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tag: v0.11.0
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module ActiveRecord
module Associations
class BelongsToAssociation < AssociationProxy #:nodoc:
def reset
@target = nil
@loaded = false
end
def create(attributes = {})
record = build(attributes)
record.save
record
end
def build(attributes = {})
record = @association_class.new(attributes)
replace(record, true)
record
end
def replace(obj, dont_save = false)
if obj.nil?
@target = @owner[@association_class_primary_key_name] = nil
else
raise_on_type_mismatch(obj) unless obj.nil?
@target = obj
@owner[@association_class_primary_key_name] = obj.id unless obj.new_record?
end
@loaded = true
return (@target.nil? ? nil : self)
end
private
def find_target
if @options[:conditions]
@association_class.find_on_conditions(@owner[@association_class_primary_key_name], interpolate_sql(@options[:conditions]))
else
@association_class.find(@owner[@association_class_primary_key_name])
end
end
def foreign_key_present
!@owner[@association_class_primary_key_name].nil?
end
def target_obsolete?
@owner[@association_class_primary_key_name] != @target.id
end
def construct_sql
# no sql to construct
end
end
end
end
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