/usr/lib/ruby/vendor_ruby/active_resource/validations.rb is in ruby-activeresource-3.2 3.2.16-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 | require 'active_support/core_ext/array/wrap'
require 'active_support/core_ext/object/blank'
module ActiveResource
class ResourceInvalid < ClientError #:nodoc:
end
# Active Resource validation is reported to and from this object, which is used by Base#save
# to determine whether the object in a valid state to be saved. See usage example in Validations.
class Errors < ActiveModel::Errors
# Grabs errors from an array of messages (like ActiveRecord::Validations).
# The second parameter directs the errors cache to be cleared (default)
# or not (by passing true).
def from_array(messages, save_cache = false)
clear unless save_cache
humanized_attributes = Hash[@base.attributes.keys.map { |attr_name| [attr_name.humanize, attr_name] }]
messages.each do |message|
attr_message = humanized_attributes.keys.detect do |attr_name|
if message[0, attr_name.size + 1] == "#{attr_name} "
add humanized_attributes[attr_name], message[(attr_name.size + 1)..-1]
end
end
self[:base] << message if attr_message.nil?
end
end
# Grabs errors from a json response.
def from_json(json, save_cache = false)
array = Array.wrap(ActiveSupport::JSON.decode(json)['errors']) rescue []
from_array array, save_cache
end
# Grabs errors from an XML response.
def from_xml(xml, save_cache = false)
array = Array.wrap(Hash.from_xml(xml)['errors']['error']) rescue []
from_array array, save_cache
end
end
# Module to support validation and errors with Active Resource objects. The module overrides
# Base#save to rescue ActiveResource::ResourceInvalid exceptions and parse the errors returned
# in the web service response. The module also adds an +errors+ collection that mimics the interface
# of the errors provided by ActiveModel::Errors.
#
# ==== Example
#
# Consider a Person resource on the server requiring both a +first_name+ and a +last_name+ with a
# <tt>validates_presence_of :first_name, :last_name</tt> declaration in the model:
#
# person = Person.new(:first_name => "Jim", :last_name => "")
# person.save # => false (server returns an HTTP 422 status code and errors)
# person.valid? # => false
# person.errors.empty? # => false
# person.errors.count # => 1
# person.errors.full_messages # => ["Last name can't be empty"]
# person.errors[:last_name] # => ["can't be empty"]
# person.last_name = "Halpert"
# person.save # => true (and person is now saved to the remote service)
#
module Validations
extend ActiveSupport::Concern
include ActiveModel::Validations
included do
alias_method_chain :save, :validation
end
# Validate a resource and save (POST) it to the remote web service.
# If any local validations fail - the save (POST) will not be attempted.
def save_with_validation(options={})
perform_validation = options[:validate] != false
# clear the remote validations so they don't interfere with the local
# ones. Otherwise we get an endless loop and can never change the
# fields so as to make the resource valid.
@remote_errors = nil
if perform_validation && valid? || !perform_validation
save_without_validation
true
else
false
end
rescue ResourceInvalid => error
# cache the remote errors because every call to <tt>valid?</tt> clears
# all errors. We must keep a copy to add these back after local
# validations.
@remote_errors = error
load_remote_errors(@remote_errors, true)
false
end
# Loads the set of remote errors into the object's Errors based on the
# content-type of the error-block received.
def load_remote_errors(remote_errors, save_cache = false ) #:nodoc:
case self.class.format
when ActiveResource::Formats[:xml]
errors.from_xml(remote_errors.response.body, save_cache)
when ActiveResource::Formats[:json]
errors.from_json(remote_errors.response.body, save_cache)
end
end
# Checks for errors on an object (i.e., is resource.errors empty?).
#
# Runs all the specified local validations and returns true if no errors
# were added, otherwise false.
# Runs local validations (eg those on your Active Resource model), and
# also any errors returned from the remote system the last time we
# saved.
# Remote errors can only be cleared by trying to re-save the resource.
#
# ==== Examples
# my_person = Person.create(params[:person])
# my_person.valid?
# # => true
#
# my_person.errors.add('login', 'can not be empty') if my_person.login == ''
# my_person.valid?
# # => false
#
def valid?
super
load_remote_errors(@remote_errors, true) if defined?(@remote_errors) && @remote_errors.present?
errors.empty?
end
# Returns the Errors object that holds all information about attribute error messages.
def errors
@errors ||= Errors.new(self)
end
end
end
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