Theme change works but applies to all user

InvenTree/InvenTree/forms.py

@@ -9,7 +9,7 @@ from django.utils.translation import ugettext as _
 from django import forms
 from crispy_forms.helper import FormHelper
 from crispy_forms.layout import Layout, Field
-from crispy_forms.bootstrap import PrependedText, AppendedText, PrependedAppendedText
+from crispy_forms.bootstrap import PrependedText, AppendedText, PrependedAppendedText, StrictButton
 from django.contrib.auth.models import User
 from common.models import Theme
 
@@ -172,3 +172,15 @@ class ThemeSelectForm(forms.ModelForm):
         fields = [
             'theme'
         ]
+
+    def __init__(self, *args, **kwargs):
+        super(ThemeSelectForm, self).__init__(*args, **kwargs)
+        self.helper = FormHelper()
+        # Form rendering
+        self.helper.form_show_labels = False
+        self.helper.form_class = 'form-inline'
+        # self.helper.field_template = 'bootstrap4/layout/inline_field.html'
+        self.helper.layout = Layout(
+                Field('theme'),
+                StrictButton(_('Apply Theme'), css_class='btn btn-primary', type='submit')
+            )

InvenTree/InvenTree/views.py

@@ -564,6 +564,32 @@ class ThemeSelectView(FormView):
     success_url = reverse_lazy('settings-theme')
     template_name = "InvenTree/settings/theme.html"
 
+    def get_initial(self):
+        """ Select user theme """
+        initial = super(ThemeSelectView, self).get_initial()
+        initial['theme'] = Theme.objects.all().get().theme
+        return initial
+
+    def post(self, request, *args, **kwargs):
+        """ Save user color theme """
+        form = self.get_form()
+        if form.is_valid():
+            theme_select = form.cleaned_data['theme']
+            
+            try:
+                user_theme = Theme.objects.all().get()
+            except Theme.DoesNotExist:
+                print('No theme selected yet')
+                user_theme = Theme()
+
+            # Set color theme 
+            user_theme.theme = theme_select
+            user_theme.save()
+
+            return self.form_valid(form)
+        else:
+            return self.form_invalid(form)
+
 
 class DatabaseStatsView(AjaxView):
     """ View for displaying database statistics """

InvenTree/common/migrations/0007_theme.py

@@ -1,4 +1,4 @@
-# Generated by Django 3.0.7 on 2020-09-07 16:12
+# Generated by Django 3.0.7 on 2020-09-07 20:12
 
 from django.db import migrations, models
 
@@ -14,7 +14,7 @@ class Migration(migrations.Migration):
             name='Theme',
             fields=[
                 ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
-                ('theme', models.IntegerField(choices=[(0, 'Default'), (1, 'Darker')], default=0)),
+                ('theme', models.CharField(blank=True, choices=[('', 'Default'), ('-darker', 'Darker')], default='', max_length=20)),
             ],
         ),
     ]

InvenTree/common/models.py

@@ -159,12 +159,12 @@ class Currency(models.Model):
 class Theme(models.Model):
     """ Color Theme setting """
 
-    class ThemeChoices(models.IntegerChoices):
-        DEFAULT = 0, _('Default')
-        DARKER = 1, _('Darker')
+    class ThemeChoices(models.TextChoices):
+        DEFAULT = '', _('Default')
+        DARKER = '-darker', _('Darker')
 
-    theme = models.IntegerField(choices=ThemeChoices.choices,
-                                default=ThemeChoices.DEFAULT)
+    theme = models.CharField(max_length=20,
+                             choices=ThemeChoices.choices,
+                             default=ThemeChoices.DEFAULT,
+                             blank=True)
 
-    def __str__(self):
-        return self.theme

InvenTree/part/templatetags/inventree_extras.py

@@ -3,10 +3,10 @@ over and above the built-in Django tags.
 """
 
 from django import template
-from InvenTree import version
+from InvenTree import version, settings
 from InvenTree.helpers import decimal2string
 
-from common.models import InvenTreeSetting
+from common.models import InvenTreeSetting, Theme
 
 register = template.Library()
 
@@ -88,3 +88,9 @@ def inventree_docs_url(*args, **kwargs):
 @register.simple_tag()
 def inventree_setting(key, *args, **kwargs):
     return InvenTreeSetting.get_setting(key)
+
+
+@register.simple_tag()
+def get_theme_css():
+    user_theme = Theme.objects.all().get().theme
+    return f'{settings.STATIC_URL}css/inventree' + user_theme + '.css'

InvenTree/templates/InvenTree/settings/theme.html

@@ -1,4 +1,6 @@
 {% extends "InvenTree/settings/settings.html" %}
+{% load i18n %}
+{% load inventree_extras %}
 
 {% block tabs %}
 {% include "InvenTree/settings/tabs.html" with tab='theme' %}
@@ -16,9 +18,10 @@
     <div class='col-sm-6'>
         <div style='float: left;'>
             <form action="{% url 'settings-theme' %}" method="post">
-            {% csrf_token %}
-            {{ form }}
-            <input class='btn btn-primary' type="submit" value='Apply Theme'>
+                {% csrf_token %}
+                {% load crispy_forms_tags %}
+                {% crispy form %}
+{#                 <button type='submit' class='btn btn-primary'>{% trans "Apply Theme" %}</button> #}
             </form> 
         </div>
     </div>

InvenTree/templates/base.html

@@ -1,5 +1,6 @@
 {% load static %}
 {% load i18n %}
+{% load inventree_extras %}
 
 <!DOCTYPE html>
 <html lang="en">
@@ -38,7 +39,7 @@
 <link rel="stylesheet" href="{% static 'css/select2.css' %}">
 <link rel="stylesheet" href="{% static 'css/select2-bootstrap.css' %}">
 <link rel="stylesheet" href="{% static 'css/bootstrap-toggle.css' %}">
-<link rel="stylesheet" href="{% static 'css/inventree.css' %}">
+<link rel="stylesheet" href="{% get_theme_css %}">
 
 {% block css %}
 {% endblock %}