/*

File: Chef.m

Abstract: The Chef entity (NSManagedObject subclass)

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*/

#import "Chef.h"

#import "Recipe.h"

@implementation Chef 

/**

    Overridden initialize method, used to set up the list of dependent keys

    for notification.  Here we want to ensure the fullName is updated each time

    either the first or last name attributes changes.

*/

+ (void)initialize {

    if ( self == [Chef class] ) {

        [self setKeys:[NSArray arrayWithObjects:@"firstName", @"lastName", nil] triggerChangeNotificationsForDependentKey:@"fullName"];

    }

}

/**

    Returns a predicate to find an object similar to this Chef.  In this case

    we create a predicate to match the names, homepage, and "Iron Chef" value

    of this object.

*/

- (NSPredicate *) predicateForSimilarObject {

    return [NSPredicate predicateWithFormat: @"(lastName == %@) && (firstName == %@) && (homepage == %@) && (isIronChef == %@)",

        [self lastName], [self firstName], [self homepage], [NSNumber numberWithBool:[self isIronChef]]];

}

/**

    Creates a copy of this Chef object in the specified context and store.  This

    is used to copy Chef instances from one store to another (since we cannot

    create cross-store relationships.)

*/

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

    // insert a new Chef first

    Chef *newChef = [NSEntityDescription insertNewObjectForEntityForName:@"Chef" inManagedObjectContext:context];

    if ( store ) {

        [context assignObject:newChef toPersistentStore:store];

    }

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

    [newChef copyAttributesFromObject: self];

    return newChef;

}

/**

    Returns a boolean indicating if the Chef has recipes or not.  In this case

    we simply examine the "recipes" relationship and return YES if the count of

    the related objects is more than zero.

*/

- (BOOL)hasRecipes {

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

}

#pragma mark

#pragma mark Core Data accessors/mutators/validation methods

#pragma mark

- (NSString *)homepage  {

    NSString * tmpValue;

    [self willAccessValueForKey: @"homepage"];

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

    [self didAccessValueForKey: @"homepage"];

    return tmpValue;

}

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

    [self willChangeValueForKey: @"homepage"];

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

    [self didChangeValueForKey: @"homepage"];

}

- (NSString *)fullName {

    return [NSString stringWithFormat:@"%@ %@", [self firstName], [self lastName]];

}

- (NSString *)firstName  {

    NSString * tmpValue;

    [self willAccessValueForKey: @"firstName"];

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

    [self didAccessValueForKey: @"firstName"];

    return tmpValue;

}

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

    [self willChangeValueForKey: @"firstName"];

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

    [self didChangeValueForKey: @"firstName"];

}

- (NSString *)lastName  {

    NSString * tmpValue;

    [self willAccessValueForKey: @"lastName"];

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

    [self didAccessValueForKey: @"lastName"];

    return tmpValue;

}

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

    [self willChangeValueForKey: @"lastName"];

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

    [self didChangeValueForKey: @"lastName"];

}

- (BOOL)isIronChef  {

    NSNumber *tmpValue;

    [self willAccessValueForKey: @"isIronChef"];

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

    [self didAccessValueForKey: @"isIronChef"];

    return (tmpValue!=nil) ? [tmpValue boolValue] : FALSE;

}

- (void)setIsIronChef:(BOOL)value  {

    [self willChangeValueForKey: @"isIronChef"];

    [self setPrimitiveValue: [NSNumber numberWithBool: value] forKey: @"isIronChef"];

    [self didChangeValueForKey: @"isIronChef"];

}

- (void)addRecipesObject:(Recipe *)value {    

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

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

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

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

    [changedObjects release];

}

- (void)removeRecipesObject:(Recipe *)value {

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

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

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

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

    [changedObjects release];

}

@end