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POFetch distinct data from Core data alongwith descending order?
 

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    <p>I creating chat app in which i save data in core data. I using following entity,</p> <p><img src="https://i.stack.imgur.com/lMq7u.png" alt="enter image description here"></p> <p>I want to fetch data all unique <code>customerno</code> and that data will be descending order of <code>messagedate</code> also contain latest <code>messagetext</code> which send from other <code>cmid</code>. I want to show list <em>like facebook chat message list and smiler view</em>. I trying following code ,</p> <pre><code>-(NSArray *)getAllInstanceMessages{ NSError *error = nil; NSFetchRequest * req = [[NSFetchRequest alloc] init]; NSEntityDescription *entity = [NSEntityDescription entityForName:@"IMDetails" inManagedObjectContext:theManageContext]; [req setPredicate:[NSPredicate predicateWithFormat:@"cmid=%@", theCmID]]; NSDictionary *entityProperties = [entity propertiesByName]; [req setEntity:entity]; [req setReturnsDistinctResults:YES]; [req setResultType:NSDictionaryResultType]; [req setPropertiesToFetch:[NSArray arrayWithObject:[entityProperties objectForKey:@"customerno"]]]; [req setSortDescriptors:[NSArray arrayWithObject:[[NSSortDescriptor alloc] initWithKey:@"messagedate" ascending:NO]]]; NSArray *result = [theManageContext executeFetchRequest:req error:&amp;error]; if(error){ NSLog(@"%s, %@", __FUNCTION__, [error localizedDescription]); return nil; } return result; } </code></pre> <p>the above code given my following output,</p> <pre><code>Printing description of result: &lt;_PFArray 0xa3cda70&gt;( { customerno = CN00001; customerno = CN00002; customerno = CN00003; } ) </code></pre> <p>I want complete data along with this unique numbers, i mean array of dictionary/ManagedObject containing unique data suppose in above CN0001 number but it doesn't contain other attributes values. </p> <p>what i do wrong in code?</p>
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