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Contents
# frozen-string-literal: true
#
class Roda
module RodaPlugins
# The class_matchers plugin allows you do define custom regexps and
# conversion procs to use for specific classes. For example, if you
# have multiple routes similar to:
#
# r.on /(\d\d\d\d)-(\d\d)-(\d\d)/ do |y, m, d|
# date = Date.new(y.to_i, m.to_i, d.to_i)
# # ...
# end
#
# You can register a Date class matcher for that regexp (note that
# the block must return an array):
#
# class_matcher(Date, /(\d\d\d\d)-(\d\d)-(\d\d)/) do |y, m, d|
# [Date.new(y.to_i, m.to_i, d.to_i)]
# end
#
# And then use the Date class as a matcher, and it will yield a Date object:
#
# r.on Date do |date|
# # ...
# end
#
# This is useful to DRY up code if you are using the same type of pattern and
# type conversion in multiple places in your application.
#
# This plugin does not work with the params capturing plugin, as it does not
# offer the ability to associate block arguments with named keys.
module ClassMatchers
module ClassMethods
# Set the regexp to use for the given class. The block given will be
# called with all matched values from the regexp, and should return an
# array with the captures to yield to the match block.
def class_matcher(klass, re, &block)
meth = :"_match_class_#{klass}"
self::RodaRequest.class_eval do
consume_re = consume_pattern(re)
define_method(meth){consume(consume_re, &block)}
private meth
end
end
end
end
register_plugin(:class_matchers, ClassMatchers)
end
end
Version data entries
6 entries across 6 versions & 1 rubygems