过滤 Magento 集合但不过滤产品,使用不同的

2021-12-19 00:00:00 sql filter collections php magento

在我的 magento 商店中,我试图从数据库表中检索 youtube 视频列表,但有些视频是重复的.

In my magento store I am trying to retrieve a list of youtube videos from a DB table, some videos are duplicated.

我希望通过使用不同的视频值"来过滤视频,但无法找到有关使用 addFieldToFilter() 使用不同的任何信息

I'm looking to filter videos by using distinct video "value" but can't seam to find any information about using distinct with addFieldToFilter()

// get video collection

$collection = Mage::getModel('video/video')->getCollection();
$collection->addFieldToFilter('provider', 'youtube');

// filter by video value

$collection->addFieldToFilter('value')->distinct(true);

通过删除 $collection->addFieldToFilter('value')->distinct(true); 它可以工作,但会检索所有视频.

By removing $collection->addFieldToFilter('value')->distinct(true); it works, but retrieves all the videos.

推荐答案

你可以试试这个:

$collection->getSelect()->distinct(true);

但这将根据 id 检索不同的值.如果要使用不同的视频值检索视频,则应按值"分组.

But this will retrieve distinct values based on id. If you want to retrieve videos using distinct video values, you should group by "value".

$collection->getSelect()->group('value');

如果要调试执行的查询:

If you want to debug the query executed :

$collection->getSelect()->__toString();

希望能帮到你

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