Model
Filter
Magento\Customer\Model\Indexer\Attribute\Filter
What it does
This class filters customer attributes based on whether they exist in the customer grid index table.
When the customer grid indexer is invalid, it validates that requested attributes actually exist as columns in the flat customer grid table before allowing operations to proceed.
Developers use this to prevent errors when working with customer attributes that may not be indexed yet.
Public Methods
- filter()