如果我有两个产品集合是有办法将它们合并成一个?
if i have two product collections is there a way to merge them into one?
例如(我最终的目的不是只是得到一个集合2 cats,这只是为了说明问题):
for example (my final intent isn't to actually just get a collection of 2 cats, this is just to illustrate the issue):
$collection1 = Mage::getModel('catalog/category')->load(148)->getProductCollection(); $collection2 = Mage::getModel('catalog/category')->load(149)->getProductCollection(); $merged_collection = merge_collections($collection1,$collection2);任何帮助将不胜感激。
推荐答案假设您希望组合在一起的项目属于相同类型并且存在于数据库中,那么您可以这样做:
Assuming the items you wish to group together are of the same type and exist in the database then you can do this:
$collection1 = Mage::getModel('catalog/category')->load(148)->getProductCollection(); $collection2 = Mage::getModel('catalog/category')->load(149)->getProductCollection(); $merged_ids = array_merge($collection1->getAllIds(), $collection2->getAllIds()); // can sometimes use "getLoadedIds()" as well $merged_collection = Mage::getResourceModel('catalog/product_collection') ->addFieldToFilter('entity_id', array('in' => $merged_ids)) ->addAttributeToSelect('*');这里我知道要过滤 entity_id 即产品的关键字段,就像它是对大多数实体类型,一些平面表有不同的主键。通常你可以使用集合的 getIdFieldName()方法推广它。在这种情况下,产品是一个坏的例子,因为它的ID字段名称没有正确填写。
Here I know to filter by entity_id because that is products' key field, like it is for most entity types, some flat tables have a different primary key. Often you can generalise that with one of the collection's getIdFieldName() method. Products are a bad example in this case because it's ID field name isn't filled out correctly.
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Magento:如何将两个产品集合合并成一个?
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