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module ActiveScaffold
# Exposes a +configure+ method that accepts a block and runs all contents of the block in two contexts, as opposed to the normal one. First, everything gets evaluated as part of the object including Configurable. Then, as a failover, missing methods and variables are evaluated in the original binding of the block.
#
# Note that this only works with "barewords". Constants, instance variables, and class variables are not currently supported in both contexts.
#
# May add the given functionality at both the class and instance level. For the former, use +extend+, and for the latter, use +include+.
module Configurable
def configure(&configuration_block)
return unless configuration_block
@configuration_binding = eval("self", configuration_block.binding)
ret = instance_exec self, &configuration_block
@configuration_binding = nil
return ret
end
# this method will surely need tweaking. for example, i'm not sure if it should call super before or after it tries to eval with the binding.
def method_missing(name, *args)
begin
super
rescue NoMethodError, NameError
if @configuration_binding.nil?
raise $!
else
@configuration_binding.send(name, *args)
end
end
end
end
end
Version data entries
17 entries across 17 versions & 1 rubygems