moved merge parms to service

app/controllers/projects/issues_controller.rb

@@ -212,7 +212,7 @@ class Projects::IssuesController < Projects::ApplicationController
   end
   def create_merge_request
-    result = ::MergeRequests::CreateFromIssueService.new(project, current_user, merge_request_params).execute
+    result = ::MergeRequests::CreateFromIssueService.new(project, current_user, issue_iid: issue.iid).execute
     if result[:status] == :success
       render json: MergeRequestCreateSerializer.new.represent(result[:merge_request])
@@ -287,14 +287,4 @@ class Projects::IssuesController < Projects::ApplicationController
     redirect_to new_user_session_path, notice: notice
   end
-
-  private
-
-  def merge_request_params
-    { 
-      issue_iid: issue.iid,
-      label_ids: issue.label_ids,
-      milestone_id: issue.milestone_id
-    }
-  end
 end

app/services/merge_requests/create_from_issue_service.rb

@@ -3,6 +3,8 @@ module MergeRequests
     def execute
       return error('Invalid issue iid') unless issue_iid.present? && issue.present?
+      params[:label_ids] =  issue.label_ids if issue.label_ids.any?
+      
       result = CreateBranchService.new(project, current_user).execute(branch_name, ref)
       return result if result[:status] == :error
@@ -43,7 +45,8 @@ module MergeRequests
       {
         source_project_id: project.id,
         source_branch: branch_name,
-        target_project_id: project.id
+        target_project_id: project.id,
+        milestone_id: issue.milestone_id
       }
     end

spec/services/merge_requests/create_from_issue_service_spec.rb

@@ -3,22 +3,11 @@ require 'spec_helper'
 describe MergeRequests::CreateFromIssueService do
   let(:project) { create(:project, :repository) }
   let(:user)    { create(:user) }
-  let(:issue)   { create(:issue, project: project) }
-  let(:milestone) { create(:milestone, project: project) }
-  let(:labels) { create_pair(:label, project: project) }
-  
+  let(:label_ids) { create_pair(:label, project: project).map(&:id) }
+  let(:milestone_id) { create(:milestone, project: project).id }
+  let(:issue)   { create(:issue, project: project, milestone_id: milestone_id) }
+
   subject(:service) { described_class.new(project, user, issue_iid: issue.iid) }
-  subject(:service2) do 
-    described_class.new(
-      project,
-      user, 
-      {
-        issue_iid: issue.iid,
-        milestone_id: milestone.id,
-        label_ids: labels.map(&:id)
-      }
-    )
-  end
   before do
     project.add_developer(user)
@@ -38,16 +27,18 @@ describe MergeRequests::CreateFromIssueService do
       described_class.new(project, user, issue_iid: -1).execute
     end
-    it "can inherit labels" do
-      result = service2.execute
-      expect(result[:merge_request].label_ids).to eq(labels.map(&:id))
+    it "inherits labels" do
+      issue.assign_attributes(label_ids: label_ids)
+      result = service.execute
+
+      expect(result[:merge_request].label_ids).to eq(label_ids)
     end
-    it "can inherit milestones" do
-      result = service2.execute
-      expect(result[:merge_request].milestone_id).to eq(milestone.id)
+    it "inherits milestones" do
+      result = service.execute
+      expect(result[:merge_request].milestone_id).to eq(milestone_id)
     end
     it 'delegates the branch creation to CreateBranchService' do