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day 84 Xadmin组件之构建表单数据
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一 、先设置一些相关配置
1. 创建数据库模型。 在app01 下创建
from django.db import models# Create your models here.class Author(models.Model):
nid = models.AutoField(primary_key=True)
name=models.CharField( max_length=)
age=models.IntegerField() # 与AuthorDetail建立一对一的关系
authorDetail=models.OneToOneField(to="AuthorDetail",on_delete=models.CASCADE)class AuthorDetail(models.Model): nid = models.AutoField(primary_key=True)
birthday=models.DateField()
telephone=models.BigIntegerField()
addr=models.CharField( max_length=)class Publish(models.Model):
nid = models.AutoField(primary_key=True)
name=models.CharField( max_length=)
city=models.CharField( max_length=)
email=models.EmailField()class Book(models.Model): nid = models.AutoField(primary_key=True)
title = models.CharField( max_length=)
publishDate=models.DateField()
price=models.DecimalField(max_digits=,decimal_places=) # 与Publish建立一对多的关系,外键字段建立在多的一方
publish=models.ForeignKey(to="Publish",to_field="nid",on_delete=models.CASCADE)
# 与Author表建立多对多的关系,ManyToManyField可以建在两个模型中的任意一个，自动创建第三张表
authors=models.ManyToManyField(to='Author',)
然后在迁移 . 命令为 python manage.py makemigrations / python manage.py migrate
2 . 创建数据库模型在，app02 下面
3. 然后在settings里进行配置.
4. 设置静态文件路径
5. 设置数据库
6. URL路由
urlpatterns = [
url(r'^admin/', admin.site.urls),
url(r'^Xadmin/', site.urls),
url(r'^index/', foo),
]
class XadminSite(object): def __init__(self, name='admin'):
self._registry = {} def get_urls(self): print(self._registry) # {Book:modelAdmin(Book),.......} temp = []
for model, admin_class_obj in self._registry.items():
# 获取当前循环的model的字符串与所在app的字符串
app_name = model._meta.app_label # "app01"
model_name = model._meta.model_name # "book" temp.append(url(r'^{0}/{1}/'.format(app_name, model_name),admin_class_obj.urls2), ) '''
url(r"app01/book",ModelXadmin(Book,site).urls2)
url(r"app01/publish",ModelXadmin(Publish,site).urls2)
url(r"app02/order",ModelXadmin(Order,site).urls2) '''
return temp @property
def urls(self):
return self.get_urls(),None,None def register(self, model, admin_class=None, **options):
if not admin_class:
admin_class = ModelXadmin self._registry[model] = admin_class(model, self) # {Book:ModelAdmin(Book),Publish:ModelAdmin(Publish)}site=XadminSite()
XadminSite 类
self._registry 打印的东西
打印结果：
{<class 'app01.models.Book'>: <app01.Xadmin.BookConfig object at 0x0000016253049BA8>,
<class 'app01.models.Publish'>: <Xadmin.service.Xadmin.ModelXadmin object at 0x0000016253049BE0>,
<class 'app01.models.Author'>: <Xadmin.service.Xadmin.ModelXadmin object at 0x0000016253049CC0>,
<class 'app01.models.AuthorDetail'>: <Xadmin.service.Xadmin.ModelXadmin object at 0x00000162530520F0>,
<class 'app02.models.Order'>: <Xadmin.service.Xadmin.ModelXadmin object at 0x0000016253052358>,
<class 'app02.models.Food'>: <app02.Xadmin.FoodConfig object at 0x0000016253052390>}
def add_view(self, request):
return render(request, 'add_view.html') def change_view(self, request, id):
return render(request, 'change_view.html') def delete_view(self, request, id):
return render(request, 'delete_view.html') def get_urls2(self):
temp = [] temp.append(url(r"^$", self.list_view))
temp.append(url(r"^add/$", self.add_view))
temp.append(url(r"^(\d+)/change/$", self.change_view))
temp.append(url(r"^(\d+)/delete/$", self.delete_view)) return temp
处理表头数据 放在了 ModelXadmin python文件夹下 ：处理表头数据 def list_view(self, request):
print("self.model", self.model) # 用户访问哪张表，self.model就是谁。
model_name=self.model._meta.model_name
data_list = self.model.objects.all()
print("list_display:",self.list_display) ## ['title', 'prcie'] # 处理表头
#header_list=["ID","书籍名称","出版社"]
header_list=[] for field in self.list_display: # [check,"nid","title","publish",edit,delete]
if isinstance(field,str):
if field=="__str__":
val= self.model._meta.model_name.upper()
else:
field_obj=self.model._meta.get_field(field)
val=field_obj.verbose_name else:
val=field(self,is_header=True) # 获取表头，传is_header=True
处理表单数据# 处理表单数据
new_data_list=[]
for obj in data_list: # data_list [book_obj,book_obj2,...] temp=[]
for field in self.list_display: # ['title', 'prcie',edit,delete]
if isinstance(field,str):
val=getattr(obj,field)
else:
val=field(self,obj) temp.append(val) new_data_list.append(temp)
处理表单数据
def list_view(self, request):
print("self.model", self.model) # 用户访问哪张表，self.model就是谁。
model_name=self.model._meta.model_name
data_list = self.model.objects.all()
print("list_display:",self.list_display) ## ['title', 'prcie'] # 处理表头
#header_list=["ID","书籍名称","出版社"]
header_list=[] for field in self.list_display: # [check,"nid","title","publish",edit,delete]
if isinstance(field,str):
if field=="__str__":
val= self.model._meta.model_name.upper()
else:
field_obj=self.model._meta.get_field(field)
val=field_obj.verbose_name else:
val=field(self,is_header=True) # 获取表头，传is_header=True
# 处理表单数据
new_data_list=[]
for obj in data_list: # data_list [book_obj,book_obj2,...] temp=[]
for field in self.list_display: # ['title', 'prcie',edit,delete]
if isinstance(field,str):
val=getattr(obj,field)
else:
val=field(self,obj) temp.append(val) new_data_list.append(temp)
处理表单数据
在Xadmin文件下的app 文件中添加如下代码
from django.apps import AppConfig
from django.utils.module_loading import autodiscover_modules class XadminConfig(AppConfig):
name = 'Xadmin'
def ready(self):
autodiscover_modules('Xadmin')
处理表头数据class ModelXadmin(object):
list_display=["__str__",] def __init__(self,model,site):
self.model =model
self.site =site def list_view(self,request):
print("self.model9999999999999",self.model) #用户访问哪张表，self.model就是谁。
self.model9999999999999 <class 'app01.models.Book'>
model_name =self.model._meta.model_name
data_list = self.model.objects.all()
print("list_display",self.list_display)##['title','price]
list_display [<function BookConfig.check at 0x000001A2AF7C5730>, 'nid', 'title', 'publish', 'price', <function BookConfig.edit at 0x000001A2AF7BBAE8>, <function BookConfig.delete at 0x000001A2AF7C57B8>]
#处理表头
header_list=[]
#[check,'nid','title','publish','price',edit,delete]
for field in self.list_display:# model类的字段
if isinstance(field,str):
if field =='__str__':
print(field)
val =self.model._meta.model_name.upper()
print('val',val)
else:
field_obj =self.model._meta.get_field(field)
print('11111111111',field_obj)
val =field_obj.verbose_name
print(val)
11111111111 app01.Book.nid
nid
11111111111 app01.Book.title
title
11111111111 app01.Book.publish
publish
11111111111 app01.Book.price
price
else:
val = field(self,is_header=True) #获取表头，传is_header=True
header_list.append(val)
class ModelXadmin(object):
list_display=["__str__",] def __init__(self,model,site):
self.model =model
self.site =site def list_view(self,request):
print("self.model9999999999999",self.model) #用户访问哪张表，self.model就是谁。
self.model9999999999999 <class 'app01.models.Book'>
model_name =self.model._meta.model_name
data_list = self.model.objects.all()
print("list_display",self.list_display)##['title','price]
list_display [<function BookConfig.check at 0x000001A2AF7C5730>, 'nid', 'title', 'publish', 'price', <function BookConfig.edit at 0x000001A2AF7BBAE8>, <function BookConfig.delete at 0x000001A2AF7C57B8>]
#处理表头
header_list=[]
#[check,'nid','title','publish','price',edit,delete]
for field in self.list_display:# model类的字段
if isinstance(field,str):
if field =='__str__':
print(field)
val =self.model._meta.model_name.upper()
print('val',val)
else:
field_obj =self.model._meta.get_field(field)
print('11111111111',field_obj)
val =field_obj.verbose_name
print(val)
11111111111 app01.Book.nid
nid
11111111111 app01.Book.title
title
11111111111 app01.Book.publish
publish
11111111111 app01.Book.price
price
else:
val = field(self,is_header=True) #获取表头，传is_header=True
header_list.append(val)
输出结果：
self.model9999999999999 <class 'app01.models.Book'>
list_display [<function BookConfig.check at 0x000001A2AF7C5730>, 'nid', 'title', 'publish', 'price', <function BookConfig.edit at 0x000001A2AF7BBAE8>, <function BookConfig.delete at 0x000001A2AF7C57B8>]
app01.Book.nid
nid
app01.Book.title
title
app01.Book.publish
publish
app01.Book.price
price
Book object
表单数据body 的处理 #处理表单数据
new_data_list=[]
for obj in data_list:# data_list [book_obj,book_obj2...]
print(obj)
temp =[]
for field in self.list_display:
if isinstance(field,str):
val = getattr(obj,field)
else:
val =field(self,obj)
temp.append(val)
new_data_list.append(temp)
print('',new_data_list)
return render(request, 'list_view.html', {"new_data_list": new_data_list,"model_name":model_name,"header_list":header_list})
#处理表单数据
new_data_list=[]
for obj in data_list:# data_list [book_obj,book_obj2...]
print(obj)
temp =[]
for field in self.list_display:
if isinstance(field,str):
val = getattr(obj,field)
else:
val =field(self,obj)
temp.append(val)
new_data_list.append(temp)
print('',new_data_list)
return render(request, 'list_view.html', {"new_data_list": new_data_list,"model_name":model_name,"header_list":header_list})
结果：
8888 [[None, 1, 'linux', <Publish: 五道口出版社>, Decimal('111.00'), "<a herf ='Book object/change/>编辑</a>", "<input type ='checkbox'>"]]
Book object
8888 [[None, 1, 'linux', <Publish: 五道口出版社>, Decimal('111.00'), "<a herf ='Book object/change/>编辑</a>", "<input type ='checkbox'>"], [None, 2, 'go', <Publish: 上地出版社>, Decimal('222.00'), "<a herf ='Book object/change/>编辑</a>", "<input type ='checkbox'>"]]
Book object
8888 [[None, 1, 'linux', <Publish: 五道口出版社>, Decimal('111.00'), "<a herf ='Book object/change/>编辑</a>", "<input type ='checkbox'>"], [None, 2, 'go', <Publish: 上地出版社>, Decimal('222.00'), "<a herf ='Book object/change/>编辑</a>", "<input type ='checkbox'>"], [None, 3, 'python', <Publish: 五道口出版社>, Decimal('333.00'), "<a herf ='Book object/change/>编辑</a>", "<input type ='checkbox'>"]]
Book object
8888 [[None, 1, 'linux', <Publish: 五道口出版社>, Decimal('111.00'), "<a herf ='Book object/change/>编辑</a>", "<input type ='checkbox'>"], [None, 2, 'go', <Publish: 上地出版社>, Decimal('222.00'), "<a herf ='Book object/change/>编辑</a>", "<input type ='checkbox'>"], [None, 3, 'python', <Publish: 五道口出版社>, Decimal('333.00'), "<a herf ='Book object/change/>编辑</a>", "<input type ='checkbox'>"], [None, 4, 'c', <Publish: 清华出版社>, Decimal('444.00'), "<a herf ='Book object/change/>编辑</a>", "<input type ='checkbox'>"]]
