From 3b73fe78bd819011e9416941df4cd7969e7c2c62 Mon Sep 17 00:00:00 2001
From: j <j@mailb.org>
Date: Thu, 16 Nov 2017 18:05:50 +0100
Subject: [PATCH] update user references if username gets changed

---
 pandora/user/utils.py | 42 ++++++++++++++++++++++++++++++++++++++++++
 pandora/user/views.py |  9 ++++++---
 2 files changed, 48 insertions(+), 3 deletions(-)

diff --git a/pandora/user/utils.py b/pandora/user/utils.py
index d32d0536c..e7b7c38a0 100644
--- a/pandora/user/utils.py
+++ b/pandora/user/utils.py
@@ -27,3 +27,45 @@ def get_location(ip):
     except:
         country = city = None
     return city, country
+
+
+def rename_user(user, new):
+    import itemlist.models
+    import item.models
+    import user.models
+
+    old = user.username
+    old_prefix = old + ':'
+    new_prefix = new + ':'
+
+    # update list queries matching user
+    for l in itemlist.models.List.objects.filter(query__contains=old_prefix):
+        changed = False
+        for q in l.query['conditions']:
+            if old_prefix in q['value']:
+                q['value'] = q['value'].replace(old_prefix, new_prefix)
+                changed = True
+        if changed:
+            l.save()
+
+    # update profile settings matching user
+    for p in user.models.UserProfile.objects.all():
+        changed = False
+        lists = list(p.ui.get('lists', {}))
+        for name in lists:
+            if name.startswith(old_prefix):
+                nname = name.replace(old_prefix, new_prefix)
+                p.ui['lists'][nname] = p.ui['lists'].pop(name)
+                changed = True
+        collections = list(p.ui.get('collections', {}))
+        for name in collections:
+            if name.startswith(old_prefix):
+                nname = name.replace(old_prefix, new_prefix)
+                p.ui['collections'][nname] = p.ui['collections'].pop(name)
+                changed = True
+        if changed:
+            p.save()
+
+    # update user item find
+    item.models.ItemFind.objects.filter(key='user', value=old).update(value=new)
+    user.username = new
diff --git a/pandora/user/views.py b/pandora/user/views.py
index 8c0a3cf2c..83432bf1c 100644
--- a/pandora/user/views.py
+++ b/pandora/user/views.py
@@ -29,6 +29,7 @@ from changelog.models import add_changelog
 
 from . import models
 from .decorators import capability_required_json
+from .utils import rename_user
 
 
 def get_user_or_404(data):
@@ -357,7 +358,7 @@ def editUser(request, data):
     if 'email' in data:
         if 'email' in data:
             data['email'] = ox.escape_html(data['email'])
-        if User.objects.filter(email__iexact=data['email']).exclude(id=user.id).count()>0:
+        if User.objects.filter(email__iexact=data['email']).exclude(id=user.id).count() > 0:
             response = json_response(status=403, text='email already in use')
             return render_to_json_response(response)
         user.email = data['email']
@@ -380,10 +381,12 @@ def editUser(request, data):
                 user.groups.add(group)
     if 'username' in data:
         if User.objects.filter(
-                username__iexact=data['username']).exclude(id=user.id).count()>0:
+                username__iexact=data['username']).exclude(id=user.id).count() > 0:
             response = json_response(status=403, text='username already in use')
             return render_to_json_response(response)
-        user.username = data['username']
+        else:
+            rename_user(user, data['username'])
+            profile = models.UserProfile.objects.get(pk=user.pk)
     user.save()
     profile.save()
     add_changelog(request, data, user.username)