Query Parse containsString make insensitive

Question

I wonder if someone would be able to help. I am trying to search a Parse class for a term using SearchBar. The containsString however is case sensitive and i would like it to be case insensitive. Please see code below;

-(void)filterResults:(NSString *)searchTerm {

[self.searchResults removeAllObjects];
PFQuery *query = [PFQuery queryWithClassName: @"Firefacts"];
[query whereKeyExists:@"Number"];
[query whereKey:@"Number" containsString:searchTerm];
NSArray *results = [query findObjects];
[self.searchResults addObjectsFromArray:results];
}

Any help would be greatly appreciated.

Answer 1

Use Regular Expression (?i) instead ! credit goes to https://stackoverflow.com/a/9655203/2398886 , https://stackoverflow.com/a/9655186/2398886 and http://www.regular-expressions.info/modifiers.html

So replace

[query whereKey:@"Number" containsString:searchTerm];

with

[query whereKey:@"Number" matchesRegex:[NSString stringWithFormat:@"(?i)%@",searchTerm]];

or you can also use

[query whereKey:@"Number" matchesRegex:searchTerm modifiers:@"i"];

Your final code should be :

PFQuery *query = [PFQuery queryWithClassName: @"Firefacts"];
[query whereKeyExists:@"Number"];
[query whereKey:@"Number" matchesRegex:searchTerm modifiers:@"i"];