RequiredValidator

RequiredValidator

Validates a required attribute

RequiredValidator is used by DataValidatorListener for validating data objects.

An attribute of a data model may be defined as required: 


 {
    "name": "price",
    "title": "Price",
    "description": "The price of the product.",
    "type": "Number",
    "nullable": false
}

An operation tries to save a data object without price:


 var obj = {
                "model": "FS2USB42",
                "name": "USB 3.0 Adapter"
            };
 context.model("Product").save(obj).then(function() {
               return done();
           }).catch(function(err) {
               return done(err);
           });

and the result is:


 {
    "code": "EREQUIRED",
    "model": "Product",
    "field": "price",
    "message": "A value is required."
}

Constructor

new RequiredValidator()

Source:

Extends

Methods

getContext() → {DataContext|*}

Gets the current data context, if any.
Inherited From:
Source:
Returns:
Type
DataContext | *

setContext(context)

Sets the current data context.
Parameters:
Name Type Description
context DataContext | *
Inherited From:
Source:

validateSync(val) → {Object|undefined|*}

Validates the given value. If validation fails, the operation will return a validation result.
Parameters:
Name Type Description
val *
Source:
Returns:
Type
Object | undefined | *