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push the before filter lambdas to factory methods

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This commit is contained in:
Aaron Patterson 2013-05-14 11:27:24 -07:00
parent eac50bc335
commit bd95ff84f3
1 changed files with 59 additions and 41 deletions
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100
activesupport/lib/active_support/callbacks.rb
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@ -110,53 +110,71 @@ module ActiveSupport
def self.build(next_callback, user_callback, user_conditions, chain_config, filter)
if chain_config.key?(:terminator) && user_conditions.any?
halted_lambda = eval "lambda { |result| #{chain_config[:terminator]} }"
lambda { |env|
target = env.target
value = env.value
halted = env.halted
if !halted && user_conditions.all? { |c| c.call(target, value) }
result = user_callback.call target, value
env.halted = halted_lambda.call result
if env.halted
target.send :halted_callback_hook, filter
end
end
next_callback.call env
}
terminal_and_conditional(next_callback, user_callback, user_conditions, halted_lambda, filter)
elsif chain_config.key? :terminator
halted_lambda = eval "lambda { |result| #{chain_config[:terminator]} }"
lambda { |env|
target = env.target
value = env.value
halted = env.halted
if !halted
result = user_callback.call target, value
env.halted = halted_lambda.call result
if env.halted
target.send :halted_callback_hook, filter
end
end
next_callback.call env
}
terminal(next_callback, user_callback, halted_lambda, filter)
elsif user_conditions.any?
lambda { |env|
target = env.target
value = env.value
if user_conditions.all? { |c| c.call(target, value) }
user_callback.call target, value
end
next_callback.call env
}
conditional(next_callback, user_callback, user_conditions)
else
lambda { |env|
user_callback.call env.target, env.value
next_callback.call env
}
simple next_callback, user_callback
end
end
private
def self.terminal_and_conditional(next_callback, user_callback, user_conditions, halted_lambda, filter)
lambda { |env|
target = env.target
value = env.value
halted = env.halted
if !halted && user_conditions.all? { |c| c.call(target, value) }
result = user_callback.call target, value
env.halted = halted_lambda.call result
if env.halted
target.send :halted_callback_hook, filter
end
end
next_callback.call env
}
end
def self.terminal(next_callback, user_callback, halted_lambda, filter)
lambda { |env|
target = env.target
value = env.value
halted = env.halted
if !halted
result = user_callback.call target, value
env.halted = halted_lambda.call result
if env.halted
target.send :halted_callback_hook, filter
end
end
next_callback.call env
}
end
def self.conditional(next_callback, user_callback, user_conditions)
lambda { |env|
target = env.target
value = env.value
if user_conditions.all? { |c| c.call(target, value) }
user_callback.call target, value
end
next_callback.call env
}
end
def self.simple(next_callback, user_callback)
lambda { |env|
user_callback.call env.target, env.value
next_callback.call env
}
end
end
end