46 lines
1.2 KiB
Ruby
46 lines
1.2 KiB
Ruby
class OpenGraphCache < ActiveRecord::Base
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validates :title, :presence => true
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validates :ob_type, :presence => true
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validates :image, :presence => true
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validates :url, :presence => true
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has_many :posts
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acts_as_api
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api_accessible :backbone do |t|
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t.add :title
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t.add :ob_type
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t.add :image
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t.add :description
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t.add :url
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end
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def image
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if AppConfig.privacy.camo.proxy_opengraph_thumbnails?
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Diaspora::Camo.image_url(self[:image])
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else
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self[:image]
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end
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end
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def self.find_or_create_by(opts)
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cache = OpenGraphCache.find_or_initialize_by(opts)
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cache.fetch_and_save_opengraph_data! unless cache.persisted?
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cache if cache.persisted? # Make this an after create callback and drop this method ?
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end
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def fetch_and_save_opengraph_data!
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object = OpenGraphReader.fetch!(self.url)
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return unless object
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self.title = object.og.title.truncate(255)
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self.ob_type = object.og.type
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self.image = object.og.image.url
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self.url = object.og.url
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self.description = object.og.description
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self.save
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rescue OpenGraphReader::NoOpenGraphDataError, OpenGraphReader::InvalidObjectError
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end
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end
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