如何在 html 模板中显示 nut,date 字段？如何访问html模板中的外键字段？

Question

I have three models in models.py which are Topic,Webpage and AccessRecord.我在models.py中有三个模型，它们是Topic、Webpage和AccessRecord。 class AccessRecord has foreign key relation with class Webpage i wanna use AccessRecord fields nut,date in html template which is used to display class Webpage content how we can access AccessRecord fields in which has a foreign relation with class Webpage ?类 AccessRecord 与类网页有外键关系我想在用于显示类网页内容的 html 模板中使用 AccessRecord 字段 nut,date 我们如何访问与类网页有外来关系的 AccessRecord 字段？

this is my model :这是我的模型：

    class Topic(models.Model):
        top_name = models.CharField(max_length=264,unique=True)

        def __str__(self):
            return self.top_name

    class Webpage(models.Model):
        topic = models.ForeignKey(Topic)
        name = models.CharField(max_length=264,unique=True)
        url = models.URLField(unique=True)

    

        def __str__(self):
            return self.name

    class AccessRecord(models.Model):
        name = models.ForeignKey(Webpage)
        date = models.DateField()
        nut = models.CharField(max_length=56)

        def __str__(self):
            return str(self.date)

this is my view :这是我的观点：

    def index(request):
        webpage_list = Webpage.objects.all()
        web_dict = {"web_records":webpage_list}
        return render(request,'first_app/index.html',web_dict)

this is my template :这是我的模板：

    <body>
    <h1>Hi, welcome to Django Level Two!</h1>
    <h2>Here are your access records:</h2>
    <div class="djangtwo">
      {% if web_records %}
      <table style="float: left">
          <thead>
              <th>Topic Name</th>
              <th>Site name</th>
              <th>Url Accessed</th>
              <th>Date Accessed</th>
              <th>Webpage nut</th>
          </thead>
      {% for web in web_records %}
      <tr>
          <td>{{ web.topic }}</td>
          <td>{{ web.name }}</td>
          <td>{{ web.url }}</td>
          <td>{{ web.nut }}</td>
          <td>{{ web.date }}</td>
     </tr>
     {% endfor %}
    </table>
     {% endif %}
    </div>
    </body>

Answer 1

You can also make views.py like你也可以让 views.py 像

#views.py

def index(request):
    return render(request,'first_app/index.html')

AND modify template like:-并修改模板，如：-

    <body>
<h1>Hi, welcome to Django Level Two!</h1>
<h2>Here are your access records:</h2>
<div class="djangtwo">
  {% if web_records %}
  <table style="float: left">
      <thead>
          <th>Topic Name</th>
          <th>Site name</th>
          <th>Url Accessed</th>
          <th>Date Accessed</th>
          <th>Webpage nut</th>
      </thead>
  <tr>
      <td>{{ user.web.topic }}</td>  #HERE
      <td>{{ user.web.name }}</td>    #HERE
      <td>{{ user.web.url }}</td>    #HERE
      <td>{{ user.web.nut }}</td>    #HERE
      <td>{{ user.web.date }}</td>    #HERE
 </tr>
 {% endfor %}
</table>
 {% endif %}
</div>
</body>

AND IF YOU WANT LOOP,SO YOU CAN EASILY USER LOOP.

Answer 2

You can also try this way:你也可以试试这种方式：

rename the name field to web in AccessRecord model.在AccessRecord模型中将name字段重命名为web 。

models.py模型.py

class AccessRecord(models.Model):
      web = models.ForeignKey(Webpage)
      date = models.DateField()
      nut = models.CharField(max_length=56)

      def __str__(self):
         return str(self.date)

Get all objects of AccessRecord model instead of Webpage model.获取AccessRecord模型的所有对象，而不是Webpage模型。

views.py视图.py

from django.http import HttpResponse
from django.template import loader

def index(request):
    access_records = AccessRecord.objects.all()
    context = { "access_records": access_records }
    t = loader.get_template('first_app/index.html')
    return HttpResponse( t.render( context, request ) )

Loop the access records in your template.循环访问模板中的访问记录。

index.html索引.html

<body>
    <h1>Hi, welcome to Django Level Two!</h1>
    <h2>Here are your access records:</h2>
    <div class="djangtwo">
      {% if access_records %}
      <table style="float: left">
          <thead>
              <th>Topic Name</th>
              <th>Site name</th>
              <th>Url Accessed</th>
              <th>Date Accessed</th>
              <th>Webpage nut</th>
          </thead>
      {% for access_record in access_records %}
      <tr>
          <td>{{ access_record.web.topic }}</td>
          <td>{{ access_record.web.name }}</td>
          <td>{{ access_record.web.url }}</td>
          <td>{{ access_record.nut }}</td>
          <td>{{ access_record.date }}</td>
     </tr>
     {% endfor %}
    </table>
     {% endif %}
    </div>
    </body>

如何在 html 模板中显示 nut,date 字段？如何访问html模板中的外键字段？

问题描述

2 个解决方案

解决方案1
0 2020-11-11 17:07:35

解决方案2
0 2020-11-12 07:37:06

如何在 html 模板中显示 nut,date 字段？ 如何访问html模板中的外键字段？

问题描述

2 个解决方案

解决方案1 0 2020-11-11 17:07:35

解决方案2 0 2020-11-12 07:37:06

如何在 html 模板中显示 nut,date 字段？如何访问html模板中的外键字段？

解决方案1
0 2020-11-11 17:07:35

解决方案2
0 2020-11-12 07:37:06