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POdjango: calculate percentage based on object count
primarykey
Id
19286834
data
AcceptedAnswerId
19287255
AnswerCount
1
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2013-10-10T03:59:02.617
FavoriteCount
1
LastActivityDate
2013-10-13T03:41:20.357
LastEditDate
2013-10-13T03:41:20.357
LastEditorUserId
1902864
OwnerUserId
500401
ParentId
0
PostTypeId
1
Score
1
ViewCount
3460
LastEditorDisplayName
text
Body
I have the following models: <pre><code>class Question(models.Model): question = models.CharField(max_length=100) class Option(models.Model): question = models.ForeignKey(Question) value = models.CharField(max_length=200) class Answer(models.Model): option = models.ForeignKey(Option) </code></pre> Each <code>Question</code> has <code>Options</code> defined by the User. For Example: Question - What is the best fruit? Options - Apple, Orange, Grapes. Now other user's can <code>Answer</code> the question with their responses restricted to <code>Options</code>. I have the following view: <pre><code>def detail(request, question_id): q = Question.objects.select_related().get(id=question_id) a = Answer.objects.filter(option__question=question_id) o = Option.objects.filter(question=question_id).annotate(num_votes=Count('answer')) return render(request, 'test.html', { 'q':q, 'a':a, 'o':o, }) </code></pre> For each option in o, I am receiving an answer count. For example: Question - What is the best fruit? Option - Grape, Orange, Apple Answer - Grape: 5votes, Orange 5votes, Apple 10vote. What is the best way to calculate the vote percentage for each option out of the total number of votes for that question? In other words, I want something like this: Answer - Grape: 5votes 25%votes, Orange 5votes 25%votes, Apple 10vote 50%votes. test.html <pre><code>{% for opt in o %} <tr> <td>{{ opt }}</td> <td>{{ opt.num_votes }}</td> <td>PERCENT GOES hERE</td> </tr> {% endfor %} <div> {% for key, value in perc_dict.items %} {{ value|floatformat:"0" }}% {% endfor %} </div> </code></pre>
Tags
<python><django><django-models><django-templates><aggregate>
Title
django: calculate percentage based on object count
singulars
PostAcceptedAnswerId
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USJosh Scholl
UserOwnerUserId
1. USthedeepfield
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
VotesPostIdCreationDate
1. VO
 singulars
 PostPostId
 POdjango: calculate percentage based on object count
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTApproveEditSuggestion
2. VO
 singulars
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 POdjango: calculate percentage based on object count
 UserUserId
 USmcrsam
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1. This table or related slice is empty.

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