Databases
StackOverflow2013
Postsdbo
PONSPredicate against NSArray in iphone
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PONSPredicate against NSArray in iphone
    primarykey
    data
    text
    <p>How can I use <code>NSPredicate</code> to filter the values from array ivar against search query ? I manage to use <code>NSPredicate</code> against string ivar. I have one user defined class named as "User" which is used to create User from AddressBook. Here is my code</p> <pre><code> // User Defined Class named as "User" // In User.h @interface User : NSObject { NSString *firstName; NSString *lastName; NSString *company; UIImage *userImage; NSArray *phoneNumberArray; NSArray *emailArray; NSArray *urlArray; NSArray *addressArray; NSString *notes; NSString *dateOfBirth; } // In SearchViewController.m - (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText{ // contactsArray is NSMutableArray contactsArray = [Search searchContactsWithQuery:searchText]; NSLog(@"contactsArray count =&gt; %d",[contactsArray count]); [contactsTableView reloadData]; } // In Search.m +(NSMutableArray*)searchContactsWithQuery:(NSString*)query { NSLog(@"Query =&gt; %@",query); NSMutableArray* predicates=[[NSMutableArray alloc] init]; // Create all predicates NSPredicate * firstNamePredicate = [NSPredicate predicateWithFormat:@"firstName contains %@",query]; [predicates addObject:firstNamePredicate]; NSPredicate * lastNamePredicate = [NSPredicate predicateWithFormat:@"lastName contains %@",query]; [predicates addObject:lastNamePredicate]; NSPredicate * companyPredicate = [NSPredicate predicateWithFormat:@"company contains %@",query]; [predicates addObject:companyPredicate]; // Don't know how to use on array // === START of ARRAY Predicate ==== NSPredicate *phoneNoPredicate = [NSPredicate predicateWithFormat:@"phoneNumberArray IN %@",query]; [predicates addObject:phoneNoPredicate]; NSPredicate *emailPredicate = [NSPredicate predicateWithFormat:@"emailArray contains %@",query]; [predicates addObject:emailPredicate]; NSPredicate *urlPredicate = [NSPredicate predicateWithFormat:@"urlArray contains %@",query]; [predicates addObject:urlPredicate]; NSPredicate *addressPredicate = [NSPredicate predicateWithFormat:@"addressArray contains %@",query]; // === END of ARRAY Predicate ==== NSPredicate *notesPredicate = [NSPredicate predicateWithFormat:@"notes contains %@",query]; [predicates addObject:notesPredicate]; NSPredicate *dobPredicate = [NSPredicate predicateWithFormat:@"dateOfBirth contains %@",query]; [predicates addObject:dobPredicate]; // Add predicates to array NSPredicate *compoundPredicate = [NSCompoundPredicate orPredicateWithSubpredicates:predicates]; NSArray * filteredArray = [APP_DELEGATE.allUsersArray filteredArrayUsingPredicate:compoundPredicate]; return [NSMutableArray arrayWithArray:filteredArray]; } </code></pre> <p>phoneNumberArray,emailArray,urlArray &amp; addressArray are used because user may have multiple entries for phone no , email, address , url like HOME , WORK, iPhone, Other etc. </p> <p>How can I use predicates on array? Any kind of help is appreciated. Thanks</p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USprashant
    1. USiOSAppDev
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. PONSPredicate against NSArray in iphone
      1. This table or related slice is empty.
      1. VTApproveEditSuggestion
    2. VO
      singulars
      1. PONSPredicate against NSArray in iphone
      1. This table or related slice is empty.
      1. VTUpMod
    1. CO`filteredArrayUsingPredicate:` is the right way to go. Is the code above not working? Are you sure that there's a value in the array that matches the predicate?
      singulars
      1. PONSPredicate against NSArray in iphone
      1. USCaleb
    2. COThere are values in array that matches predicate
      singulars
      1. PONSPredicate against NSArray in iphone
      1. USiOSAppDev
    3. COTry simplifying your predicate. Instead of using the compound predicate, try filtering the array with one of your simple predicates. Indeed, you could try applying them each to get 9 separate arrays -- that may give you a clue as to where the problem lies.
      singulars
      1. PONSPredicate against NSArray in iphone
      1. USCaleb
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload