Fix null source_project_id in pool_repositories

Due to a bug, some pool_repositories in production have a null
source_project_id column. This migration aims to fix those rows.

1 files changed, 19 insertions, 0 deletions

diff --git a/db/migrate/20190604184643_fix_pool_repository_source_project_id.rb b/db/migrate/20190604184643_fix_pool_repository_source_project_id.rb
new file mode 100644
index 00000000000..30244760e6b
--- /dev/null
+++ b/db/migrate/20190604184643_fix_pool_repository_source_project_id.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class FixPoolRepositorySourceProjectId < ActiveRecord::Migration[5.1]
+  include Gitlab::Database::MigrationHelpers
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  def up
+    execute "UPDATE pool_repositories SET source_project_id = (SELECT MIN(id) FROM projects WHERE pool_repository_id = pool_repositories.id) WHERE pool_repositories.source_project_id IS NULL"
+  end
+
+  def down
+    # nothing to do her
+  end
+end