擅长:python、mysql、java
<p>您应该重写<a href="https://docs.djangoproject.com/en/1.8/ref/contrib/admin/#django.contrib.admin.ModelAdmin.get_readonly_fields" rel="nofollow">^{<cd2>}</a>,而不是设置^{cd1>}。在</p>
<pre><code>def get_readonly_fields(request, obj=None):
if obj is None: # add form
return []
else:
return ['colour']
</code></pre>