From ed3f9c1cf069a80f72224ef5ab1d5bad80caaa92 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=95=86=E8=AE=AF=E5=9C=A8=E7=BA=BF?= <swhbox@foxmail.com>
Date: Sun, 24 Aug 2014 09:30:21 +0800
Subject: [PATCH] improved
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: 商讯在线 <swhbox@foxmail.com>
---
 README.md  | 10 +++++-----
 tagfast.go | 28 ++++++++++++++++++++++------
 2 files changed, 27 insertions(+), 11 deletions(-)

diff --git a/README.md b/README.md
index 18d68c2..6844b10 100644
--- a/README.md
+++ b/README.md
@@ -19,17 +19,17 @@ type Coscms struct {
 }
 
 func main(){
-  m:=Coscms{}
+  m := Coscms{}
   t := reflect.TypeOf(m)
   for i := 0; i < t.NumField(); i++ {
-  
-    widget:=tagfast.Tag(t,i,"form_widget")
+    f := t.Field(i)
+    widget:=tagfast.Tag(t,f,"form_widget")
     fmt.Println("widget:",widget)
     
-    valid:=tagfast.Tag(t,i,"valid")
+    valid:=tagfast.Tag(t,f,"valid")
     fmt.Println("valid:",valid)
     
-    xorm:=tagfast.Tag(t,i,"xorm")
+    xorm:=tagfast.Tag(t,f,"xorm")
     fmt.Println("xorm:",xorm)
     
   }
diff --git a/tagfast.go b/tagfast.go
index e02ec1c..7cdc2d6 100644
--- a/tagfast.go
+++ b/tagfast.go
@@ -31,17 +31,33 @@ func GetTag(struct_name string, field_name string) (r TagFast, ok bool) {
 	return
 }
 
-//usage: Tag(t, i, "form")
-func Tag(t reflect.Type, field_no int, key string) (tag string) {
-	if t.Field(field_no).Tag == "" {
+//usage: Tag1(t, i, "form")
+func Tag1(t reflect.Type, field_no int, key string) (tag string) {
+	f := t.Field(field_no)
+	tag = Tag(t, f, key)
+	return
+}
+
+//usage: Tag2(t, "Id", "form")
+func Tag2(t reflect.Type, field_name string, key string) (tag string) {
+	f, ok := t.FieldByName(field_name)
+	if !ok {
+		return ""
+	}
+	tag = Tag(t, f, key)
+	return
+}
+
+func Tag(t reflect.Type, f reflect.StructField, key string) (tag string) {
+	if f.Tag == "" {
 		return ""
 	}
-	if v, ok := GetTag(t.String(), t.Field(field_no).Name); ok {
+	if v, ok := GetTag(t.String(), f.Name); ok {
 		tag = v.Get(key)
 	} else {
-		v := TagFast{Tag: t.Field(field_no).Tag}
+		v := TagFast{Tag: f.Tag}
 		tag = v.Get(key)
-		CacheTag(t.String(), t.Field(field_no).Name, v)
+		CacheTag(t.String(), f.Name, v)
 	}
 	return
 }