Mantle convert 0 and 1 to BOOL automatically?
github-mantle, ios, objective-c
Solution
Yes, this is handled for you; you don't need to use the mapping transformer.
Mantle internally calls `setValue:forKey:` to set the value. The 0 or 1 will be an `NSNumber`, and `setValue:forKey:` will use the `boolValue` on `NSNumber` to get a value, as your property is declared as a `BOOL`.
This behaviour of Key-Value Coding is described under Scalar and Structure Support.
Problem
Does Mantle already converts int values 0 and 1 in JSON to objective-C BOOL values? I have a model: ``` @interface MyModel : MTLModel @property (nonatomic, readonly) BOOL isValid; @end ``` And lets say JSON is: ``` { is_valid: 0 } OR { is_valid: 1 } ``` I want to know if Mantle would automatically convert `is_valid` into Objective-C BOOL value to do I have to explicity mention the following: ``` + (NSValueTransformer)isValidJSONTransfermer { return [NSValueTransformer mtl_valueMappingTransformerWithDictionary:@{@(0) : @(NO), @(1) : @(YES)}]; } ```