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Contents
# frozen_string_literal: true
require_relative 'utils/url'
require_relative 'mapping'
module PageMagic
# class Transitions - used for registering the page classes that should be used against particular paths
class Transitions < Hash
REGEXP_MAPPING_MSG = 'URL could not be derived because mapping contains Regexps'
# Create a new transitions object.
# @param [Hash{String,PageMagic::Mapping => PageMagic}] transitions a map of paths to pages
# @example
# Transitions.new('/path1' => Page1, Matcher.new('/another_*') => AnotherPageClass )
def initialize(transitions)
super
transitions.each do |key, value|
key = key.is_a?(Mapping) ? key : Mapping.new(key)
self[key] = value
end
end
# get the url to be used when visiting the path mapped against the given page
# @param [PageMagic] page - the page class to get the mapped path from
# @param [String] base_url - the base url of the site to be joined to the mapped path
# @return String
# @raise InvalidURLException - Raised if it is not possible to generate the url for the mapped page
# i.e. if the mapping is a regular expression.
def url_for(page, base_url:)
return unless (mapping = key(page))
raise InvalidURLException, REGEXP_MAPPING_MSG unless mapping.can_compute_uri?
PageMagic::Utils::URL.concat(base_url, mapping.compute_uri)
end
# get the page class mapped to the given url
# @param [String] url - the url to search against
# @return [PageMagic]
def mapped_page(url)
matches(url).first
end
private
def matches(url)
keys.find_all { |matcher| matcher.match?(url) }.sort.collect { |match| self[match] }
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems