Can you tell me what is wrong in my admin.py file because from exception it
seems that list_display() is having something wrong which I am not able to
find out
On Fri 8 Jun, 2018, 7:23 PM Mario R. Osorio, <nimbiot...@gmail.com> wrote:
> Looks like you skiped a huge part of the tutorial. you might to go back...
>
> On Thursday, June 7, 2018 at 11:08:15 AM UTC-4, Avitab Ayan Sarmah wrote:
>>
>> In windows powershell:
>>
>> ERRORS:
>> <class 'polls.admin.QuestionAdmin'>: (admin.E108) The value of
>> 'list_display[0]' refers to 'question_text', which is not a callable, an
>> attribute of 'QuestionAdmin', or an attribute or method on 'polls.Question'.
>> <class 'polls.admin.QuestionAdmin'>: (admin.E108) The value of
>> 'list_display[1]' refers to 'pub_date', which is not a callable, an
>> attribute of 'QuestionAdmin', or an attribute or method on 'polls.Question'.
>> <class 'polls.admin.QuestionAdmin'>: (admin.E116) The value of
>> 'list_filter[0]' refers to 'pub_date', which does not refer to a Field.
>>
>> System check identified 3 issues (0 silenced).
>>
>> polls\models.py:
>>
>> import datetime
>>
>> from django.db import models
>> from django.utils import timezone
>>
>>
>> class Question(models.Model):
>> #...
>> def was_published_recently(self):
>> now = timezone.now()
>> return now - datetime.timedelta(days=1) <= self.pub_date <= now
>> was_published_recently.admin_order_field = 'pub_date'
>> was_published_recently.boolean = True
>> was_published_recently.short_description = 'published recently?'
>> class Choice(models.Model):
>> #...
>> def __str__(self):
>> return self.choice_text
>> question = models.ForeignKey(Question, on_delete=models.CASCADE)
>> choice_text = models.CharField(max_length=200)
>> votes = models.IntegerField(default=0)
>>
>>
>> polls\admin.py:
>>
>>
>> from django.contrib import admin
>>
>> from . models import Choice, Question
>>
>>
>> class ChoiceInline(admin.TabularInline):
>> model = Choice
>> extra = 3
>>
>>
>> class QuestionAdmin(admin.ModelAdmin):
>> fieldsets = [
>> (None, {'fields': ['question_text']}),
>> ('Date information',{'fields': ['pub_date'], 'classes':
>> ['collapse']}),
>> ]
>> inlines = [ChoiceInline]
>> list_display = ('question_text', 'pub_date', 'was_published_recently')
>> list_filter = ['pub_date']
>>
>> admin.site.register(Question, QuestionAdmin)
>>
>>
>> --
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