Files
gf/g/frame/gmvc/view.go

70 lines
2.0 KiB
Go

// Copyright 2017 gf Author(https://gitee.com/johng/gf). All Rights Reserved.
//
// This Source Code Form is subject to the terms of the MIT License.
// If a copy of the MIT was not distributed with this file,
// You can obtain one at https://gitee.com/johng/gf.
package gmvc
import (
"sync"
"gitee.com/johng/gf/g/os/gview"
"gitee.com/johng/gf/g/net/ghttp"
"gitee.com/johng/gf/g/frame/gins"
)
// MVC视图基类(一个请求一个视图对象,用完即销毁)
type View struct {
mu sync.RWMutex // 并发互斥锁
view *gview.View // 底层视图对象
data map[string]interface{} // 视图数据
response *ghttp.Response // 数据返回对象
}
// 创建一个MVC请求中使用的视图对象
func NewView(w *ghttp.Response) *View {
return &View{
view : gins.View(),
data : make(map[string]interface{}),
response : w,
}
}
// 批量绑定模板变量,即调用之后每个线程都会生效,因此有并发安全控制
func (view *View) Assigns(data map[string]interface{}) {
view.mu.Lock()
defer view.mu.Unlock()
for k, v := range data {
view.data[k] = v
}
}
// 绑定模板变量,即调用之后每个线程都会生效,因此有并发安全控制
func (view *View) Assign(key string, value interface{}) {
view.mu.Lock()
defer view.mu.Unlock()
view.data[key] = value
}
// 解析模板,并返回解析后的内容
func (view *View) Parse(file string) ([]byte, error) {
view.mu.RLock()
content, err := view.view.Parse(file, view.data)
view.mu.RUnlock()
return content, err
}
// 解析指定模板
func (view *View) Display(files...string) error {
file := "index.tpl"
if len(files) > 0 {
file = files[0]
}
if content, err := view.Parse(file); err != nil {
view.response.WriteString("Tpl Parsing Error: " + err.Error())
return err
} else {
view.response.Write(content)
}
return nil
}