Add product test.

includes/widgets/search-widget/class-search-widget.php

@@ -1091,7 +1091,7 @@ public function gf_query_filter( &$query, $view, $request ) {
 
 					if ( $this->is_product_field( $filter ) ) {
 						$original_left = clone $left;
-						$column        = $left instanceof GF_Query_Call ? reset( $left->columns ) : $left;
+						$column        = $left instanceof GF_Query_Call ? $left->columns[0] ?? null : $left;
 						$column_name   = sprintf( '`%s`.`%s`', $column->alias, $column->is_entry_column() ? $column->field_id : 'meta_value' );
 
 						// Add the original join back.

tests/unit-tests/GravityView_Widget_Search_Test.php

@@ -1813,9 +1813,8 @@ public function test_search_with_number_field() {
 					wp_generate_password( 4, false ) => array(
 						'id'            => 'search_bar',
 						'search_fields' => json_encode( array(
-								array(
-									'field' => '9',
-								),
+								array( 'field' => '9' ),
+								array( 'field' => '26' ),
 							)
 						),
 					),
@@ -1824,12 +1823,14 @@ public function test_search_with_number_field() {
 		) );
 
 		$view = \GV\View::from_post( $post );
+		$currency_symbol = rgar( RGCurrency::get_currency( GFCommon::get_currency() ), 'symbol_left' );
 
 		foreach ( array( 1, 5, 7, 10, '-20.23' ) as $number ) {
 			$this->factory->entry->create_and_get( array(
 				'form_id' => $form['id'],
 				'status'  => 'active',
 				'9'       => $number,
+				'26'      => 'product name|' . $currency_symbol . $number,
 			) );
 		}
 
@@ -1859,6 +1860,7 @@ public function test_search_with_number_field() {
 
 		remove_all_filters('gravityview_search_operator');
 
+		// Number field
 		$_GET = [ 'filter_9' => [ 'min' => -21, 'max' => 9 ], 'mode' => 'all' ];
 		$this->assertEquals( 4, $view->get_entries()->count() );
 
@@ -1868,6 +1870,13 @@ public function test_search_with_number_field() {
 		$entries = $view->get_entries()->all();
 		$this->assertSame( [ '7', '5' ], [ $entries[0]->as_entry()[9], $entries[1]->as_entry()[9] ] );
 
+		// Product field.
+		$_GET = [ 'filter_26' => [ 'min' => -21, 'max' => 6.50 ], 'mode' => 'all' ];
+		$this->assertEquals( 3, $view->get_entries()->count() );
+
+		$_GET = [ 'filter_26' => [ 'min' => -20, 'max' => 7 ], 'mode' => 'all' ];
+		$this->assertEquals( 3, $view->get_entries()->count() );
+
 		$_GET = array();
 	}
 }