2014/10/15 下午 10:08:23

iphone Programming Glossary: entityname

Core Data: does a fetch have to make a trip to persistent store?

http://stackoverflow.com/questions/13833529/core-data-does-a-fetch-have-to-make-a-trip-to-persistent-store

to make a trip to persistent store Say I do this NSManagedObjectContext context #a managed object context NSString entityName #an entity name# NSFetchRequest requestForAll NSFetchRequest requestWithEntityName entityName NSArray allObj context executeFetchRequest.. object context NSString entityName #an entity name# NSFetchRequest requestForAll NSFetchRequest requestWithEntityName entityName NSArray allObj context executeFetchRequest requestForAll for NSString name in allNamesArray NSFetchRequest requestForOne.. requestForAll for NSString name in allNamesArray NSFetchRequest requestForOne NSFetchRequest requestWithEntityName entityName requestForOne.predicate NSPredicate predicateWithFormat @ name @ name NSArray ObjsWithName context executeFetchRequest requestForOne..

How can you reference child entity name in a predicate for a fetch request of the parent entity?

http://stackoverflow.com/questions/1579337/how-can-you-reference-child-entity-name-in-a-predicate-for-a-fetch-request-of-th

inManagedObjectContext myContext NSPredicate subclassAPredicate NSPredicate predicateWithFormat @ someValue @ entityName @ 100 @ SubclassA NSPredicate subclassBPredicate NSPredicate predicateWithFormat @ someValue @ entityName @ 50 @ SubclassB.. someValue @ entityName @ 100 @ SubclassA NSPredicate subclassBPredicate NSPredicate predicateWithFormat @ someValue @ entityName @ 50 @ SubclassB request.predicate NSCompoundPredicate orPredicateWithSubpredicates NSArray arrayWithObjects subclassAPredicate..

Resolving html entities with NSXMLParser on iPhone

http://stackoverflow.com/questions/2370842/resolving-html-entities-with-nsxmlparser-on-iphone

è html entity. It calls foundCharacters for Bye Bye and then it calls resolveExternalEntityName systemID with an entityName of egrave . In this method i'm just returning the character 癡 trasformed in an NSData the foundCharacters is called again.. YES parser parse NSXMLParser delegate method NSData parser NSXMLParser parser resolveExternalEntityName NSString entityName systemID NSString systemID return entityMap objectForKey entityName dataUsingEncoding NSUTF8StringEncoding Attempts to declare.. parser resolveExternalEntityName NSString entityName systemID NSString systemID return entityMap objectForKey entityName dataUsingEncoding NSUTF8StringEncoding Attempts to declare the entities by prepending the HTML document with ENTITY declarations..

Core data insert new data with existing relationship

http://stackoverflow.com/questions/9293301/core-data-insert-new-data-with-existing-relationship

I try fetch the existing object predicate NSPredicate predicateWithFormat @ userID @ AND rack.rackID @ _userID @ 1 entityName @ RackItem NSArray result self fetchDataWithEntity entityName predicate predicate id object result last object then on the.. @ userID @ AND rack.rackID @ _userID @ 1 entityName @ RackItem NSArray result self fetchDataWithEntity entityName predicate predicate id object result last object then on the setRackItem part I create a new EntityDescription and save.. core data using this function id objectInManagedObjectContextForDictionary NSDictionary dictionary entity NSString entityName managedObject id object insertKey NSArray keys relation BOOL isRelation Recursive method for id key in dictionary..