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11_fix_annotations_migrations_route.go
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11_fix_annotations_migrations_route.go
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package migrations
import (
"context"
"github.com/fnproject/fn/api/datastore/sql/migratex"
"github.com/jmoiron/sqlx"
)
func up11(ctx context.Context, tx *sqlx.Tx) error {
// clear out any old null values
// on mysql this may result in some in-flight changes being missed and an error on the alter table below
_, err := tx.ExecContext(ctx, `UPDATE routes set annotations=(CASE WHEN annotations IS NULL THEN '' ELSE annotations END);`)
if err != nil {
return err
}
switch tx.DriverName() {
case "mysql":
// this implicitly commits but its the last command so should be safe.
_, err := tx.ExecContext(ctx, "ALTER TABLE routes MODIFY annotations TEXT NOT NULL;")
return err
case "postgres", "pgx":
_, err := tx.ExecContext(ctx, "ALTER TABLE routes ALTER COLUMN annotations DROP NOT NULL;")
return err
default:
_, err := tx.ExecContext(ctx, "ALTER TABLE routes RENAME TO old_routes;")
if err != nil {
return err
}
newTable := `CREATE TABLE routes (
app_id varchar(256) NOT NULL,
path varchar(256) NOT NULL,
image varchar(256) NOT NULL,
format varchar(16) NOT NULL,
memory int NOT NULL,
cpus int,
timeout int NOT NULL,
idle_timeout int NOT NULL,
type varchar(16) NOT NULL,
headers text NOT NULL,
config text NOT NULL,
annotations text NOT NULL,
created_at text,
updated_at varchar(256),
PRIMARY KEY (app_id, path)
);`
_, err = tx.ExecContext(ctx, newTable)
if err != nil {
return err
}
insertQuery := `INSERT INTO routes(app_id,path,image,format,memory,cpus,timeout,idle_timeout,type,headers,config,annotations,created_at,updated_at)
SELECT app_id,path,image,format,memory,cpus,timeout,idle_timeout,type,headers,config,annotations,created_at,updated_at FROM old_routes;`
_, err = tx.ExecContext(ctx, insertQuery)
if err != nil {
return err
}
_, err = tx.ExecContext(ctx, "DROP TABLE old_routes;")
if err != nil {
return err
}
return err
}
}
func down11(ctx context.Context, tx *sqlx.Tx) error {
// annotations are in an indeterminate state so we leave this change as it is
return nil
}
func init() {
Migrations = append(Migrations, &migratex.MigFields{
VersionFunc: vfunc(11),
UpFunc: up11,
DownFunc: down11,
})
}