我想做以下几件事:
public function checkResult($table, $appends)
{
$append = null;
foreach ($appends as $key => $val)
$append = " AND `{$key}` = '{$val}'";
$result = $this->fetchObj("
SELECT *
FROM :cms_table
WHERE id :append
我正在尝试将django CMS应用程序部署到PythonAnywhere或Heroku,但是我一直在Heroku上得到这个错误:
ProgrammingError at /
relation "cms_urlconfrevision" does not exist
LINE 1: ...sion"."id", "cms_urlconfrevision"."revision" FROM "cms_urlco...
而PythonAnywhere上的错误是:
OperationalError at /
no such
我是新来的数据库设计的。对于cms的产品属性数据库设计,有什么更好的选择?(也请提出其他选项)。
选项1: 1表
products{
id
product_name
color
price
attribute_name1
attribute_value1
attribute_name2
attribute_value2
attribute_name3
attribute_value3
}
选项2: 3个表
products{
id
product_name
color
price
}
attribute{
id
name
value
}
products_attribute{
produc