如何遍历Django模板中的列表? [英] How to iterate over a list in django templates?
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问题描述
我正在将4个长度相同且长度相同的列表传递给模板.如何遍历列表?
I'm passing 4 lists of the same length and the length of the lists to my template. How do I iterate over the lists?
views.py
def allbooks(request):
ID = [1,2]
bookName = ["Python", "Java"]
author = ["idk", "who"]
copies = [3,7]
return render(request, 'allbooks.html',{'ID':ID,'bookName':bookName, 'author':author, 'copies':copies,'range':range(len(ID))})
allbooks.html
allbooks.html
{% extends 'base.html' %}
{% block content %}
{% if user.is_authenticated %}
<div>
<h3>
List of books:
</h3>
<table class="table">
<thead>
<tr>
<th>ID</th>
<th>Book Name</th>
<th>Author</th>
<th>Number of copies</th>
</tr>
</thead>
<tbody>
{% for x in range %}
<tr>
<td>{{id[x]}}</td>
<td>{{bookName[x]}}</td>
<td>{{author[x]}}</td>
<td>{{copies[x]}}</td>
</tr>
{% endfor %}
</tbody>
</table>
</div>
{% else %}
<h3>You must login to continue.</h3>
{% endif %}
{% endblock %}
我尝试用{%forloop.counter0%}替换变量x,但无济于事.我该如何解决?
I've tried replacing the variable x with {% forloop.counter0 %} but to no avail. How can I fix this?
推荐答案
将所有列表压缩为一个元组列表:
Zip all your lists to one list of tuples:
books= zip(ID, bookName, author, copies)
return render(request, 'allbooks.html',{ "books": books} )
比在以下模板中循环浏览
Than loop over it in templates like:
{% for book in books %}
<tr>
<td>{{ book.0 }}</td>
<td>{{ book.1 }}</td>
<td>{{ book.2 }} </td>
<td>{{ book.3 }}</td>
</tr>
{% endfor %}
我建议为您的图书信息提供更好的结构:
I suggest a better structure for your book info:
books = [
{ "id":1, "name": "Python", "author":"idk", "copies": 1},
{ "id":2, "name": "Java", "author":"idk2", "copies": 3}
]
而不是遍历它:
{% for book in books %}
<tr>
<td>{{ book.id }}</td>
<td>{{ book.name }}</td>
<td>{{ book.author }} </td>
<td>{{ book.copies }}</td>
</tr>
{% endfor %}
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