change Error from struct to interface for package gvalid;error string update for package gdb

.example/i18n/gi18n/gi18n-dir.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"context"
 	"fmt"
 
 	"github.com/gogf/gf/i18n/gi18n"
@@ -13,6 +14,6 @@ func main() {
 	if err != nil {
 		panic(err)
 	}
-	fmt.Println(t.Translate(`hello`))
-	fmt.Println(t.Translate(`{#hello}{#world}!`))
+	fmt.Println(t.Translate(context.TODO(), `hello`))
+	fmt.Println(t.Translate(context.TODO(), `{#hello}{#world}!`))
 }

.example/i18n/gi18n/gi18n-file.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"context"
 	"fmt"
 
 	"github.com/gogf/gf/i18n/gi18n"
@@ -13,6 +14,6 @@ func main() {
 	if err != nil {
 		panic(err)
 	}
-	fmt.Println(t.Translate(`hello`))
-	fmt.Println(t.Translate(`{#hello}{#world}!`))
+	fmt.Println(t.Translate(context.TODO(), `hello`))
+	fmt.Println(t.Translate(context.TODO(), `{#hello}{#world}!`))
 }

.example/i18n/gi18n/gi18n.go

@@ -1,8 +1,10 @@
 package main
 
 import (
+	"context"
 	"fmt"
 	"github.com/gogf/gf/frame/g"
+	"github.com/gogf/gf/i18n/gi18n"
 )
 
 func main() {
@@ -10,6 +12,12 @@ func main() {
 		orderId     = 865271654
 		orderAmount = 99.8
 	)
-	fmt.Println(g.I18n().Tfl(`en`, `{#OrderPaid}`, orderId, orderAmount))
-	fmt.Println(g.I18n().Tfl(`zh-CN`, `{#OrderPaid}`, orderId, orderAmount))
+	fmt.Println(g.I18n().Tf(
+		gi18n.WithLanguage(context.TODO(), `en`),
+		`{#OrderPaid}`, orderId, orderAmount,
+	))
+	fmt.Println(g.I18n().Tf(
+		gi18n.WithLanguage(context.TODO(), `zh-CN`),
+		`{#OrderPaid}`, orderId, orderAmount,
+	))
 }

.example/i18n/gi18n/http_view_i18n.go

@@ -2,15 +2,19 @@ package main
 
 import (
 	"github.com/gogf/gf/frame/g"
+	"github.com/gogf/gf/i18n/gi18n"
 	"github.com/gogf/gf/net/ghttp"
 )
 
 func main() {
-	g.I18n().SetPath("/Users/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/.example/i18n/gi18n/i18n")
 	s := g.Server()
-	s.BindHandler("/", func(r *ghttp.Request) {
-		r.Response.WriteTplContent(`{#hello}{#world}!`, g.Map{
-			"I18nLanguage": r.Get("lang", "zh-CN"),
+	s.Group("/", func(group *ghttp.RouterGroup) {
+		group.Middleware(func(r *ghttp.Request) {
+			r.SetCtx(gi18n.WithLanguage(r.Context(), "zh-CN"))
+			r.Middleware.Next()
+		})
+		group.ALL("/", func(r *ghttp.Request) {
+			r.Response.WriteTplContent(`{#hello}{#world}!`)
 		})
 	})
 	s.SetPort(8199)

.example/net/ghttp/client/middleware/client.go

@@ -0,0 +1,64 @@
+package main
+
+import (
+	"bytes"
+	"fmt"
+	"github.com/gogf/gf/container/garray"
+	"github.com/gogf/gf/crypto/gmd5"
+	"github.com/gogf/gf/frame/g"
+	"github.com/gogf/gf/internal/json"
+	"github.com/gogf/gf/net/ghttp"
+	"github.com/gogf/gf/os/gtime"
+	"github.com/gogf/gf/util/gconv"
+	"github.com/gogf/gf/util/guid"
+	"github.com/gogf/gf/util/gutil"
+	"io/ioutil"
+	"net/http"
+)
+
+const (
+	appId     = "123"
+	appSecret = "456"
+)
+
+// 注入统一的接口签名参数
+func injectSignature(jsonContent []byte) []byte {
+	var m map[string]interface{}
+	_ = json.Unmarshal(jsonContent, &m)
+	if len(m) > 0 {
+		m["appid"] = appId
+		m["nonce"] = guid.S()
+		m["timestamp"] = gtime.Timestamp()
+		var (
+			keyArray   = garray.NewSortedStrArrayFrom(gutil.Keys(m))
+			sigContent string
+		)
+		keyArray.Iterator(func(k int, v string) bool {
+			sigContent += v
+			sigContent += gconv.String(m[v])
+			return true
+		})
+		m["signature"] = gmd5.MustEncryptString(gmd5.MustEncryptString(sigContent) + appSecret)
+		jsonContent, _ = json.Marshal(m)
+	}
+	return jsonContent
+}
+
+func main() {
+	c := g.Client()
+	c.Use(func(c *ghttp.Client, r *http.Request) (resp *ghttp.ClientResponse, err error) {
+		bodyBytes, _ := ioutil.ReadAll(r.Body)
+		if len(bodyBytes) > 0 {
+			// 注入签名相关参数，修改Request原有的提交参数
+			bodyBytes = injectSignature(bodyBytes)
+			r.Body = ioutil.NopCloser(bytes.NewBuffer(bodyBytes))
+			r.ContentLength = int64(len(bodyBytes))
+		}
+		return c.Next(r)
+	})
+	content := c.ContentJson().PostContent("http://127.0.0.1:8199/", g.Map{
+		"name": "goframe",
+		"site": "https://goframe.org",
+	})
+	fmt.Println(content)
+}

.example/net/ghttp/client/middleware/server.go

@@ -0,0 +1,17 @@
+package main
+
+import (
+	"github.com/gogf/gf/frame/g"
+	"github.com/gogf/gf/net/ghttp"
+)
+
+func main() {
+	s := g.Server()
+	s.Group("/", func(group *ghttp.RouterGroup) {
+		group.ALL("/", func(r *ghttp.Request) {
+			r.Response.Write(r.GetMap())
+		})
+	})
+	s.SetPort(8199)
+	s.Run()
+}

.example/net/ghttp/server/request/json-xml/test2.go

@@ -25,7 +25,7 @@ func main() {
 		//fmt.Println(r.GetBody())
 		if err := r.Parse(&req); err != nil {
 			// Validation error.
-			if v, ok := err.(*gvalid.Error); ok {
+			if v, ok := err.(gvalid.Error); ok {
 				r.Response.WriteJsonExit(RegisterRes{
 					Code:  1,
 					Error: v.FirstString(),

.example/net/ghttp/server/request/validation/validation2.go

@@ -24,7 +24,7 @@ func main() {
 		var req *RegisterReq
 		if err := r.Parse(&req); err != nil {
 			// Validation error.
-			if v, ok := err.(*gvalid.Error); ok {
+			if v, ok := err.(gvalid.Error); ok {
 				r.Response.WriteJsonExit(RegisterRes{
 					Code:  1,
 					Error: v.FirstString(),