hmn/src/migration/migrations/2021-09-22T182718Z_AddHandm...

65 lines
1.7 KiB
Go

package migrations
import (
"context"
"time"
"git.handmade.network/hmn/hmn/src/migration/types"
"git.handmade.network/hmn/hmn/src/oops"
"github.com/jackc/pgx/v5"
)
func init() {
registerMigration(AddHandmadePostAssetUsage{})
}
type AddHandmadePostAssetUsage struct{}
func (m AddHandmadePostAssetUsage) Version() types.MigrationVersion {
return types.MigrationVersion(time.Date(2021, 9, 22, 18, 27, 18, 0, time.UTC))
}
func (m AddHandmadePostAssetUsage) Name() string {
return "AddHandmadePostAssetUsage"
}
func (m AddHandmadePostAssetUsage) Description() string {
return "Add table for tracking asset usage in posts, and a unique index on handmade_asset.s3_key"
}
func (m AddHandmadePostAssetUsage) Up(ctx context.Context, tx pgx.Tx) error {
_, err := tx.Exec(ctx,
`
CREATE TABLE handmade_post_asset_usage (
post_id INTEGER NOT NULL REFERENCES handmade_post(id) ON DELETE CASCADE,
asset_id UUID NOT NULL REFERENCES handmade_asset(id) ON DELETE CASCADE,
CONSTRAINT handmade_post_asset_usage_unique UNIQUE(post_id, asset_id)
);
CREATE INDEX handmade_post_asset_usage_post_id ON handmade_post_asset_usage(post_id);
CREATE INDEX handmade_post_asset_usage_asset_id ON handmade_post_asset_usage(asset_id);
ALTER TABLE handmade_asset
ADD CONSTRAINT handmade_asset_s3_key UNIQUE(s3_key);
`,
)
if err != nil {
return oops.New(err, "failed to add table and indexes")
}
return nil
}
func (m AddHandmadePostAssetUsage) Down(ctx context.Context, tx pgx.Tx) error {
_, err := tx.Exec(ctx,
`
DROP INDEX handmade_post_asset_usage_post_id;
DROP INDEX handmade_post_asset_usage_asset_id;
DROP TABLE handmade_post_asset_usage;
`,
)
if err != nil {
return oops.New(err, "failed to drop table and indexes")
}
return nil
}