[refs #90] try to prevent create same pull

app/controllers/projects/pull_requests_controller.rb

@@ -10,7 +10,6 @@ class Projects::PullRequestsController < Projects::BaseController
 
   def new
     @pull = PullRequest.default_base_project(@project).pull_requests.new
-    FileUtils.rm_rf @pull.path
     #@pull.build_issue
     @pull.issue = @project.issues.new
     @pull.head_project = @project

app/models/pull_request.rb

@@ -8,7 +8,10 @@ class PullRequest < ActiveRecord::Base
   delegate :user, :title, :body, :serial_id, :assignee, :state, :to => :issue, :allow_nil => true
   accepts_nested_attributes_for :issue
   #attr_accessible #FIXME disable for development
-  scope :needed_checking, where(:state => ['open', 'blocked', 'ready'])
+  #validate :uniq_merge
+  before_create :clean_dir
+
+  scope :needed_checking, includes(:issue).where(:issues => {:state => ['open', 'blocked', 'ready', 'already']})
 
   state_machine :initial => :open do
     #after_transition [:ready, :blocked] => [:merged, :closed] do |pull, transition|
@@ -79,19 +82,6 @@ class PullRequest < ActiveRecord::Base
     project.is_root? ? project : project.root
   end
 
-  def clean #FIXME move to protected
-    Dir.chdir(path) do
-      base_project.branches.each {|branch| system 'git', 'checkout', branch.name}
-      system 'git', 'checkout', base_ref
-
-      base_project.branches.each do |branch|
-        system 'git', 'branch', '-D', branch.name unless [base_ref, head_branch].include? branch.name
-      end
-      base_project.tags.each do |tag|
-        system 'git', 'tag', '-d', tag.name unless [base_ref, head_branch].include? tag.name
-      end
-    end
-  end
 
   def path
     filename = [id, base_ref, head_project.owner.uname, head_project.name, head_ref].compact.join('-')
@@ -143,4 +133,28 @@ class PullRequest < ActiveRecord::Base
     end
     # TODO catch errors
   end
+
+  def clean
+    Dir.chdir(path) do
+      base_project.branches.each {|branch| system 'git', 'checkout', branch.name}
+      system 'git', 'checkout', base_ref
+
+      base_project.branches.each do |branch|
+        system 'git', 'branch', '-D', branch.name unless [base_ref, head_branch].include? branch.name
+      end
+      base_project.tags.each do |tag|
+        system 'git', 'tag', '-d', tag.name unless [base_ref, head_branch].include? tag.name
+      end
+    end
+  end
+
+  def uniq_merge
+    if base_project.pull_requests.needed_checking.where('pull_requests.id != ?', id).count >= 1
+      errors.add(:head_ref, t('projects.pull_requests.duplicate', :head_ref => head_ref))
+    end
+  end
+
+  def clean_dir
+    FileUtils.rm_rf path
+  end
 end

app/views/projects/pull_requests/new.html.haml

@@ -33,6 +33,11 @@
         .leftlist=issue.label :title, t('activerecord.attributes.issue.body'), :class => :label
         .rightlist=issue.text_area :body
         .both
+
+      .leftlist for debug
+      .rightlist=@pull.state
+      .both
+
       .leftlist
         \ 
       .rightlist=f.submit t('.submit'), :class => 'btn btn-primary disabled', 'data-loading-text' => t('layout.processing'), :id => 'create_pull'

config/locales/models/pull_request.en.yml

@@ -3,13 +3,14 @@ en:
     pull_requests:
       new:
         new: 'Create a pull request into <span class="label label-info font14">%{base}</span> from <span class="label label-info font14">%{head}</span>'
-        base_ref: 'Base'
-        head_ref: 'Head'
+        base_ref: Base
+        head_ref: Head
         refs: 'branch · tag · commit'
-        base_project: 'Base project'
-        head_project: 'Head project'
-        submit: 'Send pull request'
+        base_project: Base project
+        head_project: Head project
+        submit: Send pull request
       merge: Merge
+      duplicate: There's already a pull request for %{head_ref}
 
   pull_requests:
     tabs:

config/locales/models/pull_request.ru.yml

@@ -3,13 +3,14 @@ ru:
     pull_requests:
       new:
         new: 'Создать запрос на слияние в <span class="label label-info font14">%{base}</span> из <span class="label label-info font14">%{head}</span>'
-        base_ref: 'База'
-        head_ref: 'Источник'
+        base_ref: База
+        head_ref: Источник
         refs: 'branch · tag · commit'
-        base_project: 'Базовый проект'
-        head_project: 'Проект-источник'
-        submit: 'Создать запрос на слияние'
+        base_project: Базовый проект
+        head_project: Проект-источник
+        submit: Создать запрос на слияние
       merge: Слияние
+      duplicate: Уже существует запрос на слияние %{head_ref}
 
   pull_requests:
     tabs:

spec/models/pull_request_spec.rb

@@ -23,7 +23,7 @@ describe PullRequest do
 
   context 'for owner user' do
     before (:all) do
-      stub_rsync_methods
+      stub_symlink_methods
       @user = FactoryGirl.create(:user)
       set_data_for_pull
       @pull = @project.pull_requests.new(:issue_attributes => {:title => 'test', :body => 'testing'})
@@ -74,10 +74,20 @@ describe PullRequest do
         @other_pull.state.should == 'already'
       end
     end
+
+    it "should not be created same pull" do
+      @same_pull = @project.pull_requests.new(:issue_attributes => {:title => 'same', :body => 'testing'})
+      @same_pull.issue.user, @same_pull.issue.project = @user, @same_pull.base_project
+      @same_pull.base_ref = 'master'
+      @same_pull.head_project, @same_pull.head_ref = @project, 'non_conflicts'
+      @same_pull.save
+      @project.pull_requests.includes(:issue).where(:issues => {:title => @same_pull.title}).count.should == 0
+    end
+
   end
 
   before(:all) do
-    stub_rsync_methods
+    stub_symlink_methods
     Platform.delete_all
     User.delete_all
     Repository.delete_all