iPad Multiple predicates in various tableviews

Discussion in 'iPad' started by jsanto, Feb 11, 2013.

  1. macrumors newbie

    Jan 4, 2013
    I just can´t stop searching and reading about the "changing of the predicates" but i still don´t know how to resolve my problem, so...what i have is:

    1 - Several tableviews with various cells and each cell has multiple textfields.

    2 - The user presses one of these textfields and a tableview(inside a popover) appears.

    3 - this popoverTableview has all the core data "work" and it is suppose to provide data to insert in the pressed textfields.

    4 - Everything works fine...EXCEPT the fact that i need the predicate to change every time the user passes for example from tableview1 to tableview2.

    5 - Below is my NSFetchedResultsController method that is inside my popoverTableview and i have tried numerous approaches like: "if´s" ; "switches" ; also point to the textfield tag in the tableviews and nothing. I think i don´t need to set the cache to nil since it is already set to nil...also tried deleting the: if (_fetchedResultsController != nil) return _fetchedResultsController;

    And nothing!!!, what do i need to understand? What i´m not getting? i´m losing days on this one.HELP!

    - (NSFetchedResultsController *)fetchedResultsController
    if (_fetchedResultsController != nil)
    return _fetchedResultsController;

    NSFetchRequest *fetchRequestList = [[NSFetchRequest alloc] init];
    NSEntityDescription *entityList = [NSEntityDescription entityForName:mad:"List" inManagedObjectContext:self.managedObjectContext];
    [fetchRequestLista setEntity:entityList];

    TableViewOne *table1 = [[Cobertura alloc]init];
    TableViewTwo *table2 = [[Cobertura alloc]init];

    if (table1 textFieldShouldBeginEditing:table1.textFieldPressed)
    fetchRequestList.predicate = [NSPredicate predicateWithFormat:mad:"%K IN %@", @"reference", arrayTableview1];

    if (table2 textFieldShouldBeginEditing:table2.textFieldPressed)
    fetchRequestList.predicate = [NSPredicate predicateWithFormat:mad:"%K IN %@", @"reference", arrayTableview2];

    NSSortDescriptor *cellTitle = [[NSSortDescriptor alloc] initWithKey:mad:"reference" ascending:YES];
    NSArray *sortDescriptors = [[NSArray alloc] initWithObjects:cellTitle, nil];
    [fetchRequestLista setSortDescriptors:sortDescriptors];

    _fetchedResultsController = [[NSFetchedResultsController alloc] initWithFetchRequest:fetchRequestLista managedObjectContext:self.managedObjectContext sectionNameKeyPath:mad:"referencia" cacheName:nil];
    _fetchedResultsController.delegate = self;
    self.fetchedResultsController = _fetchedResultsController;

    return _fetchedResultsController;

    Thanks in advance

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