本文介绍了Django管理员有很多选择的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有以下 models.py
和 admin.py
文件。目的是允许在必要时为给定产品选择多个类别。
I have the following models.py
and admin.py
files. The intention is to allow for selection of multiple categories for a given product if necessary.
models.py
class Product(models.Model):
organization = models.ForeignKey(Organization)
name = models.CharField(max_length=50)
brief = models.CharField(max_length=100)
descrip = models.TextField(max_length=1300)
categories = models.ManyToManyField('Product_Category')
class Product_Category(models.Model):
cats = {"AUT":"Automation", "PWA":"Personal Wealth Advisory",
"BCH":"Blockchain", "LOS":"Loan Origination", "FX":"Foreign Exchange"}
choices = tuple((human, c) for human, c in cats.items())
name = models.CharField(max_length=32, choices=choices)
admin.py
from .models import Product, Product_Feature, Organization, Product_Category
class PFeatureInLine(admin.StackedInline):
model = Product_Feature
extra = 1
class ProductForm(forms.ModelForm):
logo_file = forms.ImageField()
def save(self, commit=True):
logo_file = self.cleaned_data.get("logo_file", None)
self.instance.logo = b64encode(logo_file.read()).decode("utf-8")
return forms.BaseModelForm.save(self, commit=commit)
class Meta():
exclude = ["logo"]
model = Product
class ProductAdmin(admin.ModelAdmin):
form = ProductForm
inlines = [PFeatureInLine,]
admin.site.register(Product, ProductAdmin)
admin.site.register(Organization)
通过管理员访问 Products
对象时,结果如下:
This results in the following, when accessing a Products
object through admin:
推荐答案
您是否需要像t一样显示他的?
Are you need to display like this?
我建议您使用 FilteredSelectMultiple
:
from django import forms
from django.contrib import admin
from django.contrib.admin.widgets import FilteredSelectMultiple
from .models import Product, Product_Feature, Organization, Product_Category
class ProductForm(forms.ModelForm):
logo_file = forms.ImageField()
categories = forms.ModelMultipleChoiceField(
queryset=Product_Category.objects.all(),
required=False,
widget=FilteredSelectMultiple(
verbose_name=_('Categories'),
is_stacked=False
)
)
def __init__(self, *args, **kwargs):
super(ProductForm, self).__init__(*args, **kwargs)
if self.instance and self.instance.pk:
self.fields['categories'].initial = self.instance.categories.all()
def save(self, commit=True):
logo_file = self.cleaned_data.get("logo_file", None)
self.instance.logo = b64encode(logo_file.read()).decode("utf-8")
return forms.BaseModelForm.save(self, commit=commit)
class Meta:
exclude = ['logo']
model = Product
class ProductAdmin(admin.ModelAdmin):
form = ProductForm
inlines = [PFeatureInLine,]
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