在django admin上编辑实际对象之前保存相关对象 [英] Save the related objects before the actual object being edited on django admin
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问题描述
可以在django管理表单上编辑实际对象之前保存相关对象吗?
例如:
$
models.py
class Parent( model.Model):
pass
class Child(model.Model):
parent = models.ForeignKey(Parent)
@receiver(post_save ,sender = Parent)
def notify_parent_save(sender,instance = None,** kwargs):
打印父保存
@receiver(post_save,sender = Child)
def notify_child_save(sender,instance = None,** kwargs):
printChild saved
$ p code code code code code code code code code $ c $ .TabularInline):
model = Child
extra = 1
class ParentsAdmin(admin.ModelAdmin):
inlines = [ChildInline]
admin.site.register(Parent,ParentsAdmin)
现在,在django管理员中,如果我保存父对象,它会的输出控制台。
父保存
pre>
儿童保存
我需要这样来修复:
孩子保存
父保存
解决方案以下将保存孩子们首先:
class ParentAdmin(admin.ModelAdmin):
inlines = [ChildInline]
def save_model(self,request,obj,form,change):
pass#不实际保存父实例
def save_formset(self,request,form,formset,更改):
formset.save()#这将保存孩子
form.instance.save()#form.instance是父
Is it possible to save the related objects before the actual object being edited on a django admin form?
For example:
in
models.py
class Parent(model.Model): pass class Child(model.Model): parent = models.ForeignKey(Parent) @receiver(post_save,sender = Parent) def notify_parent_save(sender, instance=None, **kwargs): print "Parent save" @receiver(post_save,sender = Child) def notify_child_save(sender, instance=None, **kwargs): print "Child saved"
in
admin.py
class ChildInline(admin.TabularInline): model = Child extra = 1 class ParentsAdmin(admin.ModelAdmin): inlines = [ChildInline] admin.site.register(Parent,ParentsAdmin)
Now, in django admin if I save a parent object, it will output on the console.
Parent save Child save
I need this to happen in revese order:
Child save Parent save
解决方案The following will save the children first:
class ParentAdmin(admin.ModelAdmin): inlines = [ChildInline] def save_model(self, request, obj, form, change): pass # don't actually save the parent instance def save_formset(self, request, form, formset, change): formset.save() # this will save the children form.instance.save() # form.instance is the parent
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