Switch language on the front end, implement the back end code

Author: laijinhang

modules/config/config.go

@@ -455,6 +455,47 @@ type ExtraInfo map[string]interface{}
 
 type UpdateConfigProcessFn func(values form.Values) (form.Values, error)
 
+// UserConfig type is the user config of goAdmin.
+type UserConfig struct {
+	// user id
+	UserId int64 `json:"userid",yaml:"userid",ini:"userid"`
+
+	// Used to set as the user language which show in the
+	// interface.
+	Language string `json:"language",yaml:"language",ini:"language"`
+
+	// Extend
+	// ...
+}
+
+var userConfig []UserConfig
+
+// Get gets the config.
+func SetUserConfig(uConf UserConfig) {
+	// insert or update to database, If there is a database
+	for i := 0; i < len(userConfig); i++ {
+		if userConfig[i].UserId == uConf.UserId {
+			userConfig[i] = uConf
+			return
+		}
+	}
+	userConfig = append(userConfig, uConf)
+}
+
+// Get GetUserConf the config.
+func GetUserConf(uId int64) *UserConfig {
+	for i := 0; i < len(userConfig); i++ {
+		if userConfig[i].UserId == uId {
+			return &userConfig[i]
+		}
+	}
+	SetUserConfig(UserConfig{
+		UserId:   uId,
+		Language: _global.Language,
+	})
+	return &userConfig[len(userConfig)-1]
+}
+
 // see more: https://daneden.github.io/animate.css/
 type PageAnimation struct {
 	Type     string  `json:"type,omitempty" yaml:"type,omitempty" ini:"type,omitempty"`

modules/language/language.go

@@ -160,3 +160,34 @@ func JoinScopes(scopes []string) string {
 	}
 	return j
 }
+
+// GetUser return the value of user scope.
+func GetUser(value string, uid int64) string {
+	return GetUserWithScope(value, uid)
+}
+
+// GetUserWithScope return the value of given scopes.
+func GetUserWithScope(value string, uid int64, scopes ...string) string {
+	if config.GetUserConf(uid).Language == "" {
+		return value
+	}
+
+	if locale, ok := Lang[config.GetUserConf(uid).Language][JoinScopes(scopes)+strings.ToLower(value)]; ok {
+		return locale
+	}
+
+	return value
+}
+
+// GetUserFromHtml return the value of given scopes and template.HTML value.
+func GetUserFromHtml(value template.HTML, uid int64, scopes ...string) template.HTML {
+	if config.GetUserConf(uid).Language == "" {
+		return value
+	}
+
+	if locale, ok := Lang[config.GetUserConf(uid).Language][JoinScopes(scopes)+strings.ToLower(string(value))]; ok {
+		return template.HTML(locale)
+	}
+
+	return value
+}

modules/menu/menu.go

@@ -203,14 +203,19 @@ func GetGlobalMenu(user models.UserModel, conn db.Connection, lang string, plugi
 	var title string
 	for i := 0; i < len(menus); i++ {
 
-		title = language.GetWithLang(menus[i]["title"].(string), lang)
+		if menus[i]["type"].(int64) == 1 {
+			title = language.GetUser(menus[i]["title"].(string), user.Id)
+		} else {
+			title = language.GetWithLang(menus[i]["title"].(string), lang)
+		}
+
 		menuOption = append(menuOption, map[string]string{
 			"id":    strconv.FormatInt(menus[i]["id"].(int64), 10),
 			"title": title,
 		})
 	}
 
-	menuList := constructMenuTree(menus, 0, lang)
+	menuList := constructMenuTree(menus, 0, lang, user.Id)
 	maxOrder := int64(0)
 	if len(menus) > 0 {
 		maxOrder = menus[len(menus)-1]["parent_id"].(int64)
@@ -224,15 +229,16 @@ func GetGlobalMenu(user models.UserModel, conn db.Connection, lang string, plugi
 	}
 }
 
-func constructMenuTree(menus []map[string]interface{}, parentID int64, lang string) []Item {
+func constructMenuTree(menus []map[string]interface{}, parentID int64, lang string, uid int64) []Item {
 
 	branch := make([]Item, 0)
 
 	var title string
 	for j := 0; j < len(menus); j++ {
 		if parentID == menus[j]["parent_id"].(int64) {
+
 			if menus[j]["type"].(int64) == 1 {
-				title = language.Get(menus[j]["title"].(string))
+				title = language.GetUser(menus[j]["title"].(string), uid)
 			} else {
 				title = menus[j]["title"].(string)
 			}
@@ -256,7 +262,7 @@ func constructMenuTree(menus []map[string]interface{}, parentID int64, lang stri
 				Icon:         menus[j]["icon"].(string),
 				Header:       header,
 				Active:       "",
-				ChildrenList: constructMenuTree(menus, menus[j]["id"].(int64), lang),
+				ChildrenList: constructMenuTree(menus, menus[j]["id"].(int64), lang, uid),
 			}
 
 			branch = append(branch, child)

plugins/admin/controller/detail.go

@@ -118,13 +118,19 @@ $('.delete-btn').on('click', function (event) {
 	desc := ""
 
 	isNotIframe := ctx.Query(constant.IframeKey) != "true"
+	if title == "" {
+		title = panel.GetInfo().Title + language.GetUser("Detail", user.Id)
+	}
 
 	if isNotIframe {
 		title = detail.Title
 
 		if title == "" {
 			title = info.Title + language.Get("Detail")
 		}
+		if desc == "" {
+			desc = panel.GetInfo().Description + language.GetUser("Detail", user.Id)
+		}
 
 		desc = detail.Description
 

plugins/admin/controller/edit.go

@@ -14,8 +14,10 @@ import (
 
 	"github.com/GoAdminGroup/go-admin/context"
 	"github.com/GoAdminGroup/go-admin/modules/auth"
+	"github.com/GoAdminGroup/go-admin/modules/config"
 	"github.com/GoAdminGroup/go-admin/modules/file"
 	"github.com/GoAdminGroup/go-admin/modules/language"
+	"github.com/GoAdminGroup/go-admin/plugins/admin/models"
 	"github.com/GoAdminGroup/go-admin/plugins/admin/modules"
 	"github.com/GoAdminGroup/go-admin/plugins/admin/modules/constant"
 	form2 "github.com/GoAdminGroup/go-admin/plugins/admin/modules/form"
@@ -228,3 +230,15 @@ func (h *Handler) EditForm(ctx *context.Context) {
 	ctx.HTML(http.StatusOK, buf.String())
 	ctx.AddHeader(constant.PjaxUrlHeader, param.PreviousPath)
 }
+
+func (h *Handler) SetLanguage(ctx *context.Context) {
+	if len(ctx.PostForm()["language"]) == 0 {
+		return
+	}
+	if user, ok := ctx.UserValue["user"].(models.UserModel); ok {
+		config.SetUserConfig(config.UserConfig{
+			UserId:   user.Id,
+			Language: ctx.PostForm()["language"][0],
+		})
+	}
+}

plugins/admin/controller/show.go

@@ -137,7 +137,7 @@ func (h *Handler) showTable(ctx *context.Context, prefix string, params paramete
 			ext := template2.HTML("")
 			if deleteUrl != "" {
 				ext = html.LiEl().SetClass("divider").Get()
-				allActionBtns = append([]types.Button{types.GetActionButton(language.GetFromHtml("delete"),
+				allActionBtns = append([]types.Button{types.GetActionButton(language.GetUserFromHtml("delete", user.Id),
 					types.NewDefaultAction(`data-id='{{.Id}}' data-param='{{(index .Value "__goadmin_delete_params").Content}}' style="cursor: pointer;"`,
 						ext, "", ""), "grid-row-delete")}, allActionBtns...)
 			}
@@ -146,14 +146,14 @@ func (h *Handler) showTable(ctx *context.Context, prefix string, params paramete
 				if editUrl == "" && deleteUrl == "" {
 					ext = html.LiEl().SetClass("divider").Get()
 				}
-				allActionBtns = append([]types.Button{types.GetActionButton(language.GetFromHtml("detail"),
+				allActionBtns = append([]types.Button{types.GetActionButton(language.GetUserFromHtml("detail", user.Id),
 					action.Jump(detailUrl+"&"+constant.DetailPKKey+`={{.Id}}{{(index .Value "__goadmin_detail_params").Content}}`, ext))}, allActionBtns...)
 			}
 			if editUrl != "" {
 				if detailUrl == "" && deleteUrl == "" {
 					ext = html.LiEl().SetClass("divider").Get()
 				}
-				allActionBtns = append([]types.Button{types.GetActionButton(language.GetFromHtml("edit"),
+				allActionBtns = append([]types.Button{types.GetActionButton(language.GetUserFromHtml("edit", user.Id),
 					action.Jump(editUrl+"&"+constant.EditPKKey+`={{.Id}}{{(index .Value "__goadmin_edit_params").Content}}`, ext))}, allActionBtns...)
 			}
 

plugins/admin/modules/response/response.go

@@ -10,6 +10,7 @@ import (
 	"github.com/GoAdminGroup/go-admin/modules/errors"
 	"github.com/GoAdminGroup/go-admin/modules/language"
 	"github.com/GoAdminGroup/go-admin/modules/menu"
+	"github.com/GoAdminGroup/go-admin/plugins/admin/models"
 	"github.com/GoAdminGroup/go-admin/template"
 	"github.com/GoAdminGroup/go-admin/template/types"
 )
@@ -37,9 +38,10 @@ func OkWithData(ctx *context.Context, data map[string]interface{}) {
 }
 
 func BadRequest(ctx *context.Context, msg string) {
+	user := ctx.UserValue["user"].(models.UserModel)
 	ctx.JSON(http.StatusBadRequest, map[string]interface{}{
 		"code": http.StatusBadRequest,
-		"msg":  language.Get(msg),
+		"msg":  language.GetUser(msg, user.Id),
 	})
 }
 
@@ -75,9 +77,10 @@ func Alert(ctx *context.Context, desc, title, msg string, conn db.Connection, bt
 }
 
 func Error(ctx *context.Context, msg string, datas ...map[string]interface{}) {
+	user := ctx.UserValue["user"].(models.UserModel)
 	res := map[string]interface{}{
 		"code": http.StatusInternalServerError,
-		"msg":  language.Get(msg),
+		"msg":  language.GetUser(msg, user.Id),
 	}
 	if len(datas) > 0 {
 		res["data"] = datas[0]
@@ -86,9 +89,10 @@ func Error(ctx *context.Context, msg string, datas ...map[string]interface{}) {
 }
 
 func Denied(ctx *context.Context, msg string) {
+	user := ctx.UserValue["user"].(models.UserModel)
 	ctx.JSON(http.StatusInternalServerError, map[string]interface{}{
 		"code": http.StatusForbidden,
-		"msg":  language.Get(msg),
+		"msg":  language.GetUser(msg, user.Id),
 	})
 }