src/GridFieldOrderableRows.php
public function validateSortField(SS_List $list)
    {
        $field = $this->getSortField();

        // Check extra fields on many many relation types
        if ($list instanceof ManyManyList) {
            $extra = $list->getExtraFields();

            if ($extra && array_key_exists($field, $extra)) {
                return;
            }
        } elseif ($list instanceof ManyManyThroughList) {
            $manipulator = $this->getManyManyInspector($list);
            $fieldTable = DataObject::getSchema()->tableForField($manipulator->getJoinClass(), $field);
            if ($fieldTable) {
                return;
            }
        }

        $classes = ClassInfo::dataClassesFor($list->dataClass());

        foreach ($classes as $class) {
            if (singleton($class)->hasDataBaseField($field)) {
                return;
            }
        }

        throw new Exception("Couldn't find the sort field '" . $field . "'");
    }
public function validateSortField(SS_List $list)
    {
        $field = $this->getSortField();

        // Check extra fields on many many relation types
        if ($list instanceof ManyManyList) {
            $extra = $list->getExtraFields();

            if ($extra && array_key_exists($field, $extra)) {
                return;
            }
        } elseif ($list instanceof ManyManyThroughList) {
            $manipulator = $this->getManyManyInspector($list);
            $fieldTable = DataObject::getSchema()->tableForField($manipulator->getJoinClass(), $field);
            if ($fieldTable) {
                return;
            }
        }

        $classes = ClassInfo::dataClassesFor($list->dataClass());

        foreach ($classes as $class) {
            if (singleton($class)->hasDataBaseField($field)) {
                return;
            }
        }

        throw new Exception("Couldn't find the sort field '" . $field . "'");
    }
public function validateSortField ( SS_List $ list ) { $ field = $ this -> getSortField ( ) ; // Check extra fields on many many relation types if ( $ list instanceof ManyManyList ) { $ extra = $ list -> getExtraFields ( ) ; if ( $ extra && array_key_exists ( $ field , $ extra ) ) { return ; } } elseif ( $ list instanceof ManyManyThroughList ) { $ manipulator = $ this -> getManyManyInspector ( $ list ) ; $ fieldTable = DataObject :: getSchema ( ) -> tableForField ( $ manipulator -> getJoinClass ( ) , $ field ) ; if ( $ fieldTable ) { return ; } } $ classes = ClassInfo :: dataClassesFor ( $ list -> dataClass ( ) ) ; foreach ( $ classes as $ class ) { if ( singleton ( $ class ) -> hasDataBaseField ( $ field ) ) { return ; } } throw new Exception ( "Couldn't find the sort field '" . $ field . "'" ) ; }
Validates sortable list

@param SS_List $list
@throws Exception
Validates sortable list