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testfixtures.go
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testfixtures.go
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package testfixtures
import (
"database/sql"
"fmt"
"io/ioutil"
"path"
"path/filepath"
"strings"
"gopkg.in/yaml.v2"
)
type fixtureFile struct {
path string
fileName string
content []byte
}
func (f *fixtureFile) fileNameWithoutExtension() string {
return strings.Replace(f.fileName, filepath.Ext(f.fileName), "", 1)
}
func (f *fixtureFile) delete(tx *sql.Tx, h DataBaseHelper) error {
_, err := tx.Exec(fmt.Sprintf("DELETE FROM %s", h.quoteKeyword(f.fileNameWithoutExtension())))
return err
}
func (f *fixtureFile) insert(tx *sql.Tx, h DataBaseHelper) error {
var rows []interface{}
err := yaml.Unmarshal(f.content, &rows)
if err != nil {
return err
}
for _, row := range rows {
record := row.(map[interface{}]interface{})
var values []interface{}
sqlColumns := ""
sqlValues := ""
i := 1
for key, value := range record {
if len(sqlColumns) > 0 {
sqlColumns += ", "
sqlValues += ", "
}
sqlColumns += h.quoteKeyword(key.(string))
switch h.paramType() {
case paramTypeDollar:
sqlValues += fmt.Sprintf("$%d", i)
case paramTypeQuestion:
sqlValues += "?"
case paramTypeColon:
if isDateTime(value) {
sqlValues += fmt.Sprintf("to_date(:%d, 'YYYY-MM-DD HH24:MI:SS')", i)
} else if isDate(value) {
sqlValues += fmt.Sprintf("to_date(:%d, 'YYYY-MM-DD')", i)
} else if isTime(value) {
sqlValues += fmt.Sprintf("to_date(:%d, 'HH24:MI:SS')", i)
} else {
sqlValues += fmt.Sprintf(":%d", i)
}
}
i++
values = append(values, value)
}
sql := fmt.Sprintf("INSERT INTO %s (%s) VALUES (%s)", h.quoteKeyword(f.fileNameWithoutExtension()), sqlColumns, sqlValues)
_, err = tx.Exec(sql, values...)
if err != nil {
return err
}
}
return nil
}
func getYmlFiles(foldername string) ([]*fixtureFile, error) {
var files []*fixtureFile
fileinfos, err := ioutil.ReadDir(foldername)
if err != nil {
return nil, err
}
for _, fileinfo := range fileinfos {
if !fileinfo.IsDir() && filepath.Ext(fileinfo.Name()) == ".yml" {
fixture := &fixtureFile{
path: path.Join(foldername, fileinfo.Name()),
fileName: fileinfo.Name(),
}
fixture.content, err = ioutil.ReadFile(fixture.path)
if err != nil {
return nil, err
}
files = append(files, fixture)
}
}
return files, nil
}
// LoadFixtureFiles load all specified fixtures files into database:
// LoadFixtureFiles(db, &PostgreSQLHelper{},
// "fixtures/customers.yml", "fixtures/orders.yml")
// // add as many files you want
func LoadFixtureFiles(db *sql.DB, h DataBaseHelper, files ...string) error {
var fixtureFiles []*fixtureFile
var err error
for _, f := range files {
fixture := &fixtureFile{
path: f,
fileName: filepath.Base(f),
}
fixture.content, err = ioutil.ReadFile(fixture.path)
if err != nil {
return err
}
fixtureFiles = append(fixtureFiles, fixture)
}
return loadFixtures(db, h, fixtureFiles...)
}
// LoadFixtures loads all fixtures in a given folder into the database:
// LoadFixtures("myfixturesfolder", db, &PostgreSQLHelper{})
func LoadFixtures(foldername string, db *sql.DB, h DataBaseHelper) error {
fixturesFiles, err := getYmlFiles(foldername)
if err != nil {
return err
}
return loadFixtures(db, h, fixturesFiles...)
}
func loadFixtures(db *sql.DB, h DataBaseHelper, fixturesFiles ...*fixtureFile) error {
if !skipDatabaseNameCheck {
if !dbnameRegexp.MatchString(h.databaseName(db)) {
return errNotTestDatabase
}
}
err := h.disableReferentialIntegrity(db, func(tx *sql.Tx) error {
for _, file := range fixturesFiles {
err := file.delete(tx, h)
if err != nil {
return err
}
err = h.whileInsertOnTable(tx, file.fileNameWithoutExtension(), func() error {
return file.insert(tx, h)
})
if err != nil {
return err
}
}
return nil
})
return err
}