class MigrateProjectFeatures < ActiveRecord::Migration include Gitlab::Database::MigrationHelpers DOWNTIME = true DOWNTIME_REASON = <<-EOT.freeze Migrating issues_enabled, merge_requests_enabled, wiki_enabled, builds_enabled, snippets_enabled fields from projects to a new table called project_features. EOT def up sql = %Q{ INSERT INTO project_features(project_id, issues_access_level, merge_requests_access_level, wiki_access_level, builds_access_level, snippets_access_level, created_at, updated_at) SELECT id AS project_id, CASE WHEN issues_enabled IS true THEN 20 ELSE 0 END AS issues_access_level, CASE WHEN merge_requests_enabled IS true THEN 20 ELSE 0 END AS merge_requests_access_level, CASE WHEN wiki_enabled IS true THEN 20 ELSE 0 END AS wiki_access_level, CASE WHEN builds_enabled IS true THEN 20 ELSE 0 END AS builds_access_level, CASE WHEN snippets_enabled IS true THEN 20 ELSE 0 END AS snippets_access_level, created_at, updated_at FROM projects } execute(sql) end def down sql = %Q{ UPDATE projects SET issues_enabled = COALESCE((SELECT CASE WHEN issues_access_level = 20 THEN true ELSE false END AS issues_enabled FROM project_features WHERE project_features.project_id = projects.id), true), merge_requests_enabled = COALESCE((SELECT CASE WHEN merge_requests_access_level = 20 THEN true ELSE false END AS merge_requests_enabled FROM project_features WHERE project_features.project_id = projects.id),true), wiki_enabled = COALESCE((SELECT CASE WHEN wiki_access_level = 20 THEN true ELSE false END AS wiki_enabled FROM project_features WHERE project_features.project_id = projects.id), true), builds_enabled = COALESCE((SELECT CASE WHEN builds_access_level = 20 THEN true ELSE false END AS builds_enabled FROM project_features WHERE project_features.project_id = projects.id), true), snippets_enabled = COALESCE((SELECT CASE WHEN snippets_access_level = 20 THEN true ELSE false END AS snippets_enabled FROM project_features WHERE project_features.project_id = projects.id),true) } execute(sql) end end