Warning: this branch commit is largely untested, and known to throw exceptions as database structure retrieval is currently missing!

Further work on SPMySQLFramework integration:
 - Improve SPMySQL framework build settings including correct ppc builds and a Distribution configuration for the build distributions to match
 - Add new convenience querying and result methods to the framework
 - Amend Sequel Pro source to use the new SPMySQL.framework methods everywhere, replacing MCPKit methods where they differ and improving some functions
 - Remove MCPKit from the source
 - Fix a number of warnings on Release-style builds

1 files changed, 0 insertions, 1342 deletions

diff --git a/Frameworks/MCPKit/MCPEntrepriseKit/MCPObject.m b/Frameworks/MCPKit/MCPEntrepriseKit/MCPObject.m
deleted file mode 100644
index dba963c6..00000000
--- a/Frameworks/MCPKit/MCPEntrepriseKit/MCPObject.m
+++ /dev/null
@@ -1,1342 +0,0 @@
-//
-//  $Id$
-//
-//  MCPObject.m
-//  MCPKit
-//
-//  Created by Serge Cohen (serge.cohen@m4x.org) on 19/05/04.
-//  Copyright (c) 2004 Serge Cohen. All rights reserved.
-//
-//  Forked by the Sequel Pro team (sequelpro.com), April 2009
-//
-//  This program is free software; you can redistribute it and/or modify
-//  it under the terms of the GNU General Public License as published by
-//  the Free Software Foundation; either version 2 of the License, or
-//  (at your option) any later version.
-//
-//  This program is distributed in the hope that it will be useful,
-//  but WITHOUT ANY WARRANTY; without even the implied warranty of
-//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-//  GNU General Public License for more details.
-//
-//  You should have received a copy of the GNU General Public License
-//  along with this program; if not, write to the Free Software
-//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-//
-//  More info at <http://mysql-cocoa.sourceforge.net/>
-//  More info at <http://code.google.com/p/sequel-pro/>
-
-#import "MCPObject.h"
-
-#import <MCPKit/MCPKit.h>
-
-#import "MCPClassDescription.h"
-#import "MCPClassDescription+MCPEntreprise.h"
-#import "MCPAttribute.h"
-#import "MCPRelation.h"
-#import "MCPJoin.h"
-
-@implementation MCPObject
-
-#pragma mark Life of the object
-- (id) init
-/*" Taking care of getting the class description for self (after passing the message up). "*/
-{
-//   NSArray        theAttributes;
-//   unsigned int   i;
-   
-   if (self = [super init]) {
-      classDescription = [[NSClassDescription classDescriptionForClass:[self class]] retain];
-      [self setAttributesToDefault];
-/*
- theAttributes = [classDescription attributeKeys];
-      for (i=0; [theAttributes count] != i; ++i) { // setting the attributtes with proper defaults.
-         NSString       *theKey = (NSString *) [theAttributes objectAtIndex:i];
-         
-         [self setValue:[self defaultValueForKey:theKey] forKey:theKey];
-      }
- */
-   }
-   return self;
-}
-
-- (id) initWithDictionary:(NSDictionary *) dictionary
-/*" This method will use the class description to fetch in the dictionary the values of the attributes of the object....
-	Should try to get this description a bit clearer."*/
-{
-	self = [super init];
-	if (self) {
-		NSUInteger		i;
-		NSArray				*attrArray;
-		
-      classDescription = [[NSClassDescription classDescriptionForClass:[self class]] retain];
-		[self setAttributesToDefault];
-		attrArray = [classDescription attributes];
-		for (i=0; [attrArray count] != i; ++i) {
-			MCPAttribute		*currentAttribute = (MCPAttribute *)[attrArray objectAtIndex:i];
-			id						currentValue = [dictionary objectForKey:[currentAttribute name]];
-
-			if (! currentValue) {
-				currentValue = [dictionary objectForKey:[currentAttribute externalName]];
-			}
-			if (currentValue) {
-				[self setValue:currentValue forKey:[currentAttribute name]];
-			}
-		}
-	}
-	return self;
-}
-
-- (void) dealloc
-/*" Deallocating the class description, then passes the message to super. "*/
-{
-//	unsigned int		i;
-//	NSArray				*tmpAttributes = [classDescription attributes];
-	
-/*	for (i=0; [tmpAttributes count] != i; ++i) {
-		MCPAttribute		*tmpAttr = [tmpAttributes objectAtIndex:i];
-		if ([tmpAttr valueClass]) {
-			[self setValue:nil forKey:[tmpAttr name]];
-		}
-	}
-*/
-   [classDescription release];
-   [connection release];
-   [super dealloc];
-}
-
-- (void) setAttributesToDefault
-/*" Set all the attributes to default values, except for auto-generated and primary key attributes, which are set to NULL.
-
-   NOTE : !! In the current version the auto-generated and key are ALSO set to default values!!.
-   "*/
-{
-   NSArray        *theAttributes = [classDescription attributes];
-//   NSArray        *thePrimKeys = [classDescription primaryKeyAttributes];
-   NSUInteger       i;
-   
-   for (i=0; [theAttributes count] != i; ++i) {
-      MCPAttribute   *theAttribute = (MCPAttribute *) [theAttributes objectAtIndex:i];
-      NSString       *theKey = [theAttribute name];
-
-      if (! [theAttribute autoGenerated]) {
-         [self setValue:[self defaultValueForKey:theKey] forKey:theKey];
-      }
-      else { // Auto-generated attribute ... set it to NULL:
-         [self setValue:[self defaultValueForKey:theKey] forKey:theKey];
-      }
-   }
-/*
- for (i=0; [thePrimKeys count] != i; ++i) {
-      MCPAttribute   *theAttribute = (MCPAttribute *) [thePrimKeys objectAtIndex:i];
-      if (! [theAttribute autoGenerated]) {
-         NSString    *theKey = [theAttribute name];
-         
-         [[self valueForKey:theKey] release];
-         [self setValue:NULL forKey:theKey];
-      }
-   }
- */
-   return;
-}
-
-#pragma mark Accessor(s)
-- (MCPClassDescription *) classDescription
-{
-   return classDescription;
-}
-
-- (MCPConnection *) connection
-{
-   if ((! connection) || (! [connection checkConnection])) {
-      [self setConnection:nil];
-   }
-   return connection;
-}
-
-- (void) setConnection:(MCPConnection *) iConnection
-{
-   if (iConnection != connection) {
-      [connection release];
-      connection = [iConnection retain];
-   }   
-}
-
-
-
-#pragma mark Database interface
-- (id) readFromDBRow:(NSDictionary *) iDictionary withTableName:(NSString *) iTableName
-/*" Uses a query result row (described as a NSDictionary) to set the instance variables of self. If
-   the result contains columns from multiple tables, the iTableName can be used to specify the alias
-   used for the table name corresponding to the class.
-
-If iTableName == nil, the columns will be searched first without table name (column_name) and if
-   not found then with the table name in front (from the class description : table_name.column_name).
-
-Otherwise, the search will be performed in the following order : iTableName.column_name, column_name,
-   table_name.column_name.
-   "*/
-{
-   NSArray     *theAttributeKeys = [classDescription attributeKeys];
-   NSArray     *thePrefixArray;
-   NSUInteger    i;
-   
-// Depending on the value of iTableName, get the search order.
-   if ((nil == iTableName) || ([@"" isEqualToString:iTableName])) {
-      thePrefixArray = [NSArray arrayWithObjects:@"", [NSMutableString stringWithFormat:@"%@.", [classDescription externalName]], nil];
-   }
-   else {
-      thePrefixArray = [NSArray arrayWithObjects:[NSString stringWithFormat:@"%@.", iTableName], [NSMutableString stringWithFormat:@"%@.", [classDescription externalName]], @"", nil];
-   }
-   for (i=0; [theAttributeKeys count] != i; ++i) {
-      id                theValue = nil;
-      MCPAttribute      *theAttribute = [classDescription attributeWithName:[theAttributeKeys objectAtIndex:i]];
-      NSUInteger          j;
-      
-      for (j=0; [thePrefixArray count] != j; ++j) {
-         if (theValue = [iDictionary objectForKey:[NSString stringWithFormat:@"%@%@", [thePrefixArray objectAtIndex:j], [theAttribute externalName]]]) {
-            break;
-         }
-      }
-      if (theValue) {
-         [self takeValue:theValue forKey:[theAttribute name]];
-      }
-   }
-   return self;
-}
-
-
-//- (MCPDBReturnCode) setPrimaryKey:(NSDictionary *) iDictionary andFetchFromDB:(MCPConnection *) iConnection
-- (MCPDBReturnCode) setPrimaryKey:(id) iDictionary andFetchFromDB:(MCPConnection *) iConnection
-/*" This method is used to retrieve an object from the DB given its precise primary key. It will return self.
-   If the object is not found in the DB, then all instance variable are set to the default
-   (and autogenerated/primary-key attributes are set to null)."*/
-{
-   BOOL                 missingKey = NO;
-   NSArray              *theKeyAttr = [classDescription primaryKeyAttributes];
-   NSUInteger             i;
-   NSMutableString      *query = [NSMutableString stringWithFormat:@"SELECT * FROM %@ WHERE ", [classDescription externalName]];
-   MCPResult            *result;
-   NSDictionary         *row;
-   
-   [self setConnection:iConnection];
-   if (! iConnection) {
-      return MCPDBReturnNoConnection;
-   }
-   for (i=0; [theKeyAttr count] != i; ++i) {
-      MCPAttribute      *theAttr = [classDescription attributeWithName:[(MCPAttribute *)[theKeyAttr objectAtIndex:i] name]];
-      id                theKeyValue;
-
-//      if (theKeyValue = [iDictionary objectForKey:[theAttr name]]) {
-      if (theKeyValue = [iDictionary valueForKey:[theAttr name]]) {
-         if (i != 0) {
-            [query appendString:@" and "];
-         }
-// Implies the iDictionary IS a dictionary:
-//         [query appendFormat:@"(%@ = %@)", [theAttr externalName], [iConnection quoteObject:[iDictionary objectForKey:[theAttr name]]]];
-// If the iDictionary is just an object complying with NSValueCodeing:
-         [query appendFormat:@"(%@ = %@)", [theAttr externalName], [iConnection quoteObject:theKeyValue]];
-      }
-      else { // Part of the primary key is missing... look for the DB name of the attribute
-			if (theKeyValue = [iDictionary valueForKey:[theAttr externalName]]) {
-				if (i != 0) {
-					[query appendString:@" and "];
-				}
-				[query appendFormat:@"(%@ = %@)", [theAttr externalName], [iConnection quoteObject:theKeyValue]];
-			}
-			else { // Not able to find the value for this attribute !!!
-				missingKey = YES;
-				NSLog(@"Unable to find the value for attribute %@ of object of class %@, will make it default", [theAttr name], [self className]);
-				break;
-			}
-      }
-   } // Now the query is prepared... or a key part is missing:
-   if (missingKey) {
-      [self setAttributesToDefault];
-      return MCPDBReturnIncompleteKey;
-   }
-   result = [iConnection queryString:query];
-   if ([result numOfRows] == 0) {
-      [self setAttributesToDefault];
-      return MCPDBReturnNone;
-   }
-   row = [result fetchRowAsDictionary];
-   [self readFromDBRow:row withTableName:@""];
-   if ([result numOfRows] != 1) {
-      NSLog(@"Got more than one row when querying : %@.... will take only the first one!!! that an IMPORTANT flaw in your data model!!!", query);
-      return MCPDBReturnMultiple;
-   }
-   return MCPDBReturnOK;
-}
-
-
-- (NSDictionary *) checkDBId
-/*" Using the identity properties of the class, this method will check if self already exists in the DB,
-   in which case it will set the primary key attributes to match the DB entry. If the object is not present
-   in the DB, the primary key attributes are set to null if they are declared as aut-generated (untouched otherwise).
-   
-The returned dictionary contains the values of the primary key attributes. It also contains one entry with
-   key MCPDBReturnCode, which contains the result of the operation (was the object in DB?).
-   
-If the identityAttributes of the class description is empty, the entry will always be considered not to be
-   in the DB, AND the primary key attributes of the object will be left unchnaged and returned as they are at
-   call time."*/
-{
-   NSArray                 *theIdAttr = [classDescription identityAttributes];
-   NSMutableDictionary     *theKeys = [NSMutableDictionary dictionary];
-   NSArray                 *theKeyAttr = [classDescription primaryKeyAttributes];
-   MCPConnection           *theConnection = [self connection];
-   MCPResult               *theResult;
-   NSUInteger            i;
-   
-   if (! theConnection) {
-      return [NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithInteger:MCPDBReturnNoConnection], @"MCPDBReturnCode", nil];
-   }
-   if (! [theKeyAttr count]) { // There is no primary key for this object.
-      [theKeys setObject:[NSNumber numberWithInteger:MCPDBReturnNoKey] forKey:@"MCPDBReturnCode"];
-      return [NSDictionary dictionaryWithDictionary:theKeys];
-   }
-   if (! [theIdAttr count]) { // Identity is not defined for this object.
-      [theKeys setObject:[NSNumber numberWithInteger:MCPDBReturnNoIdentity] forKey:@"MCPDBReturnCode"];
-      for (i=0; [theKeyAttr count] != i; ++i) {
-         NSString       *theKey = [(MCPAttribute*)[theKeyAttr objectAtIndex:i] name];
-         [theKeys setObject:[self valueForKey:theKey] forKey:theKey];
-      }
-      return [NSDictionary dictionaryWithDictionary:theKeys];
-   }
-// Do the fetch in the DB.
-   NSMutableString      *theQuery = [NSMutableString stringWithString:@"SELECT "];
-   
-   for (i = 0; [theKeyAttr count] != i; ++i) {
-      if (i) {
-         [theQuery appendString:@", "];
-      }
-      [theQuery appendString:[(MCPAttribute *)[theKeyAttr objectAtIndex:i] externalName]];
-   }
-   [theQuery appendFormat:@" FROM %@ WHERE ", [classDescription externalName]];
-   for (i = 0; [theIdAttr count] != i; ++i) {
-      if (i) {
-         [theQuery appendString:@" AND "];
-      }
-/*
-      if ([[(MCPAttribute *)[theIdAttr objectAtIndex:i] valueClass] isSubclassOfClass:[NSString class]]) {
-         if ([(MCPAttribute *)[theIdAttr objectAtIndex:i] width] != 0) {
-         [theQuery appendFormat:@"(BINARY %@ = SUBSTRING(%@ FROM 1 FOR %u)", [(MCPAttribute *)[theIdAttr objectAtIndex:i] externalName], [theConnection quoteObject:[self valueForKey:[(MCPAttribute *)[theIdAttr objectAtIndex:i] name]]], [(MCPAttribute *)[theIdAttr objectAtIndex:i] width]];
-         }
-         else {
-            [theQuery appendFormat:@"(BINARY %@ = %@)", [(MCPAttribute *)[theIdAttr objectAtIndex:i] externalName], [theConnection quoteObject:[self valueForKey:[(MCPAttribute *)[theIdAttr objectAtIndex:i] name]]]];
-         }
-      }
- */
-      if (([[(MCPAttribute *)[theIdAttr objectAtIndex:i] valueClass] isSubclassOfClass:[NSString class]]) && ([(MCPAttribute *)[theIdAttr objectAtIndex:i] width] != 0)) {
-         [theQuery appendFormat:@"(%@ = SUBSTRING(%@ FROM 1 FOR %ld))", [(MCPAttribute *)[theIdAttr objectAtIndex:i] externalName], [theConnection quoteObject:[self valueForKey:[(MCPAttribute *)[theIdAttr objectAtIndex:i] name]]], [(MCPAttribute *)[theIdAttr objectAtIndex:i] width]];
-      }
-      else {
-         [theQuery appendFormat:@"(%@ = %@)", [(MCPAttribute *)[theIdAttr objectAtIndex:i] externalName], [theConnection quoteObject:[self valueForKey:[(MCPAttribute *)[theIdAttr objectAtIndex:i] name]]]];
-      }
-   }
-   [theQuery appendString:@" ORDER BY "];
-   for (i = 0; [theKeyAttr count] != i; ++i) {
-      if (i) {
-         [theQuery appendString:@", "];
-      }
-      [theQuery appendString:[(MCPAttribute *)[theKeyAttr objectAtIndex:i] externalName]];
-   }
-   theResult = [theConnection queryString:theQuery];
-   if ([theResult numOfRows]) { // the object was found.
-      NSDictionary      *theFirstRow = [theResult fetchRowAsDictionary];
-      if ([theResult numOfRows] != 1) {
-         NSLog(@"in MCPObject -checkDBIdWithConnection: method.... not only one (as expected) but %ld results were found, will take the first one.");
-         [theKeys setObject:[NSNumber numberWithInteger:MCPDBReturnMultiple] forKey:@"MCPDBReturnCode"];
-      }
-      else {
-         [theKeys setObject:[NSNumber numberWithInteger:MCPDBReturnOK] forKey:@"MCPDBReturnCode"];
-      }
-      [theKeys addEntriesFromDictionary:theFirstRow];
-// Setting the value of self for the primary key to the one just found.
-      for (i=0; [theKeyAttr count] != i; ++i) {
-         MCPAttribute      *theAttribute = (MCPAttribute *) [theKeyAttr objectAtIndex:i];
-         
-         [self setValue:[theFirstRow objectForKey:[theAttribute externalName]] forKey:[theAttribute name]];
-      }
-   }
-   else { // Object not found in the DB.
-      for (i = 0; [theKeyAttr count] != i; ++i) {
-         MCPAttribute      *theAttribute = (MCPAttribute *)[theKeyAttr objectAtIndex:i];
-         
-         if ([theAttribute autoGenerated]) {
-            [self setValue:[self defaultValueForKey:[theAttribute name]] forKey:[theAttribute name]];
-         }
-         [theKeys setObject:[self valueForKey:[theAttribute name]] forKey:[theAttribute name]];
-      }
-      [theKeys setObject:[NSNumber numberWithInteger:MCPDBReturnNone] forKey:@"MCPDBReturnCode"];
-// Setting the value of self for the primary key to the default values.
-/*
-      for (i=0; [theKeyAttr count] != i; ++i) {
-         MCPAttribute      *theAttribute = (MCPAttribute *) [theKeyAttr objectAtIndex:i];
-         
-         [self setValue:[self defaultValueForKey:[theAttribute name]] forKey:[theAttribute name]];
-      }
-*/
-   }
-   return [NSDictionary dictionaryWithDictionary:theKeys];
-}
-
-
-- (NSDictionary *) saveInDB
-/*" First will use the checkDBIdWithConnection method to check if the entry is already in the database. If this is the case,
-   it will use the updateInDB... method to update the current DB instance. Otherwise it will make an insert into the database
-   to save the entry, than it makes a select to get the value of autogenerated column, and use them (if necessary) to return
-   the primary key (as NSDictionary).
-   
-   As for checkDBId... the returned dictionary also have a MCPDBReturnCode key with a NSNumber as value containing the
-   return code of the operation."*/
-{
-   MCPConnection        *theConnection = [self connection];
-   NSDictionary         *theCheckReturn = [self checkDBId];
-   NSMutableDictionary  *theRet;
-   NSInteger            theCheckCode = [(NSNumber *)[theCheckReturn objectForKey:@"MCPDBReturnCode"] integerValue];
-   NSUInteger           i;
-   NSUInteger           j;
-   NSMutableString      *theQuery = [NSMutableString string];
-   NSArray              *theAttr = [classDescription attributes];
-
-   switch (theCheckCode) {
-      case MCPDBReturnNoIdentity :  // For this object the identity is not set... so we try to save.
-         break;
-
-      case MCPDBReturnOK : // Object already in the DB (found using checkDBId... method).
-                           //      NSLog(@"in saveUsingConnection: the entry already existed so will update the one with key : %@", theCheckReturn);
-         theCheckCode = [self updateInDB];
-         theRet = [NSMutableDictionary dictionaryWithDictionary:[self primaryKey]];
-         [theRet setObject:[NSNumber numberWithInteger:theCheckCode] forKey:@"MCPDBReturnCode"];
-         return [NSDictionary dictionaryWithDictionary:theRet];
-         break;
-         
-      case MCPDBReturnMultiple : // Multiple were found, the first one will be updated.
-         NSLog(@"Multiple entries found with the same identity ... will update the first one.");
-         theCheckCode = [self updateInDB];
-         theRet = [NSMutableDictionary dictionaryWithDictionary:[self primaryKey]];
-         [theRet setObject:[NSNumber numberWithInteger:theCheckCode] forKey:@"MCPDBReturnCode"];
-         return [NSDictionary dictionaryWithDictionary:theRet];
-         break;
-         
-      case MCPDBReturnNone : // The entry is not already in the DB, save it...
-         break;
-      
-      case MCPDBReturnNoConnection : // Self does not have a connection.
-         NSLog(@"Can not save when the connection is not working...");
-         break;
-      
-      default : // We should not arrive here anyway.
-         NSLog(@"For some resons we got a unexpected result from checkDBId : %ld", theCheckCode);
-         break;
-   }
-      
-// Generate the INSERT query:
-   [theQuery appendFormat:@"INSERT INTO %@ (", [classDescription externalName]];
-   j = 0;
-   for (i=0; [theAttr count] != i; ++i) {
-      if (! [(MCPAttribute *)[theAttr objectAtIndex:i] autoGenerated]) {
-         if (j) {
-            [theQuery appendString:@", "];
-         }
-         [theQuery appendString:[(MCPAttribute *)[theAttr objectAtIndex:i] externalName]];
-         ++j;
-      }
-   }
-   [theQuery appendString:@") VALUES ("];
-   j = 0;
-   for (i=0; [theAttr count] != i; ++i) {
-      if (! [(MCPAttribute *)[theAttr objectAtIndex:i] autoGenerated]) {
-         if (j) {
-            [theQuery appendString:@", "];
-         }
-         [theQuery appendString:[theConnection quoteObject:[self valueForKey:[(MCPAttribute *)[theAttr objectAtIndex:i] name]]]];
-         ++j;
-      }
-   }
-   [theQuery appendString:@")"];
-// Finished preparing the query.
-
-// Now we perform the query...
-   [theConnection queryString:theQuery];
-   if (1 != (i = [theConnection affectedRows])) { // More than one row affected ... Should NEVER occure.
-      NSLog(@"Problem while saving a MCPObject to the database : number of inserted rows is : %ld !!!", i);
-      NSLog(@"Maybe there is an error : %@ ", [theConnection getLastErrorMessage]);
-      NSLog(@"The class of the object is : %@, and it's description is :\n%@", [self className], [self descriptionWithLocale:nil]);
-      theCheckCode = (i == 0) ? MCPDBReturnNone : MCPDBReturnMultiple;
-   }
-   else {
-      theCheckCode = MCPDBReturnOK;
-   }
-
-// Finally we get the primary key of the inserted object:
-   if ([classDescription singleIntAutoGenKey]) {
-      NSString                *thePrimKey = [(MCPAttribute *) [[classDescription primaryKeyAttributes] objectAtIndex:0] name];
-      
-      [self setValue:[NSNumber numberWithLongLong:[theConnection insertId]] forKey:thePrimKey];
-   }
-   [self getAutoGenerated];
-   theRet = [NSMutableDictionary dictionaryWithDictionary:[self primaryKey]];
-   [theRet setObject:[NSNumber numberWithInteger:theCheckCode] forKey:@"MCPDBReturnCode"];
-   
-   return [NSDictionary dictionaryWithDictionary:theRet];
-}
-
-
-
-- (MCPDBReturnCode) getAutoGenerated
-/*"  This method will use the Identity attributes of the object to retrieve the autogenerated
-attributes from the database.
-
-If the identity is not defined for this class/entity, then it will try to use the primary key
-to get the auto-generated values.
-
-Obviously this might generate a bug if one of the Identity attributes is autogenerated.
-This will create a trouble if some object does not have an identity defined but still contains
-some auto-generated attributes.
-"*/
-{
-   NSMutableArray    *theAutoAttr = [NSMutableArray array];
-   NSArray           *theAttr = [classDescription attributes];
-   NSArray           *theKeyAttr = [classDescription primaryKeyAttributes];
-   NSUInteger          i,j;
-   NSMutableString   *theQuery;
-   NSInteger               theCheckCode;
-   MCPResult         *theResult;
-   NSDictionary      *theRow;
-   MCPConnection     *theConnection = [self connection];
-
-   if (! theConnection) {
-      return MCPDBReturnNoConnection;
-   }
-
-	if (0 != [[classDescription identityAttributes] count]) {
-      theCheckCode = [(NSNumber *)[[self checkDBId] objectForKey:@"MCPDBReturnCode"] integerValue];
-      if ((MCPDBReturnOK != theCheckCode) && (MCPDBReturnMultiple != theCheckCode)) {
-         NSLog(@"Unable to get the primary key for the object, will abort now the fetch of autoGenerated attributes (left unchanged)!");
-         return theCheckCode;
-      }
-      if (MCPDBReturnMultiple == theCheckCode) {
-         NSLog(@"Will get the autoGenerated values for the first entry....");
-      }
-   }
-   j = 0;
-   for (i=0; [theAttr count] != i; ++i) { // generate the array with autoGenerated attributes.
-      if ([(MCPAttribute *)[theAttr objectAtIndex:i] autoGenerated]) {
-         [theAutoAttr insertObject:[theAttr objectAtIndex:i] atIndex:j];
-         ++j;
-      }
-   }
-   if (0 == [theAutoAttr count]) {
-      return MCPDBReturnOK;
-   }
-
-// Make the query:
-   theQuery = [NSMutableString stringWithString:@"SELECT "];
-   for (i=0; [theAutoAttr count] != i; ++i) {
-      if (i) {
-         [theQuery appendString:@", "];
-      }
-      [theQuery appendString:[(MCPAttribute *)[theAutoAttr objectAtIndex:i] externalName]];
-   }
-   [theQuery appendFormat:@" FROM %@ WHERE ", [classDescription externalName]];
-// Preparing the Where Clause:
-   for (i=0; [theKeyAttr count] != i; ++i) {
-      if (i) {
-         [theQuery appendString:@" AND "];
-      }
-      [theQuery appendFormat:@"( %@ = %@ )", [(MCPAttribute*)[theKeyAttr objectAtIndex:i] externalName], [theConnection quoteObject:[self valueForKey:[(MCPAttribute*)[theKeyAttr objectAtIndex:i] name]]]];
-   }
-// Query is ready:
-   theResult = [theConnection queryString:theQuery];
-	if (! theResult) {
-		NSLog(@"While fetching the auto-generated part of the object, got an error -a nil MCPResult-. Will report that as a MCPDBReturnNone.");
-		return MCPDBReturnNone;
-	}
-   if (0 == [theResult numOfRows]) { // The entry was not found in the DB.
-      if (0 == [[classDescription identityAttributes] count]) {
-         NSLog(@"It seems that the object is not in the DB... but the identity is not defined so there might be a trouble with having the proper ID.");
-      }
-      return MCPDBReturnNone;
-   }
-// Getting the values from the DB select:
-   theRow = [theResult fetchRowAsDictionary];
-   for (i=0; [theAutoAttr count] != i; ++i) {
-      [self setValue:[theRow objectForKey:[(MCPAttribute*)[theAutoAttr objectAtIndex:i] externalName]] forKey:[(MCPAttribute*)[theAutoAttr objectAtIndex:i] name]];
-   }
-// Returning the proper value:
-   if (1 != [theResult numOfRows]) {
-      NSLog(@"Multiple entries (or none : %llu), got the values for the first one...", [theResult numOfRows]);
-      return MCPDBReturnMultiple;
-   }
-   return MCPDBReturnOK;
-}
-
-
-- (MCPDBReturnCode) updateInDB
-/*"This method will use the primary key value held by the object to modify the object that is saved in the DB.
-
-   (NO YET IMPLEMENTED) If the primary key is not complete (some of the attributes are to null or 0) and the identityAttributes
-   (from class description) is not an empty list then it will perform a checkDBId... to try to retrieve the
-   missing part of the primary key.
-   "*/
-{
-   NSArray                 *theAttributes = [classDescription attributes];
-   NSArray                 *thePrimKeyAttributes = [classDescription primaryKeyAttributes];
-   NSMutableString         *theQuery = [NSMutableString string];
-   NSInteger                     theCheckCode;
-   NSUInteger                i, j;
-   MCPConnection           *theConnection = [self connection];
-   
-   if (! theConnection) {
-      return MCPDBReturnNoConnection;
-   }   
-// Generate the query
-   [theQuery appendFormat:@"UPDATE %@ SET ", [classDescription externalName]];
-   // Prepare the value key pairs:
-   j=0;
-   for (i=0 ; [theAttributes count] != i; ++i) {
-      id       theValue = [self valueForKey:[(MCPAttribute *)[theAttributes objectAtIndex:i] name]];
-      
-      if ((theValue) && (! [(MCPAttribute *)[theAttributes objectAtIndex:i] autoGenerated])) {
-         if (j) {
-            [theQuery appendString:@", "];
-         }
-         [theQuery appendFormat:@"%@ = %@ ", [(MCPAttribute *)[theAttributes objectAtIndex:i] externalName], [theConnection quoteObject:theValue]];
-         ++j;
-      }
-   }
-   if (0 == j) { // Nothing has to be updated in this entry....
-      NSLog(@"Tried to update a row from an object that does NOT contain any information!!");
-      return MCPDBReturnNone;
-   }
-   // Prepare the WHERE clause:
-   [theQuery appendFormat:@" WHERE "];
-   j = 0;
-   for (i=0; [thePrimKeyAttributes count] != i; ++i) {
-      id       theValue = [self valueForKey:[(MCPAttribute *)[thePrimKeyAttributes objectAtIndex:i] name]];
-      
-      if (j) {
-         [theQuery appendString:@" AND "];
-      }
-      if (theValue) {
-         [theQuery appendFormat:@"%@ = %@", [(MCPAttribute *)[thePrimKeyAttributes objectAtIndex:i] externalName], [theConnection quoteObject:theValue]];
-         ++j;
-      }
-   }
-// Perform the update:
-   if (j == [thePrimKeyAttributes count]) {
-      [theConnection queryString:theQuery];
-      i = [theConnection affectedRows];
-      switch (i) {
-         case 0 :
-            theCheckCode = MCPDBReturnNone;
-            break;
-         case 1 :
-            theCheckCode = MCPDBReturnOK;
-            break;
-         default :
-            theCheckCode = MCPDBReturnMultiple;
-            break;
-      }
-   }
-   else {
-      NSDictionary         *theKeyCheck = [self checkDBId];
-      NSInteger                  theIdCheckCode = [(NSNumber *) [theKeyCheck objectForKey:@"MCPDBReturnCode"] integerValue];
-
-      if (MCPDBReturnOK == theIdCheckCode) {
-         theCheckCode = [self updateInDB];
-      }
-      else {
-         theCheckCode = MCPDBReturnNoKey;
-      }
-   }
-// Return proper code:
-   return theCheckCode;
-}
-
-
-- (MCPDBReturnCode) deleteInDB
-/*" Uses the connection to delete the object from the DB. In this process the autoGenerated attributes are set to null.
-   If the primary key is not completely set, this method calls checkDBId... method to try to complete it
-   (if the identityAttributes of the class description is not empty)."*/
-{
-   NSArray                 *theKeyAttributes = [classDescription primaryKeyAttributes];
-   NSArray                 *theAttributes = [classDescription attributes];
-   NSUInteger                i;
-//   NSMutableDictionary     *theKeyValue = [NSMutableDictionary dictionary];
-   NSInteger                     theCheckCode = MCPDBReturnOK;
-   MCPConnection     *theConnection = [self connection];
-   
-   if (! theConnection) {
-      return MCPDBReturnNoConnection;
-   }
-// Get the value of the primary key:
-   for (i=0; [theKeyAttributes count] != i; ++i) {
-      id       theValue = [self valueForKey:[(MCPAttribute*) [theKeyAttributes objectAtIndex:i] name]];
-      if ((! theValue) || ([theValue isKindOfClass:[NSNumber class]] && (0 == [theValue integerValue]))) {
-         theCheckCode = MCPDBReturnIncompleteKey;
-         break;
-      }
-   }
-// If incomplete, try to find the rest, and perform again:
-   if (MCPDBReturnIncompleteKey == theCheckCode) {
-      if (MCPDBReturnOK == [(NSNumber *)[[self checkDBId] objectForKey:@"MCPDBReturnCode"] integerValue]) {
-         return [self deleteInDB];
-      }
-      else {
-         return MCPDBReturnIncompleteKey;
-      }
-   }
-
-// Perform the deletion from the DB:
-   theCheckCode = [[self class] deleteInDBUsingConnection:theConnection withId:self];
-
-// set the auto-generated attributes to proper values:
-   for (i=0 ; [theAttributes count] != i; ++i) {
-      MCPAttribute      *theAttribute = (MCPAttribute *) [theAttributes objectAtIndex:i];
-      if ([theAttribute autoGenerated]) {
-//         [self setValue:NULL forKey:[theAttribute name]];
-         [self setValue:[self defaultValueForKey:[theAttribute name]] forKey:[theAttribute name]];
-      }
-   }
-   
-// Finished... just have to return the proper value:
-   return theCheckCode;
-}
-
-
-+ (MCPDBReturnCode) deleteInDBUsingConnection:(MCPConnection *) iConnection withId:(id) iId
-/*" Uses the connection to remove from the DB the entry corresponding to the primary key id given by iId.
-   If any part of the primary key is missing, nothing is done."*/
-{
-   NSMutableString            *theQuery = [NSMutableString string];
-   MCPClassDescription        *theClassDescription = (MCPClassDescription *) [NSClassDescription classDescriptionForClass:[self class]];
-   NSArray                    *theKeyAttributes = [theClassDescription primaryKeyAttributes];
-   NSUInteger                   i;
-
-   if (! [iConnection checkConnection]) {
-      return MCPDBReturnNoConnection;
-   }
-// Generate the query:
-   [theQuery appendFormat:@"DELETE FROM %@ WHERE ", [theClassDescription externalName]];
-// Prepare the WHERE STATEMENT:
-   for (i=0; [theKeyAttributes count] != i; ++i) {
-      if (i) {
-         [theQuery appendString:@" AND "];
-      }
-//      [theQuery appendFormat:@"( %@ = %@ )", [(MCPAttribute*)[theKeyAttributes objectAtIndex:i] externalName], [iConnection quoteObject:[iId objectForKey:[(MCPAttribute*)[theKeyAttributes objectAtIndex:i] name]]]];
-      [theQuery appendFormat:@"( %@ = %@ )", [(MCPAttribute*)[theKeyAttributes objectAtIndex:i] externalName], [iConnection quoteObject:[iId valueForKey:[(MCPAttribute*)[theKeyAttributes objectAtIndex:i] name]]]];
-   }
-// Perform the query:
-   [iConnection queryString:theQuery];
-// Return the proper code:
-   i = [iConnection affectedRows];
-   
-   if (1 < i) {
-      return MCPDBReturnMultiple;
-   }
-   if (0 == i) {
-      return MCPDBReturnNone;
-   }
-   return MCPDBReturnOK;
-}
-
-
-#pragma mark Handling realtions
-- (id) getTargetOfRelation:(MCPRelation *) iRelation
-/*" This method is using the information from iRelation to fetch the targe of the relation in the DB.
-
-If iRelation is flagged as a to-one, then the return type is the type of the target object (value might be nil, if the target was not found).
-If iRelation is flagged as a to-many, then the return type is NSArray (and might be empty if no target were found).
-
-In any case this method is first checking that iRelation is starting from the class of self, and that self is connected to the DB.
-Also the returned object is ALWAYS autoreleased before being returned.
-"*/
-{
-	NSMutableString			*query;
-	MCPClassDescription		*destinationDesc;
-	NSArray						*joins;
-	NSArray						*keys;
-	NSArray						*ids;
-	MCPResult					*result;
-	NSUInteger				i;
-	NSDictionary				*theRow;
-	id								theRet;
-
-	if (! iRelation) {
-		NSLog(@"Tried to get the target of a relation... but the relation object is nil");
-	}
-	else {
-//		NSLog(@"Trying to get the target of the realtion : %@", [iRelation descriptionWithLocale:nil]);
-	}
-	if ((! [connection isConnected]) || (! [classDescription isEqual:[iRelation origin]])) { // Error condition.
-		return nil;
-	}
-// Generating the query:
-	destinationDesc = [iRelation destination];
-	keys = [destinationDesc primaryKeyAttributes];
-	joins = [iRelation joins];
-	ids = [destinationDesc identityAttributes];
-	query = [[NSMutableString alloc] initWithString:@"SELECT "];
-	for (i=0; [keys count] != i; ++i) {
-		if (i) {
-			[query appendString:@", "];
-		}
-		[query appendString:[(MCPAttribute *)[keys objectAtIndex:i] externalName]];
-	}
-	[query appendFormat:@" FROM %@ WHERE ", [destinationDesc externalName]];
-	for (i=0; [joins count] != i; ++i) {
-		MCPJoin			*theJoin = (MCPJoin *)[joins objectAtIndex:i];
-		
-		if (i) {
-			[query appendString:@" and "];
-		}
-		[query appendFormat:@"(%@ = %@)", [[theJoin destination] externalName], [connection quoteObject:[self valueForKey:[[theJoin origin] name]]]];
-	}
-//	NSLog(@"in -[MCPObject getTargetOfRelation:%@]; query is %@...", [iRelation descriptionWithLocale:nil], query);
-	[query appendString:[self orderSQLForClassDescription:destinationDesc]];
-//	NSLog(@"in -[MCPObject getTargetOfRelation:%@]; query is %@...", [iRelation descriptionWithLocale:nil], query);
-/*
-	[query appendString:@" ORDER BY "];
-	for (i=0; [ids count] != i; ++i) { // Generating the order :
-		if (i) {
-			[query appendString:@", "];
-		}
-		[query appendString:[(MCPAttribute *)[ids objectAtIndex:i] externalName]];
-	}
-*/
-	result = [connection queryString:query];
-	[query release];
-	
-// Getting the results in proper objects:
-	if ([iRelation isToMany]) { // To-Many relation
-		NSMutableArray				*theArrayRet = [[NSMutableArray alloc] init];
-		
-		theRet = theArrayRet;
-		while (theRow = [result fetchRowAsDictionary]) {
-			MCPObject			*theTarget = [[[destinationDesc representedClass] alloc] init];
-			
-			[theTarget setPrimaryKey:theRow andFetchFromDB:connection];			
-			[theArrayRet insertObject:theTarget  atIndex:[theArrayRet count]];
-			[theTarget release];
-		}
-	}
-	else { // To-One relation
-		theRow = [result fetchRowAsDictionary];
-		if (theRow) {
-			theRet = [[[destinationDesc representedClass] alloc] init];
-			[theRet setPrimaryKey:theRow andFetchFromDB:connection];
-		}
-		else {
-			theRet = nil;
-		}
-	}
-	[theRet autorelease];
-	return theRet;
-}
-
-- (id) getTargetOfRelationNamed:(NSString *) iRelationName
-{
-	MCPRelation		*theRelation = [classDescription relationWithName:iRelationName];
-	return (theRelation) ? [self getTargetOfRelation:theRelation] : nil;
-}
-
-- (MCPDBReturnCode) setTarget:(id) iTarget forRelation:(MCPRelation *) iRelation
-/*" This method will modify the DB content so that the corresponding relation is deleted.
-	If any value corresping to an attribute of self is modified in the DB, then it will update all attributes of self to reflect DB status.
-
-Obviuosly this method is taking care of only to-one relation. It will hence check that iRelation is a to-one relation starting from self.
-Finally, you can use setTarget:nil forRelation:... to 'delete' a previously establlished relation (if the model and DB permit it)."*/
-{
-	NSUInteger		i;
-	MCPObject			*oldTarget;
-
-	if (! [connection isConnected]) {
-		return MCPDBReturnNoConnection;
-	}
-	if (! [classDescription isEqual:[iRelation origin]]) {
-		return MCPDBReturnWrongRelationOrigin;
-	}
-	if ([iRelation isToMany]) {
-		return MCPDBReturnWrongRelationCardinality;
-	}
-	
-	oldTarget = [self getTargetOfRelation:iRelation];
-	if ((oldTarget) && ([iTarget isEqual:oldTarget])) { // No need to change the relation's target.
-		return MCPDBReturnOK;
-	}
-	for (i=0; [iRelation countOfJoins] != i; ++i) {
-		MCPJoin		*theJoin = [iRelation objectInJoinsAtIndex:i];
-
-		if (([[theJoin origin] isPartOfKey]) && (![[theJoin destination] isPartOfKey])) { // Will change the destination...
-			[iTarget setValue:[self valueForKey:[[theJoin origin] name]] forKey:[[theJoin destination] name]];
-			[oldTarget setValue:[oldTarget defaultValueForKey:[[theJoin destination] name]] forKey:[[theJoin destination] name]];
-		}
-		else { // Will change the origin
-			[self setValue:[iTarget valueForKey:[[theJoin destination] name]] forKey:[[theJoin origin] name]];
-		}
-	}
-	if ([iRelation ownsDestination]) { 
-		[oldTarget deleteInDB];
-	}		
-	return MCPDBReturnOK;
-}
-
-- (MCPDBReturnCode) setTarget:(id) iTarget forRelationNamed:(NSString *) iRelationName
-{
-	MCPRelation		*theRelation = [classDescription relationWithName:iRelationName];
-	return (theRelation) ? [self setTarget:iTarget forRelation:theRelation] : MCPDBReturnNoSuchRelation;
-}
-
-- (NSUInteger) countTargetForRelation:(MCPRelation *) iRelation
-{
-	NSMutableString			*theQuery;
-	NSUInteger				i;
-	NSArray						*theJoinArray;
-	MCPResult					*theResult;
-	NSDictionary				*theRow;
-	
-	if ((! [connection isConnected]) || (! [classDescription isEqual:[iRelation origin]])){
-		return 0;
-	}
-	theJoinArray = [iRelation joins];
-	theQuery = [[NSMutableString alloc] initWithFormat:@"SELECT COUNT(1) FROM %@ WHERE ", [[iRelation destination] externalName]];
-	for (i=0; [theJoinArray count] != i; ++i) {
-		MCPJoin			*theJoin = (MCPJoin *)[theJoinArray objectAtIndex:i];
-		if (i) {
-			[theQuery appendString:@" AND "];
-		}
-		[theQuery appendFormat:@"( %@ = %@ )", [[theJoin destination] externalName], [connection quoteObject:[self valueForKey:[[theJoin origin] name]]]];
-	}
-	theResult = [connection queryString:theQuery];
-	[theQuery release];
-	theRow = [theResult fetchRowAsDictionary];
-	return [(NSNumber *)[theRow objectForKey:@"COUNT(1)"] unsignedIntegerValue];
-}
-
-- (NSUInteger) countTargetForRelationNamed:(NSString *) iRelationName
-{
-	MCPRelation		*theRelation = [classDescription relationWithName:iRelationName];
-	return (theRelation) ? [self countTargetForRelation:theRelation] : 0;
-}
-
-
-- (MCPObject *) getTargetOfRelation:(MCPRelation *) iRelation atIndex:(NSUInteger) iIndex
-/*" This method will return the specific object which is the iIndex'th object of th relation (after ordering the object using the destination identity).
-
-This method (like other assuming order in the relation targets) will be doubtfull if the class does NOT have a single identity attribute."*/
-{
-	NSMutableString			*query;
-	MCPClassDescription		*destinationDesc;
-	NSArray					*joins;
-	NSArray					*keys;
-	NSArray					*ids;
-	MCPResult				*result;
-	NSUInteger				i;
-	NSDictionary			*theRow;
-	MCPObject				*theRet;
-	
-	if (! iRelation) {
-		NSLog(@"Tried to get the target of a relation... but the relation object is nil");
-	}
-	else {
-//		NSLog(@"Trying to get the target of the realtion : %@", [iRelation descriptionWithLocale:nil]);
-	}
-	if ((! [connection isConnected]) || (! [classDescription isEqual:[iRelation origin]])) { // Error condition.
-		return nil;
-	}
-	if (! [iRelation isToMany]) {
-		NSLog(@"Tried to use the -[MCPObject getTargetOfRelation:atIndex:] on a to-one relation... this does NOT works!!! You should use -[MCPObject getTargetOfRelation:] instead!!!");
-		return [self getTargetOfRelation:iRelation];
-	}
-// Generating the query:
-	destinationDesc = [iRelation destination];
-	keys = [destinationDesc primaryKeyAttributes];
-	joins = [iRelation joins];
-	ids = [destinationDesc identityAttributes];
-	query = [[NSMutableString alloc] initWithString:@"SELECT "];
-	for (i=0; [keys count] != i; ++i) {
-		if (i) {
-			[query appendString:@", "];
-		}
-		[query appendString:[(MCPAttribute *)[keys objectAtIndex:i] externalName]];
-	}
-	[query appendFormat:@" FROM %@ WHERE ", [destinationDesc externalName]];
-	for (i=0; [joins count] != i; ++i) {
-		MCPJoin			*theJoin = (MCPJoin *)[joins objectAtIndex:i];
-		
-		if (i) {
-			[query appendString:@" and "];
-		}
-		[query appendFormat:@"(%@ = %@)", [[theJoin destination] externalName], [connection quoteObject:[self valueForKey:[[theJoin origin] name]]]];
-	}
-	[query appendString:[self orderSQLForClassDescription:destinationDesc]];
-/*
-	[query appendString:@" ORDER BY "];
-	for (i=0; [ids count] != i; ++i) { // Generating the order :
-		if (i) {
-			[query appendString:@", "];
-		}
-		[query appendString:[(MCPAttribute *)[ids objectAtIndex:i] externalName]];
-	}
-*/
-	[query appendFormat:@" LIMIT 1 OFFSET %ld", iIndex];
-	result = [connection queryString:query];
-	[query release];
-	
-// Getting the results in proper objects:
-	theRow = [result fetchRowAsDictionary];
-	if (theRow) {
-		theRet = (MCPObject *)[[[destinationDesc representedClass] alloc] init];
-		[theRet setPrimaryKey:theRow andFetchFromDB:connection];
-		[theRet autorelease];
-	}
-	else {
-		theRet = nil;
-	}
-	return theRet;
-}
-
-- (MCPObject *) getTargetOfRelationNamed:(NSString *) iRelationName atIndex:(NSUInteger) iIndex
-/*"This is the equivalent of the getTargetOfRelation:atIndex:, but giving a relation name instead of the MCPRelation object itself."*/
-{
-	MCPRelation		*theRelation = [classDescription relationWithName:iRelationName];
-	return (theRelation) ? [self getTargetOfRelation:theRelation atIndex:iIndex]: nil;
-}
-
-- (MCPDBReturnCode) addTarget:(MCPObject *) iTarget toRelation:(MCPRelation *) iRelation
-/*" This method will modify the DB content so that the corresponding relation is added.
-If any value corresping to an attribute of self i modified in the DB, then it will update all attributes of self to reflect DB status.
-
-Obviuosly this method is taking care of only to-many relation. It will hence check that iRelation is a to-many relation starting from self."*/
-{
-	NSArray					*joins;
-	NSUInteger			i;
-	NSDictionary			*saveReturn;
-
-	if (! [connection isConnected]) {
-		return MCPDBReturnNoConnection;
-	}
-	if (! [classDescription isEqual:[iRelation origin]]) {
-		return MCPDBReturnWrongRelationOrigin;
-	}
-	if (! [iRelation isToMany]) {
-		return MCPDBReturnWrongRelationCardinality;
-	}
-	joins = [iRelation joins];
-	for (i=0; [joins count] != i; ++i) { // Will change only values of iTarget, because it is a to-many relation.
-		MCPJoin		*join = (MCPJoin *)[joins objectAtIndex:i];
-
-		[iTarget setValue:[self valueForKey:[[join origin] name]] forKey:[[join destination] name]];
-	}
-	if (! [[iTarget connection] isConnected]) {
-		[iTarget setConnection:connection];
-	}
-	saveReturn = [iTarget saveInDB];
-	return (MCPDBReturnCode)[(NSNumber *)[saveReturn objectForKey:@"MCPDBReturnCode"] unsignedIntegerValue];
-}
-
-- (MCPDBReturnCode) addTarget:(MCPObject *) iTarget toRelationNamed:(NSString *) iRelationName
-{
-	MCPRelation		*theRelation = [classDescription relationWithName:iRelationName];
-	return (theRelation) ? [self addTarget:iTarget toRelation:theRelation] : MCPDBReturnNoSuchRelation;	
-}
-
-- (MCPDBReturnCode) removeTarget:(MCPObject *) iTarget toRelation:(MCPRelation *) iRelation
-/*" This method will modify the DB content so that the corresponding relation is removed.
-If any value corresping to an attribute of self i modified in the DB, then it will update all attributes of self to reflect DB status.
-
-Obviuosly this method is taking care of only to-many relation. It will hence check that iRelation is a to-many relation starting from self."*/
-{
-	NSArray					*joins;
-	NSUInteger			i;
-//	NSDictionary			*saveReturn;
-	BOOL						targetIsTarget  = YES;
-	MCPDBReturnCode		returnCode;
-
-	if (! [connection isConnected]) {
-		return MCPDBReturnNoConnection;
-	}
-	if (! [classDescription isEqual:[iRelation origin]]) {
-		return MCPDBReturnWrongRelationOrigin;
-	}
-	if (! [iRelation isToMany]) {
-		return MCPDBReturnWrongRelationCardinality;
-	}
-	joins = [iRelation joins];
-	for (i=0; [joins count] != i; ++i) {
-		MCPJoin			*join = (MCPJoin *)[joins objectAtIndex:i];
-		targetIsTarget = targetIsTarget && [[iTarget valueForKey:[[join destination] name]] isEqual:[self valueForKey:[[join origin] name]]];
-	}
-	if (! targetIsTarget) {
-		return MCPDBReturnNotTarget;
-	}
-	if ([iRelation ownsDestination]) { // just delete the target from the DB.
-		returnCode = [iTarget deleteInDB];
-	}
-	for (i=0; [joins count] != i; ++i) { // Put all the destination to default...
-		MCPJoin			*join = (MCPJoin *)[joins objectAtIndex:i];
-
-		[iTarget setValue:[[join destination] defaultValue] forKey:[[join destination] name]];
-	}
-	if (! [iRelation ownsDestination]) {
-		returnCode = [(NSNumber *)[[iTarget saveInDB] objectForKey:@"MCPDBReturnCode"] unsignedIntegerValue];
-	}
-	return returnCode;
-}
-
-- (MCPDBReturnCode) removeTarget:(MCPObject *) iTarget toRelationNamed:(NSString *) iRelationName
-{
-	MCPRelation		*theRelation = [classDescription relationWithName:iRelationName];
-	return (theRelation) ? [self removeTarget:iTarget toRelation:theRelation] : MCPDBReturnNoSuchRelation;	
-}
-
-- (MCPDBReturnCode) removeTargetToRelation:(MCPRelation *) iRelation atIndex:(NSUInteger) iIndex
-/*" This method will use an index t first query the object that it should remove from the relation, then uses the -[MCPObject removeTarget:toRelation:]
-	method to remove the object from the relation. If the index is out of bound (the returned object is nil), it will return MCPDBReturnNone, to signal
-	there was no object with this index in the relation."*/
-{
-	MCPObject		*target;
-	
-	if (! [connection isConnected]) {
-		return MCPDBReturnNoConnection;
-	}
-	if (! [classDescription isEqual:[iRelation origin]]) {
-		return MCPDBReturnWrongRelationOrigin;
-	}
-	if (! [iRelation isToMany]) {
-		return MCPDBReturnWrongRelationCardinality;
-	}
-	target = [self getTargetOfRelation:iRelation atIndex:iIndex];
-	if (target) {
-		return [self removeTarget:target toRelation:iRelation];
-	}
-	else {
-		return MCPDBReturnNone;
-	}
-}
-
-- (MCPDBReturnCode) removeTargetToRelationNamed:(NSString *) iRelationName atIndex:(NSUInteger) iIndex
-{
-	MCPRelation		*theRelation = [classDescription relationWithName:iRelationName];
-	return (theRelation) ? [self removeTargetToRelation:theRelation atIndex:iIndex] : MCPDBReturnNoSuchRelation;
-}
-
-- (NSUInteger) indexOfTarget:(MCPObject *) iTarget inRelation:(MCPRelation *) iRelation
-/*" Returns the index of the target object within the relation. Return NSNotFound if the objkect is NOT in the relation!!"*/
-{
-	NSMutableString		*query;
-	NSArray					*joins;
-	NSArray					*keys;
-	NSArray					*ids;
-	NSUInteger			i;
-	MCPResult				*result;
-	NSDictionary			*row;
-	NSMutableDictionary	*targetKey;
-	BOOL						targetIsTarget = YES;
-
-	if ((! [connection isConnected]) || (! [classDescription isEqual:[iRelation origin]]) || (! [iRelation isToMany])) { // Checking the realtion object.
-		return NSNotFound;
-	}
-	query = [[NSMutableString alloc] initWithString:@"SELECT "];
-	joins = [iRelation joins];
-//	keys = [[iRelation destination] attributeKeys];
-	keys = [[iRelation destination] primaryKeyAttributes];
-	ids = [[iRelation destination] identityAttributes];
-	for (i=0; [keys count] != i; ++i) {
-		if (i) {
-			[query appendString:@", "];
-		}
-		[query appendString:[(MCPAttribute *)[keys objectAtIndex:i] externalName]];
-	}
-	[query appendFormat:@"FROM %@ WHERE ", [[iRelation destination] externalName]];
-	for (i=0; [joins count] != i; ++i) {
-		MCPJoin			*join = (MCPJoin *)[joins objectAtIndex:i];
-
-		targetIsTarget = targetIsTarget && [[iTarget valueForKey:[[join destination] name]] isEqual:[self valueForKey:[[join origin] name]]];
-		if (i) {
-			[query appendString:@" AND "];
-		}
-		[query appendFormat:@"( %@ = %@ )", [[join destination] externalName], [connection quoteObject:[self valueForKey:[[join origin] name]]]];
-	}
-	if (! targetIsTarget) { // Checking that iTarget belongs to the relation.
-		[query release];
-		return NSNotFound;
-	}
-	[query appendString:[self orderSQLForClassDescription:[iRelation destination]]];
-/*
-	[query appendString:@" ORDER BY "];
-	for (i=0; [ids count] != i; ++i) {
-		if (i) {
-			[query appendString:@", "];
-		}
-		[query appendString:[(MCPAttribute *)[ids objectAtIndex:i] externalName]];
-	}
-*/
-	targetKey = [[NSMutableDictionary alloc] init];
-	for (i=0; [keys count] != i; ++i) { // Setting the targetKey to the row that should gives the target.
-		MCPAttribute		*attribute = (MCPAttribute *)[keys objectAtIndex:i];
-
-		[targetKey setObject:[iTarget valueForKey:[attribute name]] forKey:[attribute externalName]];
-	}
-	result = [connection queryString:query];
-	[query release];
-	i = 0;
-	while (row = [result fetchRowAsDictionary]) {
-		if ([targetKey isEqualToDictionary:row]) { // We have found the proper object return i (after cleaning up);
-			[targetKey release];
-			return i;
-		}
-		++i;
-	}
-	return NSNotFound;
-}
-
-- (NSUInteger) indexOfTarget:(MCPObject *) iTarget inRelationNamed:(NSString *) iRelationName
-/*" The equivalent of -[MCPObject indexOfTarget:inRelation:] but using relation name instead of a MCPRelation
-object. Indeed after getting the MCPRelation object corresponding to the name, this method will only return
-the result of the corresponding call to -[MCPObject indexOfTarget:inRelation:]."*/
-{
-	MCPRelation		*theRelation = [classDescription relationWithName:iRelationName];
-	return (theRelation) ? [self indexOfTarget:iTarget inRelation:theRelation] : NSNotFound;
-}
-
-#pragma mark Utility methods
-- (id) defaultValueForKey:(NSString *) iKey
-/*" This method will return the default value (object) for the given key."*/
-{
-   MCPAttribute      *theAttribute = [classDescription attributeWithName:iKey];
-   
-   if ([theAttribute allowsNull]) {
-//      return [NSNull null];
-      return nil;
-   }
-   else {
-      Class          theAttrClass = [theAttribute valueClass];
-      id             theRet;
- 
-      if ([theAttrClass isSubclassOfClass:[NSNumber class]]) {
-         return [NSNumber numberWithInteger:0];
-      }
-      theRet = [[[theAttrClass alloc] init] autorelease];
-      if (nil == theRet) {
-         NSLog(@"in MCPObject defaultValueForKey:%@ , for object of class %@, (attribute of class %@) the return value will be nil!!!", iKey, [self className], theAttrClass);
-      }
-      return theRet;
-   }
-}
-
-
-- (NSDictionary *) primaryKey
-/*" Returns a dictionary with the values of the primary key. "*/
-{
-   NSMutableDictionary     *theRet = [NSMutableDictionary dictionary];
-   NSArray                 *theIdAttr = [classDescription primaryKeyAttributes];
-   NSUInteger                i;
-   
-   for (i=0; [theIdAttr count] != i; ++i) {
-      NSString       *theKey = [(MCPAttribute *)[theIdAttr objectAtIndex:i] name];
-      
-      if ([self valueForKey:theKey]) {
-         [theRet setObject:[self valueForKey:theKey] forKey:theKey];
-      }
-      else {
-         [theRet setObject:[NSNull null] forKey:theKey];
-      }
-   }
-   return [NSDictionary dictionaryWithDictionary:theRet];
-}
-
-#pragma mark Testing equality (VERY important for relation management)
-- (BOOL) isEqual:(id) iObject
-{
-	NSArray					*theIdAttr;
-	NSUInteger			i;
-	BOOL						theRet;
-
-	if (self == iObject) {
-		return YES;
-	}
-	if ([self class] != [iObject class]) {
-		return NO;
-	}
-	theIdAttr = [classDescription identityAttributes];
-	for (i = 0; [theIdAttr count] != i; ++i) {
-		MCPAttribute		*theAttr = [theIdAttr objectAtIndex:i];
-
-		theRet = theRet && [[self valueForKey:[theAttr name]] isEqual:[iObject valueForKey:[theAttr name]]];
-	}
-	return theRet;
-}
-
-
-#pragma mark Output
-- (NSString *) description
-{
-	return [self descriptionWithLocale:nil];
-}
-
-- (NSString *) descriptionWithLocale:(NSDictionary *) locale
-{
-	NSMutableString *theOutput = [NSMutableString string];
-	NSUInteger		i;
-	NSArray			*theAttributes = [classDescription attributes];
-	BOOL			trunc = [MCPConnection truncateLongField];
-
-	[theOutput appendFormat:@"MCPObject subclass : %@\n", [self className]];
-	
-	for (i = 0; [theAttributes count] != i; ++i) 
-	{
-		MCPAttribute *theAttribute = (MCPAttribute *) [theAttributes objectAtIndex:i];
-		id theValue = [self valueForKey:[theAttribute name]];
-
-		if (trunc) {
-			if (([theValue isKindOfClass:[NSString class]]) && (kLengthOfTruncationForLog < [(NSString *)theValue length])) {
-				theValue = [theValue substringToIndex:kLengthOfTruncationForLog];
-			}
-			else if (([theValue isKindOfClass:[NSData class]]) && (kLengthOfTruncationForLog < [(NSData *)theValue length])) {
-				theValue = [NSData dataWithBytes:[theValue bytes] length:kLengthOfTruncationForLog];
-			}
-		}
-		
-		[theOutput appendFormat:@"\tAttribute %ld : name = %@, value = %@\n", i, [theAttribute name], theValue];
-	}
-	
-	[theOutput appendString:@"\n"];
-	
-	return theOutput;
-}
-
-#pragma mark Ordering the array for relations
-- (NSString *) orderSQLForClassDescription:(MCPClassDescription *) iClassDescription
-{
-	NSMutableArray			*theAttributes = [[NSMutableArray alloc] initWithArray:[iClassDescription identityAttributes]];
-	NSMutableString		*theReturn = [NSMutableString string];
-	NSUInteger			i;
-
-	for (i = 0; [[iClassDescription primaryKeyAttributes] count] != i; ++i) {
-		[theAttributes insertObject:[[iClassDescription primaryKeyAttributes] objectAtIndex:i] atIndex:[theAttributes count]];
-	}
-	for (i = 0; [theAttributes count] != i; ++i) {
-		if (i) {
-			[theReturn appendString:@", "];
-		}
-		else {
-			[theReturn appendString:@" ORDER BY "];
-		}
-		[theReturn appendString:[(MCPAttribute *)[theAttributes objectAtIndex:i] externalName]];
-	}
-	return theReturn;
-}
-
-#pragma mark Anti-crash method...
-- (void) setNilValueForKey:(NSString *) iKey
-{
-   NSLog(@"Try to set %@ to nil .... not possible, will set it to zero instead...", iKey);
-   [self setValue:[NSNumber numberWithInteger:0] forKey:iKey];
-}
-
-@end