Class: BigbluebuttonRecording

Inherits:
ActiveRecord::Base
  • Object
show all
Includes:
ActiveModel::ForbiddenAttributesProtection
Defined in:
app/models/bigbluebutton_recording.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.overall_average_length ⇒ Object

Returns the overall (i.e. for all recordings) average length of recordings in seconds Uses the length of the default playback format



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# File 'app/models/bigbluebutton_recording.rb', line 37

def self.overall_average_length
  avg = BigbluebuttonPlaybackFormat.joins(:playback_type)
        .where("bigbluebutton_playback_types.default = ?", true).average(:length)
  avg.nil? ? 0 : (avg.truncate(2) * 60)
end

.overall_average_size ⇒ Object

Returns the overall (i.e. for all recordings) average size of recordings in bytes Uses the length of the default playback format



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# File 'app/models/bigbluebutton_recording.rb', line 45

def self.overall_average_size
  avg = BigbluebuttonRecording.average(:size)
  avg.nil? ? 0 : avg
end

.sync(server, recordings, full_sync = false) ⇒ Object

Syncs the recordings in the db with the array of recordings in ‘recordings’, as received from BigBlueButtonApi#get_recordings. Will add new recordings that are not in the db yet and update the ones that already are (matching by ‘recordid’). Will NOT delete recordings from the db if they are not in the array but instead mark them as unavailable. ‘server’ is the BigbluebuttonServer object from which the recordings were fetched.

TODO: catch exceptions on creating/updating recordings



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# File 'app/models/bigbluebutton_recording.rb', line 59

def self.sync(server, recordings, full_sync=false)
  recordings.each do |rec|
    rec_obj = BigbluebuttonRecording.find_by_recordid(rec[:recordID])
    rec_data = adapt_recording_hash(rec)
    BigbluebuttonRecording.transaction do
      if rec_obj
        logger.info "Sync recordings: updating recording #{rec_obj.inspect}"
        logger.debug "Sync recordings: recording data #{rec_data.inspect}"
        self.update_recording(server, rec_obj, rec_data)
      else
        logger.info "Sync recordings: creating recording"
        logger.debug "Sync recordings: recording data #{rec_data.inspect}"
        self.create_recording(server, rec_data)
      end
    end
  end

  # set as unavailable the recordings that are not in 'recordings', but
  # only in a full synchronization process, which means that the recordings
  # in `recordings` are *all* available in `server`, not a subset.
  if full_sync
    recordIDs = recordings.map{ |rec| rec[:recordID] }
    if recordIDs.length <= 0 # empty response
      BigbluebuttonRecording.
        where(available: true, server: server).
        update_all(available: false)
    else
      BigbluebuttonRecording.
        where(available: true, server: server).
        where.not(recordid: recordIDs).
        update_all(available: false)
    end
  end
end

Instance Method Details

#default_playback_format ⇒ Object 



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# File 'app/models/bigbluebutton_recording.rb', line 30

def default_playback_format
  playback_formats.joins(:playback_type)
    .where("bigbluebutton_playback_types.default = ?", true).first
end

#to_param ⇒ Object 



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# File 'app/models/bigbluebutton_recording.rb', line 26

def to_param
  self.recordid
end