59 lines
1.3 KiB
Ruby
59 lines
1.3 KiB
Ruby
class UsernameValidator
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def initialize(username)
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@username = username
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@errors = []
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end
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attr_accessor :errors
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attr_reader :username
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def user
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@user ||= User.new(user)
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end
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def valid_format?
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username_exist?
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username_length_min?
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username_length_max?
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username_char_valid?
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username_first_char_valid?
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errors.empty?
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end
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private
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def username_exist?
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return unless errors.empty?
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unless username
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self.errors << I18n.t(:'user.username.blank')
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end
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end
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def username_length_min?
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return unless errors.empty?
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if username.length < User.username_length.begin
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self.errors << I18n.t(:'user.username.short', min: User.username_length.begin)
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end
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end
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def username_length_max?
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return unless errors.empty?
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if username.length > User.username_length.end
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self.errors << I18n.t(:'user.username.long', max: User.username_length.end)
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end
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end
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def username_char_valid?
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return unless errors.empty?
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if username =~ /[^A-Za-z0-9_]/
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self.errors << I18n.t(:'user.username.characters')
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end
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end
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def username_first_char_valid?
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return unless errors.empty?
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if username[0,1] =~ /[^A-Za-z0-9]/
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self.errors << I18n.t(:'user.username.must_begin_with_alphanumeric')
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end
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end
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end
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