DRY up group update sending

// FREEBIE

js/models/conversations.js

@@ -146,6 +146,34 @@
 
     },
 
+    updateGroup: function(group_update) {
+        if (this.isPrivate()) {
+            throw new Error("Called update group on private conversation");
+        }
+        if (group_update === undefined) {
+            group_update = this.pick(['name', 'avatar', 'members']);
+        }
+        var now = Date.now();
+        var message = this.messageCollection.add({
+            conversationId : this.id,
+            type           : 'outgoing',
+            sent_at        : now,
+            received_at    : now,
+            group_update   : group_update
+        });
+        message.save();
+        textsecure.messaging.updateGroup(
+            this.id,
+            this.get('name'),
+            this.get('avatar'),
+            this.get('members')
+        ).catch(function(errors) {
+            message.save({errors: errors.map(function(e){return e.error;})});
+        }).then(function() {
+            message.save({sent: true});
+        });
+    },
+
     leaveGroup: function() {
         var now = Date.now();
         if (this.get('type') === 'group') {

js/views/new_conversation_view.js

@@ -101,42 +101,20 @@
                 textsecure.storage.groups.createNewGroup(members).then(function(group) {
                     return group.id;
                 }).then(function(groupId) {
-                    var attributes = {
+                    var now = Date.now();
+                    var group = ConversationController.create({
                         id: groupId,
                         groupId: groupId,
                         type: 'group',
                         name: name,
                         avatar: avatarFile,
                         members: members,
-                        active_at: Date.now()
-                    };
-                    var group = ConversationController.create(attributes);
+                        active_at: now,
+                    });
                     group.save().then(function() {
                         this.trigger('open', group);
                     }.bind(this));
-                    var now = Date.now();
-                    var message = group.messageCollection.add({
-                        conversationId : group.id,
-                        type           : 'outgoing',
-                        sent_at        : now,
-                        received_at    : now,
-                        group_update   : {
-                            name: group.get('name'),
-                            avatar: group.get('avatar'),
-                            joined: group.get('members')
-                        }
-                    });
-                    message.save();
-                    textsecure.messaging.updateGroup(
-                        group.id,
-                        group.get('name'),
-                        group.get('avatar'),
-                        group.get('members')
-                    ).catch(function(errors) {
-                        message.save({errors: errors.map(function(e){return e.error;})});
-                    }).then(function() {
-                        message.save({sent: true});
-                    });
+                    group.updateGroup();
                 }.bind(this));
             }.bind(this));
         },

js/views/new_group_update_view.js

@@ -74,25 +74,7 @@
                     this.model.trigger('change:avatar');
                 }
 
-                var message = this.model.messageCollection.add({
-                    conversationId : this.model.id,
-                    type           : 'outgoing',
-                    sent_at        : now,
-                    received_at    : now,
-                    group_update   : group_update
-                });
-                message.save();
-                textsecure.messaging.updateGroup(
-                    this.model.id,
-                    this.model.get('name'),
-                    this.model.get('avatar'),
-                    this.model.get('members')
-                ).catch(function(errors) {
-                    message.save({errors: errors.map(function(e){return e.error;})});
-                }).then(function() {
-                    message.save({sent: true});
-                });
-
+                this.model.updateGroup(group_update);
                 this.goBack();
             }.bind(this));
         }