When dealing with dynamic data sources, especially from databases, some columns may contain sensitive or irrelevant information. For example:

• A user table might contain a password column that should not be displayed.
• A product table may have internal inventory_id or supplier_notes that are unnecessary for users.

To solve this, we can create a middleware that removes specific columns before rendering.

Create a RemoveColumnsMiddleware

The iterateTrsIn() method simplifies iterating through rows, while the getCellCollection() allows us to remove unwanted columns efficiently.

use Ucscode\HtmlComponent\TableGenerator\TableGenerator;
use Ucscode\HtmlComponent\TableGenerator\Abstraction\AbstractMiddleware;
use Ucscode\HtmlComponent\TableGenerator\Component\Section\Tr;
use Ucscode\HtmlComponent\TableGenerator\Contracts\TableSegmentInterface;

class RemoveColumnsMiddleware extends AbstractMiddleware
{
    public function process(Table $table): void
    {
        // Loop through each cell in the table
        $this->iterateCellsIn($table, function (CellInterface $cell, Tr $tr) {

            // Remove cells whose meta "columnName" matches unwanted columns
            if ($cell->getMeta()->get('columnName') === 'password') {
                $tr->getCellCollection()->remove($cell);
            }
        });
    }
}

Use the RemoveColumnsMiddleware on the TableGenerator

// Load data (assuming $adapter fetches user or product data)
$tableGenerator = new TableGenerator($adapter, new RemoveColumnsMiddleware());

// Render the table
echo $tableGenerator->render();

Expected Output

If the original data contained a password column, it will now be removed from the rendered table.

Before Removing Columns

After Applying RemoveColumnsMiddleware