質問編集履歴
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結果
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|クラス|担任|出席番号|性別|名前|点数|
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|1|I先生|1|男|Aくん|60|
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|1|I先生|2|男|Bくん|45|
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|1|I先生|3|男|Cくん|100|
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|1|I先生|4|女|Dさん|60|
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|1|I先生|5|女|Eさん|60|
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|1|I先生|6|女|Fさん|90|
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|2|J先生|1|男|イくん|55|
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|2|J先生|2|男|ロくん|80|
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|2|J先生|3|男|ハくん|60|
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|2|J先生|4|女|二さん|40|
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|2|J先生|5|女|ホさん|60|
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|2|J先生|6|女|へさん|70|
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誤って書きかけを投稿してしまったので更新
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#困っているところ
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Djangoを使ったアプリ開発に挑戦しているのですが、テーブルの並び替えと分割の仕方がわからず思うようにできません。ひとまず、簡単な例に置き換えて挑戦しています。以下の問題でわかる方がいらっしゃればご教授いただければ幸いです。
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#環境
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python 3.9.5
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Django 3.2.4
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#モデル
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アプリが以下の二つのテーブルを有するとします。
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```django
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#===================================================================
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#models.py
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#===================================================================
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from django.db import models
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# Create your models here.
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List = (('Male','男'),('Female','女'))
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class ClassModel (models.Model):
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ClassNumber = models.IntegerField()
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HomeroomTeacher = models.CharField(max_length=20)
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class MenberModel (models.Model):
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BelongClass = models.ForeignKey(ClassModel,on_delete=models.CASCADE)
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ForM = models.CharField(choices=List,max_length= 6,default='Male')
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Number = models.IntegerField()
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Name = models.CharField(max_length=20)
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Point = models.IntegerField()
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```
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・クラステーブル
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#試したこと
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以下のように、#1の個所で、「order_by」を使って並び替えをしてみました。うまくいっているように見えたのですがこれでは、「ClassModel」のidで並び替えられただけで、ClassModelのClassNumberでは並び変わりませんでした。
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``` django
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#===================================================================
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#===================================================================
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#views.py
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#===================================================================
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from django.
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from django.shortcuts import render
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from .models import ClassModel,MenberModel
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def tabletest(request):
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object_list = MenberModel.objects.order_by('BelongClass','Number') #1
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object_list2 = ClassModel.objects.all
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HomeroomTeacher = models.CharField(max_length=20)
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class MenberModel (models.Model):
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BelongClass = models.ForeignKey(ClassModel,on_delete=models.CASCADE)
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return render(request, 'testapp2.html',{'object_list':object_list})
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Point = models.IntegerField()
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```html
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<table border = '1'>
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<tr>
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<th>クラス</th>
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<th>担任</th>
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<th>出席番号</th>
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<th>性別</th>
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<th>名前</th>
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<th>点数</th>
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</tr>
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{% for Object in object_list %}
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<tr>
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<td>{{Object.BelongClass.ClassNumber}}</td>
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<td>{{Object.BelongClass.HomeroomTeacher}}</td>
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<td>{{Object.Number}}</td>
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<td>{{Object.get_ForM_display}}</td>
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<td>{{Object.Name}}</td>
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<td>{{Object.Point}}</td>
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</tr>
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{% endfor %}
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</table>
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#===================================================================
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def tabletest(request):
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object_list = MenberModel.objects.order_by('BelongClass','Number')
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object_list2 = ClassModel.objects.all
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return render(request, 'testapp2.html',{'object_list':object_list})
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```
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{% endfor %}
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</table>
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