AbstractCollection

What it does

This abstract collection class serves as a base for Magento 2 catalog collections, providing backward compatibility between EAV (Entity-Attribute-Value) and flat table structures.

Developers extend this class when creating custom product or category collections, allowing them to use familiar EAV-style methods like addAttributeToSelect, addAttributeToFilter, and addAttributeToSort even when working with flat tables.

It also implements SearchCriteriaInterface for API-based collection operations.

Public Methods

• setSelectCountSql()
• getSelectCountSql()
• addAttributeToSelect()
• addAttributeToFilter()
• addAttributeToSort()
• setPage()
• getAllIds()
• getSearchCriteria()
• setSearchCriteria()
• getTotalCount()
• setTotalCount()
• setItems()