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Size: 1.48 KB
Versions: 15
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Stored size: 1.48 KB
Contents
require 'active_support/concern'
module JSONAPIonify
module Callbacks
extend ActiveSupport::Concern
included do
def self.define_callbacks(*names)
names.each do |name|
chains = {
main: "__#{name}_callback_chain",
before: "__#{name}_before_callback_chain",
after: "__#{name}_after_callback_chain"
}
define_method chains[:main] do |*args, &block|
block ||= proc {}
if send(chains[:before], *args) != false
value = instance_exec(*args, &block)
value if send(chains[:after], *args) != false
end
end unless method_defined? chains[:main]
# Define before and after chains
%i{after before}.each do |timing|
define_method chains[timing] { |*| } unless method_defined? chains[timing]
define_singleton_method "#{timing}_#{name}" do |sym = nil, &outer_block|
outer_block = (outer_block || sym).to_proc
prev_chain = instance_method(chains[timing])
define_method chains[timing] do |*args, &block|
if prev_chain.bind(self).call(*args, &block) != false
instance_exec(*args, &outer_block)
end
end
end
end
private *chains.values
end
end
end
def run_callbacks(name, *args, &block)
send("__#{name}_callback_chain", *args, &block)
end
end
end
Version data entries
15 entries across 15 versions & 1 rubygems