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2014/10/15 下午 10:13:59

iphone Programming Glossary: setpredicate

Querying Core Data with Predicates - iPhone

http://stackoverflow.com/questions/1019070/querying-core-data-with-predicates-iphone

predicate NSPredicate predicateWithFormat @ name LIKE @ self.searchBar.text fetchedResultsController.fetchRequest setPredicate predicate else NSPredicate predicate NSPredicate predicateWithFormat @ All fetchedResultsController.fetchRequest setPredicate.. predicate else NSPredicate predicate NSPredicate predicateWithFormat @ All fetchedResultsController.fetchRequest setPredicate predicate NSError error nil if self fetchedResultsController performFetch error Handle error NSLog @ Unresolved error @..

How do i avoid running out of memory when performing a task on every item of core data?

http://stackoverflow.com/questions/12448545/how-do-i-avoid-running-out-of-memory-when-performing-a-task-on-every-item-of-cor

fetchRequestWithEntityName @ Entry NSPredicate predicate NSPredicate predicateWithFormat @ version @ @ 1.0 request setPredicate predicate NSArray results AppDelegate applicationDelegate .managedObjectContext executeFetchRequest request error nil int..

Does CoreData on iPhone support IN predicates?

http://stackoverflow.com/questions/1436032/does-coredata-on-iphone-support-in-predicates

numberWithInt 74 nil NSPredicate aPredicate NSPredicate predicateWithFormat @ type in @ shipTypes fetchRequest setPredicate aPredicate theRecords self.managedObjectContext executeFetchRequest fetchRequest error error 安hen run the executeFetchRequest..

How to setup a predicate for this query

http://stackoverflow.com/questions/1580236/how-to-setup-a-predicate-for-this-query

NSPredicate predicateWithFormat @ SELF.groups IN @ NSArray arrayWithArray employee groups allObjects fetchRequest setPredicate predicate Edit the sort key as appropriate. NSSortDescriptor createDateSortDcptor NSSortDescriptor alloc initWithKey @ createDateTime..

Primary Key behaviour in Core Data iPhone

http://stackoverflow.com/questions/1710526/primary-key-behaviour-in-core-data-iphone

alloc init request setEntity NSEntityDescription entityForName @ Story inManagedObjectContext context request setPredicate NSPredicate predicateWithFormat @ primaryKey d primaryKey NSUInteger count context countForFetchRequest request error nil..

One to Many relationships iPhone - NSPredicate core data query

http://stackoverflow.com/questions/1770646/one-to-many-relationships-iphone-nspredicate-core-data-query

predicateWithFormat @ name @ AND Event.start ' @' AND Event.finish ' @' calender.name start endDate nil request setPredicate predictate ... However i'm getting an exception Terminating app due to uncaught exception 'NSUnknownKeyException' reason..

Core Data “Upsert” from SQLite Database

http://stackoverflow.com/questions/1997212/core-data-upsert-from-sqlite-database

predicateWithSubstitutionVariables NSDictionary dictionaryWithObject someName forKey @ SOME_NAME fetchRequest setPredicate localPredicate NSError fetchError NSArray array managedObjectContext executeFetchRequest fetchRequest error fetchError.. NSDictionary dictionaryWithObject relationshipName forKey @ RELATIONSHIP_NAME fetchRequest setPredicate localPredicate NSError fetchError NSArray array managedObjectContext executeFetchRequest fetchRequest error fetchError..

Core Data pattern: how to efficiently update local info with changes from network?

http://stackoverflow.com/questions/2209228/core-data-pattern-how-to-efficiently-update-local-info-with-changes-from-networ

fetchRequest NSFetchRequest alloc init fetchRequest setEntity self objectEntity my entity cache fetchRequest setPredicate self objectPredicateById objectId predicate cache NSError error nil NSArray fetchedObjects moc executeFetchRequest fetchRequest.. object entity. Then you need to create a predicate that will filter the managed objects using this array. fetchRequest setPredicate NSPredicate predicateWithFormat @ objectID IN @ objectIDs Of course objectIDs could be anything that you can use to identify...

Core data, sorting one-to-many child objects

http://stackoverflow.com/questions/2524284/core-data-sorting-one-to-many-child-objects

request setSortDescriptors NSArray initWithObject NSSortDescriptor alloc initWithKey @ firstName ascending YES request setPredicate NSPredicate predicateWithFormat @ parent @ parent Obviously your entity and attribute names may be different. In the last..

iPhone SDK Core Data: Fetch all entities with a nil relationship?

http://stackoverflow.com/questions/2745994/iphone-sdk-core-data-fetch-all-entities-with-a-nil-relationship

fetchRequest setFetchBatchSize 20 NSPredicate predicate NSPredicate predicateWithFormat @ author nil fetchRequest setPredicate predicate NSSortDescriptor sortDescriptor NSSortDescriptor alloc initWithKey @ name ascending NO NSArray sortDescriptors..

NSFetchedResultsController refresh refetch?

http://stackoverflow.com/questions/3399012/nsfetchedresultscontroller-refresh-refetch

nil if showAll NO if isXSelected NO NSPredicate predicate NSPredicate predicateWithFormat @ isFirst TRUE fetchRequest setPredicate predicate if isXSelected YES NSPredicate predicate NSPredicate predicateWithFormat @ isFirst FALSE fetchRequest setPredicate.. predicate if isXSelected YES NSPredicate predicate NSPredicate predicateWithFormat @ isFirst FALSE fetchRequest setPredicate predicate fetchRequest setSortDescriptors sortDescriptors fetchRequest setEntity entity fetchRequest setFetchBatchSize.. in an application Assuming these exist NSPredicate predicate NSString cacheName fetchedResultsController fetchRequest setPredicate predicate NSFetchedResultsController deleteCacheWithName cacheName NSError error nil fetchedResultsController performFetch..

How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar

http://stackoverflow.com/questions/4471289/how-to-filter-nsfetchedresultscontroller-coredata-with-uisearchdisplaycontroll

nil else filterPredicate NSCompoundPredicate orPredicateWithSubpredicates predicateArray fetchRequest setPredicate filterPredicate Set the batch size to a suitable number. fetchRequest setFetchBatchSize 20 fetchRequest setSortDescriptors..

How to get Core Data object from specific Object ID?

http://stackoverflow.com/questions/5035057/how-to-get-core-data-object-from-specific-object-id

setEntity entity NSPredicate predicate NSPredicate predicateWithFormat @ objectID @ myObjectID fetchRequest setPredicate predicate However I'd like to do it in a way that does not initiate its own fetch request. Any ideas iphone ios core data..

Removing a specific entry/row from Core-Data

http://stackoverflow.com/questions/6524876/removing-a-specific-entry-row-from-core-data

alloc init fetch setEntity productEntity NSPredicate p NSPredicate predicateWithFormat @ pid @ soughtPid fetch setPredicate p ... add sorts if you want them NSError fetchError NSArray fetchedProducts self.moc executeFetchRequest fetch error fetchError..

iCloud basics and code sample [closed]

http://stackoverflow.com/questions/7795629/icloud-basics-and-code-sample

PREDICATE NSPredicate pred NSPredicate predicateWithFormat @ K @ NSMetadataItemFSNameKey @ text.txt query setPredicate pred FINISHED NSNotificationCenter defaultCenter addObserver self selector @selector queryDidFinishGathering name NSMetadataQueryDidFinishGatheringNotification..