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class OEmbedCache < ActiveRecord::Base
serialize :data
validates :data, :presence => true
has_many :posts
# NOTE API V1 to be extracted
acts_as_api
api_accessible :backbone do |t|
t.add :data
end
def self.find_or_create_by(opts)
cache = OEmbedCache.find_or_initialize_by(opts)
return cache if cache.persisted?
cache.fetch_and_save_oembed_data! # make after create callback and drop this method ?
cache
end
def fetch_and_save_oembed_data!
begin
response = OEmbed::Providers.get(self.url, {:maxwidth => 420, :maxheight => 420, :frame => 1, :iframe => 1})
rescue => e
# noop
else
self.data = response.fields
self.data['trusted_endpoint_url'] = response.provider.endpoint
self.save
end
end
def is_trusted_and_has_html?
self.from_trusted? and self.data.has_key?('html')
end
def from_trusted?
SECURE_ENDPOINTS.include?(self.data['trusted_endpoint_url'])
end
def options_hash(prefix = 'thumbnail_')
return nil unless self.data.has_key?(prefix + 'url')
{
:height => self.data.fetch(prefix + 'height', ''),
:width => self.data.fetch(prefix + 'width', ''),
:alt => self.data.fetch('title', ''),
}
end
end
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