1package dialectquery
 2
 3import "fmt"
 4
 5type Sqlite3 struct{}
 6
 7var _ Querier = (*Sqlite3)(nil)
 8
 9func (s *Sqlite3) CreateTable(tableName string) string {
10	q := `CREATE TABLE %s (
11		id INTEGER PRIMARY KEY AUTOINCREMENT,
12		version_id INTEGER NOT NULL,
13		is_applied INTEGER NOT NULL,
14		tstamp TIMESTAMP DEFAULT (datetime('now'))
15	)`
16	return fmt.Sprintf(q, tableName)
17}
18
19func (s *Sqlite3) InsertVersion(tableName string) string {
20	q := `INSERT INTO %s (version_id, is_applied) VALUES (?, ?)`
21	return fmt.Sprintf(q, tableName)
22}
23
24func (s *Sqlite3) DeleteVersion(tableName string) string {
25	q := `DELETE FROM %s WHERE version_id=?`
26	return fmt.Sprintf(q, tableName)
27}
28
29func (s *Sqlite3) GetMigrationByVersion(tableName string) string {
30	q := `SELECT tstamp, is_applied FROM %s WHERE version_id=? ORDER BY tstamp DESC LIMIT 1`
31	return fmt.Sprintf(q, tableName)
32}
33
34func (s *Sqlite3) ListMigrations(tableName string) string {
35	q := `SELECT version_id, is_applied from %s ORDER BY id DESC`
36	return fmt.Sprintf(q, tableName)
37}
38
39func (s *Sqlite3) GetLatestVersion(tableName string) string {
40	q := `SELECT MAX(version_id) FROM %s`
41	return fmt.Sprintf(q, tableName)
42}