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How to exclude values in django aggregation?


By : Yamada Kenji
Date : October 14 2020, 02:21 PM
To fix the issue you can do You can use a Case and When within a Sum annotation:
code :
Sum(
    Case(
        When(
            another_model__field_value__lt=0,
            then=F('another_model__field_value'),
        ),
        default=F('another_model__other_field_value'),
        output_field=IntegerField(),
    )
)


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Aggregation and extra values with Django


By : user2114000
Date : March 29 2020, 07:55 AM
wish of those help What you want to do is annotate the query, so that you get back your usual results but also have some data added to the result. So:
code :
MyModel.objects.annotate(Min("value"))
MyModel.objects.values('date').annotate(Min("value"))
MyModel.objects.values('date').annotate(min_value=Min('value')).order_by('min_value')[0] 

Django Aggregation of values queryset


By : payal.m
Date : March 29 2020, 07:55 AM
To fix the issue you can do I have a ValuesQuerySet called data.
code :
 lists = ModelName.objects.values('type').annotate(count=Count('type'))
 {% for list in lists %}
     {{list.type}} - {{list.count}}<br/>
 {% endfor %}
 {{lists}}
 //don't use forloop yet. This will tests if the above query produce data or it is empty
def view_name(request):
    lists = ModelName.objects.values_list('type', flat=True).distinct()
    types = []
    for list in lists:
        type_count = ModelName.objects.filter(type=list.type).count()
        types.append({'type': list.type, 'count': type_count})

    return render(request, 'page.html', {
            'types': types,
    })

{% for type in types %}
    {{type.type}} - {{type.count}}
{% endfor %}

Exclude nil values from ElasticSearch Aggregation


By : COTC95
Date : March 29 2020, 07:55 AM
it fixes the issue I was using this query to retrieve the most significant values: , I believe your ES query should translate to something like this:
code :
  "size": 5,
  "query": {
    "filtered": {
      "query": { "match": { "question_id" : 32481 } },
      "filter": {
        "exists": {
          "field": "text"
        }
      }
    }
  },
  "aggs": {
    "keywords": {
      "significant_terms": {
        "field": "text"
      }
    }
  }

ElasticSearch aggregation: exclude one filter per aggregation


By : Mark
Date : March 29 2020, 07:55 AM
hope this fix your issue The global scope provides access to every document, you can then add the same filters you used for the main query.
I gave an example with global scope in this related topic

Django aggregation max overrides values in query


By : Theo
Date : March 29 2020, 07:55 AM
Hope that helps There are two ways to aggregate information in a queryset. The aggregate() method just yields the summary, NOT the rest of the information in the queryset. From your expected result, you should probably be using annotate() instead, which will add your aggregated value to the queryset values.
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