python - django 在模板中实现过滤器

Question

我正在构建一个界面(类似于 phpmyadmin)，但对用户更友好...我已经导入了所有表格，但现在我想在每个表格上添加排序、筛选和搜索。

这是我的表/views.py

def table_base(request):
    table_name = Crawledtables._meta.db_table
    list_tables = Crawledtables.objects.order_by('id')
    return render(request, 'tables/table_base.html', {'table_name': table_name,
                                                      'list_tables': list_tables})


class AboutDetail(DetailView):
    model = Crawledtables
    pk_url_kwarg = 'table_id'
    template_name = 'tables/table_list.html'

    def __init__(self, **kwargs):
        super(AboutDetail, self).__init__(**kwargs)

    def get_object(self):
        if 'table_id' not in self.kwargs:
            return Crawledtables.objects.get(id=1)
        else:
            return Crawledtables.objects.get(id=self.kwargs['table_id'])


def addview(request, table_id):
    table_name = Crawledtables.objects.get(id=table_id)

    tbl_details = "SELECT * FROM " + table_name.name
    tbl_detail = AllTables.objects.raw(tbl_details)

    paginator = Paginator(list(tbl_detail), 100)
    page = request.GET.get('page')

    try:
        details = paginator.page(page)
    except PageNotAnInteger:
        details = paginator.page(1)
    except EmptyPage:
        details = paginator.page(paginator.num_pages)

    crawled_tables = AllTablesFilter(request.GET, queryset=tbl_detail)
    return render(request, 'tables/table_list.html', {'tbl_name': table_name,
                                                      'details': tbl_detail,
                                                      'filter': crawled_tables,
                                                      'detail_page': details})


def GeneralSearch(request):
    table_list = Crawledtables.objects.all()
    crawled_tables = GeneralFilter(request.GET, queryset=table_list)
    return render(request, 'tables/table_search.html', {'filter': crawled_tables})


def AllTablesSearch(request, table_id):
    table_name = Crawledtables.objects.get(id=table_id)

    tbl_details = "SELECT * FROM " + table_name.name

    table_list = AllTables.objects.raw(tbl_details)
    # table_list = Crawledtables.objects.all()
    crawled_tables = AllTablesFilter(request.GET, queryset=table_list)
    return render(request, 'tables/alltables_search.html', {'tbl_name': table_name,
                                                            'filter': crawled_tables})

这是我的表/filter.py

class GeneralFilter(django_filters.FilterSet):
    class Meta:
        model = Crawledtables
        fields = ['name', 'date']


class AllTablesFilter(django_filters.FilterSet):
    class Meta:
        model = AllTables
        fields = ['id','title', 'url','description']

和我的 table_list.html

{% extends 'base.html' %}
{% block content %}
    {% load app_filter %}

<br>

    <h1> {{tbl_name|split:"_"}} {{ tbl_name.date|split:"-" }} Data</h1>
<table class="table table-bordered">
    <thead>
    <tr>
        <th>Id</th>
        <th>Title</th>
        <th>Url</th>
        <th>Descriptions</th>
    </tr>
    </thead>
        {% for lists in details %}
            <tr>
                <td>{{ lists.id }}</td>
                <td>{{ lists.title }}</td>
                <td><a href="{{ lists.url }}" target="_blank">{{ lists.url }}</a></td>
                <td>{{ lists.description }}</td>
            </tr>
    {% endfor %}
</table>

{% if detail_page.has_other_pages %}
  <ul class="pagination">
    {% if detail_page.has_previous %}
      <li><a href="?page={{ detail_page.previous_page_number }}">&laquo;</a></li>
    {% else %}
      <li class="disabled"><span>&laquo;</span></li>
    {% endif %}
    {% for i in detail_page.paginator.page_range %}
      {% if detail_page.number == i %}
        <li class="active"><span>{{ i }} <span class="sr-only">(current)</span></span></li>
      {% else %}
        <li><a href="?page={{ i }}">{{ i }}</a></li>
      {% endif %}
    {% endfor %}
    {% if detail_page.has_next %}
      <li><a href="?page={{ detail_page.next_page_number }}">&raquo;</a></li>
    {% else %}
      <li class="disabled"><span>&raquo;</span></li>
    {% endif %}
  </ul>
{% endif %}


{% endblock %}

我想在此模板中进行排序、过滤和搜索，这对我拥有的所有表格都是动态的。 (所有表的结构相同)

我确实创建了一个单独的搜索模板...但这只是为了测试

提前感谢您的帮助

Answer 1

实际上你需要在获取对象后在 View 中编写过滤器、搜索和排序然后你需要传入模板。

当然，所有这些search、sort 和filters 都有内置函数，但您需要在 View 中处理它们。

django 模板标签

还有用于其他用途的模板标签。你可以上Django Bultin Template Tags看看.