如何使用用戶標識創建字典？

Question

我在編程初學者，我有一個障礙，所以基本上我要創建這樣的

set = { 
     user_id_1 : 'result_user_id_1', 
     user_id_2 : 'result_user_id_2', 
     user_id_3 : 'result_user_id_3' 
     } 

簡體我希望每個用戶有它的字典中的得分。

結果來自mytags（teamplatetags），它是所有用戶爲了獲得最終得分而給予彼此分數的分數。

models.py

from django.db import models 
from django.conf import settings 


VALOARE = (
    (1, "Nota 1"), 
    (2, "Nota 2"), 
    (3, "Nota 3"), 
    (4, "Nota 4"), 
    (5, "Nota 5"), 
    (6, "Nota 6"), 
    (7, "Nota 7"), 
    (8, "Nota 8"), 
    (9, "Nota 9"), 
    (10, "Nota 10"), 
) 


class Punctaj(models.Model): 
    acordat_de = models.ForeignKey(settings.AUTH_USER_MODEL, default=0) 
    acordat_catre = models.ForeignKey(settings.AUTH_USER_MODEL, default=0, related_name="acordat_catre") 
    nota = models.PositiveSmallIntegerField(default=0, choices=VALOARE) 

views.py

def home(request): 
    data = dict() 
    data['users']=User.objects.all() 

    if request.method == "POST": 
     for key in request.POST: 
      if 'nota_' in key: 
       nota_acordata = Punctaj.objects.filter(acordat_de=request.user, acordat_catre__id=key.split('_')[1]).first() 
       if nota_acordata: 
        nota_acordata.nota = request.POST.get(key) 
        nota_acordata.save() 

       else: 
        Punctaj.objects.create(acordat_de=request.user, acordat_catre_id=key.split('_')[1], nota=request.POST.get(key)) 
        messages.success(request,"Successfully Voted") 

     return redirect('home') 

    return render(request, "login/home.html", data) 

mytags.py - templatetag

@register.simple_tag 
def results(user): 
    suma = Punctaj.objects.filter(acordat_catre=user).aggregate(punctaj=Sum('nota')).get("punctaj") 
    count = Punctaj.objects.filter(acordat_catre=user).count() 
    if not suma: 
     result = 0 
    else: 
     result = int(suma)/count 
    return result 

模板

<form class ="nota" method="POST" action="">{% csrf_token %} 
    <table class="table table-striped table-bordered"> 
     <thead> 
      <tr> 
       <th> User </th> 
       <th> Nota finala </th> 
      </tr> 
     </thead> 

     <tbody> 
     {% for fotbalist in users %} 
      <tr> 
       <td>{{ fotbalist.username }}</td> 
       <td> 
        <p>{% results fotbalist %}</p> 
       </td> 
      </tr> 
     {% endfor %} 
     </tbody> 
    </table> 
</form> 

Answer 1

您正在尋找annotate，看起來像你只是想爲每個用戶平均「nota」？

User.objects.annotate(score=Avg('acordat_catre__nota')) 

得到的用戶列表現在將有一個屬性「分數」，一個加此接近，相比模板標籤，是它會降低查詢的次數，你讓相當

你模板是現在

{% for fotbalist in users %} 
     <tr> 
      <td>{{ fotbalist.username }}</td> 
      <td> 
       <p>{{ fotbalist.score }}</p> 
      </td> 
     </tr> 
    {% endfor %} 

如果你真的只是想詞典中，你需要做的

dict(User.objects.annotate(score=Avg('acordat_catre__nota')).values_list('id', 'score'))