三、2：使用orm製作表圖的增、刪、改、查
阿新 • • 發佈：2018-12-03
一、首先配置orm
1、首先在settings.py中配置（資料庫需要手動提前先建好）
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'orm_db1',
'HOST':'127.0.0.1',
'PORT':3306,
'USER':'root',
'PASSWORD':'mariadb.123',
}
}2、在__init__.py中新增以下內容：
import pymysql pymysql.install_as_MySQLdb()
二、在專案中配置
1、在models.py中建立使用者表與欄位填寫
from django.db import models class User(models.Model): id=models.AutoField(primary_key=True) name=models.CharField(max_length=32) password=models.CharField(max_length=32) address=models.CharField(max_length=64) phone=models.CharField(max_length=64,default='1308858585')
2、在總路由新增以後可能要新增的功能路由地址與對應的檢視
from app01 import views urlpatterns = [ url(r'^admin/', admin.site.urls), url(r'^user_list/',views.user_list), url(r'^delete/',views.delete), url(r'^add/',views.add), url(r'^edit/',views.edit), ]
3、在檢視功能檔案中填寫：views.py
from django.shortcuts import render,HttpResponse,redirect
from app01 import models
# Create your views here.
def user_list(request):
if request.method=='GET':
# 查詢user表中所有資料.--相當於sql select * from app01_user;
# 返回結果是QuerySet物件(先當成列表)
# [user1,user2]
ret=models.User.objects.all()
# print(type(ret))
# for i in ret:
# print(type(i))
# print(i.name)
return render(request,'user_list.html',{'user_list':ret})
def delete(request):
if request.method=='GET':
id=request.GET.get('id')
ret=models.User.objects.filter(id=id).delete()
return redirect('/user_list/')
def add(request):
if request.method=='GET':
return render(request, 'add.html')
elif request.method=="POST":
name=request.POST.get('name')
pwd=request.POST.get('password')
addr=request.POST.get('addr')
phe=request.POST.get('phone_a')
# 方式一
# user=models.User(name=name,password=pwd,address=addr)
# user.save() #寫入資料庫
# 方式二
models.User.objects.create(name=name,password=pwd,address=addr,phone=phe)
return redirect('/user_list/')
def edit(request):
if request.method=='GET':
id=request.GET.get('id')
user=models.User.objects.filter(id=id).first()
return render(request,'edit.html',{'user':user})
if request.method=='POST':
id=request.POST.get("id")
name = request.POST.get('name')
pwd = request.POST.get('password')
addr = request.POST.get('addr')
phe = request.POST.get('phone_a')
models.User.objects.filter(id=id).update(name=name,password=pwd,address=addr,phone=phe)
return redirect('/user_list/')
4、在templates目錄中建立以下html檔案
adduser.html
updateuser.html
userlist.html
adduser.html
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>新增使用者</title> </head> <body> <form action="" method="post"> <p>使用者名稱: <input type="text" name="name"></p> <p>密碼: <input type="password" name="password"></p> <p>地址: <input type="text" name="addr"></p> <input type="submit" value="提交"> </form> </body> </html>
updateuser.html
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<form action="/updateuser/?id={{ user.id }}" method="post">
<p><input type="hidden" name="id" value="{{ user.id }}"></p>
<p>使用者名稱: <input type="text" name="name" value="{{ user.name }}"></p>
<p>密碼: <input type="text" name="password" value="{{ user.password }}"></p>
<p>地址: <input type="text" name="addr" value="{{ user.address }}"></p>
<input type="submit" value="提交">
</form>
</body>
</html>
userlist.html
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<table border="1">
<thead>
<tr>
<th>id</th>
<th>name</th>
<th>password</th>
<th>addr</th>
<th>刪除</th>
<th>編輯</th>
</tr>
</thead>
<tbody>
{% for user in user_list %}
<tr>
<td>{{ user.id }}</td>
<td>{{ user.name }}</td>
<td>{{ user.password }}</td>
<td>{{ user.address }}</td>
<td><a href="/deleteuser?id={{ user.id }}">刪除</a></td>
<td><a href="/updateuser?id={{ user.id }}">編輯</a></td>
</tr>
{% endfor %}
</tbody>
<a href="/adduser/">新增使用者</a>
</table>
</body>
</html>