You can override the admin’s get_readonly_fields method: class MyModelAdmin(admin.ModelAdmin): def get_readonly_fields(self, request, obj=None): if obj: # editing an existing object return self.readonly_fields + (‘field1’, ‘field2’) return self.readonly_fields
Set editable to False and default to your default value. http://docs.djangoproject.com/en/stable/ref/models/fields/#editable b = models.CharField(max_length=7, default=”0000000″, editable=False) Also, your id field is unnecessary. Django will add it automatically.
You may not be able to do it directly. From the documentation of list_display ManyToManyField fields aren’t supported, because that would entail executing a separate SQL statement for each row in the table. If you want to do this nonetheless, give your model a custom method, and add that method’s name to list_display. (See below … Read more
You should use ModelAdmin.formfield_overrides. It is quite easy – in admin.py, define: from django.forms import TextInput, Textarea from django.db import models class YourModelAdmin(admin.ModelAdmin): formfield_overrides = { models.CharField: {‘widget’: TextInput(attrs={‘size’:’20’})}, models.TextField: {‘widget’: Textarea(attrs={‘rows’:4, ‘cols’:40})}, } admin.site.register(YourModel, YourModelAdmin)
__unicode__ does do that. Your model should look something like this: class SomeModel(models.Model): def __unicode__(self): return ‘Policy: ‘ + self.name On Python 3 you need to use __str__: def __str__(self): return ‘Policy: ‘ + self.name
Use Readonly Fields. Like so (for django >= 1.2): class MyModelAdmin(admin.ModelAdmin): readonly_fields=(‘first’,)
This is documented, although it’s a bit hard to find – go a couple of screens down from here, and you’ll find this: If the string given is a method of the model, ModelAdmin or a callable that returns True or False Django will display a pretty “on” or “off” icon if you give the … Read more
I loved Greg’s solution to this problem, but I’d like to point that you can do the same thing directly in the admin: from django.db import models class CustomerAdmin(admin.ModelAdmin): list_display = (‘number_of_orders’,) def get_queryset(self, request): # def queryset(self, request): # For Django <1.6 qs = super(CustomerAdmin, self).get_queryset(request) # qs = super(CustomerAdmin, self).queryset(request) # For Django … Read more
Either in your admin.py or in a separate forms.py you can add a ModelForm class and then declare your extra fields inside that as you normally would. I’ve also given an example of how you might use these values in form.save(): from django import forms from yourapp.models import YourModel class YourModelForm(forms.ModelForm): extra_field = forms.CharField() def … Read more
Have you tried adding the __fieldname on those Lingua references in the ListinoTraduttoreAdmin search_fields, like: class ListinoTraduttoreAdmin(admin.ModelAdmin): list_display = (“traduttore”, “linguaDa”, “linguaA”, “prezzoParola”, “prezzoRiga”, “scontoCat”, “scontoFuzzy”, “scontoRipetizioni”) search_fields = [‘traduttore__nome”, “linguaDa__field1”, “linguaA_field2”]