在 Django 中使用 Raw SQL

Question

我最近从 PHP 迁移到了 django。我正在创建一个在 django 上运行的项目。我习惯在 php 中编写自定义 sql，因此我想使用 raw() 在 django 中从我的数据库中过滤结果。

但是我无法完全理解 django 的工作原理..

请在下面找到我的代码。

目前我收到下面提到的输出

[('11677795635',), ('12345',)]

我想使用一些 for 循环并以下面提到的格式打印结果。

11677795635

12345

你能帮我看看如何在 django 中进行 for 循环 ..

在PHP,

也可以做到这一点

$query=mysql_query("SELECT  abcdashboard_customerinfo.customerbuyingid FROM abcdashboard_customerinfo WHERE abcdashboard_customerinfo.customerbuyingid in (select DISTINCT abcdashboard_orders.customerid from abcdashboard_orders)");
$queryrun=mysql_num_rows($query);    
for ($f=0; $f <$queryrun; $f++)
    { 
       ${'customer'.$f}=mysql_result($query,$f, 'customerbuyingid');
       echo ${'customer'.$f};
     }

models.py

class customerinfo(models.Model):
    customerbuyingid = models.CharField(max_length=300, default='invalid customer id in database')
    customername = models.CharField(max_length=300, default='invalid customer name in database')
    customerphonenumber = models.CharField(max_length=12, default='0000000000')
    customermailid= models.CharField(max_length=80, default='email@email.com')

class orders(models.Model):
    orderid = models.CharField(max_length=200)
    orderstatus = models.CharField(max_length=10)
    externalpurchaseid = models.CharField(max_length=100)
    externalstatus = models.CharField(max_length=100)
    customerid = models.CharField(max_length=100)
    ops = models.CharField(max_length=100)
    orderdate = models.DateField()
    updatedon = models.DateTimeField(default=timezone.now)

views.py

def index(request):
    all_customer = customerinfo.objects.all()
    cursor = connection.cursor()
    cursor.execute('''SELECT abcdashboard_customerinfo.customerbuyingid FROM abcdashboard_customerinfo WHERE abcdashboard_customerinfo.customerbuyingid in (select DISTINCT abcdashboard_orders.customerid from abcdashboard_orders) ''')
    row = cursor.fetchall()
    print (row)  
    context = {"row": row}
    return render(request, "abcdashboard/index.html", context)

Index.html

<html>
<head>
    <title>

    </title>

</head>

<body>
    <ul>
<h2 align="center"> SQL Queries display </align> </h2>

{% block content %}

{{ row }}

{% endblock %}
    </ul>

</body>

</html>

Answer 1

只需替换：

在views.py中：

row = cursor.fetchall()
print (row)  
context = {"row": row}

与：

ids = []
for row in cursor.fetchall():
    id = row[0]
    ids.append(id)
context = {'rows': ids}
...

在index.html中：

{{ row }}

与

{% for id in rows %}
{{ id }}
{% endfor %}

在 Django 中使用 Raw SQL

USE Raw SQL in Django

php

python

django

django-views

django-database