Ajax modal form with select2


I'm using Select2 on all regular form PHP page and this is working ok.

I need to add a select2 field to an existing ajax form which is a modal php form.
I don't have much experience with Ajax so I'm not sure which value to use to replace adduser-user_division_id into the select
usually I use a variable but I don't what to do with this one
The result give me empty list
error: Notice: Undefined index: division_id

The same modal used to add / edit the infos

Let me know if you need other info.

Form part
<div class="form-group">
	<label class="control-label col-md-3" for="adduser-user_division_id">
		<?php echo ASLang::get('division'); ?><span class="required">*</span>
	<div class="controls col-md-9">
		<?php $divisions = $db->select("SELECT * FROM `as_division`"); ?>
			<select id="adduser-user_division_id" name="adduser-user_division_id" class="form-control select2-single select2-hidden-accessible input-sm" tabindex="-1" aria-hidden="true">
				<?php foreach($divisions as $division): ?>
							echo '<option value="' . $division["division_id"] . '"' .
							(( adduser-user_division_id ==  $division["division_id"]) ? ' selected' : '') . '>' .
							 $division["division_name"] .   '</option>';
					<?php endforeach; ?>									

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lenamtlConnect With a Mentor Author Commented:
I decide to change modal from for page form and I'm not using the same form for adding and editing.
Julian HansenConnect With a Mentor Commented:
What is a select2? I am assuming it is this https://select2.github.io/ ?

Where is the AJAX form
How is it invoked
Where is the JavaScript / JQuery that invokes the form.

It is difficult to see from the snippet you have posted what the full picture is. The more info you can provide the easier it will be for us to get on top of what it is you are trying to do.
leakim971Connect With a Mentor PluritechnicianCommented:
this adduser-user_division_id must be a parameter sent during the ajax call
if the ajax call use GET method, you gonna be able to get it (again, if you send it as ajax parameter) :

So your line 12 :
(( $_GET["adduser-user_division_id"] ==  $division["division_id"]) ? ' selected' : '') . '>' .

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lenamtlAuthor Commented:
It's look like as the form get dynamically filed by js this will require some extra js and php adjustment otherwise it won't work.
I may decide to rewrite the form to a non popup page as there will have more field to add

I will do some test and the weekend and get back with more info.
lenamtlAuthor Commented:
I have found another method to fix the problem
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