Django Admin不保存保留初始状态的预填充内联字段 [英] Django Admin not saving pre-populated inline fields which are left in their initial state

问题描述

我有一些用于初始化一些内联子对象的自定义管理代码。

I have some custom admin code which initialises some inline child objects.

如果用户编辑了内联子对象的默认值之一，则将创建该子元素

If the user edits one of the inline child object's default values, then that child element is created when the parent object is saved.

我假设Django正在检查值是否已从其初始值更改，并且

I assume that Django is checking whether values have changed from their initial values and only saving if the user has changed a value.

是这种情况吗？

如何强制Django如果用户选择不更改默认值，管理员将使用其默认值保持不变来创建内联子对象？

How do I force Django Admin to create inline child objects with their unchanged default values, if the user chooses not to change the default values?

class PrepopIpInlineFormSet(forms.models.BaseInlineFormSet):
    model = Ip

    def __init__(self, *args, **kwargs):
        super(PrepopIpInlineFormSet, self).__init__(*args, **kwargs)
        initial = # calculate a set of default Ip model initial values
        self.initial = initial


class PrepopIpInline(admin.options.InlineModelAdmin):
    template = "admin/linked.html"
    model = Ip
    formset = PrepopIpInlineFormSet
    fk_name = 'sim'
    admin_model_path = None
    show_url = True

    def __init__(self, *args):
        super(PrepopIpInline, self).__init__(*args)
        if self.admin_model_path is None:
            self.admin_model_path = self.model.__name__.lower()

    def get_formset(self, request, obj=None, **kwargs):
        formset = super(PrepopIpInline, self).get_formset(request, obj, **kwargs)
        formset.request = request
        return formset

    def get_extra(self, request, obj=None, **kwargs):
        if obj:
            return 0
        else:
            return ApnGgsn.objects.all().count()

推荐答案

来源：如何强制执行-保存内联的空 /未更改的django管理员？

from django.contrib import admin
from django.forms.models import BaseInlineFormSet, ModelForm

class AlwaysChangedModelForm(ModelForm):
    def has_changed(self):
        """ Should returns True if data differs from initial. 
        By always returning true even unchanged inlines will get validated and saved."""
        return True

class CheckerInline(admin.StackedInline):
    """ Base class for checker inlines """
    extra = 0
    form = AlwaysChangedModelForm

这篇关于Django Admin不保存保留初始状态的预填充内联字段的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！