init(leftExpressions:rightExpressionAttributeType:modifier:operators:options:)
Initializes and returns a “pop-up-pop-up-view”–style row template.
Declaration
init(leftExpressions: [NSExpression], rightExpressionAttributeType attributeType: NSAttributeType, modifier: NSComparisonPredicate.Modifier, operators: [NSNumber], options: Int)Parameters
- leftExpressions:
An array of Nsexpression objects that represent the left side of a predicate.
- attributeType:
An attribute type for the right side of a predicate. This value dictates the type of view created, and how the control’s object value is coerced before putting it into a predicate.
- modifier:
A modifier for the predicate (see Modifier for possible values).
- operators:
An array of Nsnumber objects specifying the operator type (see Operator for possible values).
- options:
Options for the predicate (see Options Swift.struct for possible values).
Return Value
A row template initialized using the specified arguments.
Discussion
The type of attributeType dictates the type of view created. For example, NSAttributeType.dateAttributeType creates an NSDatePicker object, NSAttributeType.integer64AttributeType creates a short text field, and NSAttributeType.stringAttributeType produces a longer text field. You can resize the views as you want.
Predicates do not automatically coerce types for you. For example, comparing a number to a string will raise an exception. Therefore, the attribute type is also needed to determine how the control’s object value must be coerced before putting it into a predicate.