Dropdown (select) Fieldtype for the ProcessWire CMS.

Note: this module is still in Beta and prone to have errors. Use at your own risks.

ProcessWire 2.5 or higher

Most times when you think about using a custom select like this module provides, a regular FieldtypePage with an InputfieldSelect is exactly what you need to populate a field in your ProcessWire template, even if you don't think so at first. Whenever you want to provide both consistency and permanency for selection options, pages are the way to go, because they make the link between linking page (the page with the select field) and the selected page permanent. And really, database storage doesn't get much smoother than storing your selection list as pages.

With that out of the way, there are some cases, e.g. when pulling in data from foreign systems or making heavy use of file system contents and where ease of use comes before consistency, in which that pages-centric approach may get clunky.

FieldtypeDropdownDynamic is an extension to FieldtypeText, so make sure that you don't deal with float values or the likes.

When you add a field and set its type to FieldtypeDropdownDynamic, you'll see two configuration options:

This textarea holds the PHP code that fills your dropdown list, which is just a simple InputfieldSelect. To fill it, you need to return an array holding an associative array for each selection entry. Here's a very simple example:

return array(
	array("label" => "First option", value => "first"),
	array("label" => "Second option", value => "second")
);

Of course you can use all ProcessWire APIs and any included functions there as well. You might make a call to a webservice somewhere or even populate your list with values created through (string) rand(1, 9999999)... it's your choice.

If this option is checked, the contents of the checkbox above it will be used as the relative path to a PHP include file instead of being evaluated directly. This include, of course, will also need to return() a fitting array that populates the dropdown.

The path used there is relative your site's template path.

As FieldtypeDropdownDynamic uses InputfieldSelect under the hood, it also allows you to pass option groups to the select. The downside is that you can't pass attributes to your nested options.

Example:

return array(
	array("label" => "first", "value" => "firstval"),
	array("value" => "Option Group Title", "label" => array(
		"second" => "secondval",
		"third" => "thirdval"
	)),
	array("label" => "fourth", "value" => "fourthval")
);

This code populates the dropdown like this:

This module is released under the MIT license (see LICENSE.TXT). Use it however it pleases you.