Migrations for Cycle Analytics backend

This change lays the foundation for customizable cycle analytics stages.
The main reason for the change is to extract the event definitions to
separate objects (start_event, end_event) so that it could be easily
customized later on.

3 files changed, 114 insertions, 0 deletions

diff --git a/db/migrate/20190716144222_create_analytics_cycle_analytics_project_stages.rb b/db/migrate/20190716144222_create_analytics_cycle_analytics_project_stages.rb
new file mode 100644
index 00000000000..5c005377b00
--- /dev/null
+++ b/db/migrate/20190716144222_create_analytics_cycle_analytics_project_stages.rb
@@ -0,0 +1,35 @@
+# frozen_string_literal: true
+
+class CreateAnalyticsCycleAnalyticsProjectStages < ActiveRecord::Migration[5.2]
+  DOWNTIME = false
+
+  INDEX_PREFIX = 'index_analytics_ca_project_stages_'
+
+  def change
+    create_table :analytics_cycle_analytics_project_stages do |t|
+      t.timestamps_with_timezone
+      t.integer :relative_position
+      t.integer :start_event_identifier, null: false
+      t.integer :end_event_identifier, null: false
+      t.references(:project, {
+        null: false,
+        foreign_key: { to_table: :projects, on_delete: :cascade },
+        index: { name: INDEX_PREFIX + 'on_project_id' }
+      })
+      t.references(:start_event_label, {
+        foreign_key: { to_table: :labels, on_delete: :cascade },
+        index: { name: INDEX_PREFIX + 'on_start_event_label_id' }
+      })
+      t.references(:end_event_label, {
+        foreign_key: { to_table: :labels, on_delete: :cascade },
+        index: { name: INDEX_PREFIX + 'on_end_event_label_id' }
+      })
+      t.boolean :hidden, default: false, null: false
+      t.boolean :custom, default: true, null: false
+      t.string :name, null: false, limit: 255
+    end
+
+    add_index :analytics_cycle_analytics_project_stages, [:project_id, :name], unique: true, name: INDEX_PREFIX + 'on_project_id_and_name'
+    add_index :analytics_cycle_analytics_project_stages, [:relative_position], name: INDEX_PREFIX + 'on_relative_position'
+  end
+end
diff --git a/db/migrate/20190729062536_create_analytics_cycle_analytics_group_stages.rb b/db/migrate/20190729062536_create_analytics_cycle_analytics_group_stages.rb
new file mode 100644
index 00000000000..5b327dc5332
--- /dev/null
+++ b/db/migrate/20190729062536_create_analytics_cycle_analytics_group_stages.rb
@@ -0,0 +1,35 @@
+# frozen_string_literal: true
+
+class CreateAnalyticsCycleAnalyticsGroupStages < ActiveRecord::Migration[5.2]
+  DOWNTIME = false
+
+  INDEX_PREFIX = 'index_analytics_ca_group_stages_'
+
+  def change
+    create_table :analytics_cycle_analytics_group_stages do |t|
+      t.timestamps_with_timezone
+      t.integer :relative_position
+      t.integer :start_event_identifier, null: false
+      t.integer :end_event_identifier, null: false
+      t.references(:group, {
+        null: false,
+        foreign_key: { to_table: :namespaces, on_delete: :cascade },
+        index: { name: INDEX_PREFIX + 'on_group_id' }
+      })
+      t.references(:start_event_label, {
+        foreign_key: { to_table: :labels, on_delete: :cascade },
+        index: { name: INDEX_PREFIX + 'on_start_event_label_id' }
+      })
+      t.references(:end_event_label, {
+        foreign_key: { to_table: :labels, on_delete: :cascade },
+        index: { name: INDEX_PREFIX + 'on_end_event_label_id' }
+      })
+      t.boolean :hidden, default: false, null: false
+      t.boolean :custom, default: true, null: false
+      t.string :name, null: false, limit: 255
+    end
+
+    add_index :analytics_cycle_analytics_group_stages, [:group_id, :name], unique: true, name: INDEX_PREFIX + 'on_group_id_and_name'
+    add_index :analytics_cycle_analytics_group_stages, [:relative_position], name: INDEX_PREFIX + 'on_relative_position'
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 0f8c3cae689..cf7f0fc0a3d 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -26,6 +26,44 @@ ActiveRecord::Schema.define(version: 2019_08_12_070645) do
     t.integer "cached_markdown_version"
   end
 
+  create_table "analytics_cycle_analytics_group_stages", force: :cascade do |t|
+    t.datetime_with_timezone "created_at", null: false
+    t.datetime_with_timezone "updated_at", null: false
+    t.integer "relative_position"
+    t.integer "start_event_identifier", null: false
+    t.integer "end_event_identifier", null: false
+    t.bigint "group_id", null: false
+    t.bigint "start_event_label_id"
+    t.bigint "end_event_label_id"
+    t.boolean "hidden", default: false, null: false
+    t.boolean "custom", default: true, null: false
+    t.string "name", limit: 255, null: false
+    t.index ["end_event_label_id"], name: "index_analytics_ca_group_stages_on_end_event_label_id"
+    t.index ["group_id", "name"], name: "index_analytics_ca_group_stages_on_group_id_and_name", unique: true
+    t.index ["group_id"], name: "index_analytics_ca_group_stages_on_group_id"
+    t.index ["relative_position"], name: "index_analytics_ca_group_stages_on_relative_position"
+    t.index ["start_event_label_id"], name: "index_analytics_ca_group_stages_on_start_event_label_id"
+  end
+
+  create_table "analytics_cycle_analytics_project_stages", force: :cascade do |t|
+    t.datetime_with_timezone "created_at", null: false
+    t.datetime_with_timezone "updated_at", null: false
+    t.integer "relative_position"
+    t.integer "start_event_identifier", null: false
+    t.integer "end_event_identifier", null: false
+    t.bigint "project_id", null: false
+    t.bigint "start_event_label_id"
+    t.bigint "end_event_label_id"
+    t.boolean "hidden", default: false, null: false
+    t.boolean "custom", default: true, null: false
+    t.string "name", limit: 255, null: false
+    t.index ["end_event_label_id"], name: "index_analytics_ca_project_stages_on_end_event_label_id"
+    t.index ["project_id", "name"], name: "index_analytics_ca_project_stages_on_project_id_and_name", unique: true
+    t.index ["project_id"], name: "index_analytics_ca_project_stages_on_project_id"
+    t.index ["relative_position"], name: "index_analytics_ca_project_stages_on_relative_position"
+    t.index ["start_event_label_id"], name: "index_analytics_ca_project_stages_on_start_event_label_id"
+  end
+
   create_table "appearances", id: :serial, force: :cascade do |t|
     t.string "title", null: false
     t.text "description", null: false
@@ -3632,6 +3670,12 @@ ActiveRecord::Schema.define(version: 2019_08_12_070645) do
     t.index ["type"], name: "index_web_hooks_on_type"
   end
 
+  add_foreign_key "analytics_cycle_analytics_group_stages", "labels", column: "end_event_label_id", on_delete: :cascade
+  add_foreign_key "analytics_cycle_analytics_group_stages", "labels", column: "start_event_label_id", on_delete: :cascade
+  add_foreign_key "analytics_cycle_analytics_group_stages", "namespaces", column: "group_id", on_delete: :cascade
+  add_foreign_key "analytics_cycle_analytics_project_stages", "labels", column: "end_event_label_id", on_delete: :cascade
+  add_foreign_key "analytics_cycle_analytics_project_stages", "labels", column: "start_event_label_id", on_delete: :cascade
+  add_foreign_key "analytics_cycle_analytics_project_stages", "projects", on_delete: :cascade
   add_foreign_key "application_settings", "namespaces", column: "custom_project_templates_group_id", on_delete: :nullify
   add_foreign_key "application_settings", "projects", column: "file_template_project_id", name: "fk_ec757bd087", on_delete: :nullify
   add_foreign_key "application_settings", "projects", column: "instance_administration_project_id", on_delete: :nullify