update schema

db/schema.rb

@@ -182,8 +182,8 @@ ActiveRecord::Schema.define(version: 20160615142710) do
     t.text     "artifacts_metadata"
     t.integer  "erased_by_id"
     t.datetime "erased_at"
-    t.string   "environment"
     t.datetime "artifacts_expire_at"
+    t.string   "environment"
   end
 
   add_index "ci_builds", ["commit_id", "stage_idx", "created_at"], name: "index_ci_builds_on_commit_id_and_stage_idx_and_created_at", using: :btree
@@ -434,7 +434,7 @@ ActiveRecord::Schema.define(version: 20160615142710) do
   add_index "emails", ["user_id"], name: "index_emails_on_user_id", using: :btree
 
   create_table "environments", force: :cascade do |t|
-    t.integer  "project_id"
+    t.integer  "project_id", null: false
     t.string   "name",       null: false
     t.datetime "created_at"
     t.datetime "updated_at"
@@ -882,46 +882,44 @@ ActiveRecord::Schema.define(version: 20160615142710) do
     t.datetime "created_at"
     t.datetime "updated_at"
     t.integer  "creator_id"
-    t.boolean  "issues_enabled",                   default: true,     null: false
-    t.boolean  "merge_requests_enabled",           default: true,     null: false
-    t.boolean  "wiki_enabled",                     default: true,     null: false
+    t.boolean  "issues_enabled",                     default: true,  null: false
+    t.boolean  "merge_requests_enabled",             default: true,  null: false
+    t.boolean  "wiki_enabled",                       default: true,  null: false
     t.integer  "namespace_id"
-    t.string   "issues_tracker",                   default: "gitlab", null: false
-    t.string   "issues_tracker_id"
-    t.boolean  "snippets_enabled",                 default: true,     null: false
+    t.boolean  "snippets_enabled",                   default: true,  null: false
     t.datetime "last_activity_at"
     t.string   "import_url"
-    t.integer  "visibility_level",                 default: 0,        null: false
-    t.boolean  "archived",                         default: false,    null: false
+    t.integer  "visibility_level",                   default: 0,     null: false
+    t.boolean  "archived",                           default: false, null: false
     t.string   "avatar"
     t.string   "import_status"
-    t.float    "repository_size",                  default: 0.0
+    t.float    "repository_size",                    default: 0.0
     t.text     "merge_requests_template"
-    t.integer  "star_count",                       default: 0,        null: false
-    t.boolean  "merge_requests_rebase_enabled",    default: false
+    t.integer  "star_count",                         default: 0,     null: false
+    t.boolean  "merge_requests_rebase_enabled",      default: false
     t.string   "import_type"
     t.string   "import_source"
-    t.integer  "approvals_before_merge",           default: 0,        null: false
-    t.boolean  "reset_approvals_on_push",          default: true
-    t.integer  "commit_count",                     default: 0
-    t.boolean  "merge_requests_ff_only_enabled",   default: false
+    t.integer  "approvals_before_merge",             default: 0,     null: false
+    t.boolean  "reset_approvals_on_push",            default: true
+    t.integer  "commit_count",                       default: 0
+    t.boolean  "merge_requests_ff_only_enabled",     default: false
     t.text     "issues_template"
-    t.boolean  "mirror",                           default: false,    null: false
+    t.boolean  "mirror",                             default: false, null: false
     t.datetime "mirror_last_update_at"
     t.datetime "mirror_last_successful_update_at"
     t.integer  "mirror_user_id"
     t.text     "import_error"
     t.integer  "ci_id"
-    t.boolean  "builds_enabled",                   default: true,     null: false
-    t.boolean  "shared_runners_enabled",           default: true,     null: false
+    t.boolean  "builds_enabled",                     default: true,  null: false
+    t.boolean  "shared_runners_enabled",             default: true,  null: false
     t.string   "runners_token"
     t.string   "build_coverage_regex"
-    t.boolean  "build_allow_git_fetch",            default: true,     null: false
-    t.integer  "build_timeout",                    default: 3600,     null: false
-    t.boolean  "mirror_trigger_builds",            default: false,    null: false
-    t.boolean  "pending_delete",                   default: false
-    t.boolean  "public_builds",                    default: true,     null: false
-    t.integer  "pushes_since_gc",                  default: 0
+    t.boolean  "build_allow_git_fetch",              default: true,  null: false
+    t.integer  "build_timeout",                      default: 3600,  null: false
+    t.boolean  "mirror_trigger_builds",              default: false, null: false
+    t.boolean  "pending_delete",                     default: false
+    t.boolean  "public_builds",                      default: true,  null: false
+    t.integer  "pushes_since_gc",                    default: 0
     t.boolean  "last_repository_check_failed"
     t.datetime "last_repository_check_at"
     t.boolean  "container_registry_enabled"