Django管理员性能问题 [英] Django admin performance issue

问题描述

当我尝试在Django管理界面中打开一个模型时，我会收到上千个这些查询，并导致严重的性能问题。

I'm getting thousands of these queries when I try to open up a model in the Django admin interface and it's leading to a serious performance issue.

[sql] SELECT ... FROM `auth_user` WHERE `auth_user`.`id` = 9535
[sql] (21ms) Found 1 matching rows
[sql] SELECT ... FROM `auth_user` WHERE `auth_user`.`id` = 9536
[sql] (20ms) Found 1 matching rows

任何Django管理员没有使用select_related（）的想法？

Any ideas why Django admin isn't using select_related()?

这是（我认为）模型的相关部分（我在管理员中查看学生模型的一个实例）：

Here are (I think) the relevant parts of the model (I'm looking at an instance of the Student model in the admin):

from django.contrib.auth.models import User

class Student(models.Model):
    user = models.OneToOneField(User, unique=True)
    mhtl_user = models.OneToOneField(MHTLUser, unique=True)
    def __str__(self):
        return u"%s %s" % (self.user.first_name, self.user.last_name)

class MHTLUser(models.Model):
    user = models.OneToOneField(User, unique=True)
    def __str__(self):
        return str(self.user)

推荐答案

或者只需启用 list_select_related 。

class MyModelAdmin(admin.ModelAdmin):
    list_select_related = True
    # ....

这篇关于Django管理员性能问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！