Django ORM 搜索多条件查询

Question

当我想用多个条件搜索我的查询集时遇到问题。在我的数据库中，hscode 保存为 "0105.14.90"。我需要按照此查询 "01051490" 搜索 hscode。例如：

>>> query = '0105.14.90'
>>> HSCode.objects.filter(hscode=query)
<QuerySet [<HSCode: 0105.14.90>]>


>>> query = '01051490'
>>> HSCode.objects.filter(hscode=query)
<QuerySet []>

我认为最糟糕的是，看起来像这样：

hscodes = []
query = '01051490'

for hscode in HSCode.objects.order_by('-id'):
    if query.isdigit() and hscode.hscode == query:
        hscodes.append(hscode)

    elif hscode.hscode.replace('.', '') == query:
        hscodes.append(hscode)

只用ORM如何处理？

>>> query = '01051490'
>>> HSCode.objects.filter(Q(hscode=query) | Q(???))
<QuerySet [<HSCode: 0105.14.90>]>

Answer 1

你可以试试Replace。

from django.db.models import Value
from django.db.models.functions import Replace

query = '01051490'
HSCode.objects.annotate(
    hscode_without_dots=Replace('hscode', Value('.'), Value(''))
).filter(hscode_without_dots=query)

Django ORM 搜索多条件查询

Django ORM Search Multiple Conditional Query

django

django-orm