Akshar Raaj akshar-raaj

## celery.md

      
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                / celery.md
            
            
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              December 16, 2022 16:12
            
          
    This post is targetted towards Celery beginners. It discusses different ways to run Celery.

Using celery with a single module
Using celery with multiple modules.
Using celery with multiple modules split across packages.

Prerequisites

You should have Celery and Redis installed. We will use Redis as our broker.

  
## num_questions_per_question_text.py
Question.objects.values('question_text').annotate(cnt=Count('question_text'))

## average_votes_per_question.py
Question.objects.annotate(avg_votes=Avg('choice__votes'))

## average_votes_per_choice.py
Choice.objects.aggregate(avg=Avg('votes'))

## total_votes_cast.py
Choice.objects.aggregate(num_votes=Sum('votes'))

## question_with_no_choices.py
Question.objects.annotate(num_votes=Sum('choice__votes')).filter(num_votes__isnull=True)

## question_with_minimum_votes.py
Question.objects.annotate(num_votes=Sum('choice__votes')).filter(num_votes__isnull=False).order_by('num_votes')[0]

## question_with_maximum_votes.py
Question.objects.annotate(num_votes=Sum('choice__votes')).filter(num_votes__isnull=False).order_by('-num_votes')[0]

## num_votes_per_question.py
 Question.objects.annotate(num_votes=Sum('choice__votes'))

## num_choices_per_question_after_filtering.py
Question.objects.filter(question_text='Is the color of sky blue').annotate(choice_count=Count('choice'))