Link for auto merge, db field for MR

app/controllers/merge_requests_controller.rb

@@ -96,18 +96,23 @@ class MergeRequestsController < ApplicationController
   end
 
   def automerge
+    render_404 unless @merge_request.open?
+
     message = ""
+
     if GitlabMerge.new(@merge_request).merge
-      @merge_request.update_attributes(
-        :author_id_of_changes => current_user.id,
-        :closed => true
-      )
-      @merge_request.reload_code
+      @merge_request.merge!(current_user.id)
       message = "Successfully merged"
     else
+      @merge_request.mark_as_unmergable
       message = "Can not be merged"
     end
 
+    redirect_to [@merge_request.project, @merge_request], :alert => message
+  rescue => ex
+    @merge_request.mark_as_unmergable
+    message = "Can not be merged"
+  ensure
     redirect_to [@merge_request.project, @merge_request], :alert => message
   end
 

app/models/merge_request.rb

@@ -56,6 +56,10 @@ class MergeRequest < ActiveRecord::Base
     self.reloaded_diffs
   end
 
+  def can_be_merged?
+    auto_merge
+  end
+
   def new?
     today? && created_at == updated_at
   end
@@ -118,6 +122,11 @@ class MergeRequest < ActiveRecord::Base
     save
   end
 
+  def mark_as_unmergable
+    self.auto_merge = false
+    save
+  end
+
   def reloaded_commits 
     if open? && unmerged_commits.any? 
       self.st_commits = unmerged_commits

app/views/merge_requests/show.html.haml

@@ -8,7 +8,6 @@
   %span.right
     - if can?(current_user, :modify_merge_request, @merge_request)
       - if @merge_request.open?
-        = link_to "Show how to merge", "#", :class => "how_to_merge_link btn small padded", :title => "How To Merge"
         = link_to 'Close', project_merge_request_path(@project, @merge_request, :merge_request => {:closed => true }, :status_only => true), :method => :put, :class => "btn small padded", :title => "Close merge request"
         = link_to edit_project_merge_request_path(@project, @merge_request), :class => "btn small padded" do 
           Edit
@@ -53,6 +52,22 @@
           Closed by #{@merge_request.closed_event.author_name} 
           %small #{time_ago_in_words(@merge_request.closed_event.created_at)} ago.
 
+- if @merge_request.open? && @commits.any?
+  - if @merge_request.can_be_merged?
+    .alert-message.block-message.success
+      %p You can try to merge this request with GitLab. If failed you can always do it manually
+      .alert-actions
+        = link_to "Try Merge it!", automerge_project_merge_request_path(@project, @merge_request), :class => "btn small success"
+         
+        = link_to "Show how to merge", "#", :class => "how_to_merge_link btn small padded", :title => "How To Merge"
+  - else
+    .alert-message.block-message
+      %p This request cant be merged with GitLab. You should do it manually
+      .alert-actions
+        %span.btn.small.disabled Try Merge it!
+        = link_to "Show how to merge", "#", :class => "how_to_merge_link btn small padded success", :title => "How To Merge"
+
+
 = render "merge_requests/commits"
 
 - unless @commits.empty?

db/migrate/20120329170745_add_automerge_to_merge_request.rb

+class AddAutomergeToMergeRequest < ActiveRecord::Migration
+  def change
+    add_column :merge_requests, :auto_merge, :boolean, :null => false, :default => true
+
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20120323221339) do
+ActiveRecord::Schema.define(:version => 20120329170745) do
 
   create_table "events", :force => true do |t|
     t.string   "target_type"
@@ -30,8 +30,8 @@ ActiveRecord::Schema.define(:version => 20120323221339) do
     t.integer  "assignee_id"
     t.integer  "author_id"
     t.integer  "project_id"
-    t.datetime "created_at"
-    t.datetime "updated_at"
+    t.datetime "created_at",                     :null => false
+    t.datetime "updated_at",                     :null => false
     t.boolean  "closed",      :default => false, :null => false
     t.integer  "position",    :default => 0
     t.boolean  "critical",    :default => false, :null => false
@@ -43,8 +43,8 @@ ActiveRecord::Schema.define(:version => 20120323221339) do
 
   create_table "keys", :force => true do |t|
     t.integer  "user_id"
-    t.datetime "created_at"
-    t.datetime "updated_at"
+    t.datetime "created_at", :null => false
+    t.datetime "updated_at", :null => false
     t.text     "key"
     t.string   "title"
     t.string   "identifier"
@@ -59,11 +59,12 @@ ActiveRecord::Schema.define(:version => 20120323221339) do
     t.integer  "assignee_id"
     t.string   "title"
     t.boolean  "closed",        :default => false, :null => false
-    t.datetime "created_at"
-    t.datetime "updated_at"
+    t.datetime "created_at",                       :null => false
+    t.datetime "updated_at",                       :null => false
     t.text     "st_commits"
     t.text     "st_diffs"
     t.boolean  "merged",        :default => false, :null => false
+    t.boolean  "auto_merge",    :default => true,  :null => false
   end
 
   add_index "merge_requests", ["project_id"], :name => "index_merge_requests_on_project_id"
@@ -73,8 +74,8 @@ ActiveRecord::Schema.define(:version => 20120323221339) do
     t.string   "noteable_id"
     t.string   "noteable_type"
     t.integer  "author_id"
-    t.datetime "created_at"
-    t.datetime "updated_at"
+    t.datetime "created_at",    :null => false
+    t.datetime "updated_at",    :null => false
     t.integer  "project_id"
     t.string   "attachment"
     t.string   "line_code"
@@ -87,8 +88,8 @@ ActiveRecord::Schema.define(:version => 20120323221339) do
     t.string   "name"
     t.string   "path"
     t.text     "description"
-    t.datetime "created_at"
-    t.datetime "updated_at"
+    t.datetime "created_at",                                   :null => false
+    t.datetime "updated_at",                                   :null => false
     t.boolean  "private_flag",           :default => true,     :null => false
     t.string   "code"
     t.integer  "owner_id"
@@ -111,8 +112,8 @@ ActiveRecord::Schema.define(:version => 20120323221339) do
     t.text     "content"
     t.integer  "author_id",  :null => false
     t.integer  "project_id", :null => false
-    t.datetime "created_at"
-    t.datetime "updated_at"
+    t.datetime "created_at", :null => false
+    t.datetime "updated_at", :null => false
     t.string   "file_name"
     t.datetime "expires_at"
   end
@@ -145,8 +146,8 @@ ActiveRecord::Schema.define(:version => 20120323221339) do
     t.datetime "last_sign_in_at"
     t.string   "current_sign_in_ip"
     t.string   "last_sign_in_ip"
-    t.datetime "created_at"
-    t.datetime "updated_at"
+    t.datetime "created_at",                                               :null => false
+    t.datetime "updated_at",                                               :null => false
     t.string   "name"
     t.boolean  "admin",                                 :default => false, :null => false
     t.integer  "projects_limit",                        :default => 10
@@ -165,16 +166,16 @@ ActiveRecord::Schema.define(:version => 20120323221339) do
   create_table "users_projects", :force => true do |t|
     t.integer  "user_id",                       :null => false
     t.integer  "project_id",                    :null => false
-    t.datetime "created_at"
-    t.datetime "updated_at"
+    t.datetime "created_at",                    :null => false
+    t.datetime "updated_at",                    :null => false
     t.integer  "project_access", :default => 0, :null => false
   end
 
   create_table "web_hooks", :force => true do |t|
     t.string   "url"
     t.integer  "project_id"
-    t.datetime "created_at"
-    t.datetime "updated_at"
+    t.datetime "created_at", :null => false
+    t.datetime "updated_at", :null => false
   end
 
   create_table "wikis", :force => true do |t|