Support create table with struct

README.md

@@ -4,7 +4,6 @@ Yet Another ORM library for Go, aims for developer friendly
 
 ## TODO
 * Perimary key
-* Create table
 * Save and fill the record
 * Update
 * Delete
@@ -21,7 +20,6 @@ Yet Another ORM library for Go, aims for developer friendly
 * Soft Delete
 * After/Before Save/Update/Create/Delete
 * FindOrInitialize / FindOrCreate
-* Exec run SQL directly
 * SQL Log
 * Auto Migration
 * Index, Unique, Valiations

main.go

@@ -7,16 +7,18 @@ import (
 
 type DB struct {
 	Db     *sql.DB
+	Driver string
 }
 
 func Open(driver, source string) (db DB, err error) {
 	db.Db, err = sql.Open(driver, source)
+	db.Driver = driver
 	// SetMaxIdleConns pools
 	return
 }
 
 func (s *DB) buildORM() *Orm {
-	orm := &Orm{db: s.Db}
+	orm := &Orm{db: s.Db, driver: s.Driver}
 	return orm
 }
 

model.go

@@ -1,19 +1,43 @@
 package gorm
 
 import (
-	"regexp"
-
+	"fmt"
 	"reflect"
+	"regexp"
+	"strings"
 )
 
 type Model struct {
 	Data   interface{}
+	driver string
 }
 
-func toModel(value interface{}) *Model {
-	var model Model
-	model.Data = value
-	return &model
+type Field struct {
+	Name    string
+	Value   interface{}
+	SqlType string
+	DbName  string
+}
+
+func (s *Orm) toModel(value interface{}) *Model {
+	return &Model{Data: value, driver: s.driver}
+}
+
+func (m *Model) Fields() (fields []Field) {
+	typ := reflect.TypeOf(m.Data).Elem()
+
+	for i := 0; i < typ.NumField(); i++ {
+		p := typ.Field(i)
+		if !p.Anonymous {
+			var field Field
+			field.Name = p.Name
+			field.DbName = toSnake(p.Name)
+			field.Value = reflect.ValueOf(m.Data).Elem().FieldByName(p.Name).Interface()
+			field.SqlType = getSqlType(m.driver, field.Value, 0)
+			fields = append(fields, field)
+		}
+	}
+	return
 }
 
 func (m *Model) ColumnsAndValues() (columns []string, values []interface{}) {
@@ -47,19 +71,6 @@ func (m *Model) TableName() string {
 	return reg.ReplaceAllString(toSnake(t.Name()), "s")
 }
 
-func (m *Model) Columns() (columns []string) {
-	typ := reflect.TypeOf(m.Data).Elem()
-
-	for i := 0; i < typ.NumField(); i++ {
-		p := typ.Field(i)
-		if !p.Anonymous {
-			columns = append(columns, toSnake(p.Name))
-		}
-	}
-
-	return
-}
-
 func (model *Model) MissingColumns() (results []string) {
 	return
 }
@@ -67,3 +78,17 @@ func (model *Model) MissingColumns() (results []string) {
 func (model *Model) ColumnType(column string) (result string) {
 	return
 }
+
+func (model *Model) CreateTable() (sql string) {
+	var sqls []string
+	for _, field := range model.Fields() {
+		sqls = append(sqls, field.DbName+" "+field.SqlType)
+	}
+
+	sql = fmt.Sprintf(
+		"CREATE TABLE \"%v\" (%v)",
+		model.TableName(),
+		strings.Join(sqls, ","),
+	)
+	return
+}

orm.go

@@ -16,6 +16,7 @@ type Orm struct {
 	Model      *Model
 
 	db          *sql.DB
+	driver      string
 	whereClause []map[string]interface{}
 	selectStr   string
 	orderStr    string
@@ -25,7 +26,7 @@ type Orm struct {
 }
 
 func (s *Orm) setModel(model interface{}) (err error) {
-	s.Model = toModel(model)
+	s.Model = s.toModel(model)
 	s.TableName = s.Model.TableName()
 	s.PrimaryKey = "id"
 	return
@@ -130,5 +131,6 @@ func (s *Orm) Not(querystring interface{}, args ...interface{}) *Orm {
 }
 
 func (s *Orm) CreateTable(value interface{}) *Orm {
+	s.explain(value, "CreateTable").Exec()
 	return s
 }

orm_test.go

@@ -4,6 +4,7 @@ import "testing"
 
 type User struct {
 	Name string
+	Id   int64
 }
 
 func getDB() DB {
@@ -55,3 +56,13 @@ func TestWhere(t *testing.T) {
 		t.Errorf("Shouldn't return error when looking for unexist records, %+v", users)
 	}
 }
+
+func TestCreateTable(t *testing.T) {
+	db := getDB()
+	db.Exec("drop table users;")
+
+	orm := db.CreateTable(&User{})
+	if orm.Error != nil {
+		t.Errorf("No error should raise when create table, but got %+v", orm.Error)
+	}
+}

sql.go

@@ -18,7 +18,7 @@ func (s *Orm) explain(value interface{}, operation string) *Orm {
 	case "Query":
 		s.querySql(value)
 	case "CreateTable":
-		s.createTableSql(value)
+		s.Sql = s.Model.CreateTable()
 	}
 	return s
 }
@@ -103,12 +103,3 @@ func (s *Orm) whereSql() (sql string) {
 	}
 	return
 }
-
-func (s *Orm) createTableSql(value interface{}) {
-	s.Sql = fmt.Sprintf(
-		"CREATE TABLE \"%v\" (%v)",
-		s.TableName,
-		"",
-	)
-	return
-}

utils.go

@@ -7,6 +7,7 @@ import (
 	"strings"
 )
 
+// FIXME
 func valuesToBinVar(values []interface{}) string {
 	var sqls []string
 	for index, _ := range values {