arya 项目01 （主要学习reverse方法，逆向解析url）
一、项目结构(只列出使用的文件)
- learnmodelform 项目目录
- app01 第一个app
model.py 数据库文件
arya.py 引用插件
- arya 第二个app
apps.py 加载自动搜索模块，django启动时自动搜索该我文件配置的模块
- service arya逻辑文件目录
v1.py 逻辑代码文件，主要用来配置url，table表单展示数据，数据库操作等
- learnmodelform
settings.py 配置文件
urls.py 路由文件
- templates 模板文件
model.py代码:
from django.db import models
class Role(models.Model):
caption = models.CharField(max_length=32)
def __str__(self):
return self.caption
class UserType(models.Model):
title = models.CharField(max_length=32)
def __str__(self):
return self.title
class UserInfo(models.Model):
name = models.CharField(max_length=32)
pwd = models.CharField(max_length=32)
email = models.CharField(max_length=32)
ut = models.ForeignKey(to="UserType", blank=True,null=True)
roles = models.ManyToManyField(to="Role",blank=True)
def __str__(self):
return self.name
arya.py代码:
from arya.service import v1
from . import models
class UserInfoConfig(v1.AryaConfig):
list_display = ['name', 'pwd', 'id', 'email']
v1.site.register(models.UserInfo,UserInfoConfig)
class UserTypeConfig(v1.AryaConfig):
list_display = ['id', 'title']
v1.site.register(models.UserType, UserTypeConfig)
class RoleConfig(v1.AryaConfig):
list_display = ['id', 'caption']
v1.site.register(models.Role,RoleConfig)
apps.py代码(在arya应用中)
from django.apps import AppConfig
class AryaConfig(AppConfig):
name = 'arya'
def ready(self):
from django.utils.module_loading import autodiscover_modules
autodiscover_modules('arya')
v1.py代码:
from django.shortcuts import HttpResponse,render,redirect
from django.utils.safestring import mark_safe
from django.urls import reverse
class AryaConfig(object):
list_display = []
def get_list_display(self):
result = []
result.extend(self.list_display)
result.append(AryaConfig.row_edit)
result.append(AryaConfig.row_del)
result.insert(0, AryaConfig.row_checkbox)
return result
def row_del(self,row):
app = self.model_class._meta.app_label
md = self.model_class._meta.model_name
name = "arya:%s_%s_delete" %(app,md,)
url = reverse(viewname=name, args=(row.id,))
print(url)
return mark_safe("<a href='{0}'>删除</a>".format(url))
def row_edit(self,row):
app = self.model_class._meta.app_label
md = self.model_class._meta.model_name
name = "arya:%s_%s_change" %(app, md,)
url = reverse(viewname=name,args=(row.id,))
return mark_safe("<a href='{0}'>编辑</a>".format(url))
def row_checkbox(self,row):
return mark_safe("<input type='checkbox' value='{0}' />".format(row.id))
def __init__(self, model_class,site):
self.model_class = model_class
self.site = site
@property
def urls(self):
from django.conf.urls import url, include
app = self.model_class._meta.app_label
md = self.model_class._meta.model_name
partterns = [
url(r'^$', self.changelist_view, name="%s_%s_list" %(app, md,)),
url(r'^add/',self.add_view,name="%s_%s_add" %(app,md,)),
url(r'^(\d+)/change/',self.change_view,name="%s_%s_change" %(app,md,)),
url(r'^(\d+)/delete/',self.delete_view,name="%s_%s_delete" %(app,md,)),
]
return partterns
def changelist_view(self,request):
table_data = []
queryset = self.model_class.objects.all()
for obj in queryset:
row = []
for str_func in self.get_list_display():
if isinstance(str_func,str):
col = getattr(obj,str_func)
else:
col = str_func(self,obj)
row.append(col)
table_data.append(row)
return render(request,'changelist.html',{'table_data': table_data})
def add_view(self,request):
return HttpResponse('添加页面')
def change_view(self,request,nid):
return HttpResponse('修改页面')
def delete_view(self,request,nid):
return HttpResponse('删除页面')
class AryaSite(object):
def __init__(self):
self._registry = {}
def register(self, class_name, config_class):
self._registry[class_name] = config_class(class_name,self)
@property
def urls(self):
from django.conf.urls import url, include
partterns = [
url(r'^login/', self.login),
url(r'^logout/', self.logout),
]
for model_class,arya_config_obj in self._registry.items():
app_model_name = r'^{0}/{1}/'.format(model_class._meta.app_label,model_class._meta.model_name)
pt = url(app_model_name, (arya_config_obj.urls,None,None))
partterns.append(pt)
return partterns
def login(self,request):
from django.shortcuts import HttpResponse
return HttpResponse('Login')
def logout(self,request):
from django.shortcuts import HttpResponse
return HttpResponse('Logout')
site = AryaSite()
urls.py代码:
from django.conf.urls import url,include
from django.contrib import admin
from arya.service import v1
urlpatterns = [
url(r'^admin/', admin.site.urls),
url(r'arya/', (v1.site.urls,None,'arya')),
]
settings.py修改install_app
'arya.apps.AryaConfig',
'app01',
changelist.html 模板代码:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<table border="1">
{% for row in table_data %}
<tr>
{% for col in row %}
<td>{{ col }}</td>
{% endfor %}
</tr>
{% endfor %}
</table>
</body>
</html>
二、ModelForm插件用法(其他代码参考一)
views.py代码:
from django.shortcuts import render,redirect
from django.forms import ModelForm
from . import models
class TestModelForm(ModelForm):
class Meta:
model = models.UserType
fields = "__all__"
def test(request):
if request.method == "GET":
obj = TestModelForm()
return render(request,'test.html', {'obj':obj})
else:
obj = TestModelForm(data=request.POST)
if obj.is_valid():
obj.save()
return redirect('/arya/app01/usertype/')
return render(request,'test.html', {'obj':obj})
def edit(request,nid):
user_obj = models.UserType.objects.filter(id=nid).first()
if request.method == 'GET':
obj = TestModelForm(instance=user_obj)
return render(request,'edit.html',{'obj':obj})
else:
obj = TestModelForm(instance=user_obj,data=request.POST)
if obj.is_valid():
obj.save()
return redirect('/arya/app01/usertype/')
return render(request, 'edit.html', {'obj':obj})
urls.py
from django.conf.urls import url,include
from django.contrib import admin
from arya.service import v1
from app01 import views
urlpatterns = [
url(r'^admin/', admin.site.urls),
url(r'arya/', (v1.site.urls,None,'arya')),
url(r'^test/',views.test),
url(r'^edit/(\d+)/',views.edit),
]
test.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<h1>添加页面</h1>
<form method="POST" novalidate>
{% csrf_token %}
{{ obj.as_p }}
<input type="submit" value="提交">
</form>
</body>
</html>
edit.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<h1>编辑页面</h1>
<form method="POST" novalidate>
{% csrf_token %}
{{ obj.as_p }}
<input type="submit" value="提交">
</form>
</body>
</html>
