Implement Query in swift

Question

I want to implement this query in xcode

Select * from people where age >40 and mariageState = false

I can retrive all records but could not narrow my search with the conditions of age and mariagestae

How can I use NSPredicate or NSFetchRequest to implement such query?

vadian · Accepted Answer · 2016-06-05 10:23:21Z

1

It's almost the same syntax

let request = NSFetchRequest(entityName:"people")    
request.predicate = NSPredicate(format: "age > 40 AND mariageState == FALSE")

You can easily add sort descriptors

request.sortDescriptors = [NSSortDescriptor(key: "firstName", ascending: true), 
                           NSSortDescriptor(key: "age", ascending: false)]

edited Jun 5, 2016 at 10:23

answered Jun 5, 2016 at 7:17

vadian

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2 Comments

Milligator Over a year ago

I was thinking of something completely different. My issue is solved. Thank you

Milligator Over a year ago

How can i combine it with sortDescriptor? For example by firstName ascending and age descending.

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