turn library into list, list cache fixes

oml/item/api.py

@@ -168,7 +168,9 @@ def remove(data):
     if 'ids' in data and data['ids']:
         for i in models.Item.query.filter(models.Item.id.in_(data['ids'])):
             i.remove_file()
-    state.user().clear_smart_list_cache()
+    u = state.user()
+    u.clear_smart_list_cache()
+    u.clear_list_cache()
     return {
         'items': []
     }

oml/item/models.py

@@ -90,6 +90,12 @@ class Item(db.Model):
             state.db.session.commit()
         return item
 
+    def add_user(self, user):
+        self.users.append(user)
+        l = user.library
+        l.items.append(self)
+        state.db.session.add(l)
+
     def json(self, keys=None):
         j  = {}
         j['id'] = self.id
@@ -384,7 +390,7 @@ class Item(db.Model):
         if not u in self.users:
             t = Transfer.get_or_create(self.id)
             logger.debug('queue %s for download', self.id)
-            self.users.append(u)
+            self.add_user(u)
 
     def save_file(self, content):
         u = state.user()
@@ -406,7 +412,7 @@ class Item(db.Model):
                 with open(path, 'wb') as fd:
                     fd.write(content)
                 if u not in self.users:
-                    self.users.append(u)
+                    self.add_user(u)
                 t = Transfer.get_or_create(self.id)
                 t.progress = 1
                 t.save()

oml/item/scan.py

@@ -52,7 +52,7 @@ def add_file(id, f, prefix, from_=None):
     if 'primaryid' in item.info:
         item.meta['primaryid'] = item.info.pop('primaryid')
         state.db.session.add(item)
-    item.users.append(user)
+    item.add_user(user)
     Changelog.record(user, 'additem', item.id, file.info)
     item.added = datetime.utcnow()
     if state.online: