64 lines
1.9 KiB
Ruby
64 lines
1.9 KiB
Ruby
module JamRuby
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class MusicNotation < ActiveRecord::Base
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include JamRuby::S3ManagerMixin
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NOTATION_FILE_DIR = "music_session_notations"
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TYPE_NOTATION = 'notation'
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TYPE_AUDIO = 'audio'
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ATTACHMENT_TYPES = [TYPE_NOTATION, TYPE_AUDIO]
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self.primary_key = 'id'
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attr_accessible :file_url, :size, :file_name
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belongs_to :user, :class_name => "JamRuby::User", foreign_key: :user_id
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belongs_to :music_session, :class_name => "JamRuby::MusicSession", foreign_key: :music_session_id
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mount_uploader :file_url, MusicNotationUploader
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before_destroy :delete_s3_files
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#validates :file_url, :presence => true
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validates :attachment_type, :presence => true, inclusion: {in: ATTACHMENT_TYPES}
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validates :size, :presence => true
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def self.create(session_id, type, file, current_user)
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music_notation = MusicNotation.new
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music_notation.attachment_type = type
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music_notation.file_name = file.original_filename
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music_notation.music_session_id = session_id
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music_notation.user = current_user
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music_notation.size = file.size
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# save first to get a valid created_at time
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music_notation.save!
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# now that the model exists (created_at exists), we can save the file in the correct path
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music_notation.file_url = file
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music_notation.save
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music_notation
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end
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def filename
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MusicNotation.construct_filename(self)
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end
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def sign_url(expiration_time = 120)
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s3_manager.sign_url(self[:file_url], {:expires => expiration_time, :secure => true})
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end
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def is_notation?
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self.attachment_type == TYPE_NOTATION
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end
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private
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def self.construct_filename(notation)
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"#{NOTATION_FILE_DIR}/#{notation.created_at.strftime('%Y%m%d%H%M%S')}/#{notation.user.id}/#{notation.file_name}"
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end
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def delete_s3_files
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s3_manager({:public => true}).delete(self[:file_url]) if self[:file_url]
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end
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end
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end |