Validates the length of the attributes’ values.
Examples
validator('length', {
is: 15
})
validator('length', {
min: 5,
max: 10
})
-
options -
defaultOptions -
globalOptions
Build options hook. Merges default options into options object. This method gets called on init and is the ideal place to normalize your options. The presence validator is a good example to checkout
Returns:
-
type -
value -
options
Used by all pre-defined validators to build an error message that is present
in validators/message or declared in your i18n solution.
If we extended our default messages to include uniqueUsername: '{username} already exists',
we can use this method to generate our error message.
validate(value, options) {
var exists = false;
get(options, 'description') = 'Username';
get(options, 'username') = value;
// check with server if username exists...
if(exists) {
return this.createErrorMessage('uniqueUsername', value, options);
}
return true;
}
If we input johndoe and that username already exists, the returned message would be 'johndoe already exists'.
Parameters:
Returns:
The generated message
Wrapper method to value that passes the necessary parameters
Returns:
value
-
value -
options -
model -
attribute
Parameters:
-
valueAny -
optionsObject-
allowNoneBooleanIf true, skips validation if the value is null or undefined. Default: true
-
allowBlankBooleanIf true, skips validation if the value is empty
-
useBetweenMessageBooleanIf true, uses the between error message when
maxandminare both set -
isNumberThe exact length the value can be
-
minNumberThe minimum length the value can be
-
maxNumberThe maximum length the value can be
-
-
modelObject -
attributeString