Merge pull request #88 from danielctull/feature/FetchedResultsControl…

…lerMethods

[NEW] Generate fetched results controllers for to-many relationships. (Daniel Tull)

mogenerator.m

@@ -114,6 +114,11 @@ - (NSArray*)noninheritedFetchedProperties {
 		return [[[self fetchedPropertiesByName] allValues]  sortedArrayUsingDescriptors:sortDescriptors];
 	}
 }
+/** @TypeInfo NSAttributeDescription */
+- (NSArray*)indexedNoninheritedAttributes {
+	NSPredicate *predicate = [NSPredicate predicateWithFormat:@"isIndexed == YES"];
+	return [[self noninheritedAttributes] filteredArrayUsingPredicate:predicate];
+}
 
 #pragma mark Fetch Request support
 

templates/machine.h.motemplate

@@ -73,6 +73,15 @@ extern const struct <$managedObjectClassName$>FetchedProperties {<$foreach Fetch
 <$foreach FetchedProperty noninheritedFetchedProperties do$>
 @property (nonatomic, readonly) NSArray *<$FetchedProperty.name$>;
 <$endforeach do$>
+<$if TemplateVar.frc$>
+#if TARGET_OS_IPHONE
+<$foreach Relationship noninheritedRelationships do$>
+<$if Relationship.isToMany$>
+- (NSFetchedResultsController *)new<$Relationship.name.initialCapitalString$>FetchedResultsControllerWithSortDescriptors:(NSArray *)sortDescriptors;
+<$endif$>
+<$endforeach do$>
+#endif
+<$endif$>
 @end
 
 @interface _<$managedObjectClassName$> (CoreDataGeneratedAccessors)

templates/machine.m.motemplate

@@ -189,4 +189,27 @@ const struct <$managedObjectClassName$>FetchedProperties <$managedObjectClassNam
 }
 <$endif$>
 <$endforeach do$>
+<$if TemplateVar.frc$>
+#if TARGET_OS_IPHONE
+<$foreach Relationship noninheritedRelationships do$>
+<$if Relationship.isToMany$>
+- (NSFetchedResultsController *)new<$Relationship.name.initialCapitalString$>FetchedResultsControllerWithSortDescriptors:(NSArray *)sortDescriptors {
+	NSFetchRequest *fetchRequest = [NSFetchRequest new];
+	<$if !TemplateVar.arc$>[fetchRequest autorelease];<$endif$>
+	fetchRequest.entity = [NSEntityDescription entityForName:@"<$Relationship.destinationEntity.name$>" inManagedObjectContext:self.managedObjectContext];
+	fetchRequest.predicate = [NSPredicate predicateWithFormat:@"<$Relationship.inverseRelationship.name$> <$if Relationship.inverseRelationship.isToMany$>CONTAINS<$else$>==<$endif$> %@", self];
+	fetchRequest.sortDescriptors = sortDescriptors;
+	<$if indexedNoninheritedAttributes.@count > 0$>
+	NSArray *indexedIDs = [NSArray arrayWithObjects:<$foreach Attribute indexedNoninheritedAttributes do$>self.<$Attribute.name$>, <$endforeach do$>nil];
+	NSString *cacheName = [NSString stringWithFormat:@"mogenerator.<$managedObjectClassName$>.%@.<$Relationship.name$>.%@", indexedIDs, sortDescriptors];
+	<$endif$>
+	return [[NSFetchedResultsController alloc] initWithFetchRequest:fetchRequest
+											   managedObjectContext:self.managedObjectContext
+												 sectionNameKeyPath:nil
+														  cacheName:<$if indexedNoninheritedAttributes.@count > 0$>cacheName<$else$>nil<$endif$>];
+}
+<$endif$>
+<$endforeach do$>
+#endif
+<$endif$>
 @end