [
|
|
lCustomer.ID.ValueOrDefault,
|
|
lCustomer.Code.ValueOrDefault,
|
|
lCustomer.CompanyName.ValueOrDefault,
|
|
lCustomer.CustomersInTheSameCity
|
|
]));
|
|
end;
|
|
finally
|
|
lCustStats.Free;
|
|
end;
|
|
end;
|
|
|
|
procedure TMainForm.btnWithSpacesClick(Sender: TObject);
|
|
var
|
|
lCustomer: TCustomerWithSpaces;
|
|
lID: Integer;
|
|
I: Integer;
|
|
cRQL1: string;
|
|
lList: TMVCActiveRecordList;
|
|
lItem: TMVCActiveRecord;
|
|
begin
|
|
Log('** Simple CRUD (table and fields with spaces) test');
|
|
Log('There are ' + TMVCActiveRecord.Count<TCustomerWithSpaces>().ToString + ' row/s for entity ' +
|
|
TCustomerWithSpaces.ClassName);
|
|
TMVCActiveRecord.DeleteAll(TCustomerWithSpaces);
|
|
Log('Deleting all entities ' + TCustomerWithSpaces.ClassName);
|
|
for I := 1 to 100 do
|
|
begin
|
|
lCustomer := TCustomerWithSpaces.Create;
|
|
try
|
|
lID := I;
|
|
lCustomer.ID := lID;
|
|
// just for test!!
|
|
case I mod 3 of
|
|
0:
|
|
lCustomer.CompanyName := 'Google Inc.';
|
|
1:
|
|
lCustomer.CompanyName := 'bit Time Professionals';
|
|
2:
|
|
lCustomer.CompanyName := 'Walt Disney Corp.';
|
|
end;
|
|
lCustomer.City := 'Montain View, CA';
|
|
lCustomer.Note := 'Hello there!';
|
|
lCustomer.Insert;
|
|
Log('Just inserted Customer ' + lID.ToString);
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
end;
|
|
|
|
Log('Now there are ' + TMVCActiveRecord.Count<TCustomerWithSpaces>().ToString +
|
|
' row/s for entity ' + TCustomerWithSpaces.ClassName);
|
|
Log('Deleting using RQL...');
|
|
TMVCActiveRecord.DeleteRQL(TCustomerWithSpaces, 'lt(id,80)');
|
|
Log('Now there are ' + TMVCActiveRecord.Count<TCustomerWithSpaces>().ToString +
|
|
' row/s for entity ' + TCustomerWithSpaces.ClassName);
|
|
|
|
// gets the last inserted customer
|
|
lCustomer := TMVCActiveRecord.GetByPK<TCustomerWithSpaces>(lID);
|
|
try
|
|
Assert(not lCustomer.Code.HasValue);
|
|
lCustomer.Code.Value := '5678';
|
|
lCustomer.Note := lCustomer.Note + sLineBreak + 'Code changed to 5678';
|
|
lCustomer.Update;
|
|
Log('Just updated Customer ' + lID.ToString);
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
lCustomer := TCustomerWithSpaces.Create;
|
|
try
|
|
lCustomer.LoadByPK(lID);
|
|
lCustomer.Code.Value := '9012';
|
|
lCustomer.Update;
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
lCustomer := TMVCActiveRecord.GetByPK<TCustomerWithSpaces>(lID);
|
|
try
|
|
lCustomer.Delete;
|
|
Log('Just deleted Customer ' + lID.ToString);
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
|
|
cRQL1 := 'eq(CompanyName,"Google Inc.")';
|
|
Log('>> RQL Query (customers with spaces) - ' + cRQL1);
|
|
lList := TMVCActiveRecord.SelectRQL(TCustomerWithSpaces, cRQL1, 20);
|
|
try
|
|
Log(lList.Count.ToString + ' record/s found');
|
|
for lItem in lList do
|
|
begin
|
|
lCustomer := TCustomerWithSpaces(lItem);
|
|
Log(Format('%5s - %s (%s)', [lCustomer.Code.ValueOrDefault,
|
|
lCustomer.CompanyName.ValueOrDefault, lCustomer.City]));
|
|
end;
|
|
finally
|
|
lList.Free;
|
|
end;
|
|
end;
|
|
|
|
procedure TMainForm.ExecutedInTransaction;
|
|
begin
|
|
var tx := TMVCActiveRecord.UseTransactionContext;
|
|
var lCustomer := TCustomer.Create;
|
|
try
|
|
lCustomer.CompanyName := 'Transaction Inc.';
|
|
lCustomer.LastContact := Now();
|
|
lCustomer.Insert;
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
Log('#4 - TransactionContext automatically committed changes (because no exceptions have been raised within the TransactionContext)');
|
|
end;
|
|
|
|
procedure TMainForm.btnObjectVersionClick(Sender: TObject);
|
|
begin
|
|
var lID: NullableInt64;
|
|
var lCust := TCustomerWithVersion.Create();
|
|
try
|
|
Log('Entity ' + TCustomerWithVersion.ClassName + ' is mapped to table ' + lCust.TableName);
|
|
lCust.CompanyName := 'Google Inc.';
|
|
lCust.City := 'Montain View, CA';
|
|
lCust.Note := 'Μῆνιν ἄειδε θεὰ Πηληϊάδεω Ἀχιλῆος οὐλομένην 😁';
|
|
lCust.Insert;
|
|
lID := lCust.ID;
|
|
Log('Just inserted CustomerWithVersion ' + lID.ValueOrDefault.ToString);
|
|
lCust.Store;
|
|
finally
|
|
lCust.Free;
|
|
end;
|
|
|
|
lCust := TMVCActiveRecord.GetByPK<TCustomerWithVersion>(lID);
|
|
try
|
|
lCust.CompanyName := 'Alphabet Inc.';
|
|
lCust.Store;
|
|
finally
|
|
lCust.Free;
|
|
end;
|
|
|
|
// Let's load 2 instances
|
|
var lCust1 := TMVCActiveRecord.GetByPK<TCustomerWithVersion>(lID);
|
|
try
|
|
var lCust2 := TMVCActiveRecord.GetByPK<TCustomerWithVersion>(lID);
|
|
try
|
|
//User1
|
|
lCust1.CompanyName := 'MyCompany';
|
|
lCust1.Store; //save the first version
|
|
//User1 - end
|
|
|
|
//User2
|
|
lCust2.Rating := 4;
|
|
lCust2.Store; //save another version starting from an older version - exception
|
|
//User2 - end
|
|
finally
|
|
lCust2.Free;
|
|
end;
|
|
finally
|
|
lCust1.Free;
|
|
end;
|
|
end;
|
|
|
|
procedure TMainForm.btnOOPClick(Sender: TObject);
|
|
begin
|
|
Log('** OOP with ActiveRecord (person, employee, manager)');
|
|
TMVCActiveRecord.DeleteAll(TPerson);
|
|
|
|
var lPerson := TPerson.Create;
|
|
try
|
|
lPerson.FirstName := 'Reed';
|
|
lPerson.LastName := 'Richards';
|
|
lPerson.Dob := EncodeDate(1985,11,4);
|
|
lPerson.IsMale := True;
|
|
lPerson.Store;
|
|
finally
|
|
lPerson.Free;
|
|
end;
|
|
|
|
var lEmployee := TEmployee.Create;
|
|
try
|
|
lEmployee.FirstName := 'Peter';
|
|
lEmployee.LastName := 'Parker';
|
|
lEmployee.Dob := EncodeDate(1985,11,4);
|
|
lEmployee.IsMale := True;
|
|
lEmployee.Salary := 2100;
|
|
lEmployee.Store;
|
|
finally
|
|
lEmployee.Free;
|
|
end;
|
|
|
|
lEmployee := TEmployee.Create;
|
|
try
|
|
lEmployee.FirstName := 'Sue';
|
|
lEmployee.LastName := 'Storm';
|
|
lEmployee.Dob := EncodeDate(1975,10,14);
|
|
lEmployee.IsMale := False;
|
|
lEmployee.Salary := 2200;
|
|
lEmployee.Store;
|
|
finally
|
|
lEmployee.Free;
|
|
end;
|
|
|
|
var lManager := TManager.Create;
|
|
try
|
|
lManager.FirstName := 'Bruce';
|
|
lManager.LastName := 'Banner';
|
|
lManager.Dob := EncodeDate(1975,11,4);
|
|
lManager.IsMale := True;
|
|
lManager.Salary := 2800;
|
|
lManager.AnnualBonus := 5000;
|
|
lManager.Store;
|
|
finally
|
|
lManager.Free;
|
|
end;
|
|
|
|
var lPeople := TMVCActiveRecord.All<TPerson>;
|
|
try
|
|
Assert(lPeople.Count = 4);
|
|
finally
|
|
lPeople.Free;
|
|
end;
|
|
|
|
var lEmployees := TMVCActiveRecord.All<TEmployee>;
|
|
try
|
|
Assert(lEmployees.Count = 3);
|
|
finally
|
|
lEmployees.Free;
|
|
end;
|
|
end;
|
|
|
|
procedure TMainForm.FormDestroy(Sender: TObject);
|
|
begin
|
|
ActiveRecordConnectionsRegistry.RemoveDefaultConnection();
|
|
end;
|
|
|
|
procedure TMainForm.FormShow(Sender: TObject);
|
|
var
|
|
lEngine: TRDBMSEngine;
|
|
begin
|
|
if not TEngineChoiceForm.Execute(lEngine) then
|
|
begin
|
|
Close;
|
|
Exit;
|
|
end;
|
|
case lEngine of
|
|
TRDBMSEngine.PostgreSQL:
|
|
begin
|
|
FDConnectionConfigU.CreatePostgresqlPrivateConnDef(True);
|
|
end;
|
|
TRDBMSEngine.Firebird:
|
|
begin
|
|
FDConnectionConfigU.CreateFirebirdPrivateConnDef(True);
|
|
end;
|
|
TRDBMSEngine.Interbase:
|
|
begin
|
|
FDConnectionConfigU.CreateInterbasePrivateConnDef(True);
|
|
end;
|
|
TRDBMSEngine.MySQL:
|
|
begin
|
|
FDConnectionConfigU.CreateMySQLPrivateConnDef(True);
|
|
end;
|
|
TRDBMSEngine.MariaDB:
|
|
begin
|
|
FDConnectionConfigU.CreateMySQLPrivateConnDef(True);
|
|
end;
|
|
TRDBMSEngine.SQLite:
|
|
begin
|
|
FDConnectionConfigU.CreateSqlitePrivateConnDef(True);
|
|
end;
|
|
TRDBMSEngine.MSSQLServer:
|
|
begin
|
|
FDConnectionConfigU.CreateMSSQLServerPrivateConnDef(True);
|
|
end;
|
|
else
|
|
raise Exception.Create('Unknown RDBMS');
|
|
end;
|
|
|
|
ActiveRecordConnectionsRegistry.AddDefaultConnection(FDConnectionConfigU.CON_DEF_NAME);
|
|
Caption := Caption + ' (Curr Backend: ' + ActiveRecordConnectionsRegistry.GetCurrentBackend + ')';
|
|
{$IFDEF USE_SEQUENCES}
|
|
Caption := Caption + ' USE_SEQUENCES';
|
|
{$ELSE}
|
|
Caption := Caption + ' WITHOUT SEQUENCES';
|
|
{$ENDIF}
|
|
btnWithSpaces.Enabled := (ActiveRecordConnectionsRegistry.GetCurrentBackend = 'postgresql') or
|
|
(ActiveRecordConnectionsRegistry.GetCurrentBackend = 'firebird') or
|
|
(ActiveRecordConnectionsRegistry.GetCurrentBackend = 'interbase') or
|
|
(ActiveRecordConnectionsRegistry.GetCurrentBackend = 'mysql') or
|
|
(ActiveRecordConnectionsRegistry.GetCurrentBackend = 'mariadb') or
|
|
(ActiveRecordConnectionsRegistry.GetCurrentBackend = 'sqlite');
|
|
|
|
btnJSON_XML_Types.Enabled := ActiveRecordConnectionsRegistry.GetCurrentBackend = 'postgresql';
|
|
end;
|
|
|
|
procedure TMainForm.LoadCustomers(const HowManyCustomers: Integer = 50);
|
|
var
|
|
lCustomer: TCustomer;
|
|
I: Integer;
|
|
begin
|
|
TMVCActiveRecord.DeleteAll(TCustomer);
|
|
for I := 1 to HowManyCustomers do
|
|
begin
|
|
lCustomer := TCustomer.Create;
|
|
try
|
|
lCustomer.CompanyName := Stuff[Random(4)] + ' ' + CompanySuffix[Random(5)];
|
|
lCustomer.Code := Random(100).ToString.PadLeft(5, '0');
|
|
lCustomer.City := Cities[Random(4)];
|
|
lCustomer.Rating := I mod 6;
|
|
lCustomer.Note := Stuff[Random(4)];
|
|
lCustomer.Insert;
|
|
finally
|
|
lCustomer.Free;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure TMainForm.Log(const Value: string);
|
|
begin
|
|
Memo1.Lines.Add(Value);
|
|
Memo1.Update;
|
|
end;
|
|
|
|
|
|
end.
|