From 10ec8bfd446ae0b2e31cf04ba9f3c4444567856d Mon Sep 17 00:00:00 2001
From: Magnus Hagander <magnus@hagander.net>
Date: Mon, 11 Dec 2017 15:30:50 +0100
Subject: [PATCH] Add support for descriptive texts over m2m checkboxes

This allows the assignment of "hover mouse to show"-descriptions for m2m
fields with multiple checkboxes.
---
 pgweb/util/helpers.py    |  6 ++++++
 templates/base/form.html | 14 +++++++++++++-
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/pgweb/util/helpers.py b/pgweb/util/helpers.py
index b24885bf..f553e79b 100644
--- a/pgweb/util/helpers.py
+++ b/pgweb/util/helpers.py
@@ -58,10 +58,16 @@ def simple_form(instancetype, itemid, request, formclass, formtemplate='base/for
 	else:
 		markdownfields = None
 
+	if hasattr(form, 'described_checkboxes'):
+		described_checkboxes = form.described_checkboxes
+	else:
+		described_checkboxes = None
+
 	return render_to_response(formtemplate, {
 		'form': form,
 		'formitemtype': instance._meta.verbose_name,
 		'markdownfields': markdownfields,
+		'described_checkboxes': described_checkboxes,
 		'form_intro': hasattr(form, 'form_intro') and form.form_intro or None,
 		'toggle_fields': hasattr(form, 'toggle_fields') and form.toggle_fields or None,
 		'jquery': hasattr(form, 'jquery') and form.jquery or None,
diff --git a/templates/base/form.html b/templates/base/form.html
index 87f1c6e4..6ec2315e 100644
--- a/templates/base/form.html
+++ b/templates/base/form.html
@@ -44,7 +44,7 @@
 
 {% block extrahead %}
 {{ block.super }}
-{%if toggle_fields or jquery %}
+{%if toggle_fields or described_checkboxes or jquery %}
 <script type="text/javascript" src="/media/js/jquery.min.js"></script>
 {%endif%}
 {%if markdownfields%}
@@ -56,6 +56,18 @@
       {%for mdf in markdownfields %}
          attach_showdown_preview('id_{{mdf}}', 0);
       {%endfor%}
+      {%for cbf, descs in described_checkboxes.items%}
+{%comment%}more than a little ugly, but django uses a sequence and not the id for the labels{%endcomment%}
+       var descs={
+{%for k,v in descs %}
+         '{{k}}': '{{v|escapejs}}',
+{%endfor%}
+       };
+       $('ul#id_{{cbf}} li').each(function (i,e) {
+          var id = $(e).find('input[type=checkbox]')[0].value;
+          e.title=descs[id];
+       });
+      {%endfor%}
    }
 </script>
 {%if toggle_fields %}
-- 
2.39.5