70 lines
1.7 KiB
Go
70 lines
1.7 KiB
Go
package migrations
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import (
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"context"
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"time"
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"git.handmade.network/hmn/hmn/src/migration/types"
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"git.handmade.network/hmn/hmn/src/oops"
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"github.com/jackc/pgx/v5"
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)
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func init() {
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registerMigration(FixPostConstraints{})
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}
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type FixPostConstraints struct{}
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func (m FixPostConstraints) Version() types.MigrationVersion {
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return types.MigrationVersion(time.Date(2021, 7, 4, 22, 2, 28, 0, time.UTC))
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}
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func (m FixPostConstraints) Name() string {
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return "FixPostConstraints"
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}
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func (m FixPostConstraints) Description() string {
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return "Update post-related constraints to make insertion sane"
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}
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func (m FixPostConstraints) Up(ctx context.Context, tx pgx.Tx) error {
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_, err := tx.Exec(ctx, `
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ALTER TABLE handmade_thread
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ALTER locked SET DEFAULT FALSE,
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ALTER first_id SET NOT NULL,
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ALTER last_id SET NOT NULL;
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`)
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if err != nil {
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return oops.New(err, "failed to update thread constraints")
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}
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_, err = tx.Exec(ctx, `
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ALTER TABLE handmade_post
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ALTER deleted SET DEFAULT FALSE,
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ALTER readonly SET DEFAULT FALSE,
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ALTER CONSTRAINT handmade_post_current_id_fkey DEFERRABLE INITIALLY DEFERRED;
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`)
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if err != nil {
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return oops.New(err, "failed to update project constraints")
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}
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_, err = tx.Exec(ctx, `
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CREATE SEQUENCE handmade_postversion_id_seq
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START WITH 40000 -- this is well out of the way of existing IDs
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OWNED BY handmade_postversion.id;
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ALTER TABLE handmade_postversion
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ALTER id SET DEFAULT nextval('handmade_postversion_id_seq'),
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ALTER CONSTRAINT handmade_postversion_post_id_fkey DEFERRABLE INITIALLY DEFERRED;
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`)
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if err != nil {
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return oops.New(err, "failed to update postversion constraints")
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}
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return nil
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}
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func (m FixPostConstraints) Down(ctx context.Context, tx pgx.Tx) error {
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panic("Implement me")
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}
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