lib/webrat/core/elements/form.rb
require "webrat/core/elements/field"
require "webrat/core_extensions/blank"
require "webrat/core/elements/element"
require "webrat/core/locators/field_named_locator"
module Webrat
class Form < Element #:nodoc:
attr_reader :element
def self.xpath_search
[".//form"]
end
def fields
@fields ||= Field.load_all(@session, @element)
end
def submit
@session.request_page(form_action, form_method, params)
end
def field_named(name, *field_types)
Webrat::Locators::FieldNamedLocator.new(@session, dom, name, *field_types).locate
end
protected
def dom
@session.dom.xpath(path).first
end
def fields_by_type(field_types)
if field_types.any?
fields.select { |f| field_types.include?(f.class) }
else
fields
end
end
# iterate over all form fields to build a request querystring to get params from it,
# for file_field we made a work around to pass a digest as value to later replace it
# in params hash with the real file.
def params
query_string = []
replaces = {}
fields.each do |field|
next if field.to_query_string.nil?
replaces.merge!({field.digest_value => field.test_uploaded_file}) if field.is_a?(FileField)
query_string << field.to_query_string
end
query_params = self.class.query_string_to_params(query_string.join('&'))
query_params = self.class.replace_params_values(query_params, replaces)
self.class.unescape_params(query_params)
end
def form_method
@element["method"].blank? ? :get : @element["method"].downcase
end
def form_action
@element["action"].blank? ? @session.current_url : @element["action"]
end
def self.replace_param_value(params, oval, nval)
output = Hash.new
params.each do |key, value|
case value
when Hash
value = replace_param_value(value, oval, nval)
when Array
value = value.map { |o| o == oval ? nval : ( o.is_a?(Hash) ? replace_param_value(o, oval, nval) : o) }
when oval
value = nval
end
output[key] = value
end
output
end
def self.replace_params_values(params, values)
values.each do |key, value|
params = replace_param_value(params, key, value)
end
params
end
def self.unescape_params(params)
case params.class.name
when 'Hash', 'Mash'
params.each { |key,value| params[key] = unescape_params(value) }
params
when 'Array'
params.collect { |value| unescape_params(value) }
else
params.is_a?(String) ? CGI.unescapeHTML(params) : params
end
end
def self.query_string_to_params(query_string)
case Webrat.configuration.mode
when :rails
parse_rails_request_params(query_string)
when :merb
::Merb::Parse.query(query_string)
when :rack, :sinatra
Rack::Utils.parse_nested_query(query_string)
else
query_string.split('&').map {|query| { query.split('=', 2).first => query.split('=', 2).last }}
end
end
def self.parse_rails_request_params(query_string)
if defined?(ActionController::AbstractRequest)
ActionController::AbstractRequest.parse_query_parameters(query_string)
elsif defined?(ActionController::UrlEncodedPairParser)
ActionController::UrlEncodedPairParser.parse_query_parameters(query_string)
else
Rack::Utils.parse_nested_query(query_string)
end
end
end
end