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When multiple databases have the same table name and column names, automigrate doesn't work

This commit is contained in:
Felix Sun 2014-04-25 00:38:40 +08:00
parent fd3ce3b39a
commit 1ff3c79c75
3 changed files with 17 additions and 5 deletions
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5
main.go
View File

@ -2,7 +2,6 @@ package gorm
import (
"database/sql"
"github.com/jinzhu/gorm/dialect"
)
@ -18,11 +17,13 @@ type DB struct {
dialect dialect.Dialect
tagIdentifier string
singularTable bool
source string
}
func Open(driver, source string) (DB, error) {
var err error
db := DB{dialect: dialect.New(driver), tagIdentifier: "sql", logger: defaultLogger, callback: DefaultCallback}
db := DB{dialect: dialect.New(driver), tagIdentifier: "sql", logger: defaultLogger, callback: DefaultCallback, source: source}
db.db, err = sql.Open(driver, source)
db.parent = &db
return db, err

2
main_private.go
View File

@ -6,7 +6,7 @@ import (
)
func (s *DB) clone() *DB {
db := DB{db: s.db, parent: s.parent, logMode: s.logMode, Value: s.Value, Error: s.Error}
db := DB{db: s.db, parent: s.parent, logMode: s.logMode, Value: s.Value, Error: s.Error, source: s.source}
if s.search == nil {
db.search = &search{}

15
scope_private.go
View File

@ -447,8 +447,18 @@ func (scope *Scope) removeIndex(indexName string) {
}
func (scope *Scope) autoMigrate() *Scope {
// scope.db.source sample: root:@/testdatabase?parseTime=true
from := strings.Index(scope.db.source, "/")
to := strings.Index(scope.db.source, "?")
if to == -1 {
to = len(scope.db.source)
}
databaseName := scope.db.source[from:to]
var tableName string
scope.Raw(fmt.Sprintf("SELECT table_name FROM INFORMATION_SCHEMA.tables where table_name = %v", scope.AddToVars(scope.TableName())))
scope.Raw(fmt.Sprintf("SELECT table_name FROM INFORMATION_SCHEMA.tables where table_schema = %v AND table_name = %v",
scope.AddToVars(databaseName),
scope.AddToVars(scope.TableName())))
scope.DB().QueryRow(scope.Sql, scope.SqlVars...).Scan(&tableName)
scope.SqlVars = []interface{}{}
@ -458,7 +468,8 @@ func (scope *Scope) autoMigrate() *Scope {
} else {
for _, field := range scope.Fields() {
var column, data string
scope.Raw(fmt.Sprintf("SELECT column_name, data_type FROM information_schema.columns WHERE table_name = %v and column_name = %v",
scope.Raw(fmt.Sprintf("SELECT column_name, data_type FROM information_schema.columns WHERE table_schema = %v AND table_name = %v AND column_name = %v",
scope.AddToVars(databaseName),
scope.AddToVars(scope.TableName()),
scope.AddToVars(field.DBName),
))