grafana/pkg/services/sqlstore/migrations/folder_mig.go

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package migrations
import (
"github.com/grafana/grafana/pkg/services/folder"
"github.com/grafana/grafana/pkg/services/sqlstore/migrator"
)
// nolint:unused // this is temporarily unused during feature development
func addFolderMigrations(mg *migrator.Migrator) {
mg.AddMigration("create folder table", migrator.NewAddTableMigration(folderv1()))
// copy any existing folders in the dashboard table into the new folder
// table. The *legacy* parent folder ID, stored as folder_id in the
// dashboard table, is always going to be "0" so it is safe to convert to a parent UID.
mg.AddMigration("copy existing folders from dashboard table", migrator.NewRawSQLMigration(
"INSERT INTO folder (id, uid, org_id, title, parent_uid, created, updated) SELECT id, uid, org_id, title, folder_id, created, updated FROM dashboard WHERE is_folder = 1;",
).Postgres("INSERT INTO folder (id, uid, org_id, title, parent_uid, created, updated) SELECT id, uid, org_id, title, folder_id, created, updated FROM dashboard WHERE is_folder = true;"))
mg.AddMigration("Add index for parent_uid", migrator.NewAddIndexMigration(folderv1(), &migrator.Index{
Cols: []string{"parent_uid", "org_id"},
}))
}
// nolint:unused // this is temporarily unused during feature development
func folderv1() migrator.Table {
return migrator.Table{
Name: "folder",
Columns: []*migrator.Column{
{Name: "id", Type: migrator.DB_BigInt, IsPrimaryKey: true, IsAutoIncrement: true},
{Name: "uid", Type: migrator.DB_NVarchar, Length: 40},
{Name: "org_id", Type: migrator.DB_BigInt, Nullable: false},
{Name: "title", Type: migrator.DB_NVarchar, Length: 255, Nullable: false},
{Name: "description", Type: migrator.DB_NVarchar, Length: 255, Nullable: true},
{Name: "parent_uid", Type: migrator.DB_NVarchar, Length: 40, Default: folder.GeneralFolderUID},
{Name: "created", Type: migrator.DB_DateTime, Nullable: false},
{Name: "updated", Type: migrator.DB_DateTime, Nullable: false},
},
}
}