Class: DatastaxRails::Associations::BelongsToAssociation

Inherits:
SingularAssociation show all
Defined in:
lib/datastax_rails/associations/belongs_to_association.rb

Overview

belongs_to associations are the child side of a parent/child relationship

class Car < DatastaxRails::Base
  uuid :id
  uuid :owner_id
  belongs_to :owner, class_name: 'Person'
end

Valid options:

  • class_name - The class on the other side (if different than what classify returns)

  • foreign_key - The name of the foreign_key column if not just _id at the end of the association name

Instance Attribute Summary collapse

Attributes inherited from Association

#loaded, #owner, #reflection, #target

Instance Method Summary collapse

Methods inherited from SingularAssociation

#build, #create, #create!, #reader, #writer

Methods inherited from Association

#aliased_column_family, #association_scope, #initialize, #klass, #load_target, #loaded!, #reload, #reset, #reset_scope, #scoped, #set_inverse_instance, #stale_target?, #target_scope

Constructor Details

This class inherits a constructor from DatastaxRails::Associations::Association

Instance Attribute Details

#updated ⇒ Object (readonly) Also known as: updated?

Returns the value of attribute updated.



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# File 'lib/datastax_rails/associations/belongs_to_association.rb', line 15

def updated
  @updated
end

Instance Method Details

#replace(record) ⇒ Object 



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# File 'lib/datastax_rails/associations/belongs_to_association.rb', line 17

def replace(record)
  raise_on_type_mismatch(record) if record

  replace_keys(record)
  set_inverse_instance(record)

  @updated = true if record

  self.target = record
end