Django admin 中的自定义验证 [英] Custom validation in Django admin

问题描述

I have a very simple Django app in order to record the lectures given my colleagues.Since it is quite elementary,I am using the Django admin itself. Here is my models.py:

#models.py
from django.db import models

class Lecture(models.Model):
    topic = models.CharField(max_length=100)
    speaker = models.CharField(max_length=100)
    start_date = models.DateField()
    end_date = models.DateField()

I need to ensure that nobody enters the start date after the end date in the admin forms,so I read the django docs for custom validation in the admin and implemented the following in my admin.py:

#admin.py
from models import Lecture
from django.contrib import admin
from django import forms


class LectureForm(forms.ModelForm):
    class Meta:
        model = Lecture

        def clean(self):
            start_date = self.cleaned_data.get('start_date')
            end_date = self.cleaned_data.get('end_date')
            if start_date > end_date:
                raise forms.ValidationError("Dates are incorrect")
        return self.cleaned_data


class LectureAdmin(admin.ModelAdmin):
    form = LectureForm
    list_display = ('topic', 'speaker', 'start_date', 'end_date')

admin.site.register(Lecture, LectureAdmin)

However,this has no effect whatsoever on my admin and I am able to save lectures where start_date is after end_date as seen in the image:

What am I doing wrong ??

解决方案

You have an indentation issue. Your clean method is indented within the form's Meta class. Move it back one level. Also, ensure that the return statement is indented within the method.

这篇关于Django admin 中的自定义验证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！