django(參考:跟老齊學django實踐)三

改用markdown編輯器

設置欄目

創(chuàng)建一個新的app:django-admin startapp article,將新建的app添加到mysite/settings.py中
在article/models.py中創(chuàng)建數(shù)據(jù)模型
并生成新的遷移文件
python manage.py migrate article
python manage.py migrate article

from django.db import models
from django.contrib.auth.models import User

# Create your models here.


class ArticleColumn(models.Model):
    user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='article_column')    #ForeignKey 一對多
    column = models.CharField(max_length=200)
    created = models.DateField(auto_now_add=True)

    def ___str__(self):
        return self.column

在創(chuàng)建欄目時需要用到表單類,在article/forms.py創(chuàng)建一個表單類

from django import forms
from .models import ArticleColumn


class ArticleColumnForm(forms.ModelForm):
    class Meta:
        model = ArticleColumn
        fields = ("column",)

在article/views.py中寫視圖函數(shù)

from django.shortcuts import render
from django.contrib.auth.decorators import login_required
from .models import ArticleColumn
# Create your views here.


@login_required(login_url="/account/login/")        #自帶的判斷是否登陸的裝飾器
def article_column(request):
    columns = ArticleColumn.objects.filter(user=request.user)   #將數(shù)據(jù)庫中符和user=request.user的數(shù)據(jù)提取出來
    return render(request, "article/header.html", {" columns": columns})

在article/urls.py配置

from django.urls import path
from . import views

app_name = 'article'
urlpatterns = [
    path("article-column/", views.article_column, name="article_column"),
]

在templates/blog/title.html文件中添加一個跳轉到后臺的連接

<li><a href="{% url 'article:article_column' %}">后臺</a></li>

然后在templates/article/header.html中寫前端頁面

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<div class="container">
    <span>用戶:{{user.username}}</span><br>
    <a href="{% url 'blog:blog_title' %}">首頁</a>
    <a href="{% url 'account:user_logout' %}">Logout</a>
    <p><a href="{% url 'article:article_column' %}">欄目管理</a></p>
    <p class="text-right"><button class="btn btn-primary">add column</button></p>

    <div>
        <table class="table table-hover">
            <tr>
                <td>序號</td>
                <td>欄目名稱</td>
                <td>操作</td>
            </tr>
            {% for column in columns %}
                <tr>
                    <td>{{forloop.counter}}</td>
                    <td>{{column.column}}</td>
                    <td>--</td>
                </tr>
            {% empty %}
                <p>沒有設置欄目</p>
            {% endfor %}
        </table>
    </div>
</div>

</body>
</html>
捕獲.PNG

添加欄目

在static/js文件夾下放入jquery.jslayer兩個前端開發(fā)包
然后修改templates/article/header.html中的add column部分的代碼為<p class="text-right"><button id='add_column' onclick="add_column()" class="btn btn-primary">add column</button></p>
添加js代碼

{% load staticfiles %}
<script type="text/javascript" src="{% static '/js/jquery.js' %}"></script>
<script type="text/javascript" src="{% static '/js/layer/layer.js' %}"></script>
<script type="text/javascript">
    function add_column(){
        var index = layer.open({
            type:1,
            skin:"layui-alyer-rim",
            area:["400px","200px"],
            title:"新增欄目",
            content: '<div class="text-center" style="margin-top:20px"><p>請輸入新的欄目名稱</p><p><input type="text"></p></div>',
            btn:["確定","取消"],
            yes: function (index, layero) {
                column_name = $("#id_column").val();
                alert(column_name);
            },
            btn2: function (index, layero) {
                layer.close(index);
            }
        });
    }
</script>
捕獲.PNG

實現(xiàn)功能,修改article/views.py文件

from django.shortcuts import render
from django.contrib.auth.decorators import login_required
from .models import ArticleColumn
from django.http import HttpResponse

from django.views.decorators.csrf import csrf_exempt
from .forms import ArticleColumnForm
# Create your views here.


@login_required(login_url="/account/login/")        #自帶的判斷是否登陸的裝飾器
@csrf_exempt        #csrf問題的一種解決方式
def article_column(request):
    if request.method == "GET":
        columns = ArticleColumn.objects.filter(user=request.user)   #將數(shù)據(jù)庫中符和user=request.user的數(shù)據(jù)提取出來
        column_form = ArticleColumnForm()
        return render(request, "article/header.html", {"columns": columns, "column_form": column_form})
    if request.method == "POST":
        column_name = request.POST['column']
        columns = ArticleColumn.objects.filter(user_id=request.user.id, column=column_name)   #當前用戶,欄目名稱,如果欄目不存在則允許創(chuàng)建
        if columns:
            return HttpResponse("2")
        else:
            ArticleColumn.objects.create(user=request.user, column=column_name)
            return HttpResponse("1")

對templates/article/header.html文件中的js進行修改,直接放上完整的

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<div class="container">


    <span>用戶:{{user.username}}</span><br>
    <a href="{% url 'blog:blog_title' %}">首頁</a>
    <a href="{% url 'account:user_logout' %}">Logout</a>
    <p><a href="{% url 'article:article_column' %}">欄目管理</a></p>
    <p class="text-right"><button id='add_column' onclick="add_column()" class="btn btn-primary">add column</button></p>

    <div>

        <table class="table table-hover">
            <tr>
                <td>序號</td>
                <td>欄目名稱</td>
                <td>操作</td>
            </tr>
            {% for column in columns %}
                <tr>
                    <td>{{forloop.counter}}</td>
                    <td>{{column.column}}</td>
                    <td>--</td>
                </tr>
            {% empty %}
                <p>沒有設置欄目</p>
            {% endfor %}
        </table>
    </div>
</div>

{% load staticfiles %}
<script type="text/javascript" src="{% static '/js/jquery.js' %}"></script>
<script type="text/javascript" src="{% static '/js/layer/layer.js' %}"></script>
<script type="text/javascript">
    function add_column(){
        var index = layer.open({
            type:1,
            skin:"layui-alyer-rim",
            area:["400px","200px"],
            title:"新增欄目",
            content: '<div class="text-center" style="margin-top:20px"><p>請輸入新的欄目名稱</p><p>{{column_form.column}}</p></div>',
            btn:["確定","取消"],
            yes: function (index, layero) {
                column_name = $("#id_column").val();
                <!-- 修改部分-->
                $.ajax({
                   url:"{% url 'article:article_column' %}",
                   type:"POST",
                   data:{"column":column_name},
                   success:function(e) {
                       if(e=='1'){
                           parent.location.reload();
                           layer.msg("good");
                       }else{
                           layer.msg("此欄目已存在")
                       }
                   }
                });
            },
            btn2: function (index, layero) {
                layer.close(index);
            }
        });
    }
</script>

</body>
</html>
捕獲.PNG

編輯欄目

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