Some form types got some extra variables or override the common form variables. In fact, those common variables are the variables set on the main form type (Field).

How to document it

These variables should get documented in a new section in each Form Type article. They should get the same format as the Form Type Options. Inherit options should not get documented, as those are already documented in reference/form/twig_reference.

The form variables

The variables link to the code where they are defined. Try to find out a use case of it and possible values and write some small description about those (with some link to the option which is used for the variable). A code example would be great too!

Checkbox

• checked

Choice

• multiple
• expanded
• preferred_choices
• choices
• seperator
• empty_value

Collection

• allow_add
• allow_delete
• prototype

DateTime

• widget

Date

• widget
• data_pattern

Money

• money_pattern

Radio

• checked

Time

• widget
• with_seconds