doctrine / orm

            $targetMetadata = $cmf->getMetadataFor($assoc['targetEntity']);

            if (isset($assoc['id']) && $targetMetadata->containsForeignIdentifier) {

                $ce[] = "Cannot map association '" . $class->name. "#". $fieldName ." as identifier, because " .

                        "the target entity '". $targetMetadata->name . "' also maps an association as identifier.";

            }

            if ($assoc['mappedBy']) {

                if ($targetMetadata->hasField($assoc['mappedBy'])) {

                                $orderField . " that is not a field on the target entity " . $targetMetadata->name . ".";

                        continue;

                    }

                    if ($targetMetadata->isCollectionValuedAssociation($orderField)) {

                        $ce[] = "The association " . $class->name."#".$fieldName." is ordered by a field " .

                                $orderField . " on " . $targetMetadata->name . " that is a collection-valued association.";

                        continue;

                    }

                    if ($targetMetadata->isAssociationInverseSide($orderField)) {

                        $ce[] = "The association " . $class->name."#".$fieldName." is ordered by a field " .

                                $orderField . " on " . $targetMetadata->name . " that is the inverse side of an association.";

                                $orderField . " on " . $targetMetadata->name . " that is a collection-valued association.";

                        continue;

                    }

                    if ($targetMetadata->isAssociationInverseSide($orderField)) {

                        $ce[] = "The association " . $class->name."#".$fieldName." is ordered by a field " .

                                $orderField . " on " . $targetMetadata->name . " that is the inverse side of an association.";

                        continue;

                    }

                }

            }

        }