Add createDatabaseForPostgres()

object/adapter.go

@@ -15,8 +15,10 @@
 package object
 
 import (
+	"database/sql"
 	"fmt"
 	"runtime"
+	"strings"
 
 	"github.com/beego/beego"
 	"github.com/casdoor/casdoor/conf"
@@ -46,6 +48,11 @@ func InitConfig() {
 }
 
 func InitAdapter() {
+	err := createDatabaseForPostgres(conf.GetConfigString("driverName"), conf.GetConfigDataSourceName(), conf.GetConfigString("dbName"))
+	if err != nil {
+		panic(err)
+	}
+
 	adapter = NewAdapter(conf.GetConfigString("driverName"), conf.GetConfigDataSourceName(), conf.GetConfigString("dbName"))
 
 	tableNamePrefix := conf.GetConfigString("tableNamePrefix")
@@ -96,7 +103,32 @@ func NewAdapter(driverName string, dataSourceName string, dbName string) *Adapte
 	return a
 }
 
+func createDatabaseForPostgres(driverName string, dataSourceName string, dbName string) error {
+	if driverName == "postgres" {
+		db, err := sql.Open(driverName, dataSourceName)
+		if err != nil {
+			return err
+		}
+		defer db.Close()
+
+		_, err = db.Exec(fmt.Sprintf("CREATE DATABASE %s;", dbName))
+		if err != nil {
+			if !strings.Contains(err.Error(), "already exists") {
+				return err
+			}
+		}
+
+		return nil
+	} else {
+		return nil
+	}
+}
+
 func (a *Adapter) CreateDatabase() error {
+	if a.driverName == "postgres" {
+		return nil
+	}
+
 	engine, err := xorm.NewEngine(a.driverName, a.dataSourceName)
 	if err != nil {
 		return err