Fields can be inserted at a specific index or before/after another field (or collection) by name.
$collection->insertAtIndex( 1, new FormField( 'text', 'my-second-text-field' );
$collection->insertAfter( 'my-text-field', new FormField( 'text', 'my-second-text-field' ) );
$collection->insertBefore( 'my-text-field', new FormField( 'text', 'my-second-text-field' ) );Existing fields can be moved before/after another field (or collection) by name.
$collection->move( 'my-second-text-field' )->after( 'my-text-field' );
$collection->move( 'my-second-text-field' )->before( 'my-text-field' );Existing fields (or collections) can be removed by name.
$collection->remove( 'my-second-text-field' );
$collection->remove( 'my-nested-collection' );A field collection can be walked with a provided callback for each field in the collection.
$collection->walk( function( Node $field ) {
if( 'my-text-field' === $field->getName() ) {
// ...
}
});