metadata

Relation Metadata

All relations in Tower contain metadata that holds information about the relation in question, and is a valuable tool for third party developers to use to extend Tower.

You can access the metadata of the relation in a few different ways.

# Get the metadata for a named relation from the class or document.
Model.reflectOnAssociation("relationName")
model.reflectOnAssociation("relationName")

# Get the metadata that the current object has in its relation.
model.metadata()

# Get the metadata with a specific relation itself on a specific
# document.
person.addresses().metadata

The Metadata Object

The metadata object itself contains more information than one might know what to do with.

• Metadata#className
• Metadata#embedded?
• Metadata#extension
• Metadata#foreignKey
• Metadata#foreignKeyDefault
• Metadata#foreignKeySetter
• Metadata#indexed?
• Metadata#inverse
• Metadata#inverseForeignKey
• Metadata#inverseKlass
• Metadata#inverseSetter
• Metadata#inverseType
• Metadata#inverseTypeSetter
• Metadata#key
• Metadata#klass
• Metadata#macro
• Metadata#polymorphic?
• Metadata#setter
• Metadata#storesForeignKey?
• Metadata#validate?