couchrest_model/lib/couchrest/validation/validation_errors.rb

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# Extracted from dm-validations 0.9.10
#
# Copyright (c) 2007 Guy van den Berg
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
module CouchRest
module Validation
##
#
# @author Guy van den Berg
# @since 0.9
class ValidationErrors
include Enumerable
@@default_error_messages = {
:absent => '%s must be absent',
:inclusion => '%s must be one of [%s]',
:invalid => '%s has an invalid format',
:confirmation => '%s does not match the confirmation',
:accepted => "%s is not accepted",
:nil => '%s must not be nil',
:blank => '%s must not be blank',
:length_between => '%s must be between %s and %s characters long',
:too_long => '%s must be less than %s characters long',
:too_short => '%s must be more than %s characters long',
:wrong_length => '%s must be %s characters long',
:taken => '%s is already taken',
:not_a_number => '%s must be a number',
:not_an_integer => '%s must be an integer',
:greater_than => '%s must be greater than %s',
:greater_than_or_equal_to => "%s must be greater than or equal to %s",
:equal_to => "%s must be equal to %s",
:less_than => '%s must be less than %s',
:less_than_or_equal_to => "%s must be less than or equal to %s",
:value_between => '%s must be between %s and %s',
:primitive => '%s must be of type %s'
}
# Holds a hash with all the default error messages that can be replaced by your own copy or localizations.
cattr_writer :default_error_messages
def self.default_error_message(key, field, *values)
field = CouchRest.humanize(field)
@@default_error_messages[key] % [field, *values].flatten
end
# Clear existing validation errors.
def clear!
errors.clear
end
# Add a validation error. Use the field_name :general if the errors does
# not apply to a specific field of the Resource.
#
# @param <Symbol> field_name the name of the field that caused the error
# @param <String> message the message to add
def add(field_name, message)
(errors[field_name.to_sym] ||= []) << message
end
# Collect all errors into a single list.
def full_messages
errors.inject([]) do |list, pair|
list += pair.last
end
end
# Return validation errors for a particular field_name.
#
# @param <Symbol> field_name the name of the field you want an error for
def on(field_name)
errors_for_field = errors[field_name]
errors_for_field.blank? ? nil : errors_for_field
end
def each
errors.map.each do |k, v|
next if v.blank?
yield(v)
end
end
def empty?
entries.empty?
end
def method_missing(meth, *args, &block)
errors.send(meth, *args, &block)
end
private
def errors
@errors ||= {}
end
end # class ValidationErrors
end # module Validation
end # module CouchRest