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belongs_to default
In standard Rails applications, the default is opposite: belongs_to adds an automatic validation to foreign key columns enforcing the presence of a valid value unless you explicitly add the option optional: true. So remember — if you’re ever in the situation of: -you’re trying to save a record -the save is failing -you’re doing the standard debugging technique of printing out zebra.errors.full_messages -you’re seeing an inexplicable validation error message saying that a foreign key column is blank -now you know where the validation is coming from: belongs_to adds it automatically -so figure out why you’re not providing a valid foreign key (usually it is because the parent object failed to save for its own validation reasons)
In standard Rails applications, the default is opposite: belongs_to adds an automatic validation to foreign key columns enforcing the presence of a valid value unless you explicitly add the option optional: true.
So remember — if you’re ever in the situation of:
-you’re trying to save a record
-the save is failing
-you’re doing the standard debugging technique of printing out zebra.errors.full_messages
-you’re seeing an inexplicable validation error message saying that a foreign key column is blank
-now you know where the validation is coming from: belongs_to adds it automatically
-so figure out why you’re not providing a valid foreign key (usually it is because the parent object failed to save for its own validation reasons)
