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class Medium < ActiveRecord::Base
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include Authorization
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has_and_belongs_to_many :operatingsystems
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has_many :hosts
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# We need to include $ in this as $arch, $release, can be in this string
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VALID_NFS_PATH=/^([\w\d\.]+):(\/[\w\d\/\$\.]+)$/
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validates_uniqueness_of :name
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validates_uniqueness_of :path
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validates_presence_of :name, :path
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validates_format_of :name, :with => /\A(\S+\s?)+\Z/, :message => "can't be blank or contain trailing white spaces."
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validates_format_of :path, :with => /^(http|https|ftp|nfs):\/\//,
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:message => "Only URLs with schema http://, https://, ftp:// or nfs:// are allowed (e.g. nfs://server/vol/dir)"
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validates_format_of :media_path, :config_path, :image_path, :allow_blank => true,
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:with => VALID_NFS_PATH, :message => "does not appear to be a valid nfs mount path",
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:if => Proc.new { |m| m.respond_to? :media_path }
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alias_attribute :os, :operatingsystem
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before_destroy Ensure_not_used_by.new(:hosts)
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default_scope :order => 'LOWER(media.name)'
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def as_json(options={})
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super({:only => [:name, :id]}.merge(options))
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end
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def media_host
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media_path.match(VALID_NFS_PATH)[1]
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end
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def jumpstart_host
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config_path.match(VALID_NFS_PATH)[1]
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end
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def media_dir
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media_path.match(VALID_NFS_PATH)[2]
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end
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def jumpstart_dir
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config_path.match(VALID_NFS_PATH)[2]
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end
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# Write the image path, with a trailing "/" if required
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def image_path= path
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write_attribute :image_path, "#{path}#{"/" unless path =~ /\/$|^$/}"
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end
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end
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