Custom Validators

You can build also your own validators by implementing our interface cbvalidaton.models.validators.IValidator :

/**
* Will check if an incoming value validates
* @validationResult.hint The result object of the validation
* @target.hint The target object to validate on
* @field.hint The field on the target object to validate on
* @targetValue.hint The target value to validate
*/
boolean function validate(required cbvalidation.models.result.IValidationResult validationResult, required any target, required string field, any targetValue, any validationData);

/**
* Get the name of the validator
*/
string function getName();

The arguments received are:

• validationResults : The validation result object
• field : The field or property in the object that is in validation
• targetValue : The value to test

Here is a sample validator:

/**
********************************************************************************
Copyright Since 2005 ColdBox Framework by Luis Majano and Ortus Solutions, Corp
www.coldbox.org | www.luismajano.com | www.ortussolutions.com
********************************************************************************
The ColdBox validator interface, all inspired by awesome Hyrule Validation Framework by Dan Vega
*/
component accessors="true" implements="cbvalidation.models.validators.IValidator" singleton{

    property name="name";

    MaxValidator function init(){
        name = "Max";    
        return this;
    }

    /**
    * Will check if an incoming value validates
    * @validationResult.hint The result object of the validation
    * @target.hint The target object to validate on
    * @field.hint The field on the target object to validate on
    * @targetValue.hint The target value to validate
    * @validationData.hint The validation data the validator was created with
    */
    boolean function validate(required cbvalidation.models.result.IValidationResult validationResult, required any target, required string field, any targetValue, string validationData){

        // Simple Tests
        if( !isNull(arguments.targetValue) AND arguments.targetValue <= arguments.validationData ){
            return true;
        }

        var args = {message="The '#arguments.field#' value is not less than #arguments.validationData#",field=arguments.field,validationType=getName(),validationData=arguments.validationData};
        var error = validationResult.newError(argumentCollection=args).setErrorMetadata({max=arguments.validationData});
        validationResult.addError( error );
        return false;
    }

    /**
    * Get the name of the validator
    */
    string function getName(){
        return name;
    }

}

WARNING: You can't do a normal wirebox mapping for YourOwnValidator in your main application. A validator needs an IValidator interface from the cbvalidation module. When wirebox inspects the binder, the cbvalidation module is not loaded yet, so it will error. This can be solved by defining your custom validators in an own module (depending on cbvalidation) or by mapping your validator in the afterConfigurationLoad() method of your binder, e.g in config/wirebox.cfc