#28233: Improve the "price_per_page" example in the Documentation on Aggregation
-------------------------------------+-------------------------------------
               Reporter:  liushigit  |          Owner:  nobody
                   Type:             |         Status:  new
  Cleanup/optimization               |
              Component:             |        Version:  1.11
  Documentation                      |       Keywords:  Documentation,
               Severity:  Normal     |  Aggregation, Code Example
           Triage Stage:             |      Has patch:  0
  Unreviewed                         |
    Needs documentation:  0          |    Needs tests:  0
Patch needs improvement:  0          |  Easy pickings:  1
                  UI/UX:  0          |
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 This example is not very clear. There has been some talk about it:
 https://groups.google.com/forum/#!topic/django-users/CqEGJCI5aNs

 {{{
 # Cost per page
 >>> from django.db.models import F, FloatField, Sum
 >>> Book.objects.all().aggregate(
 ...    price_per_page=Sum(F('price')/F('pages'),
 output_field=FloatField()))
 {'price_per_page': 0.4470664529184653}
 }}}

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Ticket URL: <https://code.djangoproject.com/ticket/28233>
Django <https://code.djangoproject.com/>
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