Open Radar

 
17-Apr-2013 03:44 PM Tom Harrington:
Summary:

Xcode truncates non-integer values in validation predicates for decimal attributes in Core Data models.

Steps to Reproduce:

1. Create a Core Data model that includes an entity with a decimal attribute
2. Add non-integer min and max values for the decimal attribute. For example, min = -4.5 and max = 4.9.

Expected Results:

Since decimal values can hold non-integer values, validation would use the entered non-integer values.

Actual Results:

Limits are truncated. At run time, the validation predicates use truncated versions of the limits entered in Xcode. The sample limits of -4.5 and 4.9 become a min of -4 and a max of 4.

Regression:

Unknown.

Notes:

A sample project is attached. The data model has a single entity with a single decimal attribute with a min of -4.5 and a max of 4.9. The method -[AppDelegate testDecimalValidation] does the following:

1. Finds the attribute and prints its validation predicates, which produces this:

2013-04-17 15:38:27.806 DecimalValidate[51561:c07] Validation predicates: (
    "SELF >= -4",
    "SELF <= 4"
)

2. Creates an instance of this entity and sets its decimal attribute to 4.1, which should be legal.

3. Calls -validateForInsert: on the instance, which fails because of an illegal decimal value.


17-Apr-2013 03:44 PM Tom Harrington:
'DecimalValidate.zip' was successfully uploaded