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42 lines
846 B
42 lines
846 B
package migrate_test
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import (
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"database/sql"
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_ "github.com/mattn/go-sqlite3"
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"github.com/remind101/migrate"
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)
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func Example() {
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migrations := []migrate.Migration{
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{
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ID: 1,
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Up: func(tx *sql.Tx) error {
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_, err := tx.Exec("CREATE TABLE people (id int)")
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return err
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},
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Down: func(tx *sql.Tx) error {
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_, err := tx.Exec("DROP TABLE people")
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return err
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},
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},
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{
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ID: 2,
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// For simple sql migrations, you can use the migrate.Queries
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// helper.
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Up: migrate.Queries([]string{
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"ALTER TABLE people ADD COLUMN first_name text",
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}),
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Down: func(tx *sql.Tx) error {
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// It's not possible to remove a column with
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// sqlite.
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_, err := tx.Exec("SELECT 1 FROM people")
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return err
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},
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},
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}
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db, _ := sql.Open("sqlite3", ":memory:")
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_ = migrate.Exec(db, migrate.Up, migrations...)
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}
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