Merge branch 'issue_15044' into 'master'

Allow to close invalid merge request

fixes #15044

See merge request !3664

2 files changed, 8 insertions, 6 deletions

diff --git a/app/models/commit.rb b/app/models/commit.rb
index d09876a07d9..11ecfcace14 100644
--- a/app/models/commit.rb
+++ b/app/models/commit.rb
@@ -150,13 +150,11 @@ class Commit
   end
 
   def hook_attrs(with_changed_files: false)
-    path_with_namespace = project.path_with_namespace
-
     data = {
       id: id,
       message: safe_message,
       timestamp: committed_date.xmlschema,
-      url: "#{Gitlab.config.gitlab.url}/#{path_with_namespace}/commit/#{id}",
+      url: commit_url,
       author: {
         name: author_name,
         email: author_email
@@ -170,6 +168,10 @@ class Commit
     data
   end
 
+  def commit_url
+    project.present? ? "#{Gitlab.config.gitlab.url}/#{project.path_with_namespace}/commit/#{id}" : ""
+  end
+
   # Discover issues should be closed when this commit is pushed to a project's
   # default branch.
   def closes_issues(current_user = self.committer)
diff --git a/app/models/merge_request.rb b/app/models/merge_request.rb
index bf185cb5dd8..e410febdfff 100644
--- a/app/models/merge_request.rb
+++ b/app/models/merge_request.rb
@@ -128,7 +128,7 @@ class MergeRequest < ActiveRecord::Base
   validates :target_project, presence: true
   validates :target_branch, presence: true
   validates :merge_user, presence: true, if: :merge_when_build_succeeds?
-  validate :validate_branches
+  validate :validate_branches, unless: :allow_broken
   validate :validate_fork
 
   scope :by_branch, ->(branch_name) { where("(source_branch LIKE :branch) OR (target_branch LIKE :branch)", branch: branch_name) }
@@ -218,7 +218,7 @@ class MergeRequest < ActiveRecord::Base
     end
 
     if opened? || reopened?
-      similar_mrs = self.target_project.merge_requests.where(source_branch: source_branch, target_branch: target_branch, source_project_id: source_project.id).opened
+      similar_mrs = self.target_project.merge_requests.where(source_branch: source_branch, target_branch: target_branch, source_project_id: source_project.try(:id)).opened
       similar_mrs = similar_mrs.where('id not in (?)', self.id) if self.id
       if similar_mrs.any?
         errors.add :validate_branches,
@@ -345,7 +345,7 @@ class MergeRequest < ActiveRecord::Base
 
   def hook_attrs
     attrs = {
-      source: source_project.hook_attrs,
+      source: source_project.try(:hook_attrs),
       target: target_project.hook_attrs,
       last_commit: nil,
       work_in_progress: work_in_progress?