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Add renderform template function
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parent
e47b2b677d
commit
9e1d5036f7
@ -31,6 +31,7 @@ func init() {
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beegoTplFuncMap["str2html"] = Str2html
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beegoTplFuncMap["htmlquote"] = Htmlquote
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beegoTplFuncMap["htmlunquote"] = Htmlunquote
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beegoTplFuncMap["renderform"] = RenderForm
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}
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// AddFuncMap let user to register a func in the template
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67
utils.go
67
utils.go
@ -178,7 +178,7 @@ func inSlice(v string, sl []string) bool {
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func ParseForm(form url.Values, obj interface{}) error {
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objT := reflect.TypeOf(obj)
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objV := reflect.ValueOf(obj)
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if !(objT.Kind() == reflect.Ptr && objT.Elem().Kind() == reflect.Struct) {
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if !isStructPtr(objT) {
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return fmt.Errorf("%v must be a struct pointer", obj)
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}
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objT = objT.Elem()
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@ -189,8 +189,8 @@ func ParseForm(form url.Values, obj interface{}) error {
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if !fieldV.CanSet() {
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continue
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}
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fieldT := objT.Field(i)
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fieldT := objT.Field(i)
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tags := strings.Split(fieldT.Tag.Get("form"), ",")
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var tag string
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if len(tags) == 0 || len(tags[0]) == 0 {
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@ -238,6 +238,69 @@ func ParseForm(form url.Values, obj interface{}) error {
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return nil
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}
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// form types for RenderForm function
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var FormType = map[string]bool{
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"text": true,
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"textarea": true,
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"hidden": true,
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"password": true,
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}
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var unKind = map[reflect.Kind]bool{
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reflect.Uintptr: true,
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reflect.Complex64: true,
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reflect.Complex128: true,
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reflect.Array: true,
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reflect.Chan: true,
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reflect.Func: true,
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reflect.Map: true,
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reflect.Ptr: true,
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reflect.Slice: true,
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reflect.Struct: true,
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reflect.UnsafePointer: true,
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}
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// obj must be a struct pointer
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func RenderForm(obj interface{}) template.HTML {
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objT := reflect.TypeOf(obj)
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objV := reflect.ValueOf(obj)
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if !isStructPtr(objT) {
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return template.HTML("")
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}
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objT = objT.Elem()
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objV = objV.Elem()
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var raw []string
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for i := 0; i < objT.NumField(); i++ {
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fieldV := objV.Field(i)
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if !fieldV.CanSet() || unKind[fieldV.Kind()] {
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continue
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}
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fieldT := objT.Field(i)
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tags := strings.Split(fieldT.Tag.Get("form"), ",")
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name := fieldT.Name
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if len(tags) < 2 {
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if len(tags) == 1 && len(tags[0]) > 0 {
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name = tags[0]
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}
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raw = append(raw, fmt.Sprintf(`%v: <input name="%v" type="text" value="%v">`,
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fieldT.Name, name, fieldV.Interface()))
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} else {
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if len(tags[0]) > 0 {
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name = tags[0]
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}
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raw = append(raw, fmt.Sprintf(`%v: <input name="%v" type="%v" value="%v">`,
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fieldT.Name, name, tags[1], fieldV.Interface()))
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}
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}
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return template.HTML(strings.Join(raw, "</br>"))
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}
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func isStructPtr(t reflect.Type) bool {
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return t.Kind() == reflect.Ptr && t.Elem().Kind() == reflect.Struct
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}
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func stringsToJson(str string) string {
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rs := []rune(str)
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jsons := ""
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@ -1,6 +1,7 @@
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package beego
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import (
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"html/template"
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"net/url"
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"testing"
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"time"
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@ -144,3 +145,29 @@ func TestParseForm(t *testing.T) {
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t.Errorf("Intro should equal `I am an engineer!` but got `%v`", u.Intro)
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}
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}
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func TestRenderForm(t *testing.T) {
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type user struct {
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Id int
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tag string `form:tag`
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Name interface{} `form:"username"`
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Age int `form:"age,text"`
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Email []string
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Intro string `form:",textarea"`
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}
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u := user{Name: "test"}
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output := RenderForm(u)
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if output != template.HTML("") {
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t.Errorf("output should be empty but got %v", output)
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}
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output = RenderForm(&u)
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result := template.HTML(
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`Id: <input name="Id" type="text" value="0"></br>` +
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`Name: <input name="username" type="text" value="test"></br>` +
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`Age: <input name="age" type="text" value="0"></br>` +
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`Intro: <input name="Intro" type="textarea" value="">`)
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if output != result {
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t.Errorf("output should equal `%v` but got `%v`", result, output)
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}
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}
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