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class Record < ActiveRecord::Base
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belongs_to :domain
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cattr_reader :types
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@@types = ['SOA', 'NS', 'A', 'MX', 'TXT', 'CNAME']
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validates :domain_id, :name, :presence => true
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validates :type, :inclusion => {:in => @@types, :message => "Unknown record type"}
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# RFC 2181, 8
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validates :ttl, :numericality => { :greater_than_or_equal_to => 0, :less_than => 2**31 }, :allow_blank => true
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before_validation :prepare_name!
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before_save :update_change_date
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after_save :update_soa_serial
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# By default records don't support priorities.
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# Those who do can overwrite this in their own classes.
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def supports_priority?; false end
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def shortname; name.gsub(/\.?#{self.domain.name}$/, '') end
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def shortname=(value); self.name = value end
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protected
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def prepare_name!
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return if domain.nil? or domain.name.blank?
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self.name = domain.name if name.blank? or name == '@'
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self.name << ".#{domain.name}" unless name.index(domain.name)
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end
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# Update the change date for automatic serial number generation
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def update_change_date; self.change_date = Time.now.to_i end
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def update_soa_serial #:nodoc:
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unless type == 'SOA' || @serial_updated || domain.slave?
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domain.soa_record.update_serial!
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@serial_updated = true
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end
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end
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end
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