Python Django ModelAdmin额外输入字段不是来自模型
我正在尝试为我拥有的模型向Python Django ModelAdmin额外输入字段不是来自模型,python,django,Python,Django,我正在尝试为我拥有的模型向admin.ModelAdmin添加一个额外的输入,以便在另一个输入发生更改时记录一些可选文本 我无法将自定义的模型形式识别为名称“EquipmentAdmin”未定义。我尝试过几种不同的导入方式,但我想我一定错过了一些明显的东西。感觉在EquipmentAdmin和EquipmentAdminForm之间有一个循环引用,因为它们都在代码中包含对彼此的引用 我已经创建了我的Django应用程序Flightdeck,并将它们都放在同一个文件夹中 型号.py from dj
admin.ModelAdmin
添加一个额外的输入,以便在另一个输入发生更改时记录一些可选文本
我无法将自定义的模型形式
识别为名称“EquipmentAdmin”未定义
。我尝试过几种不同的导入方式,但我想我一定错过了一些明显的东西。感觉在EquipmentAdmin
和EquipmentAdminForm
之间有一个循环引用,因为它们都在代码中包含对彼此的引用
我已经创建了我的Django应用程序Flightdeck
,并将它们都放在同一个文件夹中
型号.py
from django.db import models
class Location(models.Model):
name = models.CharField(max_length=45)
class Equipment(models.Model):
unit_id = models.CharField(max_length=45)
located = models.ForeignKey(Location)
located_from = models.DateField()
class EquipmentLocationHistory(models.Model):
unit = models.ForeignKey(Equipment)
located = models.ForeignKey(Location)
start = models.DateField()
end = models.DateField()
change_reason = models.CharField(max_length=45)
from django.contrib import admin
from flightdeck.models import *
from flightdeck.forms import EquipmentAdminForm
class EquipmentAdmin(admin.ModelAdmin):
form = EquipmentAdminForm
def save_model(self, request, obj, form, change):
if 'located' in form.changed_data:
try:
old = Equipment.objects.get(unit_id=obj.unit_id)
except Equipment.DoesNotExist:
old = None
if old:
if 'located' in form.changed_data:
located_history = EquipmentLocationHistory(unit=obj, located=old.located, start=old.located_from, end=obj.located_from)
located_history.save()
obj.save()
from django import forms
from django.contrib import admin
class EquipmentAdminForm(forms.ModelForm):
reason = forms.CharField()
class Meta:
model = EquipmentAdmin
admin.py
from django.db import models
class Location(models.Model):
name = models.CharField(max_length=45)
class Equipment(models.Model):
unit_id = models.CharField(max_length=45)
located = models.ForeignKey(Location)
located_from = models.DateField()
class EquipmentLocationHistory(models.Model):
unit = models.ForeignKey(Equipment)
located = models.ForeignKey(Location)
start = models.DateField()
end = models.DateField()
change_reason = models.CharField(max_length=45)
from django.contrib import admin
from flightdeck.models import *
from flightdeck.forms import EquipmentAdminForm
class EquipmentAdmin(admin.ModelAdmin):
form = EquipmentAdminForm
def save_model(self, request, obj, form, change):
if 'located' in form.changed_data:
try:
old = Equipment.objects.get(unit_id=obj.unit_id)
except Equipment.DoesNotExist:
old = None
if old:
if 'located' in form.changed_data:
located_history = EquipmentLocationHistory(unit=obj, located=old.located, start=old.located_from, end=obj.located_from)
located_history.save()
obj.save()
from django import forms
from django.contrib import admin
class EquipmentAdminForm(forms.ModelForm):
reason = forms.CharField()
class Meta:
model = EquipmentAdmin
forms.py
from django.db import models
class Location(models.Model):
name = models.CharField(max_length=45)
class Equipment(models.Model):
unit_id = models.CharField(max_length=45)
located = models.ForeignKey(Location)
located_from = models.DateField()
class EquipmentLocationHistory(models.Model):
unit = models.ForeignKey(Equipment)
located = models.ForeignKey(Location)
start = models.DateField()
end = models.DateField()
change_reason = models.CharField(max_length=45)
from django.contrib import admin
from flightdeck.models import *
from flightdeck.forms import EquipmentAdminForm
class EquipmentAdmin(admin.ModelAdmin):
form = EquipmentAdminForm
def save_model(self, request, obj, form, change):
if 'located' in form.changed_data:
try:
old = Equipment.objects.get(unit_id=obj.unit_id)
except Equipment.DoesNotExist:
old = None
if old:
if 'located' in form.changed_data:
located_history = EquipmentLocationHistory(unit=obj, located=old.located, start=old.located_from, end=obj.located_from)
located_history.save()
obj.save()
from django import forms
from django.contrib import admin
class EquipmentAdminForm(forms.ModelForm):
reason = forms.CharField()
class Meta:
model = EquipmentAdmin
我想在添加
EquipmentLocationHistory
时包含reason
值,但由于未加载EquipmentAdminForm
,因此无法测试我拥有的内容。EquipmentAdmin
不是模型。您的模型需要参考设备
from django import forms
from django.contrib import admin
from flightdeck.models import Equipment
class EquipmentAdminForm(forms.ModelForm):
reason = forms.CharField()
class Meta:
model = Equipment
PS:当你有循环引用时,有很多方法可以解决这个问题。使用模型导入和django的最佳方法是使用django.db.models.get_model('app','model')