doctrine/orm · error · BadMethodCallException

Type of association must be one of *_TO_ONE or MANY_TO_MANY

Error message

Type of association must be one of *_TO_ONE or MANY_TO_MANY

What it means

Error "Type of association must be one of *_TO_ONE or MANY_TO_MANY" thrown in doctrine/orm.

Source

Thrown at src/Query/SqlWalker.php:1054

                if ($discrSql) {
                    $conditions[] = $discrSql;
                }

                // Apply the filters
                $filterExpr = $this->generateFilterConditionSQL($targetClass, $targetTableAlias);

                if ($filterExpr) {
                    $conditions[] = $filterExpr;
                }

                $targetTableJoin = [
                    'table' => $targetTableName . ' ' . $targetTableAlias,
                    'condition' => implode(' AND ', $conditions),
                ];
                break;

            default:
                throw new BadMethodCallException('Type of association must be one of *_TO_ONE or MANY_TO_MANY');
        }

        // Handle WITH clause
        $withCondition = $condExpr === null ? '' : ('(' . $this->walkConditionalExpression($condExpr) . ')');

        if ($targetClass->isInheritanceTypeJoined()) {
            $ctiJoins = $this->generateClassTableInheritanceJoins($targetClass, $joinedDqlAlias);
            // If we have WITH condition, we need to build nested joins for target class table and cti joins
            if ($withCondition && $ctiJoins) {
                $sql .= '(' . $targetTableJoin['table'] . $ctiJoins . ') ON ' . $targetTableJoin['condition'];
            } else {
                $sql .= $targetTableJoin['table'] . ' ON ' . $targetTableJoin['condition'] . $ctiJoins;
            }
        } else {
            $sql .= $targetTableJoin['table'] . ' ON ' . $targetTableJoin['condition'];
        }

        if ($withCondition) {

View on GitHub (pinned to d9b9ff7301)

When it happens

Trigger: Thrown at src/Query/SqlWalker.php:1054 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of doctrine/orm@d9b9ff7301 (2026-08-21). Data as JSON: /api/errors/c7bded36083a94b3. Report an issue: GitHub.