Matko Đipaloon Stack Overflow • Recommends
On “Form Norm Data vs. View Data - what's the difference?”
The best explanation I have found is in the Symfony's Form class description:
<?php
...
namespace Symfony\Component\Form;
use ...
/**
* Form represents a form.
*
* To implement your own form fields, you need to have a thorough understanding
* of the data flow within a form. A form stores its data in three different
* representations:
*
* (1) the "model" format required by the form's object
* (2) the "normalized" format for internal processing
* (3) the "view" format used for display
*
* A date field, for example, may store a date as "Y-m-d" string (1) in the
* object. To facilitate processing in the field, this value is normalized
* to a DateTime object (2). In the HTML r…