[英]Inner Join and filter by date not working throws Integrity constraint violation error - Magento 1
I am trying to make an inner join on two tables to get data. 我试图对两个表进行内部联接以获取数据。 and it worked however when I search to get date from the table. 但是当我搜索从表中获取日期时它起作用了。 I get an error saying 我说错了
Integrity constraint violation: 1052 Column 'created_at' in where clause
is ambiguous, query was: SELECT COUNT(*) FROM `sales_flat_order` AS
`main_table`
INNER JOIN `sales_flat_order_item` ON main_table.store_id =
sales_flat_order_item.store_id WHERE (`created_at` >= '2017-04-01'
This is my code 这是我的代码
$collection = Mage::getModel('sales/order')->getCollection();
$collection->addFieldToFilter('created_at');
$collection->getSelect()->join("sales_flat_order_item",
"main_table.store_id = sales_flat_order_item.store_id",
array('name','sku','order_id','quantity'));
You can try something like this 您可以尝试这样的事情
$collection = Mage::getModel('sales/order')->getCollection();
$collection->addFieldToFilter('main_table.created_at', '2017-04-01');
$collection->getSelect()->join("sales_flat_order_item",
"main_table.store_id = sales_flat_order_item.store_id",
array('name','sku','order_id','qty_ordered'));
But your join looks weird maybe it would be better to use sales_flat_order.entity_id = sales_flat_order_item.order_id then store_id 但是您的联接看起来很奇怪,也许最好使用sales_flat_order.entity_id = sales_flat_order_item.order_id然后使用store_id
What exactly do you try to get by that select? 您到底要从中获得什么呢?
Please, describe your task. 请描述您的任务。
Solved it. 解决了。
$startDate = date("Y-m-d 00:00:00", strtotime( date( "Y-m-d 00:00:00",
strtotime( date("Y-m-d 00:00:00") ) ) . "-10 months" ) );
$endDate = date("Y-m-d 00:00:00", strtotime( date( "Y-m-d 00:00:00",
strtotime( date("Y-m-d 00:00:00") ) ) . "+1 day" ) );
$collection = Mage::getResourceModel('sales/order_item_collection')->addFieldToFilter('created_at', array('from' => $startDate, 'to' => $endDate)->addAttributeToSelect('*');
$this->setCollection($collection);
return parent::_prepareCollection();
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