Django-Filter表单输出错误不起作用答案

【问题标题】：Django-Filter Form Output Error Not workingDjango-Filter表单输出错误不起作用
【发布时间】：2021-03-05 13:16:36
【问题描述】：

我正在尝试显示搜索栏，搜索时将显示表单的条目。

但是它没有发生。我正在使用 Django Filters 过滤表单，以便最终客户能够搜索查询并找到所需的详细信息。

我将整个代码粘贴在下面，如果您认为有比这更好的方法来完成工作，请告诉我。

如果您想尝试查看错误，我也会分享 Github 存储库的链接。

长期以来，我一直被这个错误困扰。非常需要帮助！！！！！！

filters.py

import django_filters
from .models import *
from inventory_app.models import Form1


class ItemFilter(django_filters.FilterSet):
    item = django_filters.CharFilter(field_name='item', lookup_expr='icontains')

    class Meta:
        model = Form1
        fields = ['item']

models.py

from django.db import models
#from django.utils import timezone
# Create your models here.
class Form1(models.Model):
    item = models.CharField(max_length=125)
    quantity = models.IntegerField(default=0)
    vendor = models.CharField(max_length=125)
    inward = models.IntegerField(default=1234)
    date = models.DateField()
    def __str__(self):
      return self.item
  #  security_stamp_date = models.DateField(default=timezone.now)

Form1_entries.html

{% extends 'base.html' %}

{% block title %} Form 1 Entries  {% endblock  %}
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous"> 
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js" integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js" integrity="sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy" crossorigin="anonymous"></script>
{% block body %} 
<div>
<form method="GET" class="form-inline my-2 my-lg-0">
  <input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search">
  {{myFilter.Form}}
  <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
</form>
</div>


{% for entry in entries %}
    <table class="table table-bordered">
      {{ entry.item }}     
      {{ entry.quantity }}
      {{ entry.vendor }}
      {{ entry.inward }}
      {{ entry.date }}
    </table>



{% endfor %}

<div class="container">
    <div class="row p-5">
            <a href="/export/" class="btn btn-outline-primary" role="button">Download the CSV file</a>
    </div>
</div>
{% endblock %}

GITHUB 存储库：

https://github.com/samatharkar/altiostar

【问题讨论】：

标签： python python-3.x django django-models django-forms

【解决方案1】：

>>> from django.db.models import Q
>>> queryset = User.objects.filter(
    Q(first_name__startswith='R') | Q(last_name__startswith='D')
)
>>> queryset
<QuerySet [<User: Ricky>, <User: Ritesh>, <User: Radha>, <User: Raghu>, <User: rishab>]>

【讨论】：

你能告诉我我需要如何以及在哪里把它放在代码中吗？
它只是一个示例如何使用 Q 函数进行搜索