I am trying to sort my array while using NSPredicate.. I have read other places that possibly using NSSortDescriptor could be an option. Having some trouble figuring this out.
Basically, I have a database of locations for an MKMapView, and when the detail disclosure button on each annotation is开发者_开发技巧 tapped, it brings up more information on the location, for exampl
To simplify: There are 3 columns in a table named cards. id packTitle term id is a column - integers from 0.....100
I\'m scratching my head on this one. I have a work around, but I don\'t understand it so that doesn\'t count. What I want to do is for the entity (in this case a开发者_如何转开发 \"Photo\" lets say),
I have an Entity with some Attribute. I have my tabes already populates(SQLite table) In one Attribute (i\'ll call Attribute1) i have a bool value, changing during use of my app.
I am currently struggling with my implementation of core data to get a \"best of each category\" effect - I have already tried to figure out a solution quite a long time now and I just don\'t get find
I have a data model that has 2 entities Person and Photo, they have have Attributes named name how can I be sure when using a NSPredicate that I will fetch or evaluate information from the correct ent
In my iPhone app, I\'m reading a csv file. The relevant line is this: NSString *countrycode = [[[NSString alloc] initWithFormat:@\"%@\", [arr objectAtIndex:2]]
I开发者_运维百科 have two entities in my data model: Details and Lookup. I need find all Details objects related to a specific Lookup object that has specific attribute value and then return those Det
Hi, I am working on an iphone app, and I have to fetch out data from sqlite table with the help of core data NSPredicate object.
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