Accept Merge Request #150 前台表单验证再次统一，改密码功能改动，后台用户名显示，去重复代码 : (dev-sxw -> dev)

Merge Request: 前台表单验证再次统一，改密码功能改动，后台用户名显示，去重复代码
Created By: @esp
Accepted By: @esp
URL: https://coding.net/u/virusdefender/p/qduoj/git/merge/150

static/src/js/app/admin/admin.js

@@ -72,6 +72,7 @@ define("admin", ["jquery", "avalon"], function ($, avalon) {
         var vm = avalon.define({
             $id: "admin",
             template_url: "template/" + hash + ".html",
+            username: "",
             groupId: -1,
             problemId: -1,
             adminNavList: [],
@@ -93,6 +94,7 @@ define("admin", ["jquery", "avalon"], function ($, avalon) {
             dataType: "json",
             success: function(data){
                 if(!data.code){
+                    vm.username = data.data.username;
                     if (data.data.admin_type == 2){
                         vm.adminNavList = superAdminNav;
                     }

static/src/js/app/admin/contest/addContest.js

@@ -43,7 +43,6 @@ require(["jquery", "avalon", "editor", "uploader", "bsAlert", "csrfToken", "date
                     contentType: "application/json",
                     data: JSON.stringify(ajaxData),
                     method: "post",
-                    contentType: "application/json",
                     success: function (data) {
                         if (!data.code) {
                                 bsAlert("添加成功！将转到比赛列表页以便为比赛添加问题(注意比赛当前状态为:隐藏)");

static/src/js/app/oj/account/change_password.js

@@ -2,13 +2,12 @@ require(["jquery", "bsAlert", "csrfToken", "validator"], function ($, bsAlert, c
 
     $('form').validator().on('submit', function (e) {
         e.preventDefault();
-        var username = $("#username").val();
         var newPassword = $("#new_password ").val();
         var password = $("#password").val();
         $.ajax({
             beforeSend: csrfTokenHeader,
             url: "/api/change_password/",
-            data: {username: username, new_password: newPassword, old_password: password},
+            data: {new_password: newPassword, old_password: password},
             dataType: "json",
             method: "post",
             success: function (data) {