CODEWITHSUNDEEP
iosswift
Arti
Arti

Reputation: 7772

NSPredicate substring in string

I want to show all items where value1 contains value2. I tried this:

let fetchRequest = NSFetchRequest(entityName: "Product")
fetchRequest.predicate = NSPredicate(format: "value1 CONTAINS[cd] value2")

value1, value2 - current object values, it is not variables

But i got error:

Unable to parse the format string

Why it doesn't allow me to do this ?

Upvotes: 2

Views: 965

Answers (1)

Oleg Gordiichuk
Oleg Gordiichuk

Reputation: 15512

Try to use this predicate: 

 let predicate = NSPredicate(format: "value1 CONTAINS[cd] %@", value2)

As were investigated during communication with developer. Issue is in data that is saved to the database. In his case data is saved with quotes ("") and NSPredicate(format: "value1 CONTAINS[cd] %@", value2) is working with errors due to that issue.

Upvotes: 3

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