79 lines
2.3 KiB
Ruby
79 lines
2.3 KiB
Ruby
module JamRuby
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# holds a click track or precount file
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class JamTrackFile < ActiveRecord::Base
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include JamRuby::S3ManagerMixin
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# there should only be one Master per JamTrack, but there can be N Track per JamTrack
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FILE_TYPE = %w{ClickWav ClickTxt Precount}
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@@log = Logging.logger[JamTrackFile]
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before_destroy :delete_s3_files
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attr_accessible :jam_track_id, :file_type, :filename, as: :admin
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attr_accessible :url, :md5, :length, as: :admin
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attr_accessor :original_audio_s3_path, :skip_uploader, :preview_generate_error
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before_destroy :delete_s3_files
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validates :track_type, inclusion: {in: FILE_TYPE }
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belongs_to :jam_track, class_name: "JamRuby::JamTrack"
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# create storage directory that will house this jam_track, as well as
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def store_dir
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"jam_track_files"
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end
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# create name of the file
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def filename(original_name)
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"#{store_dir}/#{jam_track.original_artist}/#{jam_track.name}/#{original_name}"
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end
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def manually_uploaded_filename
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if click_wav?
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filename('click.wav')
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elsif click_txt?
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filename('click.txt')
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elsif precount?
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filename('precount.wav')
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else
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raise 'unknown file type: ' + file_type
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end
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end
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def click_wav?
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track_type == 'ClickWav'
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end
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def click_txt?
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track_type == 'ClickTxt'
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end
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def precount?
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track_type == 'Precount'
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end
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# creates a short-lived URL that has access to the object.
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# the idea is that this is used when a user who has the rights to this tries to download this JamTrack
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# we would verify their rights (can_download?), and generates a URL in response to the click so that they can download
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# but the url is short lived enough so that it wouldn't be easily shared
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def sign_url(expiration_time = 120)
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s3_manager.sign_url(self[url], {:expires => expiration_time, :response_content_type => 'audio/wav', :secure => true})
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end
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def can_download?(user)
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# I think we have to make a special case for 'previews', but maybe that's just up to the controller to not check can_download?
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jam_track.owners.include?(user)
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end
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def delete_s3_files
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s3_manager.delete(self[:url]) if self[:url] && s3_manager.exists?(self[:url])
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end
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end
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end
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