139 lines
5.1 KiB
Ruby
139 lines
5.1 KiB
Ruby
# 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 LengthValidator < GenericValidator
|
|
|
|
def initialize(field_name, options)
|
|
super
|
|
@field_name = field_name
|
|
@options = options
|
|
|
|
@min = options[:minimum] || options[:min]
|
|
@max = options[:maximum] || options[:max]
|
|
@equal = options[:is] || options[:equals]
|
|
@range = options[:within] || options[:in]
|
|
|
|
@validation_method ||= :range if @range
|
|
@validation_method ||= :min if @min && @max.nil?
|
|
@validation_method ||= :max if @max && @min.nil?
|
|
@validation_method ||= :equals unless @equal.nil?
|
|
end
|
|
|
|
def call(target)
|
|
field_value = target.validation_property_value(field_name)
|
|
return true if @options[:allow_nil] && field_value.nil?
|
|
|
|
field_value = '' if field_value.nil?
|
|
|
|
# XXX: HACK seems hacky to do this on every validation, probably should
|
|
# do this elsewhere?
|
|
field = CouchRest.humanize(field_name)
|
|
min = @range ? @range.min : @min
|
|
max = @range ? @range.max : @max
|
|
equal = @equal
|
|
|
|
case @validation_method
|
|
when :range then
|
|
unless valid = @range.include?(field_value.size)
|
|
error_message = ValidationErrors.default_error_message(:length_between, field, min, max)
|
|
end
|
|
when :min then
|
|
unless valid = field_value.size >= min
|
|
error_message = ValidationErrors.default_error_message(:too_short, field, min)
|
|
end
|
|
when :max then
|
|
unless valid = field_value.size <= max
|
|
error_message = ValidationErrors.default_error_message(:too_long, field, max)
|
|
end
|
|
when :equals then
|
|
unless valid = field_value.size == equal
|
|
error_message = ValidationErrors.default_error_message(:wrong_length, field, equal)
|
|
end
|
|
end
|
|
|
|
error_message = @options[:message] || error_message
|
|
|
|
add_error(target, error_message, field_name) unless valid
|
|
|
|
return valid
|
|
end
|
|
|
|
end # class LengthValidator
|
|
|
|
module ValidatesLength
|
|
|
|
# Validates that the length of the attribute is equal to, less than,
|
|
# greater than or within a certain range (depending upon the options
|
|
# you specify).
|
|
#
|
|
# @option :allow_nil<Boolean> true/false (default is true)
|
|
# @option :minimum ensures that the attribute's length is greater than
|
|
# or equal to the supplied value
|
|
# @option :min alias for :minimum
|
|
# @option :maximum ensures the attribute's length is less than or equal
|
|
# to the supplied value
|
|
# @option :max alias for :maximum
|
|
# @option :equals ensures the attribute's length is equal to the
|
|
# supplied value
|
|
# @option :is alias for :equals
|
|
# @option :in<Range> given a Range, ensures that the attributes length is
|
|
# include?'ed in the Range
|
|
# @option :within<Range> alias for :in
|
|
#
|
|
# @example [Usage]
|
|
#
|
|
# class Page
|
|
#
|
|
# property high, Integer
|
|
# property low, Integer
|
|
# property just_right, Integer
|
|
#
|
|
# validates_length_of :high, :min => 100000000000
|
|
# validates_length_of :low, :equals => 0
|
|
# validates_length_of :just_right, :within => 1..10
|
|
#
|
|
# # a call to valid? will return false unless:
|
|
# # high is greater than or equal to 100000000000
|
|
# # low is equal to 0
|
|
# # just_right is between 1 and 10 (inclusive of both 1 and 10)
|
|
#
|
|
def validates_length_of(*fields)
|
|
opts = opts_from_validator_args(fields)
|
|
add_validator_to_context(opts, fields, CouchRest::Validation::LengthValidator)
|
|
end
|
|
|
|
def validates_length(*fields)
|
|
warn "[DEPRECATION] `validates_length` is deprecated. Please use `validates_length_of` instead."
|
|
validates_length_of(*fields)
|
|
end
|
|
|
|
end # module ValidatesLength
|
|
end # module Validation
|
|
end # module CouchRest
|