Domain Object

← Declaring Constraints

Within any domain object you can define a public variable called constraints that is a assigned an implicit structure of validation rules for any fields or properties in your object:

component persistent="true"{
	
	// Object properties
	property name="id" fieldtype="id" generator="native" setter="false";
	property name="fname";
	property name="lname";
	property name="email";
	property name="username";
	property name="password";
	property name="age";

	// Validation
	this.constraints = {
		// Constraints go here
	}
}

We can then create the validation rules for the properties it will apply to it:

component persistent="true"{
	 
	...

	// Validation
	this.constraints = {
		fname = { required = true },
		lname = { required = true},
		username = {required=true, size="6..10"},
		password = {required=true, size="6..8"},
		email = {required=true, type="email"},
		age = {required=true, type="numeric", min=18}
	};
}

That easy! You can just declare these validation rules and ColdBox will validate your properties according to the rules. In this case you can see that a password must be between 6 and 10 characters long, and it cannot be blank.

Info By default all properties are of type string and not required