django template 中使用drf中的serializer、Pagination、Filter

1. 使用serializer

在django template中，可以通过调用drf中的serializer来渲染数据。首先，需要在view中定义好serializer，并将查询到的数据序列化后传递给模板。例如：

from rest_framework import serializers

class BookSerializer(serializers.ModelSerializer):
    class Meta:
        model = Book
        fields = ['id', 'title', 'author', 'publish_date']

def book_list(request):
    books = Book.objects.all()
    serializer = BookSerializer(books, many=True)
    return render(request, 'book_list.html', {'books': serializer.data})

然后，在模板中使用django的模板语言展示序列化后的数据：

{% for book in books %}
  <div>
    <h3>{{ book.title }}</h3>
    <p>{{ book.author }}</p>
    <p>{{ book.publish_date }}</p>
  </div>
{% endfor %}

2. 使用Pagination

如果需要在django template中使用drf中的分页功能，可以通过调用Pagination类来实现。首先，需要在view中定义好pagination，并将查询到的数据和pagination对象传递给模板。例如：

from rest_framework.pagination import PageNumberPagination

class BookPagination(PageNumberPagination):
    page_size = 10
    page_size_query_param = 'page_size'
    max_page_size = 100

def book_list(request):
    books = Book.objects.all()
    pagination = BookPagination()
    result_page = pagination.paginate_queryset(books, request)
    serializer = BookSerializer(result_page, many=True)
    return render(request, 'book_list.html', {'books': serializer.data, 'paginator': pagination})

然后，在模板中使用django的模板语言展示分页后的数据：

{% for book in books %}
  <div>
    <h3>{{ book.title }}</h3>
    <p>{{ book.author }}</p>
    <p>{{ book.publish_date }}</p>
  </div>
{% endfor %}

<div class="pagination">
  <span class="step-links">
    {% if page_obj.has_previous %}
      <a href="?page=1">&laquo; first</a>
      <a href="?page={{ page_obj.previous_page_number }}">previous</a>
    {% endif %}

    <span class="current-page">
      Page {{ page_obj.number }} of {{ paginator.num_pages }}
    </span>

    {% if page_obj.has_next %}
      <a href="?page={{ page_obj.next_page_number }}">next</a>
      <a href="?page={{ paginator.num_pages }}">last &raquo;</a>
    {% endif %}
  </span>
</div>

3. 使用Filter

如果需要在django template中使用drf中的过滤功能，可以通过调用FilterSet类来实现。首先，需要在view中定义好filter，并将查询到的数据和filter对象传递给模板。例如：

from django_filters import rest_framework as filters

class BookFilter(filters.FilterSet):
    title = filters.CharFilter(lookup_expr='icontains')
    author = filters.CharFilter(lookup_expr='icontains')

    class Meta:
        model = Book
        fields = ['title', 'author']

def book_list(request):
    books = Book.objects.all()
    book_filter = BookFilter(request.GET, queryset=books)
    serializer = BookSerializer(book_filter.qs, many=True)
    return render(request, 'book_list.html', {'books': serializer.data, 'filter': book_filter})

然后，在模板中使用django的模板语言展示过滤后的数据：

<form method="get">
  <label for="title">Title:</label>
  <input type="text" id="title" name="title" value="{{ filter.form.title.value }}">

  <label for="author">Author:</label>
  <input type="text" id="author" name="author" value="{{ filter.form.author.value }}">

  <button type="submit">Filter</button>
</form>

{% for book in books %}
  <div>
    <h3>{{ book.title }}</h3>
    <p>{{ book.author }}</p>
    <p>{{ book.publish_date }}</p>
  </div>
{% endfor %}