Module: Hydra::ModelMethods

Included in:
ModsAsset
Defined in:
lib/hydra/model_methods.rb

Instance Method Summary collapse

Instance Method Details

#add_file(file, dsid, file_name) ⇒ Object

Puts the contents of file (posted blob) into a datastream and sets the title and label Sets asset label and title to filename if they’re empty

Parameters:

  • file (#read) —

    the IO object that is the blob

  • file (String) —

    the IO object that is the blob



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# File 'lib/hydra/model_methods.rb', line 26

def add_file(file, dsid, file_name)
  mime_types = MIME::Types.of(file_name)
  mime_type = mime_types.empty? ? "application/octet-stream" : mime_types.first.content_type
  options = {:label=>file_name, :mimeType=>mime_type}
  options[:dsid] = dsid if dsid
  add_file_datastream(file, options)
  set_title_and_label( file_name, :only_if_blank=>true )
end

#apply_depositor_metadata(depositor) ⇒ Object

Adds metadata about the depositor to the asset Most important behavior: if the asset has a rightsMetadata datastream, this method will add depositor_id to its individual edit permissions.

Parameters:

  • depositor (String, #user_key) 


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# File 'lib/hydra/model_methods.rb', line 8

def apply_depositor_metadata(depositor)
  prop_ds = self.datastreams["properties"]
  rights_ds = self.datastreams["rightsMetadata"]
  
  depositor_id = depositor.respond_to?(:user_key) ? depositor.user_key : depositor

  if prop_ds 
    prop_ds.depositor = depositor_id unless prop_ds.nil?
  end
  rights_ds.permissions({:person=>depositor_id}, 'edit') unless rights_ds.nil?
  return true
end

#set_title(new_title, opts = {}) ⇒ Object

Set the title and label on the current object

Parameters:

  • new_title (String)
  • opts (Hash) (defaults to: {}) —

    (optional) hash of configuration options



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# File 'lib/hydra/model_methods.rb', line 60

def set_title(new_title, opts={})
  if self.datastreams.has_key?("descMetadata")
    desc_metadata_ds = self.datastreams["descMetadata"]
    if desc_metadata_ds.respond_to?(:title_values)
      desc_metadata_ds.title_values = new_title
    else
      desc_metadata_ds.title = new_title
    end
  end
end

#set_title_and_label(new_title, opts = {}) ⇒ Object

Set the title and label on the current object

Examples:

Use :only_if_blank option to only update the values when the label is empty

obj.set_title_and_label("My Title", :only_if_blank=> true)

Parameters:

  • new_title (String)
  • opts (Hash) (defaults to: {}) —

    (optional) hash of configuration options



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# File 'lib/hydra/model_methods.rb', line 44

def set_title_and_label(new_title, opts={})
  if opts[:only_if_blank]
    if self.label.nil? || self.label.empty?
      self.label = new_title
      self.set_title( new_title )
    end
  else
    self.label = new_title
    set_title( new_title )
  end
end