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Zend Framework: Zend\Form\Decorator\JavascriptValidator Component Proposal

Table of Contents

1. Overview

Zend\Form\Decorator\JsAutoValidator is a unobtrusive JavaScript validator that takes into account every (javascript) possible validator rule, and writes down a json with all the information, making available all you need to know to make your own javascript validation.
It also has a built in javascript validator, which can be replaced by your own implementation.

2. References

3. Component Requirements, Constraints, and Acceptance Criteria

Zend\Form\Decorator\JsAutoValidator will generate an agnostic json for element validation, filtering and error decoration. This will allow you to use the built in javascript validator or your own implementation with a simple adapter pattern.

• This component will correctly read the elements validators, filters and error decorators to generate a json with any of these, if present: validator names, parameters, messages variables, messages, errors, filters, error decorators and break chain on failure.
• This component will optionally read correctly the errors and formErrors decorators in the form and elements, and expose their desired tags.
• This component will optionally read the filtering parameters for the elements and expose their filter names.
• This component will allow the user to specify on which event validation should occur (submitting or clicking a submit button)

4. Dependencies on Other Framework Components

• Zend_Form_Decorator_Abstract
• Zend_View
• Zend_View_Helper_HeadScript by default, could be changed by own implementation
• Zend_View_Helper_InlineScript by default, could be changed by own implementation
• Zend_Exception
• Jquery (only the draft will be changed to native javascript)

5. Theory of Operation

The component is added to any Zend_Form

6. Milestones / Tasks

• Milestone 1: [DONE] design notes will be published here
• Milestone 2: [DONE] Working prototype checked attached to the proposal (I don't know how to publish into the incubator) supporting use cases #1, #2
• Milestone 3: [DONE] Unit tests exist, covering 100% of the code.
• Milestone 4: [DONE] Initial documentation exists.

7. Class Index

• Zend_Form_Decorator_JsAutoValidation

8. Use Cases

And in both UC something like this will be printed in json through the inlineScript view helper.

9. Class Skeletons

This is the class skeletons