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Re: GDL2, EOSQLQualifier Implementation


From: David Ayers
Subject: Re: GDL2, EOSQLQualifier Implementation
Date: Fri, 24 Jul 2009 19:12:16 +0200

Am Freitag, den 24.07.2009, 12:17 +0800 schrieb Georg Fleischmann:
> here is my implementation of EOSQLQualifier.
> EOExpressionArray seems to be an overkill here, but I just used the  
> ivar as is.
> 
> * EOAccess/EOSQLQualifier:
>       [EOSQLQualifier -initWithEntity:qualifierFormat:]
>       [EOSQLQualifier -schemaBasedQualifierWithRootEntity:]
>       [EOSQLQualifier -sqlStringForSQLExpression:]
>       [EOSQLQualifier -dealloc]
>       implemented

Thanks! Committed.

Cheers,
David

> 
> *** EOAccess/EOSQLQualifier.m.old     Sun Jul 19 12:18:00 2009
> --- EOAccess/EOSQLQualifier.m Tue Jul 21 12:23:32 2009
> ***************
> *** 58,63 ****
> --- 58,64 ----
>    #include <EOAccess/EOJoin.h>
>    #include <EOAccess/EOEntity.h>
>    #include <EOAccess/EOSQLExpression.h>
> + #include <EOAccess/EOExpressionArray.h>
> 
>    #include <EOControl/EOQualifier.h>
>    #include <EOControl/EOEditingContext.h>
> ***************
> *** 81,102 ****
>    - (id)initWithEntity: (EOEntity *)entity
>         qualifierFormat: (NSString *)qualifierFormat, ...
>    {
> !   NSEmitTODO();  //TODO
> !   [self notImplemented: _cmd]; //TODO
> 
> !   return nil;
>    }
> 
>    - (EOQualifier *)schemaBasedQualifierWithRootEntity:(EOEntity *) 
> entity
>    {
> !   [self notImplemented: _cmd];
> !   return nil;
>    }
> 
>    - (NSString *)sqlStringForSQLExpression:(EOSQLExpression *) 
> sqlExpression
>    {
> !   [self notImplemented: _cmd];
> !   return nil;
>    }
> 
>    @end
> --- 82,124 ----
>    - (id)initWithEntity: (EOEntity *)entity
>         qualifierFormat: (NSString *)qualifierFormat, ...
>    {
> !   va_list           args;
> !   NSMutableString   *sqlString;
> 
> !   if(!entity)
> !       [NSException raise: NSInvalidArgumentException
> !                   format: @"%@ -- %@ 0x%x: no entity specified",
> !           NSStringFromSelector(_cmd),
> !           NSStringFromClass([self class]),
> !           self];
> !
> !   ASSIGN(_entity, entity);
> !
> !   va_start (args, qualifierFormat);
> !   sqlString = [NSMutableString stringWithFormat:qualifierFormat  
> arguments:args];
> !   va_end (args);
> !
> !   _contents = [[EOExpressionArray alloc] initWithPrefix:sqlString  
> infix:nil suffix:nil];
> !
> !   return self;
>    }
> 
>    - (EOQualifier *)schemaBasedQualifierWithRootEntity:(EOEntity *) 
> entity
>    {
> !   return self;
>    }
> 
>    - (NSString *)sqlStringForSQLExpression:(EOSQLExpression *) 
> sqlExpression
>    {
> !   return [_contents expressionValueForContext:nil];
> ! }
> !
> ! - (void)dealloc
> ! {
> !   DESTROY(_entity);
> !   DESTROY(_contents);
> !
> !   [super dealloc];
>    }
> 
>    @end
> 
> 
> 
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-- 
David Ayers          Fellow of the Free Software Foundation Europe
http://www.fsfe.org                     http://fellowship.fsfe.org






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