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validatesLengthOf()

Validates that the value of the specified property matches the length requirements supplied. Use the exactly, maximum, minimum and within arguments to specify the length requirements.

Name Type Required Default Description
properties string No Name of property or list of property names to validate against (can also be called with the property argument).
message string No [property] is the wrong length Supply a custom error message here to override the built-in one.
when string No onSave Pass in onCreate or onUpdate to limit when this validation occurs (by default validation will occur on both create and update, i.e. onSave).
allowBlank boolean No false If set to true, validation will be skipped if the property value is an empty string or doesn't exist at all. This is useful if you only want to run this validation after it passes the validatesPresenceOf test, thus avoiding duplicate error messages if it doesn't.
exactly numeric No 0 The exact length that the property value must be.
maximum numeric No 0 The maximum length that the property value can be.
minimum numeric No 0 The minimum length that the property value can be.
within string No A list of two values (minimum and maximum) that the length of the property value must fall within.
condition string No String expression to be evaluated that decides if validation will be run (if the expression returns true validation will run).
unless string No String expression to be evaluated that decides if validation will be run (if the expression returns false validation will run). 
// Make sure that the `firstname` and `lastName` properties are not more than
// 50 characters and use square brackets to dynamically insert the property
// name when the error message is displayed to the user. (The `firstName`
// property will be displayed as "first name".)
validatesLengthOf(
    properties="firstName,lastName",
    maximum=50,
    message="Please shorten your [property] please (50 characters max)."
);

// Make sure that the `password` property is between 4 and 15 characters
validatesLengthOf(
    property="password",
    within="4,20",
    message="The password length must be between 4 and 20 characters."
);
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