From 58734af3214d97134a4f7666ddf22ac129d82e83 Mon Sep 17 00:00:00 2001
From: Alejandro Alonso <alejandroalonsofernandez@gmail.com>
Date: Fri, 24 Apr 2015 08:15:46 +0200
Subject: [PATCH] Adding tag support for projects

---
 taiga/projects/apps.py                 | 6 ++++++
 taiga/projects/services/filters.py     | 9 +++++++++
 taiga/projects/services/tags_colors.py | 7 +++++--
 3 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/taiga/projects/apps.py b/taiga/projects/apps.py
index 232efc60..b59c0137 100644
--- a/taiga/projects/apps.py
+++ b/taiga/projects/apps.py
@@ -45,3 +45,9 @@ class ProjectsAppConfig(AppConfig):
         signals.post_save.connect(handlers.project_post_save,
                                   sender=apps.get_model("projects", "Project"),
                                   dispatch_uid='project_post_save')
+
+        # Tags
+        signals.pre_save.connect(handlers.tags_normalization,
+                                 sender=apps.get_model("projects", "Project"))
+        signals.pre_save.connect(handlers.update_project_tags_when_create_or_edit_taggable_item,
+                                  sender=apps.get_model("projects", "Project"))
diff --git a/taiga/projects/services/filters.py b/taiga/projects/services/filters.py
index 8ce48344..e8c2786c 100644
--- a/taiga/projects/services/filters.py
+++ b/taiga/projects/services/filters.py
@@ -18,6 +18,14 @@ from contextlib import closing
 from django.db import connection
 
 
+def _get_project_tags(project):
+    result = set()
+    tags = project.tags or []
+    for tag in tags:
+        result.add(tag)
+    return result
+
+
 def _get_stories_tags(project):
     result = set()
     for tags in project.user_stories.values_list("tags", flat=True):
@@ -157,6 +165,7 @@ def get_all_tags(project):
     tags found on it.
     """
     result = set()
+    result.update(_get_project_tags(project))
     result.update(_get_issues_tags(project))
     result.update(_get_stories_tags(project))
     result.update(_get_tasks_tags(project))
diff --git a/taiga/projects/services/tags_colors.py b/taiga/projects/services/tags_colors.py
index ab47262c..52ac61ff 100644
--- a/taiga/projects/services/tags_colors.py
+++ b/taiga/projects/services/tags_colors.py
@@ -17,6 +17,7 @@
 from django.conf import settings
 
 from taiga.projects.services.filters import get_all_tags
+from taiga.projects.models import Project
 
 from hashlib import sha1
 
@@ -52,6 +53,8 @@ def update_project_tags_colors_handler(instance):
             new_color = _get_new_color(tag, settings.TAGS_PREDEFINED_COLORS,
                                        exclude=used_colors)
             instance.project.tags_colors.append([tag, new_color])
-
+        
     remove_unused_tags(instance.project)
-    instance.project.save()
+
+    if not isinstance(instance, Project):
+        instance.project.save()