问题
This is my models.py file.
class CustomerInfo(models.Model):
customer_name=models.CharField('Customer Name', max_length=50)
customer_mobile_no = models.CharField('Mobile No', null=True, blank=True,max_length=12)
customer_price=models.IntegerField('Customer Price')
customer_product_warrenty = models.CharField('Product Warrenty',null=True, blank=True,max_length=10)
customer_sell_date = models.DateTimeField('date-published', auto_now=True)
customer_product_id=models.CharField('Product ID',max_length=150,null=True, blank=True)
customer_product_name=models.CharField('Product Name', max_length=50)
customer_product_quantity=models.IntegerField('Quantity',default=1)
def __str__(self):
return self.customer_name
Now I want to search in muliple fieds like as customer_name, customer_mobile_no,customer_product_id
etc. So I created views.py file
def customerPage(request):
customers = CustomerInfo.objects.all()
if request.method =="GET":
customerid = request.GET['customer_id']
try:
customers = CustomerInfo.objects.get(pk=customerid)
cus_name = CustomerInfo.objects.filter(customer_name__contains=customerid)
mobile_number = CustomerInfo.objects.filter(customer_mobile_no__contains=customerid)
return render(request, 'shop/customer.html', {"cus_name": cus_name,"mobile_number": mobile_number, "customers": 'customers', "site_name": "Moon Telecom"})
except:
return render(request, 'shop/customer.html', {"error": "Not found any info"})
return render(request, 'shop/customer.html', {'customers': customers})
and this is my html file
{% extends "shop/base.html" %}
{% block content_area %}
<div class="col-lg-4">
<div class="customer_search" >
<form action="{% url "shop:customerPage" %}" method="GET">
{% csrf_token %}
<div class="form-group">
<label for="customer_id">Id:</label>
<input type="text" class="form-control" id="customer_id" placeholder="Enter customer ID" name="customer_id">
</div>
<button type="submit" class="btn btn-default">Submit</button>
</form>
</div>
</div>
<div class="col-lg-8 customers_info">
{% if error %}
<div class="alert alert-danger">
<strong>{{error}}</strong>
</div>
{% endif %}
{% if cus_name %}
{% for x in cus_name %}
<p>{{x.customer_name}}</p>
{% endfor %}
{% else %}
<p>nothing foung</p>
{% endif %}
{% if customers %}
<table class="table">
<thead>
<tr>
<th>Name</th>
<th>Mobile No</th>
<th>Product Name</th>
<th>Price</th>
<th>Date</th>
<th>Product ID</th>
<th>Warrenty</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="/shop/{{customers.id}}/customerprofile">{{customers.customer_name}}</a></td>
<td>{{customers.customer_mobile_no}}</td>
<td>{{customers.customer_product_name}}</td>
<td>{{customers.customer_price}} TK</td>
<td>{{customers.customer_sell_date}}</td>
<td>{{customers.customer_product_id}}</td>
<td>{% if customers.customer_product_warrenty == '' %}
<b>No Warrenty</b>
{% else %}
<b>{{customers.customer_product_warrenty}}</b> Month
{% endif %}
</td>
</tr>
</tbody>
</table>
{% else %}
<p>nothing found</p>
{% endif %}
</div>
{% endblock %}
I got results If I use POST method and customers = CustomerInfo.objects.get(pk=customerid)
When I searched one field, I have got my results but When I start multiple search query from the database. I cant get any info. I want to search multiple fields within CustomerInfo
model. Also, I was trying others mehtod but not working.
回答1:
You need to search using multiple fields in one query. And looking at your code, i presume that the conditions are joined using OR
.
This problem can be solved using django ORM's Q object
What it allows you do is to chain multiple filtering conditions together and connect them logically.
So, if you have 3 conditions and they are logically connected as :
Condition 1 OR Condition 2 AND Condition 3
using Q
you can write them as :
Q(Condition1)
| Q(Conditon2)
& Q(Condition2)
.
In your case the 3 different searches of filterings can be performed as:
filtered_customers = CustomerInfo.objects.filter( Q(pk = int(customerid)) | Q(customer_name__contains = str(customerid)) | Q(customer_mobile_no__contains = str(customerid)))
来源:https://stackoverflow.com/questions/46656210/django-search-query-within-multiple-fields-in-same-data-table