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8620bf90c5
In order to deliver debug information to dev team instead of display error message to end user Implemented strict validation concept that suppose to define validation that always raise exception when fails
69 lines
3.0 KiB
Ruby
69 lines
3.0 KiB
Ruby
module ActiveModel
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# == Active Model Acceptance Validator
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module Validations
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class AcceptanceValidator < EachValidator
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def initialize(options)
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super(options.reverse_merge(:allow_nil => true, :accept => "1"))
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end
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def validate_each(record, attribute, value)
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unless value == options[:accept]
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record.errors.add(attribute, :accepted, options.except(:accept, :allow_nil))
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end
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end
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def setup(klass)
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attr_readers = attributes.reject { |name| klass.attribute_method?(name) }
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attr_writers = attributes.reject { |name| klass.attribute_method?("#{name}=") }
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klass.send(:attr_reader, *attr_readers)
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klass.send(:attr_writer, *attr_writers)
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end
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end
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module HelperMethods
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# Encapsulates the pattern of wanting to validate the acceptance of a
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# terms of service check box (or similar agreement). Example:
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#
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# class Person < ActiveRecord::Base
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# validates_acceptance_of :terms_of_service
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# validates_acceptance_of :eula, :message => "must be abided"
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# end
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#
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# If the database column does not exist, the +terms_of_service+ attribute
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# is entirely virtual. This check is performed only if +terms_of_service+
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# is not +nil+ and by default on save.
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#
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# Configuration options:
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# * <tt>:message</tt> - A custom error message (default is: "must be
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# accepted").
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# * <tt>:on</tt> - Specifies when this validation is active. Runs in all
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# validation contexts by default (+nil+), other options are <tt>:create</tt>
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# and <tt>:update</tt>.
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# * <tt>:allow_nil</tt> - Skip validation if attribute is +nil+ (default
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# is true).
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# * <tt>:accept</tt> - Specifies value that is considered accepted.
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# The default value is a string "1", which makes it easy to relate to
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# an HTML checkbox. This should be set to +true+ if you are validating
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# a database column, since the attribute is typecast from "1" to +true+
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# before validation.
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# * <tt>:if</tt> - Specifies a method, proc or string to call to determine
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# if the validation should occur (e.g. <tt>:if => :allow_validation</tt>,
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# 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
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# value.
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# * <tt>:unless</tt> - Specifies a method, proc or string to call to
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# determine if the validation should not occur (for example,
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# <tt>:unless => :skip_validation</tt>, or
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# <tt>:unless => Proc.new { |user| user.signup_step <= 2 }</tt>).
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# The method, proc or string should return or evaluate to a true or
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# false value.
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# * <tt>:strict</tt> - Specifies whether validation should be strict.
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# See <tt>ActiveModel::Validation#validates!</tt> for more information
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def validates_acceptance_of(*attr_names)
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validates_with AcceptanceValidator, _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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