couchrest_model/lib/couchrest/casted_array.rb

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#
# Wrapper around Array so that the casted_by attribute is set in all
# elements of the array.
#
module CouchRest
class CastedArray < Array
attr_accessor :casted_by
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attr_accessor :property
def initialize(array, property)
self.property = property
super(array)
end
def << obj
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super(instantiate_and_cast(obj))
end
def push(obj)
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super(instantiate_and_cast(obj))
end
def []= index, obj
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super(index, instantiate_and_cast(obj))
end
protected
def instantiate_and_cast(obj)
if self.casted_by && self.property && obj.class != self.property.type_class
self.property.cast_value(self.casted_by, obj)
else
obj.casted_by = self.casted_by if obj.respond_to?(:casted_by)
obj
end
end
end
end