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POCore Data NSFetchrequest integer
 

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    <p>I have the following scenario. I have an app that handles data by using Core Data. I have an entity called "Brothers" which has 3 attributes: Name, Status, Age.</p> <p>lets say that I have 1 record on my database that has:</p> <pre><code>-Name ==&gt; Joe (String) -Status ==&gt; Married (String) -Age ==&gt; 28 (Integer) </code></pre> <p>I have an UIlabel a UItextfield and a Button. I want to be able to type the name (in this case Joe) on the UItextfield press the button and display the age (in this case 28) in the UILabel. I would also like to store the age value into a variable type integer so I can make some calculations with it later on.</p> <p>below the code that I have inside the button.</p> <pre><code>NSEntityDescription *entitydesc = [NSEntityDescription entityForName:@"Brothers" inManagedObjectContext:context]; NSFetchRequest *request = [[NSFetchRequest alloc]init]; [request setEntity:entitydesc]; NSPredicate *predicate = [NSPredicate predicateWithFormat:@"age %d", [self.age.text integerValue]]; [request setPredicate:predicate]; NSError *error; NSArray *integer = [context executeFetchRequest:request error:&amp;error]; self.displayLabel.text = integer; </code></pre> <p><strong>Update #1</strong></p> <p>I updated the code that i have inside the button and now i am able to search by the name and display the age. I'm still looking into storing the age as an integer into a variable so i can use it later on.</p> <pre><code>NSEntityDescription *entitydesc = [NSEntityDescription entityForName:@"Brothers" inManagedObjectContext:context]; NSFetchRequest *request = [[NSFetchRequest alloc]init]; [request setEntity:entitydesc]; NSPredicate *predicate = [NSPredicate predicateWithFormat:@"firstname like %@", self.firstnameTextField.text]; [request setPredicate:predicate]; NSError *error; NSArray *integer = [context executeFetchRequest:request error:&amp;error]; if(integer.count &lt;= 0){ self.displayLabel.text = @"No records found"; } else { NSString *age; for (NSManagedObject *object in integer) { age = [object valueForKey:@"age"]; } self.displayLabel.text = [NSString stringWithFormat:@"age: %@",age]; } } </code></pre>
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    1. COIf you want to search for the *name*, why do you use a predicate with *age*? - Assigning an NSArray to a text field? - Reading the "Core Data Programming Guide" and "Predicate Programming Guide" might be helpful.
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      1. POCore Data NSFetchrequest integer
      1. USMartin R
    2. COmy mistake. I just fixed it and will edit the code in the post. i was able to display the age on my UILabel when i search by the name. I am still trying to store the age value as an integer into a variable.
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    3. COIf "age" is defined as an Core Data "Integer" attribute, then the value is stored as NSNumber. So `NSNumber *age = [object valueForKey:@"age"]`, which you can convert to a plain integer: `int i = [age intValue]`.
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      1. POCore Data NSFetchrequest integer
      1. USMartin R
 

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