Function: validateForeignKey()

function validateForeignKey(
   modelName, 
   fkField, 
   fkValue, 
   targetModel, 
getModel): Promise<void>

Validate that a foreign key points to an existing record.

Parameters

Parameter	Type	Description
`modelName`	`string`	Source model name (for error messages)
`fkField`	`string`	Foreign key field name
`fkValue`	`string`	Foreign key value (target record ID)
`targetModel`	`string`	Target model to look up
`getModel`	(`name`) => `unknown`	Function to get model instance by name

Promise<void>

ValidationError if the referenced record doesn't exist