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module HstoreAccessor
def self.included(base)
base.extend(ClassMethods)
end
module ClassMethods
def hstore_accessor(hstore_attribute, *keys)
Array(keys).flatten.each do |key|
define_method("#{key}=") do |value|
send("#{hstore_attribute}=", (send(hstore_attribute) || {}).merge(key.to_s => value))
send("#{hstore_attribute}_will_change!")
end
define_method(key) do
send(hstore_attribute) && send(hstore_attribute)[key.to_s]
end
###Right here
send(:scope, "for_#{key}", -> value { where("#{hstore_attribute} -> '#{key}'=?", value.to_s)})
end
end
end
end
ActiveRecord::Base.send(:include, HstoreAccessor)
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