# DelphiMVCFramework  
DMVCFramework is a very popular Delphi framework which provides an easy to use, scalable, flexible [RESTful](https://en.wikipedia.org/wiki/Representational_state_transfer), [JSON-RPC](https://en.wikipedia.org/wiki/JSON-RPC) and [ActiveRecord](https://www.martinfowler.com/eaaCatalog/activeRecord.html) framework for Delphi developers. DMVCFramework is the **most popular** Delphi project on GitHub and compiles for Windows (32 and 64bit) and Linux (64bit). DMVCFramework services can be compiled as console application, Windows Service, Linux daemon, Apache module (Windows and Linux) and IIS ISAPI (Windows).
Are you using DMVCFramework? Do you want to say "Thanks"? <ahref="https://www.patreon.com/bePatron?u=72182967"data-patreon-widget-type="become-patron-button">Become a Patron!</a>
* DMVCFramwork is simple to use, has a [lot of examples](https://github.com/danieleteti/delphimvcframework/tree/master/samples), is documented and there are a [lot of tutorials](https://www.youtube.com/results?search_query=delphimvcframework) available.
* DMVCFramework is very well documented and the book [DMVCFramework - the official guide](http://www.danieleteti.it/books/) is available to fastly get a solid knowledge (available as e-book and hardcopy).
* JSON-RPC 2.0 Support with automatic objects remotization (check [sample](https://github.com/danieleteti/delphimvcframework/tree/master/samples/jsonrpc_with_published_objects))
* DMVCFramework' MVCActiveRecord allows an easy and fast database access.
* Stable and solid, used by small/mid/big projects since 2010
* Very fast! (2.x was pretty fast and now, 3.x is 60% faster than the 2.x!)
* There is a sample for each functionality (check the [dmvcframework_(yourversion)_samples.zip](https://github.com/danieleteti/delphimvcframework/releases))
* Server side generated pages using [Mustache for Delphi](https://github.com/synopse/dmustache) or [TemplatePro](https://github.com/danieleteti/templatepro)
* Specific trainings are available (email to `professionals@bittime.it` for a date and a place)
* Push notifications support using [ServerSentEvents](https://github.com/danieleteti/delphimvcframework/tree/master/samples/serversentevents)
* Automatic documentation through `/system/describeserver.info`
* Driven by its huge community (Facebook group https://www.facebook.com/groups/delphimvcframework)
* To get a fast introduction to DMVCFramework read the [slides from ITDevCon conference](docs/ITDevCON%202013%20-%20Introduction%20to%20DelphiMVCFramework.pdf)
## Install the latest stable version
> If you are not involved in development or testing, do not clone the repo! Use the Github release!
The last stable version available [here 📥](https://github.com/danieleteti/delphimvcframework/releases/latest). Just download latest release as a zip file and you are ok. Samples are available as separate zip file downloadable from the same page where you download the release.
## Book: "DelphiMVCFramework - the official guide"
The official guide for DMVCFramework is available. DMVCFramework has a lot functionalities and can really help your business. However many developers don't use it at its full potential. Why don't get more when is easily available? The DMVCFramework lead developer and project coordinator Daniele Teti, wrote the official guide for this great framework.
[Buy your copy](https://leanpub.com/delphimvcframework) and improve your DMVCFramework knowledge now!
"DMVCFramework - the official guide" is available as [e-book](https://leanpub.com/delphimvcframework) and [hardcopy](https://www.lulu.com/en/en/shop/daniele-teti-and-jim-mckeeth/delphimvcframework-the-official-guide/hardcover/product-r26e8e.html), pick what you prefer.
> While a huge work has been done by the author and the reviews to make the book and the examples well written, complete and effective, things can be always improved. For any suggestions, complains or requests there is the official Github book project (https://github.com/danieleteti/dmvcframeworktheofficialguide) where you can fill an issue and get in touch directly with the author.
### Book translations
Given the success of DMVCFramework in the Delphi community, the official DMVCFramework guide has been translated also in the following languages.
- [Brazilian Portuguese](https://leanpub.com/delphimvcframework-br) (Translated by Diego Farisato)
- [Spanish](https://leanpub.com/delphimvcframework-es) (Translated by Josè Davalos)
---
**Please, if you use DMVCFramework "star" this project in GitHub! It cost nothing to you but helps other developers to reference the code.**
### How to partecipate to DMVCFramework development and/or tests
Only if you want to participate to the testing phase (which usually contains brand new features but can sometimes be instable) you can get the development version clonig this repo or downloading the [master repository zip file](https://github.com/danieleteti/delphimvcframework/archive/master.zip).
Take in mind that even if development version is usually very stable, it isn't not ready for production utilization.
While DMVCFramework is born from the head of Daniele Teti from bit Time Professionals, it wouldn't what is now without the support and work of many people all around the world. The following companies sponsored some specific part of DMVCFramework so they wort a special mention.
> "Our wishes are coming true" -- one Delphi programmer after a small dmvcframework demo for an IT department of a very important national research institute
> "I'm still amazed by the DelphiMVCFramework code and documentation. Thank you very much and I am amazed by your quick feedback." -- [Benjamin Yang](https://www.linkedin.com/in/benjamin-yang-4b0609159/) (Director of [SQLGate](https://www.sqlgate.com/))
> "DMVCFramework and the Entity utility are fantastic!" -- Roberto
>"DMVCFramework is a great framework. It's very intuitive, fast, easy to use, actually there is nothing more to ask for." -- Samir
>"Wow! To do that in J2EE it takes 2 days" -- a training participant after a 5 minutes demo.
>"I'm starting with the DMVCFramework and I'm finding it fantastic, congratulations for the project!" -- Rafael
>"I'm looking at DMVCFramework project in it works great - for my use case scenarios is much better than *'Similar commercial product'*." -- Luka
>"It's fantastic! Just define your entities and you are up and running in 5 minutes. Nothing comparable on the market." -- Marco
>"The best framework for creating web servers with Delphi! It is very easy to create Delphi servers and publish APIs and Rest resources.
Congratulations to Daniele Teti and all the staff for the excellent work!" -- Marcos N.
> We started the process of migrating our systems to micro services and are loving the DMVCFramework "DMVCFramework is definitely part of our lives right now". -- E. Costa
> "Thank you for the great framework! We are very happy with this!" -- Andreas
>👉 A deep analisys of what's new in DelphiMVCFramework-3.4.1-sodium is available on [Daniele Teti Blog](https://www.danieleteti.it/post/delphimvcframework-3-4-1-sodium/) 👈
>👉 Deeper analisys of what's new in DelphiMVCFramework-3.4.0-neon is available on [Daniele Teti Blog](http://www.danieleteti.it/post/delphimvcframework-3-4-0-neon/) 👈
- ⚡ Added [HTMX](https://htmx.org/) server side support through unit `samples\htmx\MVCFramework.HTMX.pas` and the relative sample (Thanks to [David Moorhouse](https://github.com/fastbike)). This unit provides class helper for `TMVCWebRequest` and `TMVCWebResponse` classes to easily work with HTMX. If you want to use this unit just download the samples and add it to your project or put `$(DMVCHOME)\samples\htmx` in your library path.
- ⚡ Added "Load Style" methods to `TMVCActiveRecord` (more info https://github.com/danieleteti/delphimvcframework/issues/675)
-`TMVCActiveRecord` support "Factory Style" and "Load Style" methods when loads data from database.
Using "Factory Style" methods (available from the first version) the result list is returned by the loader method (as shown in this piece of code from the `activerecord_showcase` sample).
- In addition to the classic `procedure` based actions, now it's possibile to use functions as actions. The `Result` variable is automatically rendered and, if it is an object, its memory is freed.
`TMVCResponse` can be used with "message based" responses and also with "data based" responses (with single object, with a list of objects or with a dictionary of objects).
- Removed `statuscode`, `reasonstring` and all the field with a default value from exception's JSON rendering. All the high-level rendering methods will emit standard `ReasonString`.
`MVCNamedSQLQuery` allows to define a "named query" which is, well, a SQL query with a name. Then such query can be used by the method `SelectByNamedQuery<T>` or `SelectByNamedQuery`. Moreover in the attribute it is possible to define on which backend engine that query is usable. In this way you can define optimized query for each supported DMBS you need.
- ⚡ Default error responses contains the official "reason string" associated to the HTTP status code (this can be a breaking change for some generic client which doesn't correctly interpret the http status code)
- ⚡ Added static method `HTTP_STATUS.ReasonStringFor(HTTPStatusCode)` wich returns the standard `ReasonString` for a given HTTP status code.
- ⚡ Improved handling of `TMVCErrorResponse` information
- ⚡ mid-air-collision handling now uses SHA1 instead of MD5
- ⚡ Added `MVCFramework.Commons.MVC_HTTP_STATUS_CODES` const array containing all the HTTP status codes with its `ReasonString`.
- ⚡ Support for `TObject` descendants in JSONRPC APIs (not only for JSONObject and JSONArray).
- ⚡ New global configuration variable `MVCSerializeNulls`.
- When MVCSerializeNulls = True (default) empty nullables and nil are serialized as json null.
- When MVCSerializeNulls = False empty nullables and nil are not serialized at all.
- ⚡ Nullable types now have `Equal` method support, the new method `TryHasValue(out Value)` works like `HasValue` but returns the contained value if present. Also there is a better "equality check" strategy.
- ⚡ Unit tests now are always executed for Win32 and Win64 bit (both client and server).
- ⚡ Added `TMVCActiveRecord.Refresh` method
- ⚡ Unit test suites generates one NUnit XML output file for each platform
- ⚡ New built-in profiler (usable with Delphi 10.4+) - to profile a block of code, write the following
```delphi
procedure TMyController.ProfilerSample1;
begin
NotProfiled(); //this line is not profiled
//the following begin..end block will be profiled
//timing will be saved in a "profiler" log
begin var lProf := Profiler.Start(Context.ActionQualifiedName);
All profiler logs are generated with a log level `info`. If measured time is greater than `WarningThreshold` the log level is `warning`.
`WarningThreshold` is expressed in milliseconds and by default is equals to 1000.
- ⚡ New `Context` property named `ActionQualifiedName` which contains the currently executed action in the form `UnitName.ClassName.ActionName`. It is available where the `Context` property is available. Obviously is not available in the `OnBeforeRouting` middleware events.
- ⚡ Added ObjectPool and IntfObjectPool (and related unit tests). Thanks to our sponsor [Vivaticket S.p.A.](https://corporate.vivaticket.com)
- ⚡ Method `procedure Render(const AErrorCode: Integer; const AErrorMessage: string = '' ... ` has been renamed to `RenderStatusMessage` with a better parameter names.
- ⚡ `IMVCJSONRPCExecutor` supports async call. Thanks to our sponsor [Orion Law](https://orionlaw.com/). Check the new Async sample in `samples\jsonrpc_with_published_objects\`.
- ⚡ Removed `foTransient` if `TMVCActiveRecord``FieldOptions`. It became obsolete after introduction of `foReadOnly` and `foWriteOnly`.
- ⚡ Improved `TMVCActiveRecordMiddleware`. Now it can handle multiple connections for the same request. Also, you can completely omit the 'default' connection and just specify wich connection you want to use before starting to create your `TMVCActiveRecord` inherited entities.
### Bug Fix in 3.2.3-radium
- Fixed a rendering problem in swagger interface format in case of specific JSON structure
- Fix [issue 594](https://github.com/danieleteti/delphimvcframework/issues/594) (Thanks to [biware-repo](https://github.com/biware-repo))
- ⚡New `TMVCRESTClient` implementation based on *Net components, the previous one was based on INDY Components (thanks to [João Antônio Duarte](https://github.com/joaoduarte19)).
- ⚡New! `MVCJSONRPCAllowGET` attribute allows a remote JSON-RPC published object, or a specific method, to be called using GET HTTP Verb as well as POST HTTP Verb. POST is always available, GET is available only if explicitly allowed. `IMVCJSONRPCExecutor` allows to specify which HTTP Verb to use when call the server JSON-RPC methods. The default verb can be injected in the constructor and each `ExecuteRequest`/`ExecuteNotification` allows to override od adhere to the instance default.
- ⚡New! eLua server side view support added! The View engine requires Lua's dlls so it is not included in the main package but in a sampl project. Check `serversideviews_lua` sample.
- ✅ Improved! Under some heavy load circumnstances the logger queue can get full. Now `TThreadSafeQueue` class uses a cubic function instead of a linear one to wait in case of very high concurrency. This allows a better resiliency in case of high load.
- ⚡New `TMVCLRUCache` implementation. Very efficient implementation of LRU cache borrowed directly from [DMSContainer](http://dmscontainer.bittimeprofessionals.com/)
- ✅ Improved! The unit tests fully test PostgreSQL, FirebirdSQL and SQLite while testing MVCActiveRecord framework. The other engines are tested using `activerecord_showcase` sample project.
- ✅ Improved! MVCActiveRecord does a better job to handle TDate/TTime/TDateTime types for SQLite (it is automatic because SQLite doesn't support date/time types).
- ✅ Improved Nullable Types. Now it's possible to assign `nil` to a nullable type and to check its state using the new property `IsNull` which is the negation of the already available property `HasValue`.
- ✅ Improved! Now `TMVCStaticFileMiddleware` is able to manage high-level criteria to show/hide/mask specific files in the document web root. Check [Issue 548](https://github.com/danieleteti/delphimvcframework/issues/548) and the updated sample `samples\middleware_staticfiles\` for more info.
- ⚡New! Mechanism to customize the JWT claims setup using the client request as suggested in [issue495](https://github.com/danieleteti/delphimvcframework/issues/495)
- ⚡New! Added `TMVCActiveRecord.Merge<T>(CurrentListOfT, ChangesOfT)` to allow merge between two lists of `TMVCActiveRecord` descendants using `UnitOfWork` design pattern. Check the button "Merge" in demo "activerecord_showcase".
- ✅ Dramatically improved all "JSON-To-DataSet" operations (1 order of magnitude c.a.). Thanks to [MPannier](https://github.com/MPannier) and [David Moorhouse](https://github.com/fastbike) for their detailed analysis - More info [here](https://github.com/danieleteti/delphimvcframework/issues/553).
- ✅ Improved! After a big refactoring (*"I love to delete code" -- cit. Daniele Teti*), support a new SQLGenerator is just 2 (two) methods away! Just as example, this is the current version of `TMVCSQLGeneratorPostgreSQL`
- ⚡ New! Added new default parameter to `TMVCActiveRecord.RemoveDefaultConnection` and `TMVCActiveRecord.RemoveConnection` to avoid exceptions in case of not initialized connection.
- ⚡ New! Added the new `MVCOwned` attribute which allows to auto-create nested objects in the deserialization phase. This will not change the current behavior, you ned to explocitly define a property (or a field) as `MVCOwned` to allows the serialization to create or destroy object for you.
- ✅ Improved `MVCAREntitiesGenerator` project - now it can better handle border cases, field names which collide with Delphi keywords and a big number of tables.
- ✅ Improved error handling for JSON-RPC APIs (Thanks to [David Moorhouse](https://github.com/fastbike)). More info [here](https://github.com/danieleteti/delphimvcframework/issues/538).
- ⚡ New! Added `ActiveRecordConnectionRegistry.AddDefaultConnection(const aConnetionDefName: String)`. The connection definition **must** be known by FireDAC. This method simplifies the most common scenario shown below.
- ⚡ New! Added `ToJSONObject` and `ToJSONArray` to the `IMVCRESTResponse`. These methods automatically parse the response body and return a `TJSONObject` or a `TJSONArray` respectively. These methods work as a factory - the client code need to handle returned istances. Is the body is not compatible with the request (a.k.a. is not a JSONObject in case of `ToJSONObject`, or is not a JSONArray in case of `ToJSONArray`) an exception is raised.
- ⚡ New! Added support for primary GUID (UUID) primary keys, attributes and serialization (More info at [issue 552](https://github.com/danieleteti/delphimvcframework/issues/552)). Thanks to [Marcelo Jaloto](https://github.com/marcelojaloto) for its important collaboration.
- ⚡ New! Added `TMVCJWTBlackListMiddleware` to allow black-listing and (a sort of) logout for a JWT based authentication. This middleware **must** be registered **after** the `TMVCJWTAuthenticationMiddleware`.
> This middleware provides 2 events named: `OnAcceptToken` (invoked when a request contains a token - need to returns true/false if the token is still accepted by the server or not) and `OnNewJWTToBlackList` (invoked when a client ask to blacklist its current token). There is a new sample available which shows the funtionalities: `samples\middleware_jwtblacklist`.
- ⚡New! `MVCFromBody` attribute, useful to automatically inject the request body as actual object in the action paramaters. For instance in the following action the body request is automatically deserialized as an object of class TPerson.
- ⚡New! `MVCFromQueryString` attribute, useful to automatically inject a query string paramater an action paramater. For instance in the following action the query string params `fromDate` is automatically deserialized as a `TDate` value and injected in the action.
- ⚡New! `MVCFromHeader` attribute, useful to automatically inject a header value as an action parameter. For instance in the following action the header params `XMyCoolHeader` is automatically deserialized as `String` value and injected in the action.
- ⚡New! `MVCFromCookie` attribute, useful to automatically inject a cookie value as an action parameter. For instance in the following action the cookie `MyCoolCookie` is automatically deserialized as `TDate` value and injected in the action.
- ✅ Improved! While not strictly required nor defined, DMVCFramework supports sending body data for all HTTP VERBS - see https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/GET
- ⚡ New! Automated support to avoid "mid-air collisions". New methods `SetETag` and `CheckIfMatch` allows a better security without adding complexity to the controller code - check `avoid_mid_air_collisions_sample.dproj` sample and see https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/ETag#avoiding_mid-air_collisions for more info about mid-air collisions.
- ✅ Improved! Ignored fields handling now is much better in renders method and in `ObjDict` as well. See [issue 528](https://github.com/danieleteti/delphimvcframework/issues/528).
- Merged [PR#543](https://github.com/danieleteti/delphimvcframework/pull/543) (Now the `PathInfo` is trimmed so the router convert this "http://myserver.com/one " to this "http://myserver.com/one")
- Fix a very subtle bug in `MaxRecordCount` parameter for RQL based methods in `TMVCActiveRecord`
- Uniformed behavior in `Update` and `Delete` method in `TMVCActiveRecord`. Now these methods raise an exception if the record doesn't exists anymore in the table (update or delete statements return `AffectedRows` = 0). The behavior can be altered using the new parameter in the call, which by default is `true`.
> WARNING! This change could raise some incompatibilities with the previous version, however this is the correct behavior. Consider the previous one a "incorrect behavior to fix".
> This version is the version referenced by the [DelphiMVCFramework - The Official Guide](http://www.danieleteti.it/books/) book (available in english, portuguese and spanish).
This version introduced new features in many different areas (swagger, server side view, MVCActiveRecord, renders etc.) however there is no a single-big-feature. This version contains also a good number of bugfixes. It's not a critical updated, but this is the *best version ever* (at least, so far...) and is the suggested version for starting new projects. Enjoy!
- When a JSON-RPC Request returns a `System.Boolean` the `result` will be a JSON `true` or `false` and no `1` or `0` as it was in the `3.2.0-boron`.
-`IMVCJSONRPCExecutor.ExecuteNotification` returns a `IJSONRPCResponse`. In case of error response contains information about the error, in case of successful execution the response is a [Null Object](https://en.wikipedia.org/wiki/Null_object_pattern).
- New React demo (Thanks to [Angelo Sobreira da Silva](https://github.com/angelosobreira))
- Serialization support for `TList<Integer>`, `TList<String>`, `TList<Boolean>` and for all `TList<T>` of simple types.
- Added method `MetadataAsJSONObject(FieldNameCase: TMVCNameCase = ncLowerCase): TJSONObject;` in `TDataSetHelper`. This method returns the dataset field definitions. While this is valid only for Delphi datasets, can be useful to describe a dataset to a Delphi client.
```json
{
"fielddefs": [
{
"datatype": 3,
"displayname": "ID",
"fieldname": "id",
"precision": 0,
"size": 0
},
{
"datatype": 24,
"displayname": "CODE",
"fieldname": "code",
"precision": 0,
"size": 5
},
{
"datatype": 24,
"displayname": "DESCRIPTION",
"fieldname": "description",
"precision": 0,
"size": 200
},
{
"datatype": 37,
"displayname": "PRICE",
"fieldname": "price",
"precision": 18,
"size": 2
}
]
}
```
The static method `class procedure TFireDACUtils.CreateDatasetFromMetadata(
AFDMemTable: TFDMemTable; AMeta: TJSONObject);` gets the previous structure and initialize the fields of `AFDMemTable` with it. When a TFDMemTable is initialized using this approach, the data can be directly loaded from a jsonarray of jsonobject with the same field names. *WARNING: This mechanism works only for Delphi clients*. Check sample `articles_crud_vcl_client_meta.dproj` to understand the involved mechanisms.
- Added `foReadOnly` and `foWriteOnly` as field options in `MVCTableField` attribute (used by `TMVCActiveRecord`). Currently available field options are:
- *foPrimaryKey* { it's the primary key of the mapped table }
- *foAutoGenerated* { not written, read - similar to foReadOnly but is reloaded after insert and update }
- *foReadOnly* { not written, read }
- *foWriteOnly* { written, not read }
Now it is possible to declare entities like the followings (or with any other combinations):
- Added the ability to deserialize an object, or alist of objects, starting from an arbitrary node in the JSON (or other format) present in the request body. Works for `BodyAs<T>` and for `BodyAsListOf<T>` (Thanks to [Raphaël Emourgeon](https://github.com/osaris) for the `BodyAsListOf<T>` [implementation](https://github.com/danieleteti/delphimvcframework/issues/415)).
- Improved `TMVCStaticFilesMiddleware`. Now is able to correctly serve SPA applications from any subfolder.
- Added property `Context.HostingFrameworkType`. This property is of type `TMVCHostingFrameworkType` and can assume one of the following values: `hftIndy` (if the service is using the built-in Indy HTTP server) , `hftApache` (if the project is compiled as Apache module) or `hftISAPI` (if the project is compiled as ISAPI module).
-`TMVCNameCase` got the new `ncSnakeCase` among the possibles casing (thanks to [João Antônio Duarte](https://github.com/joaoduarte19) for its work in this area).
Now the `TMVCNameCase` declaration is the following:
- Support for [Mustache](https://mustache.github.io/) partials (Thanks to [David Moorhouse](https://github.com/fastbike) and his work about [issue 221](https://github.com/danieleteti/delphimvcframework/issues/221)). Sample *\samples\serversideviews_mustache* has been updated to show how to use partials.
- Added dynamic properties access to `TMVCActiveRecord` descendants. Indexed property `Attributes` is index using the property name and set/get a `TValue` representing the property value.
- **Breaking Change**! `TMVCStaticFileMiddleware` cannot be registered to "/" anymore
- The suggested solution is to create a simple redirection controller which redirect "/" to the proper path (check [this example](https://github.com/danieleteti/delphimvcframework/blob/master/samples/middleware_staticfiles/SPARedirectController.pas)).
- **Breaking Change!** `DocumentRoot` of `TMVCStaticFileMiddleware` must be a valid folder. If `DocumentRoot` doesn't exist an exception is raised.
- Fix for [issue 421](https://github.com/danieleteti/delphimvcframework/issues/421)
- Fix for [issue 424](https://github.com/danieleteti/delphimvcframework/issues/424)
- Fix for [issue436](https://github.com/danieleteti/delphimvcframework/issues/436).
- Fix for [issue438](https://github.com/danieleteti/delphimvcframework/issues/438) (Thanks to [jadeade](https://github.com/jadeade))
- Fix for [issue432](https://github.com/danieleteti/delphimvcframework/issues/432)
- Fix for [issue435](https://github.com/danieleteti/delphimvcframework/issues/435) (Thanks to [sonjli](https://github.com/sonjli) for its initial work)
- Fix for [issue434](https://github.com/danieleteti/delphimvcframework/issues/434) (Thanks to [David Moorhouse](https://github.com/fastbike) for his detailed analysis)
- Fix for [issue221](https://github.com/danieleteti/delphimvcframework/issues/221)
- Fix for [issue430](https://github.com/danieleteti/delphimvcframework/issues/430) (Thanks to [sonjli](https://github.com/sonjli) for its initial work)
- Fix for [issue444](https://github.com/danieleteti/delphimvcframework/issues/444)
- Fix for [issue408](https://github.com/danieleteti/delphimvcframework/issues/408) a.k.a. *docExpansion parameter for Swagger*
Check [all the issues closed in this release](https://github.com/danieleteti/delphimvcframework/issues?q=+is%3Aissue+milestone%3A3.2.1-carbon).
- New! Attribute `MVCDoNotDeserialize`. If marked with this RTTI attribute, a property or a field is not deserialized and its value remain the same as was before the object deserialization.
- New! *MVCNameAs* attribute got the param `Fixed` (default: false). If `Fixed` is true, then the name is not processed by the `MVCNameCase` attribute assigned to the owner type.
- New! Added support for interfaces serialization - now it is possible to serialize Spring4D collections (thanks to [João Antônio Duarte](https://github.com/joaoduarte19))
- New! Added support for rendering Spring4D Nullable Types - (thanks to [João Antônio Duarte](https://github.com/joaoduarte19))
- New! Added `OnRouterLog` event to log custom information for each request (thanks to [Andrea Ciotti](https://github.com/andreaciotti) for the first implementation and its PR)
- New! Optionally load system controllers (those who provide `/describeserver.info`, `/describeplatform.info` and `/serverconfig.info` system actions) setting `Config[TMVCConfigKey.LoadSystemControllers] := 'false';` in the configuration block.
- Improved! Now the router consider `Accept:*/*` compatible for every `MVCProduces` values.
- Improved! Greatly improved support for [HATEOAS](https://en.wikipedia.org/wiki/HATEOAS) in renders. Check `TRenderSampleController.GetPeople_AsObjectList_HATEOS` and all the others actions end with `HATEOS` in `renders.dproj` sample).
- New! `TMVCActiveRecord.Count` method (e.g. `TMVCActiveRecord.Count(TCustomer)` returns the number of records for the entity mapped by the class `TCustomer`)
- Change! `TMVCACtiveRecord.GetByPK<T>` raises an exception by default if the record is not found - optionally can returns `nil` using new parameter `RaiseExceptionIfNotFound`
- New! `TMVCAnalyticsMiddleware` to do automatic analytics on the API (generates a CSV file). Based on an idea by Nirav Kaku (https://www.facebook.com/nirav.kaku). Check the sample in `\samples\middleware_analytics\`
- New! Microsoft SQLServer Support in `MVCActiveRecord` and RQL (*thanks to one of the biggest Delphi based company in Italy which heavily uses DMVCFramework* and *[DMSContainer](http://www.bittimeprofessionals.it/prodotti/dmscontainer)*).
- Improved! All `ActiveRecord` methods which retrieve records can now specify the data type of each parameter (using Delphi's `TFieldType` enumeration).
- Improved! In case of unhandled exception `TMVCEngine` is compliant with the default response content-type (usually it did would reply using `text/plain`).
- Added! New overloads for all the Log\* calls. Now it is possible to call `LogD(lMyObject)` to get logged `lMyObject` as JSON (custom type serializers not supported in log).
- New! `StrDict(array of string, array of string)` function allows to render a dictionary of strings in a really simple way. See the following action sample.
- New! Custom Exception Handling (Based on work of [David Moorhouse](https://github.com/fastbike)). Sample *custom_exception_handling* show how to use it.
- SSL Server support for `TMVCListener` (Thanks to [Sven Harazim](https://github.com/landrix)).
- Improved! Datasets serialization speed improvement. In some case the performance [improves of 2 order of magnitude](https://github.com/danieleteti/delphimvcframework/issues/205#issuecomment-479513158). (Thanks to https://github.com/pedrooliveira01).
- New! Added `in` operator in RQL parser (Thank you to [João Antônio Duarte](https://github.com/joaoduarte19) for his initial work on this).
- Added new method in the dataset helper to load data into a dataset from a specific JSONArray property of a JSONObject `procedure TDataSetHelper.LoadJSONArrayFromJSONObjectProperty(const AJSONObjectString: string; const aPropertyName: String);`
- New! Added support for `TArray<String>`, `TArray<Integer>` and `TArray<Double>` in default JSON serializer (Thank you [Pedro Oliveira](https://github.com/pedrooliveira01))
- Improved JWT Standard Compliance! Thanks to [Vinicius Sanchez](https://github.com/viniciussanchez) for his work on [issue #241](https://github.com/danieleteti/delphimvcframework/issues/241)
- Added de/serializing iterables (e.g. generic lists) support without `MVCListOf` attribute (Thank you to [João Antônio Duarte](https://github.com/joaoduarte19)).
- New! The **MVCAREntitiesGenerator** can optionally register all the generated entities also in the `ActiveRecordMappingRegistry` (Thanks to [Fabrizio Bitti](https://twitter.com/fabriziobitti) from [bit Time Software](http://www.bittime.it))
- New! Children objects lifecycle management in `TMVCActiveRecord` (methods `AddChildren` and `RemoveChildren`). Really useful to manage child objects such relations or derived properties and are safe in case of multiple addition of the same object as children.
- New! **ObjectDict** function is the suggested way to render all the most common data types. It returns a `IMVCObjectDictionary` which is automatically rendered by the renders. Check the `renders.dproj` sample. Here's some example of the shining new `ObjectDict()`.
**Example 1: Rendering a list of objects not freeing them after rendering**
.Add('title', 'Details for ' + TPerson(APerson).FullName);
Links
.AddRefLink
.Add(HATEOAS.HREF, '/people')
.Add(HATEOAS.REL, 'people')
.Add(HATEOAS._TYPE, 'application/json');
end));
end;
```
`ObjectDict` is able to render multiple data sources (datasets, objectlists, objects or StrDict) at the same time using different casing, HATEOAS callbacks and modes.
- Added ability to serialize/deserialize types enumerated by an array of mapped values (Thanks to [João Antônio Duarte](https://github.com/joaoduarte19)).
- In `MVCActiveRecord` attribute `MVCPrimaryKey` has been removed and merged with `MVCTableField`, so now `TMVCActiveRecordFieldOption` is a set of `foPrimaryKey`, `foAutoGenerated`, `foTransient` (check `activerecord_showcase.dproj` sample).
- Middleware `OnAfterControllerAction` are now invoked in the same order of `OnBeforeControllerAction` (previously were invoked in reversed order).
-`TMVCEngine` is no more responsible for static file serving. If you need static files used the new `TMVCStaticFilesMiddleware` (check the sample). As consequence `TMVCConfigKey.DocumentRoot`, `TMVCConfigKey.IndexDocument` and `TMVCConfigKey.FallbackResource` are no more available.
-`TMVCEngine.Config` property is now read-only. Can be changed only in the anonymous method injected in the constructor.
- Fixed! [issue379](https://github.com/danieleteti/delphimvcframework/issues/379) (Thanks to [João Antônio Duarte](https://github.com/joaoduarte19) and [Maincosi](https://github.com/maiconsi) for their work)
- Fixed! Has been patched a serious security bug affecting deployment configurations which uses internal WebServer to serve static files (do not affect all Apache, IIS or proxied deployments). Thanks to **Stephan Munz** to have discovered it. *Update to dmvcframework-3.2-RC5+ is required for all such kind of deployments.*
If you need trainings, consultancy or custom developments on DelphiMVCFramework, send an email to *dmvcframework at bittime dot it*. Alternatively you can send a request using the [contacts forms](http://www.bittimeprofessionals.it/contatti) on [bit Time Professionals website](http://www.bittimeprofessionals.it). bit Time Professionals is the company behind DelphiMVCFramework, the lead developer works there.
- DMVCFramework *must* be installed using the [Github release](https://github.com/danieleteti/delphimvcframework/releases/latest). Download the zip file
- Now, DMVCFramework expert is installed and you are able to create DMVCFramework project. Go to go to `File->New->Other` select `Delphi Project->DMVC->DelphiMVCFramework Project`
- From the resultant dialog, leave all the default settings and click `OK`
- If you try to compile the project now, you will get compiler errors because we've to configure the library paths to let the compiler finds the needed source files
- go to `Tools->Options->Language->Delphi->Library` and add in the `Library Path` the following paths:
- C:\DMVC\sources
- C:\DMVC\lib\dmustache
- C:\DMVC\lib\loggerpro
- C:\DMVC\lib\swagdoc\Source
- Run the project (F9)
- Now, a new console application is running serving you first DMVCFramework server.
- Simple, isn't it?
- The wizard generated controller shown some basic setup and some actions. You can start from here to create your application. Use the huge number of sample to understand how each DMVCFramwork feature work.
If you don't plan to deploy your DMVCFramework server behind a webserver (apache or IIS) you can also pack more than one listener application server into one single executable. In this case, the process is a bit different and involves the creation of a listener context. However, create a new server is a simple task:
Resource Query Language (RQL) is a query language designed for use in URIs with object style data structures. DMVCFramework supports RQL natively and the included MVCActiveRecord micro-framework, implement a large subset of the RQL specs.
RQL can be thought as basically a set of nestable named operators which each have a set of arguments. RQL is designed to have an extremely simple, but extensible grammar that can be written in a URL friendly query string. A simple RQL query with a single operator that indicates a search for any resources with a property of "foo" that has value of 5 could be written:
```SPARQL
eq(foo,5)
```
A more complex filter can include an arbitrary number of chained functions
limit(count,start,maxCount) - Returns the given range of objects from the result set
contains(<property>,<value|expression>) - Filters for objects where the specified property's value is an array and the array contains any value that equals the provided value or satisfies the provided expression.
in(<property>,<array-of-values>) - Filters for objects where the specified property's value is in the provided array
out(<property>,<array-of-values>) - Filters for objects where the specified property's value is not in the provided array
select(<property>,<property>,...) - Trims each object down to the set of properties defined in the arguments
values(<property>) - Returns an array of the given property value for each object
aggregate(<property|function>,...) - Aggregates the array, grouping by objects that are distinct for the provided properties, and then reduces the remaining other property values using the provided functions
distinct() - Returns a result set with duplicates removed
excludes(<property>,<value|expression>) - Filters for objects where the specified property's value is an array and the array does not contain any of value that equals the provided value or satisfies the provided expression.
rel(<relationname?>,<query>) - Applies the provided query against the linked data of the provided relation name.
sum(<property?>) - Finds the sum of every value in the array or if the property argument is provided, returns the sum of the value of property for every object in the array
mean(<property?>) - Finds the mean of every value in the array or if the property argument is provided, returns the mean of the value of property for every object in the array
max(<property?>) - Finds the maximum of every value in the array or if the property argument is provided, returns the maximum of the value of property for every object in the array
min(<property?>) - Finds the minimum of every value in the array or if the property argument is provided, returns the minimum of the value of property for every object in the array
recurse(<property?>) - Recursively searches, looking in children of the object as objects in arrays in the given property value
first() - Returns the first record of the query's result set
one() - Returns the first and only record of the query's result set, or produces an error if the query's result set has more or less than one record in it.
count() - Returns the count of the number of records in the query's result set
Since 3.4.0-neon dmvcframework supports dotEnv configuration files.
> TL:DR "Read key-value pairs from a .env file and set them as environment variables"
The format is not formally specified and still improves over time. That being said, .env files should mostly look like Bash files.
Keys can be unquoted or single-quoted. Values can be unquoted, single- or double-quoted. Spaces before and after keys, equal signs, and values are ignored. Values can be followed by a comment.
**Variable expansion**
dmvcframework' dotEnv can interpolate variables using POSIX variable expansion.
This is a valid .env file:
```bash
############
# ENV FILE #
############
mode=dev
#DB Name
dbhostname=my_product_db_dev
#The DB username
dbuser=my_user
#The DB password (in this example is read from an EnvVariable)
