filamentphp/filament · error · LogicException

When trying to guess the inverse relationship for column [{$

Error message

When trying to guess the inverse relationship for column [{$this->getName()}], relationship [{$inverseNestedRelationshipName}] was not found on model [{$recordClass}]. Please define a custom [inverseRelationship()] for this column.

What it means

Error "When trying to guess the inverse relationship for column [{$this->getName()}], relationship [{$inverseNestedRelationshipName}] was not found on model [{$recordClass}]. Please define a custom [inverseRelationship()] for this column." thrown in filamentphp/filament.

Source

Thrown at packages/support/src/Concerns/HasCellState.php:476

            $record = $relationship->getRelated();

            $inverseNestedRelationshipName = (string) str(class_basename($relationship->getParent()::class))
                ->when(
                    ($relationship instanceof BelongsTo ||
                        $relationship instanceof BelongsToMany ||
                        $relationship instanceof BelongsToThrough),
                    fn (Stringable $name) => $name->plural(),
                )
                ->camel();

            if ($record->hasAttribute($inverseNestedRelationshipName) || (! $record->isRelation($inverseNestedRelationshipName))) {
                // The conventional relationship doesn't exist, but we can
                // attempt to use the original relationship name instead.

                if ($record->hasAttribute($namePart) || (! $record->isRelation($namePart))) {
                    $recordClass = $record::class;

                    throw new LogicException("When trying to guess the inverse relationship for column [{$this->getName()}], relationship [{$inverseNestedRelationshipName}] was not found on model [{$recordClass}]. Please define a custom [inverseRelationship()] for this column.");
                }

                $inverseNestedRelationshipName = $namePart;
            }

            array_unshift($inverseRelationshipParts, $inverseNestedRelationshipName);
        }

        return $this->inverseRelationshipName = implode('.', $inverseRelationshipParts);
    }

    public function getRelationshipName(Model $record): ?string
    {
        $hasNestedMorphToRelationship = $this->hasNestedMorphToRelationship($record);

        if (($this->relationshipNameCache !== null) && (! $hasNestedMorphToRelationship)) {
            return $this->relationshipNameCache;
        }

View on GitHub (pinned to 53483fa934)

When it happens

Trigger: Thrown at packages/support/src/Concerns/HasCellState.php:476 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of filamentphp/filament@53483fa934 (2026-08-17). Data as JSON: /api/errors/bb76883d30a16652. Report an issue: GitHub.