57 lines
1.3 KiB
Go
57 lines
1.3 KiB
Go
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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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"github.com/jackc/pgx/v5"
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)
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func init() {
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registerMigration(AddFollower{})
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}
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type AddFollower struct{}
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func (m AddFollower) Version() types.MigrationVersion {
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return types.MigrationVersion(time.Date(2024, 5, 16, 19, 41, 34, 0, time.UTC))
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}
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func (m AddFollower) Name() string {
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return "AddFollower"
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}
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func (m AddFollower) Description() string {
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return "Add follower table"
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}
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func (m AddFollower) Up(ctx context.Context, tx pgx.Tx) error {
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_, err := tx.Exec(ctx,
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`
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CREATE TABLE follower (
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user_id int NOT NULL,
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following_user_id int REFERENCES hmn_user (id) ON DELETE CASCADE,
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following_project_id int REFERENCES project (id) ON DELETE CASCADE
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);
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CREATE INDEX follower_user_id ON follower(user_id);
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CREATE UNIQUE INDEX follower_following_user ON follower (user_id, following_user_id);
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CREATE UNIQUE INDEX follower_following_project ON follower (user_id, following_project_id);
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`,
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)
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return err
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}
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func (m AddFollower) Down(ctx context.Context, tx pgx.Tx) error {
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_, err := tx.Exec(ctx,
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`
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DROP INDEX follower_following_user;
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DROP INDEX follower_following_project;
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DROP INDEX follower_user_id;
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DROP TABLE follower;
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`,
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)
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return err
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}
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