filteredArrayUsingPredicate doesn't filter data

Question

I am developing iOS app, in which i have searchBar.

What i want is,

when user types s in the searchBar, i want to get all the Merchant_Name who starting with letter s from my array

Here is my code snippet i have tried but it is not working,

My arr contains:

 arr at index 0 = {
        "Merchant_Id" = 1261;
        "Merchant_Name" = "Magazine Mall";
        "Merchant_Url" = "magazine-mall";
    },
     arr at index 1 =   {
        "Merchant_Id" = 1262;
        "Merchant_Name" = MakeMyTrip;
        "Merchant_Url" = makemytrip;
    },
   arr at index 2 =     {
        "Merchant_Id" = 1263;
        "Merchant_Name" = Travelguru;
        "Merchant_Url" = travelguru;
    },
    arr at index 3 =    {
        "Merchant_Id" = 1266;
        "Merchant_Name" = Travelchacha;
        "Merchant_Url" = travelchacha;
    },
      arr at index 4 =  {
        "Merchant_Id" = 1267;
        "Merchant_Name" = Tradus;
        "Merchant_Url" = tradus;
    },
    arr at index 5 =    {
        "Merchant_Id" = 1268;
        "Merchant_Name" = ToyWorld;
        "Merchant_Url" = toyworld;
    },
     arr at index 6 =   {
        "Merchant_Id" = 1269;
        "Merchant_Name" = Topskin;
        "Merchant_Url" = topskin;
    },
   ....

Code:

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"Merchant_Name LIKE[cd] %@ ",searchText];
NSMutableArray *filter1 =[[NSMutableArray alloc] init];
filter1 = [[arr filteredArrayUsingPredicate:predicate] mutableCopy];
NSLog(@"predicate  = %@ -------  filter=%@",predicate,filter1);

Log Shows:

predicate  = Merchant_Name LIKE[cd] "s" -------  filter=(
)

Please help me, Where i am doing mistake?

Thanks in advance.

http://stackoverflow.com/questions/9509138/ios-sorting-array-of-dictionaries-by-key-of-inner-dictionary-and-showing-respect — codercat, Mar 04 '14 at 07:51

codercat · Accepted Answer · 2014-03-04T08:01:55.257

2

NSPredicate *predicate =[NSPredicate predicateWithFormat:@"name beginswith[c] %@", searchText];

NSMutableArray *filter1 =[[NSMutableArray alloc] init];
filter1 = [[arr filteredArrayUsingPredicate:predicate] mutableCopy];
NSLog(@"predicate  = %@ -------  filter=%@",predicate,filter1);

more understand follow this

https://developer.apple.com/library/mac/documentation/cocoa/conceptual/predicates/Articles/pUsing.html

edited Mar 04 '14 at 08:01

answered Mar 04 '14 at 07:55

codercat

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After doing this how do i filter it ? – Krunal Mar 04 '14 at 07:58

score 1 · Answer 2 · answered Mar 04 '14 at 08:01

Change your LIKE for BeginsWith

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"Merchant_Name beginswith[c] %@ ",searchText];
NSMutableArray *filter1 =[[NSMutableArray alloc] init];
filter1 = [[arr filteredArrayUsingPredicate:predicate] mutableCopy];
NSLog(@"predicate  = %@ -------  filter=%@",predicate,filter1);

Sunny Shah · Answer 3 · 2014-03-04T08:07:58.010

0

[NSPredicate predicateWithFormat:@"Merchant_Name beginswith %@", [searchText uppercaseString]];

edited Mar 04 '14 at 08:07

answered Mar 04 '14 at 07:52

Sunny Shah

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I want only name starting with letter not CONTAINS – Krunal Mar 04 '14 at 07:53
[ANY name LIKE[c] %@] – Sunny Shah Mar 04 '14 at 07:53
After doing this how do i filter it ? – Krunal Mar 04 '14 at 07:58

filteredArrayUsingPredicate doesn't filter data

3 Answers3