蓝鲸Django：更新用户信息

完善显示页面

现在的用户显示页面，user.html,

如果一些信息没填，它会显示None ,照片也不显示。

这样很不美观，让我们来添上默认值。

Models 中添加 default 属性：

class WeChatUser(models.Model):
    user = models.OneToOneField(User, models.CASCADE)
    motto = models.CharField(max_length=200,null=True,blank=True,default="")
    pic = models.CharField(max_length=50,null=True,blank=True,default="")
    region = models.CharField(max_length=60,null=True,blank=True,default="")
    def __str__(self):
        return self.user.username

再次注册新用户，然后登录：

现在设置图片的缺省设置：

user.html:

<img src="/static/image/{% if user.pic %}{{ user.pic }}{% else %}empty_user.jpg{% endif %}" class="img-responsive img-thumbnail">

更新用户信息_前端表单

添加元素标签

在 user.html 中给相关标签添加id 和 class：

 {% extends "base.html" %}

{% block title %}User{% endblock %}
{% block user %}class="active"{% endblock %}

{% block content %}
    <div class="container">
        <div class="row">
            <div class="col-md-2">
                <img src="/static/image/{% if user.pic %}{{ user.pic }}{% else %}empy_user.png{% endif %}" id="icon" class="info img-responsive img-thumbnail">
            </div>
            <div class="col-md-10">
                <h1 style="font-size:70px" id="name">{{ user.user }}</h1>
                <p style="font-size:50px" id="email" class="info">Email: {{ user.user.email }}</p>
            </div>
        </div>
        <div class="row" style="margin-top:62px">
            <div class="col-md-4">
                <p style="font-size:50px">Region</p>
            </div>
            <div class="col-md-8">
                <p style="font-size:50px;color:gray" id="region" class="info">{{ user.region }}</p>
            </div>
        </div>
        <hr>
        <div class="row">
            <div class="col-md-4">
                <p style="font-size:50px">What's up</p>
            </div>
            <div class="col-md-8">
                <p style="font-size:50px;color:gray" id="motto" class="info">{{ user.motto }}</p>
            </div>
        </div>
        <hr>
        <div class="row">
            <div class="col-md-4">
                <p style="font-size:50px">Album</p>
            </div>
            <div class="col-md-8">
                <img src="/static/image/messi.jpg" style="width:188px">
            </div>
        </div>        
        <hr>
    </div>

{% endblock %}

试验jQuery的split和trim方法

$("#region").replaceWith("<input>")
Object { 0: p#region.info, length: 1, context: HTMLDocument http://10.0.0.30:8000/user, selector: "#region" }

$("#email").html()
"Email: zhangwu@qq.com"
$("#email").html().split(":")[1]
" zhangwu@qq.com"

编写点击事件

在 user.html 中添加点击信息替换输入框前端代码：

 <script>
         $(".info").click(function() {
                $("#region").replaceWith('<input style="font-size:50px;color:gray" id="region" value="' + $("#region").html()+ '">')
                $("#motto").replaceWith('<input style="font-size:50px;color:gray" id="motto" value="' +$("#motto").html()+'">')
                $("#email").replaceWith('<input style="font-size:50px;color:gray" id="email" placeholder="Email:" value="' + $.trim($("#email").html().split(":")[1]) + '">')
                $("#icon").replaceWith('<input style="font-size:50px;color:gray;width:150px" id="icon">')
         })
    </script>

点击相关信息，信息会变成输入框：

更新用户信息__后端逻辑

moments.view.py:

def update_user(request):
    try:
        kwargs = {key:request.POST.get(key) for key in ('region','motto','pic') if request.POST.get(key)}
        WeChatUser.objects.filter(user=request.user).update(**kwargs)

        email = request.POST.get("email")
        if email:
            we_user = WeChatUser.objects.get(user=request.user)
            we_user.user.email = email
            we_user.user.save()
        result = True
        message = "Update success"
    except Exception as err:
        result = False
        message = str(err)

    return JsonResonse({"result":result,"message":message})

urls.py:

from django.contrib import admin
from django.urls import path
from moments.views import home
from moments.views import show_user,show_status,submit_post
from moments.views import register,update_user
from django.contrib.auth.views import LoginView,LogoutView
urlpatterns = [
    path('admin/', admin.site.urls),
    path('',LoginView.as_view(template_name="homepage.html")),
    path('', home),
    path('user',show_user),
    path('status',show_status),
    path('post',submit_post),
    path('exit',LogoutView.as_view(next_page="/")),
    path('register',register),
    path('user/update',update_user)
]