132 lines
2.8 KiB
Go
132 lines
2.8 KiB
Go
package testfixtures
|
|
|
|
import (
|
|
"database/sql"
|
|
"fmt"
|
|
"strings"
|
|
)
|
|
|
|
// Oracle is the Oracle database helper for this package
|
|
type Oracle struct {
|
|
baseHelper
|
|
|
|
enabledConstraints []oracleConstraint
|
|
sequences []string
|
|
}
|
|
|
|
type oracleConstraint struct {
|
|
tableName string
|
|
constraintName string
|
|
}
|
|
|
|
func (h *Oracle) init(db *sql.DB) error {
|
|
var err error
|
|
|
|
h.enabledConstraints, err = h.getEnabledConstraints(db)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
h.sequences, err = h.getSequences(db)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (*Oracle) paramType() int {
|
|
return paramTypeColon
|
|
}
|
|
|
|
func (*Oracle) quoteKeyword(str string) string {
|
|
return fmt.Sprintf("\"%s\"", strings.ToUpper(str))
|
|
}
|
|
|
|
func (*Oracle) databaseName(db *sql.DB) (dbName string) {
|
|
db.QueryRow("SELECT user FROM DUAL").Scan(&dbName)
|
|
return
|
|
}
|
|
|
|
func (*Oracle) getEnabledConstraints(db *sql.DB) ([]oracleConstraint, error) {
|
|
constraints := make([]oracleConstraint, 0)
|
|
rows, err := db.Query(`
|
|
SELECT table_name, constraint_name
|
|
FROM user_constraints
|
|
WHERE constraint_type = 'R'
|
|
AND status = 'ENABLED'
|
|
`)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer rows.Close()
|
|
for rows.Next() {
|
|
var constraint oracleConstraint
|
|
rows.Scan(&constraint.tableName, &constraint.constraintName)
|
|
constraints = append(constraints, constraint)
|
|
}
|
|
return constraints, nil
|
|
}
|
|
|
|
func (*Oracle) getSequences(db *sql.DB) ([]string, error) {
|
|
sequences := make([]string, 0)
|
|
rows, err := db.Query("SELECT sequence_name FROM user_sequences")
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
defer rows.Close()
|
|
for rows.Next() {
|
|
var sequence string
|
|
rows.Scan(&sequence)
|
|
sequences = append(sequences, sequence)
|
|
}
|
|
return sequences, nil
|
|
}
|
|
|
|
func (h *Oracle) resetSequences(db *sql.DB) error {
|
|
for _, sequence := range h.sequences {
|
|
_, err := db.Exec(fmt.Sprintf("DROP SEQUENCE %s", h.quoteKeyword(sequence)))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
_, err = db.Exec(fmt.Sprintf("CREATE SEQUENCE %s START WITH %d", h.quoteKeyword(sequence), resetSequencesTo))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (h *Oracle) disableReferentialIntegrity(db *sql.DB, loadFn loadFunction) error {
|
|
// re-enable after load
|
|
defer func() {
|
|
for _, c := range h.enabledConstraints {
|
|
db.Exec(fmt.Sprintf("ALTER TABLE %s ENABLE CONSTRAINT %s", h.quoteKeyword(c.tableName), h.quoteKeyword(c.constraintName)))
|
|
}
|
|
}()
|
|
|
|
// disable foreign keys
|
|
for _, c := range h.enabledConstraints {
|
|
_, err := db.Exec(fmt.Sprintf("ALTER TABLE %s DISABLE CONSTRAINT %s", h.quoteKeyword(c.tableName), h.quoteKeyword(c.constraintName)))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
tx, err := db.Begin()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if err = loadFn(tx); err != nil {
|
|
tx.Rollback()
|
|
return err
|
|
}
|
|
|
|
if err = tx.Commit(); err != nil {
|
|
return err
|
|
}
|
|
|
|
return h.resetSequences(db)
|
|
}
|