代碼目錄結構
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配置文件
settings.py
LANGUAGE_CODE = 'zh-hans'
邏輯代碼
urls.py
from django.contrib import admin
from django.urls import path, re_path
from app01 import views
urlpatterns = [
path('admin/', admin.site.urls),
path('book_list/', views.book_list),
path('book_add/', views.BookAdd.as_view()),
re_path('book_edit/(?P<id>\d+)/', views.BookEdit.as_view()),
]
views.py(app01)
from django.shortcuts import render, redirect, HttpResponse
from app01 import models
from django import views
def book_list(request):
data = models.Book.objects.all()
return render(request, "book_list.html", locals())
class BookAdd(views.View):
def get(self, request):
publish_data = models.Publisher.objects.all()
author_data = models.Author.objects.all()
return render(request, "book_add.html", locals())
def post(self, request):
title = request.POST.get("title")
publish_date = request.POST.get("publish_date")
publisher_id = request.POST.get("publisher")
authors = request.POST.getlist("author")
book_obj = models.Book.objects.create(
title=title,
publish_date=publish_date,
publisher_id=publisher_id,
)
book_obj.authors.add(*authors)
return redirect("/book_list/")
class BookEdit(views.View):
def get(self, request, id):
book_obj = models.Book.objects.filter(id=id).first()
publisher_list = models.Publisher.objects.all()
author_list = models.Author.objects.all()
return render(request, "book_edit.html", locals())
def post(self, request, id):
book_obj = models.Book.objects.filter(id=id).first()
title = request.POST.get("title")
publish_date = request.POST.get("publish_date")
publisher_id = request.POST.get("publisher")
authors = request.POST.getlist("author")
book_obj.title = title
book_obj.publisher_date = publish_date
book_obj.publisher_id = publisher_id
book_obj.save()
book_obj.authors.set(authors)
return redirect("/book_list/")
models.py
from django.db import models
class Publisher(models.Model):
name = models.CharField(max_length=16, unique=True, verbose_name="出版社名稱")
address = models.TextField(verbose_name="出版社地址")
class Meta:
verbose_name = "出版社"
verbose_name_plural = verbose_name
def __str__(self):
return self.name
class Author(models.Model):
name = models.CharField(max_length=16, verbose_name="姓名")
gender = models.SmallIntegerField(
choices=((0, "女"), (1, "男"), (2, "保密")),
default=2,
verbose_name="性別"
)
age = models.IntegerField(verbose_name="年齡", null=True, blank=True)
class Meta:
verbose_name = "作者"
verbose_name_plural = verbose_name
def __str__(self):
return self.name
class Book(models.Model):
title = models.CharField(max_length=32, unique=True, verbose_name="書名")
publish_date = models.DateField(auto_now_add=True, verbose_name="出版時間")
publisher = models.ForeignKey(to="Publisher", on_delete=models.CASCADE, verbose_name="出版社名稱")
authors = models.ManyToManyField(to="Author", related_name="author", verbose_name="作者")
class Meta:
verbose_name = "書籍"
verbose_name_plural = verbose_name
def __str__(self):
return self.title
template
publisher_list.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>書籍列表</title>
</head>
<body>
<h1>書籍列表</h1>
<a href="/book_add/">添加書籍</a>
<table border="1">
<tbody>
{% for book in data %}
<tr>
<td>{{ forloop.counter }}</td>
<td>{{ book.id }}</td>
<td>{{ book.title }}</td>
<td>{{ book.publish_date }}</td>
<td>{{ book.authors.all }}</td>
<td>{{ book.publisher.name }}</td>
<td><a href="/book_edit/{{ book.id }}/">編輯</a> <a href="/book_del/{{ book.id }}/">刪除</a></td>
</tr>
{% endfor %}
</tbody>
</table>
</body>
</html>
publisher_add.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>添加書籍</title>
</head>
<body>
<h1>添加書籍</h1>
<form action="" method="post">
{% csrf_token %}
<p>
書名
<input type="text" name="title">
</p>
<p>
出版日期
<input type="date", name="publish_date">
</p>
<p>
出版社
<select name="publisher" id="">
{% for datum in publish_data %}
<option value="{{ datum.id }}">{{ datum.name }}</option>
{% endfor %}
</select>
</p>
<p>
作者
<select multiple name="author" id="">
{% for datum in author_data %}
<option value="{{ datum.id }}">{{ datum.name }}</option>
{% endfor %}
</select>
</p>
<input type="submit" value="添加">
</form>
</body>
</html>
publisher_edit.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>編輯書籍</title>
</head>
<body>
<h1>編輯書籍</h1>
<form action="" method="post">
{% csrf_token %}
<p>
書名
<input type="text" name="title" value="{{ book_obj.title }}">
</p>
<p>
出版日期
<input type="date" name="publish_date" value={{ book_obj.publish_date|date:"Y-m-d" }}>
</p>
<p>
出版社
<select name="publisher" id="">
{% for datum in publisher_list %}
{% if book_obj.publisher == datum %}
<option selected value="{{ datum.id }}">{{ datum.name }}</option>
{% else %}
<option value="{{ datum.id }}">{{ datum.name }}</option>
{% endif %}
{% endfor %}
</select>
</p>
<p>
作者
<select multiple name="author" id="">
{% for datum in author_list %}
{% if datum in book_obj.authors.all %}
<option selected value="{{ datum.id }}">{{ datum.name }}</option>
{% else %}
<option value="{{ datum.id }}">{{ datum.name }}</option>
{% endif %}
{% endfor %}
</select>
</p>
<input type="submit" value="保存">
</form>
</body>
</html>
總結
