Question

我最近从PHP迁移到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（）来过滤django中我的数据库中的结果。

然而，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

你可以帮我解决如何在django中循环播放..

在PHP中，

是可能的

$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)

的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}

使用：

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

index.html中的

：

{{ row }}

与

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

在Django中使用Raw SQL

1 个答案: