基於django實現簡易版的圖書管理系統

時間 2020-05-06

標籤基於 django 實現簡易圖書管理系統欄目 Python 简体版

原文原文鏈接

介紹：

本程序僅僅實現圖書數據的增刪查

樹形結構以下

所有代碼以下：

url：

from django.urls import path from front import views as front_views urlpatterns = [ path('', front_views.index,name='index'), path('add/', front_views.add_book,name='add_book'), path('detail/<int:book_id>/', front_views.book_detail,name='book_detail'), path('del/', front_views.del_book,name='del_book'), ]

app的views;

from django.shortcuts import render,reverse,redirect from django.db import connection def get_corsor(): return connection.cursor() def index(request): cursor=get_corsor() #cursor.execute("insert into book(id,name,author) values(1,'三國演義','羅貫中')")
    '''第二使用該界面會錯，這代表每次使用都使用非覆蓋的方式進行填寫''' cursor.execute("select id,name,author from book") books=cursor.fetchall() return render(request,'index.html',context={"books":books}) def del_book(request): if request.method == 'POST': book_id = request.POST.get('book_id') cursor = get_corsor() cursor.execute("delete from book where id=%s" % book_id) return redirect(reverse('index')) else: raise RuntimeError("刪除圖書的method錯誤！") def add_book(request): if request.method == 'GET': return render(request, 'add_book.html') else: name = request.POST.get("name") author = request.POST.get("author") cursor = get_corsor() cursor.execute("insert into book(id,name,author) values(null,'%s','%s')" % (name, author)) return redirect(reverse('index')) def book_detail(request,book_id): cursor=get_corsor() cursor.execute("select id,name,author from book where id=%s" % book_id) book=cursor.fetchone()#使用fetchone將會填充不了
    return render(request, 'book_detail.html', context={"book":book})

setting:

DATABASES = { 'default': { 'ENGINE': 'django.db.backends.mysql', 'NAME': 'book_managr', 'USER':'root', 'PASSWORD':'', 'HOST':'127.0.0.1', 'PORT':'3306', } }

html:book_detail

{% extends 'base.html' %}
 
{% block content %}
<p>書名：{{ book.1}}</p>
<p>做者：{{ book.2 }}</p>
<form action="{% url 'del_book' %}" method="post">
<input type="hidden" name="book_id" value="{{ book.0 }}">
<input type="submit" value="刪除按鈕">
</form>
{% endblock %}

add

{% extends 'base.html' %}
{% block content %}
<form action="" method="post">
<table>
<tbody>
<tr>
<td>書名：</td>
<td><input type="text" name="name"></td>
</tr>
<tr>
<td>做者：</td>
<td><input type="text" name="author"></td>
</tr>
<tr>
<td></td>
<td><input type="submit" value="提交"></td>
</tr>
</tbody>
</table>
</form>
{% endblock %}
index
{% extends 'base.html' %}
 
{% block content %}
<table>
<thead>
<tr>
<th>序號</th>
<th>書名</th>
<th>做者</th>
</tr>
</thead>
<tbody>
{% for book in books %}
<tr>
<td>{{ forloop.counter }}</td>
<td><a href="{% url 'book_detail' book_id=book.0 %}">{{ book.1 }}</a></td>
<td>{{ book.2 }}</td>
</tr>
{% endfor %}
</tbody>
</table>
{% endblock %}

base:

{% load static %} <!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>圖書管理系統</title>
<link rel="stylesheet" href="{% static 'front/base.css' %}">
</head>
<body>
<nav>
<ul class="nav">
<li><a href="/">首頁</a></li>
<li><a href="{% url 'add_book' %}">發佈圖書</a></li>
</ul>
</nav> {% block content %}{% endblock %} </body>
</html>

css:base:

*{ margin: 0; padding: 0;
} .nav{ background: #3a3a3a; height: 65px; overflow: hidden;
} .nav li{ float: left; list-style: none; margin: 0 20px; line-height: 65px;
} .nav li a{ color: #fff; text-decoration: none;
} .nav li a:hover{ color: lightblue;
}

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