Merge branch 'feature/cycle-analytics-events' into 'master'

Cycle Analytics: Events per stage

Adds list of events to each stage:

- Issue: list of issues created in the last XX days, that have been labeled or added to a milestone.
- Plan: list of commits that reference for the fist time an issue from the last stage.
- Code: list of MR created in this stage
- Test: List of unique builds triggered by the commits.
- Review: List of MR merged
- Staging: List of deployed builds
- Production: list of issues with the time from idea to production

Fixes #23449 

- [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- [ ] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- Tests
  - [x] Added for this feature/bug
  - [x] All builds are passing
- [x] Conform by the [merge request performance guides](http://docs.gitlab.com/ce/development/merge_request_performance_guidelines.html)
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if it does - rebase it please)
- [ ] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !6859

3 files changed, 36 insertions, 0 deletions

diff --git a/db/fixtures/development/17_cycle_analytics.rb b/db/fixtures/development/17_cycle_analytics.rb
index e882a492757..916ee8dbac8 100644
--- a/db/fixtures/development/17_cycle_analytics.rb
+++ b/db/fixtures/development/17_cycle_analytics.rb
@@ -203,6 +203,8 @@ class Gitlab::Seeder::CycleAnalytics
       pipeline.run!
       Timecop.travel rand(1..6).hours.from_now
       pipeline.succeed!
+
+      PipelineMetricsWorker.new.perform(pipeline.id)
     end
   end
 
diff --git a/db/migrate/20161020083353_add_pipeline_id_to_merge_request_metrics.rb b/db/migrate/20161020083353_add_pipeline_id_to_merge_request_metrics.rb
new file mode 100644
index 00000000000..ed53756cd24
--- /dev/null
+++ b/db/migrate/20161020083353_add_pipeline_id_to_merge_request_metrics.rb
@@ -0,0 +1,31 @@
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class AddPipelineIdToMergeRequestMetrics < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = true
+
+  # When a migration requires downtime you **must** uncomment the following
+  # constant and define a short and easy to understand explanation as to why the
+  # migration requires downtime.
+  DOWNTIME_REASON = 'Adding a foreign key'
+
+  # When using the methods "add_concurrent_index" or "add_column_with_default"
+  # you must disable the use of transactions as these methods can not run in an
+  # existing transaction. When using "add_concurrent_index" make sure that this
+  # method is the _only_ method called in the migration, any other changes
+  # should go in a separate migration. This ensures that upon failure _only_ the
+  # index creation fails and can be retried or reverted easily.
+  #
+  # To disable transactions uncomment the following line and remove these
+  # comments:
+  # disable_ddl_transaction!
+
+  def change
+    add_column :merge_request_metrics, :pipeline_id, :integer
+    add_concurrent_index :merge_request_metrics, :pipeline_id
+    add_foreign_key :merge_request_metrics, :ci_commits, column: :pipeline_id, on_delete: :cascade
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index ed4dfc786f6..983e1c90682 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -634,10 +634,12 @@ ActiveRecord::Schema.define(version: 20161109150329) do
     t.datetime "merged_at"
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
+    t.integer "pipeline_id"
   end
 
   add_index "merge_request_metrics", ["first_deployed_to_production_at"], name: "index_merge_request_metrics_on_first_deployed_to_production_at", using: :btree
   add_index "merge_request_metrics", ["merge_request_id"], name: "index_merge_request_metrics", using: :btree
+  add_index "merge_request_metrics", ["pipeline_id"], name: "index_merge_request_metrics_on_pipeline_id", using: :btree
 
   create_table "merge_requests", force: :cascade do |t|
     t.string "target_branch", null: false
@@ -1244,6 +1246,7 @@ ActiveRecord::Schema.define(version: 20161109150329) do
   add_foreign_key "labels", "namespaces", column: "group_id", on_delete: :cascade
   add_foreign_key "lists", "boards"
   add_foreign_key "lists", "labels"
+  add_foreign_key "merge_request_metrics", "ci_commits", column: "pipeline_id", on_delete: :cascade
   add_foreign_key "merge_request_metrics", "merge_requests", on_delete: :cascade
   add_foreign_key "merge_requests_closing_issues", "issues", on_delete: :cascade
   add_foreign_key "merge_requests_closing_issues", "merge_requests", on_delete: :cascade