91 lines
1.9 KiB
Go
91 lines
1.9 KiB
Go
package migrations
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import (
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"context"
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"fmt"
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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(DeleteStaticPages{})
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}
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type DeleteStaticPages struct{}
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func (m DeleteStaticPages) Version() types.MigrationVersion {
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return types.MigrationVersion(time.Date(2021, 4, 26, 0, 0, 0, 0, time.UTC))
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}
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func (m DeleteStaticPages) Name() string {
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return "DeleteStaticPages"
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}
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func (m DeleteStaticPages) Description() string {
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return "Delete static page posts"
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}
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func (m DeleteStaticPages) Up(ctx context.Context, tx pgx.Tx) error {
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res, err := tx.Exec(ctx,
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`
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ALTER TABLE handmade_project
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DROP static_id;
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`,
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)
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if err != nil {
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return oops.New(err, "failed to drop static_id column")
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}
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res, err = tx.Exec(ctx,
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`
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DELETE FROM handmade_post
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WHERE id IN (
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SELECT post.id
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FROM
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handmade_post AS post
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LEFT JOIN handmade_thread AS thread ON post.thread_id = thread.id
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LEFT JOIN handmade_category AS threadcat ON thread.category_id = threadcat.id
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LEFT JOIN handmade_category AS postcat ON post.category_id = postcat.id
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WHERE
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threadcat.kind = 3
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OR postcat.kind = 3
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);
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`,
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)
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if err != nil {
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return oops.New(err, "failed to delete the posts")
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}
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fmt.Printf("Deleted %v static pages.\n", res.RowsAffected())
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_, err = tx.Exec(ctx,
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`
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DELETE FROM handmade_thread
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WHERE id IN (
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SELECT thread.id
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FROM
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handmade_thread AS thread
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JOIN handmade_category AS cat ON thread.category_id = cat.id
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WHERE
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cat.kind = 3
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);
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`,
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)
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if err != nil {
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return oops.New(err, "failed to delete the threads")
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}
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_, err = tx.Exec(ctx, `DELETE FROM handmade_category WHERE kind = 3`)
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if err != nil {
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return oops.New(err, "failed to delete the categories")
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}
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return nil
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}
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func (m DeleteStaticPages) Down(ctx context.Context, tx pgx.Tx) error {
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panic("Implement me")
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}
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