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d6cbb27e7b
Having a huge array to whitelist options is not the proper way to handle this case. This means that the ActiveModel::Errors object should know about the options given in *all* validators and break the extensibility added by the validators itself. If the intent is to whitelist options before sending them to I18n, each validator should clean its respective options instead of throwing the responsibility to the Errors object.
This reverts commit bc1c8d58ec.
64 lines
3.5 KiB
Ruby
64 lines
3.5 KiB
Ruby
module ActiveModel
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module Validations
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class FormatValidator < EachValidator
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def validate_each(record, attribute, value)
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if options[:with] && value.to_s !~ options[:with]
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record.errors.add(attribute, :invalid, :default => options[:message], :value => value)
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elsif options[:without] && value.to_s =~ options[:without]
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record.errors.add(attribute, :invalid, :default => options[:message], :value => value)
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end
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end
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def check_validity!
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unless options.include?(:with) ^ options.include?(:without) # ^ == xor, or "exclusive or"
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raise ArgumentError, "Either :with or :without must be supplied (but not both)"
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end
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if options[:with] && !options[:with].is_a?(Regexp)
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raise ArgumentError, "A regular expression must be supplied as the :with option of the configuration hash"
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end
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if options[:without] && !options[:without].is_a?(Regexp)
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raise ArgumentError, "A regular expression must be supplied as the :without option of the configuration hash"
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end
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end
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end
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module HelperMethods
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# Validates whether the value of the specified attribute is of the correct form, going by the regular expression provided.
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# You can require that the attribute matches the regular expression:
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#
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# class Person < ActiveRecord::Base
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# validates_format_of :email, :with => /\A([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})\Z/i, :on => :create
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# end
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#
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# Alternatively, you can require that the specified attribute does _not_ match the regular expression:
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#
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# class Person < ActiveRecord::Base
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# validates_format_of :email, :without => /NOSPAM/
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# end
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#
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# Note: use <tt>\A</tt> and <tt>\Z</tt> to match the start and end of the string, <tt>^</tt> and <tt>$</tt> match the start/end of a line.
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#
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# You must pass either <tt>:with</tt> or <tt>:without</tt> as an option. In addition, both must be a regular expression,
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# or else an exception will be raised.
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#
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# Configuration options:
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# * <tt>:message</tt> - A custom error message (default is: "is invalid").
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# * <tt>:allow_nil</tt> - If set to true, skips this validation if the attribute is +nil+ (default is +false+).
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# * <tt>:allow_blank</tt> - If set to true, skips this validation if the attribute is blank (default is +false+).
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# * <tt>:with</tt> - Regular expression that if the attribute matches will result in a successful validation.
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# * <tt>:without</tt> - Regular expression that if the attribute does not match will result in a successful validation.
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# * <tt>:on</tt> - Specifies when this validation is active (default is <tt>:save</tt>, other options <tt>:create</tt>, <tt>:update</tt>).
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# * <tt>:if</tt> - Specifies a method, proc or string to call to determine if the validation should
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# occur (e.g. <tt>:if => :allow_validation</tt>, or <tt>:if => Proc.new { |user| user.signup_step > 2 }</tt>). The
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# method, proc or string should return or evaluate to a true or false value.
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# * <tt>:unless</tt> - Specifies a method, proc or string to call to determine if the validation should
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# not occur (e.g. <tt>:unless => :skip_validation</tt>, or <tt>:unless => Proc.new { |user| user.signup_step <= 2 }</tt>). The
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# method, proc or string should return or evaluate to a true or false value.
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def validates_format_of(*attr_names)
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validates_with FormatValidator, _merge_attributes(attr_names)
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end
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end
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end
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end
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