Question

我需要使用Django-filter或Elastic-search来过滤结果。我已经在我的应用程序中安装了两个。我使用过来自不同网站的教程，但结果并不像预期的那样。

我的Model.py：

class Wine(models.Model):
    name = models.CharField(max_length=200)
    release_date = models.DateTimeField(default=datetime.datetime.now)

我的filter.py:

from django import forms
from .models import Manufacturer, Wine
import django_filters

class WineFilter(django_filters.FilterSet):
    release_date = django_filters.NumberFilter(name='release_date', lookup_expr='year')       
    name = django_filters.CharFilter(lookup_expr='icontains')

    class Meta:
        model = Wine
        fields = ['name', 'release_date']

我的view.py：

def search(request):
    wine_list = Wine.objects.all()
    wine_filter = WineFilter(request.GET, queryset=wine_list)
    return render(request, 'reviews/wine_list.html', {'filter': wine_filter})

如果使用弹性搜索：我的search_filters.py

class WineIndex(indexes.SearchIndex, indexes.Indexable):
    text = indexes.CharField(document=True, use_template=True)
    name = indexes.CharField(model_attr='name')
    release_date = indexes.CharField(model_attr='release_date')

    def get_model(self):
        return Wine

    def index_queryset(self, using=None):
        return self.get_model().objects.all()

我的form.py：

from django.forms import ModelForm, Textarea
from haystack.forms import SearchForm

class WineSearchForm(SearchForm):

    def no_query_found(self):
        return self.searchqueryset.all()

通常，要显示葡萄酒列表，我将其放在我的HTML中：

{% for wine in wine_list %}
    <div class="panel panel-default">
        <div class="panel-body"> 
            {{ wine.name }} -  {{ wine.release-date }}
    </div></div>
{% endfor %}

但是，我想用实际wine_list.html左侧的侧面板过滤结果。大部分选择都将通过选择框完成：

<!-- third  Panel start Here -->
<div class="panel panel-default">            
    <h4 class="panel-title">Year Of Manufacture</h4>              
    <div class="list-group">
        {{ filter.form.release_date.label_tag }}
        {% for choice in filter.form.release_date %}
        <label class="checkbox-inline">
            {{ choice.tag }} {{ choice.choice_label }}
        </label>
        {% endfor %}
        <div class="checkbox">
            <label><input type="checkbox" value="">2016</label>
        </div>
        <div class="checkbox">
            <label><input type="checkbox" value="">2015</label>
        </div>
    </div>
</div>

我修改了wine_list.html来渲染结果但不起作用：

{% for wine in filter.qs %}
    <tr>
        <td>{{ wine.name }}</td>
        <td>
        {% for release_date in wine.release_date.all %}
            {{ wine.release_date }}
        {% empty %}
            <em class="text-muted">No release_date</em>
        {% endfor %}
        </td>
    </tr>
{% empty %}
    <tr>
        <td colspan="5">No data</td>
    </tr>
{% endfor %}

通过解决我的错误，它可以解决我的大多数问题，因为我希望为我的模型的几个选择框。

使用django-filter或ElasticSearch过滤

0 个答案: