diff options
author | Douglas Barbosa Alexandre <dbalexandre@gmail.com> | 2016-10-14 22:12:07 +0300 |
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committer | Douglas Barbosa Alexandre <dbalexandre@gmail.com> | 2016-10-19 19:58:27 +0300 |
commit | 297892011330ecdd2fa7cbe47fbc6fd4f3b62171 (patch) | |
tree | 6cbbb21eae4f3fa3d28b33599a0ea87fbf0f34ec /db/migrate/20161014173530_create_label_priorities.rb | |
parent | de9d3915d249a59e65226f6dd2ebe1f50a47306e (diff) |
Add LabelPriority model
Diffstat (limited to 'db/migrate/20161014173530_create_label_priorities.rb')
-rw-r--r-- | db/migrate/20161014173530_create_label_priorities.rb | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/db/migrate/20161014173530_create_label_priorities.rb b/db/migrate/20161014173530_create_label_priorities.rb new file mode 100644 index 00000000000..f9d94ebdc70 --- /dev/null +++ b/db/migrate/20161014173530_create_label_priorities.rb @@ -0,0 +1,55 @@ +class CreateLabelPriorities < ActiveRecord::Migration + include Gitlab::Database::MigrationHelpers + + DOWNTIME = true + DOWNTIME_REASON = 'Prioritezed labels will not work as expected until this migration is complete.' + + disable_ddl_transaction! + + def up + create_table :label_priorities do |t| + t.references :project, foreign_key: { on_delete: :cascade }, null: false + t.references :label, foreign_key: { on_delete: :cascade }, null: false + t.integer :priority, null: false + + t.timestamps null: false + end + + execute <<-EOF.strip_heredoc + INSERT INTO label_priorities (project_id, label_id, priority, created_at, updated_at) + SELECT labels.project_id, labels.id, labels.priority, NOW(), NOW() + FROM labels + WHERE labels.project_id IS NOT NULL + AND labels.priority IS NOT NULL; + EOF + + add_concurrent_index :label_priorities, [:project_id, :label_id], unique: true + add_concurrent_index :label_priorities, :priority + + remove_column :labels, :priority + end + + def down + add_column :labels, :priority, :integer + + if Gitlab::Database.mysql? + execute <<-EOF.strip_heredoc + UPDATE labels + INNER JOIN label_priorities ON labels.id = label_priorities.label_id AND labels.project_id = label_priorities.project_id + SET labels.priority = label_priorities.priority; + EOF + else + execute <<-EOF.strip_heredoc + UPDATE labels + SET priority = label_priorities.priority + FROM label_priorities + WHERE labels.id = label_priorities.label_id + AND labels.project_id = label_priorities.project_id; + EOF + end + + add_concurrent_index :labels, :priority + + drop_table :label_priorities + end +end |