/*

File: Measure.m

Abstract: The Measure entity (NSManagedObject subclass)

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*/

#import "Measure.h"

@implementation Measure 

/**

    Returns a predicate to find other measures similar to this one.  In this 

    case we are looking for measures which have the same name and abbreviation;

    the type and displayOrder attributes are not of interest.

*/

- (NSPredicate *) predicateForSimilarObject {

    return [NSPredicate predicateWithFormat: @"(abbreviation == %@) && (name == %@)", [self abbreviation], [self name]];

}

/**

    Creates a copy of this Measure object in the specified context and 

    store.  This is used to copy instances from one store to another (since we 

    cannot create cross-store relationships.)

*/

- (CRManagedObject *) copyToContext: (NSManagedObjectContext *)context andStore:(id)store {

    // insert a new Measure first

    Measure *newMeasure = [NSEntityDescription insertNewObjectForEntityForName:@"Measure" inManagedObjectContext:context];

    if ( store ) {

        [context assignObject:newMeasure toPersistentStore:store];

    }

    // use API on the base class to copy the properties (no relationships to copy)

    [newMeasure copyAttributesFromObject: self];

    return newMeasure;

}

#pragma mark

#pragma mark Core Data accessors/mutators/validation methods

#pragma mark

- (NSString *)abbreviation  {

    NSString * tmpValue;

    [self willAccessValueForKey: @"abbreviation"];

    tmpValue = [self primitiveValueForKey: @"abbreviation"];

    [self didAccessValueForKey: @"abbreviation"];

    return tmpValue;

}

- (void)setAbbreviation:(NSString *)value {

    [self willChangeValueForKey: @"abbreviation"];

    [self setPrimitiveValue: value forKey: @"abbreviation"];

    [self didChangeValueForKey: @"abbreviation"];

}

- (short)displayOrder  {

    NSNumber *tmpValue;

    [self willAccessValueForKey: @"displayOrder"];

    tmpValue = [self primitiveValueForKey: @"displayOrder"];

    [self didAccessValueForKey: @"displayOrder"];

    return (tmpValue!=nil) ? [tmpValue shortValue] : 0;

}

- (void)setDisplayOrder:(short)value  {

    [self willChangeValueForKey: @"displayOrder"];

    [self setPrimitiveValue: [NSNumber numberWithShort: value] forKey: @"displayOrder"];

    [self didChangeValueForKey: @"displayOrder"];

}

- (NSString *)name  {

    NSString * tmpValue;

    [self willAccessValueForKey: @"name"];

    tmpValue = [self primitiveValueForKey: @"name"];

    [self didAccessValueForKey: @"name"];

    return tmpValue;

}

- (void)setName:(NSString *)value  {

    [self willChangeValueForKey: @"name"];

    [self setPrimitiveValue: value forKey: @"name"];

    [self didChangeValueForKey: @"name"];

}

- (short)type  {

    NSNumber *tmpValue;

    [self willAccessValueForKey: @"type"];

    tmpValue = [self primitiveValueForKey: @"type"];

    [self didAccessValueForKey: @"type"];

    return (tmpValue!=nil) ? [tmpValue shortValue] : 0;

}

- (void)setType:(short)value {

    [self willChangeValueForKey: @"type"];

    [self setPrimitiveValue: [NSNumber numberWithShort: value] forKey: @"type"];

    [self didChangeValueForKey: @"type"];

}

- (void)addIngredientsObject:(Ingredient *)value  {

    NSSet *changedObjects = [[NSSet alloc] initWithObjects:&value count:1];

    [self willChangeValueForKey:@"ingredients" withSetMutation:NSKeyValueUnionSetMutation usingObjects:changedObjects];

    [[self primitiveValueForKey: @"ingredients"] addObject: value];

    [self didChangeValueForKey:@"ingredients" withSetMutation:NSKeyValueUnionSetMutation usingObjects:changedObjects];

    [changedObjects release];

}

- (void)removeIngredientsObject:(Ingredient *)value  {

    NSSet *changedObjects = [[NSSet alloc] initWithObjects:&value count:1];

    [self willChangeValueForKey:@"ingredients" withSetMutation:NSKeyValueMinusSetMutation usingObjects:changedObjects];

    [[self primitiveValueForKey: @"ingredients"] removeObject: value];

    [self didChangeValueForKey:@"ingredients" withSetMutation:NSKeyValueMinusSetMutation usingObjects:changedObjects];

    [changedObjects release];

}

- (BOOL)hasIngredients {

    return ( [(NSSet *)[self valueForKey: @"ingredients"] count] > 0 );

}

@end