Django admin:使字段在添加中可编辑但不可编辑 [英] Django admin: make field editable in add but not edit

问题描述

我有一个类似的模型:

class Product(models.Model):
    third_party_id = models.CharField(max_length=64, blank=False, unique=True)

使用 Django 默认主键.我希望用户能够通过在添加页面上设置 third_party_id 来添加产品，但我不希望该字段在编辑页面中可编辑以避免损坏 third_party_id.在 Django 文档中，相同的设置似乎用于添加和编辑.这可能吗?

that uses the Django default primary key. I want users to be able to add products by setting the third_party_id on the add page, but I don't want that field editable in the edit page to avoid corrupting the third_party_id. In the Django docs, the same settings appear to be used for add and edit. Is this possible?

推荐答案

不要设置 self.readonly_fields 以避免线程问题.而是覆盖 get_readonly_fields 方法:

Do not set self.readonly_fields to avoid thread issues. Instead override get_readonly_fields method:

def get_readonly_fields(self, request, obj=None):
    if obj: # obj is not None, so this is an edit
        return ['third_party_id',] # Return a list or tuple of readonly fields' names
    else: # This is an addition
        return []

这篇关于Django admin:使字段在添加中可编辑但不可编辑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！