engine/app/models/asset.rb

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class Asset
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include Mongoid::Document
include Mongoid::Timestamps
## extensions ##
include Extensions::Asset::Types
include Extensions::Asset::Vignette
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## fields ##
field :content_type, :type => String
field :width, :type => Integer
field :height, :type => Integer
field :size, :type => Integer
field :position, :type => Integer, :default => 0
mount_uploader :source, AssetUploader
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## associations ##
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referenced_in :site
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## validations ##
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validates_presence_of :source
## behaviours ##
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## methods ##
alias :name :source_filename
def extname
return nil unless self.source?
File.extname(self.source_filename).gsub(/^\./, '')
end
def to_liquid
{ :url => self.source.url }.merge(self.attributes).stringify_keys
end
end