ios - 带有字符串的 NSPredicate 似乎没有返回结果

Question

func getFetchRequest(#entityName: String, address value: String) -> NSFetchRequest {
    var fetch = NSFetchRequest(entityName: entityName)
    fetch.predicate = NSPredicate(format: "address = %s", value)
    println(fetch)
    return fetch
}

问题是它与 Xcode <6.1 一起工作并停止与 6.1 一起工作。

传递 getFetchRequest(entityName: "Entity", address: "test") 给出以下内容

(
    entity: Entity;
    predicate: (address == "s");
    sortDescriptors: ((null));
    type: NSManagedObjectResultType;
)

Answer 1

Solution found in another answer可能会算这个重复项。

解决方案

NSPredicate(format: "address = %s", value)

应该是:

NSPredicate(format: "address = %@", value)