Add topics for Gists (#413)

internal/db/db.go

@@ -144,7 +144,7 @@ func Setup(dbUri string) error {
 		return err
 	}
 
-	if err = db.AutoMigrate(&User{}, &Gist{}, &SSHKey{}, &AdminSetting{}, &Invitation{}, &WebAuthnCredential{}, &TOTP{}); err != nil {
+	if err = db.AutoMigrate(&User{}, &Gist{}, &SSHKey{}, &AdminSetting{}, &Invitation{}, &WebAuthnCredential{}, &TOTP{}, &GistTopic{}); err != nil {
 		return err
 	}
 
@@ -208,7 +208,7 @@ func setupSQLite(dbInfo databaseInfo) error {
 
 		u.Scheme = "file"
 		q := u.Query()
-		q.Set("_fk", "true")
+		q.Set("_pragma", "foreign_keys(1)")
 		q.Set("_journal_mode", journalMode)
 		u.RawQuery = q.Encode()
 		dsn = u.String()
@@ -258,5 +258,5 @@ func DeprecationDBFilename() {
 }
 
 func TruncateDatabase() error {
-	return db.Migrator().DropTable("likes", &User{}, "gists", &SSHKey{}, &AdminSetting{}, &Invitation{}, &WebAuthnCredential{}, &TOTP{})
+	return db.Migrator().DropTable("likes", &User{}, "gists", &SSHKey{}, &AdminSetting{}, &Invitation{}, &WebAuthnCredential{}, &TOTP{}, &GistTopic{})
 }