From bdc283675c0462e78f47059d2ce28cfabfb87433 Mon Sep 17 00:00:00 2001
From: Étienne Loks <etienne.loks@iggdrasil.net>
Date: Wed, 13 Jun 2018 17:32:00 +0200
Subject: Simple selection widget and field for Select2

---
 .../templates/ishtar/wizard/default_wizard.html    |  2 +-
 ishtar_common/widgets.py                           | 38 +++++++++++++++++-----
 2 files changed, 31 insertions(+), 9 deletions(-)

diff --git a/ishtar_common/templates/ishtar/wizard/default_wizard.html b/ishtar_common/templates/ishtar/wizard/default_wizard.html
index 6707124f9..8d6b1c48e 100644
--- a/ishtar_common/templates/ishtar/wizard/default_wizard.html
+++ b/ishtar_common/templates/ishtar/wizard/default_wizard.html
@@ -1,7 +1,7 @@
 {% extends "base.html" %}
 {% load i18n range table_form %}
 {% block extra_head %}
-{{form.media}}
+{{wizard.form.media}}
 {% endblock %}
 {% block content %}
 {% block wizard_head %}
diff --git a/ishtar_common/widgets.py b/ishtar_common/widgets.py
index d1f6e49d3..8788920af 100644
--- a/ishtar_common/widgets.py
+++ b/ishtar_common/widgets.py
@@ -181,14 +181,14 @@ class Select2DynamicField(forms.ChoiceField):
         return super(Select2DynamicField, self).to_python(value).strip()
 
 
-class Select2Multiple(Select2Media, forms.SelectMultiple):
+class Select2Base(Select2Media):
     def __init__(self, attrs=None, choices=(), remote=None, model=None,
                  new=None, available=None):
-        super(Select2Multiple, self).__init__(attrs, choices)
         self.remote = remote
         self.available = available
         self.model = model
         self.new = new
+        super(Select2Base, self).__init__(attrs, choices)
 
     def get_q(self):
         q = self.model.objects
@@ -273,7 +273,7 @@ class Select2Multiple(Select2Media, forms.SelectMultiple):
                   u'<a href="#" class="add-button input-group-text" ' \
                   u'onclick="open_window(\'%s\');">+</a></span></div>' % url_new
 
-        html += super(Select2Multiple, self).render(name, value, attrs)
+        html += super(Select2Base, self).render(name, value, attrs)
         html += new
         html += """<script type="text/javascript">
         $(document).ready(function() {{
@@ -283,6 +283,14 @@ class Select2Multiple(Select2Media, forms.SelectMultiple):
         return mark_safe(html)
 
 
+class Select2Simple(Select2Base, forms.Select):
+    pass
+
+
+class Select2Multiple(Select2Base, forms.SelectMultiple):
+    pass
+
+
 class CheckboxSelectMultiple(CheckboxSelectMultipleBase):
     """
     Fix initialization bug.
@@ -297,7 +305,9 @@ class CheckboxSelectMultiple(CheckboxSelectMultipleBase):
         return super(CheckboxSelectMultiple, self).render(name, value, attrs)
 
 
-class Select2MultipleField(forms.MultipleChoiceField):
+class Select2BaseField(object):
+    multiple = False
+
     def __init__(self, *args, **kwargs):
         new = None
         if 'new' in kwargs:
@@ -321,11 +331,15 @@ class Select2MultipleField(forms.MultipleChoiceField):
         if long_widget:
             attrs['cols'] = True
             attrs['full-width'] = True
-        kwargs['widget'] = Select2Multiple(
+        if self.multiple:
+            widget = Select2Multiple
+        else:
+            widget = Select2Simple
+        kwargs['widget'] = widget(
             model=self.model, available=self.available, remote=self.remote,
             new=new, attrs=attrs
         )
-        super(Select2MultipleField, self).__init__(*args, **kwargs)
+        super(Select2BaseField, self).__init__(*args, **kwargs)
 
     def get_q(self):
         q = self.model.objects
@@ -335,10 +349,18 @@ class Select2MultipleField(forms.MultipleChoiceField):
 
     def valid_value(self, value):
         if not self.model:
-            return super(Select2MultipleField, self).valid_value(value)
+            return super(Select2BaseField, self).valid_value(value)
         return bool(self.get_q().filter(pk=value).count())
 
 
+class Select2MultipleField(Select2BaseField, forms.MultipleChoiceField):
+    multiple = True
+
+
+class Select2SimpleField(Select2BaseField, forms.ChoiceField):
+    pass
+
+
 class DeleteWidget(forms.CheckboxInput):
     def render(self, name, value, attrs=None, renderer=None):
         final_attrs = flatatt(
@@ -867,7 +889,7 @@ class JQueryPersonOrganization(forms.TextInput):
         return html
 
 
-class DataTable(forms.RadioSelect):
+class DataTable(Select2Media, forms.RadioSelect):
     def __init__(self, source, form, associated_model, attrs={},
                  table_cols='TABLE_COLS', multiple=False, multiple_cols=[2],
                  new=False, new_message="", source_full=None,
-- 
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