Merge pull request #228 from joaoduarte19/rql_changes

Added Boolean type support in RQLParser

sources/MVCFramework.RQL.AST2FirebirdSQL.pas

@@ -83,6 +83,13 @@ var
 begin
   if aRQLFIlter.RightValueType = vtString then
     lValue := aRQLFIlter.OpRight.QuotedString('''')
+  else if aRQLFIlter.RightValueType = vtBoolean then
+  begin
+    if SameText(aRQLFIlter.OpRight, 'true') then
+      lValue := '1'
+    else
+      lValue := '0';
+  end
   else
     lValue := aRQLFIlter.OpRight;
 

sources/MVCFramework.RQL.AST2MSSQL.pas

@@ -91,6 +91,13 @@ var
 begin
   if aRQLFIlter.RightValueType = vtString then
     lValue := aRQLFIlter.OpRight.QuotedString('''')
+  else if aRQLFIlter.RightValueType = vtBoolean then
+  begin
+    if SameText(aRQLFIlter.OpRight, 'true') then
+      lValue := '1'
+    else
+      lValue := '0';
+  end
   else
     lValue := aRQLFIlter.OpRight;
 

sources/MVCFramework.RQL.AST2MySQL.pas

@@ -82,6 +82,13 @@ var
 begin
   if aRQLFIlter.RightValueType = vtString then
     lValue := aRQLFIlter.OpRight.QuotedString('''')
+  else if aRQLFIlter.RightValueType = vtBoolean then
+  begin
+    if SameText(aRQLFIlter.OpRight, 'true') then
+      lValue := '1'
+    else
+      lValue := '0';
+  end
   else
     lValue := aRQLFIlter.OpRight;
 

sources/MVCFramework.RQL.Parser.pas

@@ -78,7 +78,7 @@ type
     tkOpenPar, tkClosedPar, tkOpenBracket, tkCloseBracket, tkComma, tkSemicolon, tkPlus, tkMinus, tkDblQuote,
     tkQuote, tkSpace, tkContains, tkIn, tkUnknown);
 
-  TRQLValueType = (vtInteger, vtString, vtIntegerArray, vtStringArray);
+  TRQLValueType = (vtInteger, vtString, vtBoolean, vtIntegerArray, vtStringArray);
 
   TRQLCustom = class;
 
@@ -187,6 +187,7 @@ type
     function MatchFieldStringValue(out lFieldValue: string): Boolean;
     function MatchFieldNumericValue(out lFieldValue: string): Boolean;
     function MatchFieldArrayValue(out lFieldValue: string): Boolean;
+    function MatchFieldBooleanValue(out lFieldValue: string): Boolean;
     function MatchSymbol(const Symbol: Char): Boolean;
     procedure SaveCurPos;
     procedure BackToLastPos;
@@ -613,9 +614,13 @@ begin
   else
   begin
     BackToLastPos;
-    if not MatchFieldNumericValue(lFieldValue) then
-      Error('Expected numeric value');
-    lValueType := vtInteger;
+
+    if MatchFieldBooleanValue(lFieldValue) then
+      lValueType := vtBoolean
+    else if MatchFieldNumericValue(lFieldValue) then
+      lValueType := vtInteger
+    else
+      Error('Expected numeric or boolean value');
   end;
   EatWhiteSpaces;
   if GetToken <> tkClosedPar then
@@ -857,6 +862,30 @@ begin
   Result := False;
 end;
 
+function TRQL2SQL.MatchFieldBooleanValue(out lFieldValue: string): Boolean;
+var
+  lChar: Char;
+begin
+  Result := True;
+  lFieldValue := '';
+  lChar := C(0).ToLower;
+
+  if (lChar = 't') and (C(1).ToLower = 'r') and (C(2).ToLower = 'u') and (C(3).ToLower = 'e') then
+  begin
+    Skip(4);
+    Result := True;
+    lFieldValue := 'true';
+  end
+  else if (lChar = 'f') and (C(1).ToLower = 'a') and (C(2).ToLower = 'l') and (C(3).ToLower = 's') and (C(4).ToLower = 'e') then
+  begin
+    Skip(5);
+    Result := True;
+    lFieldValue := 'false';
+  end
+  else
+    Exit(False)
+end;
+
 function TRQL2SQL.MatchFieldName(out lFieldName: string): Boolean;
 var
   lChar: Char;

tools/bin/rqlhistory.txt

@@ -1,3 +1,5 @@
+eq(value,false)
+eq(value,true)
 in ( value , [ 1 , 2 , 3 ] ) 
 in ( value , [ 1 , 2 , 3 ] ) 
 in(value,[])