Class: ActiveFedora::Datastream

Inherits:

Rubydora::Datastream

• Object
• Rubydora::Datastream
• ActiveFedora::Datastream

show all

Defined in:

lib/active_fedora/datastream.rb

Overview

Instance Attribute Summary (collapse)

• - (Object) digital_object writeonly

  Sets the attribute digital_object.

• - (Object) dirty

  Returns the value of attribute dirty.

• - (Object) fields

  Returns the value of attribute fields.

• - (Object) last_modified

  Returns the value of attribute last_modified.

Class Method Summary (collapse)

• + (Object) from_xml(tmpl, node)

  Populate a Datastream object based on the "datastream" node from a FOXML file.

Instance Method Summary (collapse)

• - (Object) add_ds_location
• - (Object) add_mime_type
• - (Object) create
• - (Boolean) dirty?

  Test whether this datastream been modified since it was last saved.

• - (Datastream) initialize(digital_object, dsid, options = {}) constructor

  A new instance of Datastream.

• - (Object) inspect
• - (Boolean) new_object?
• - (Object) profile_from_hash(profile_hash)
• - (Object) save
• - (Object) serialize!

  serializes any changed data into the content field.

• - (Object) size
• - (Object) solrize_profile

  :nodoc:.

• - (Object) to_param

  compatibility method for rails' url generators.

• - (Object) validate_content_present

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# File 'lib/active_fedora/datastream.rb', line 10

def initialize(digital_object, dsid, options={})
  ## When you use the versions feature of rubydora (0.5.x), you need to have a 3 argument constructor
  self.fields={}
  self.dirty = false
  super
end

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# File 'lib/active_fedora/datastream.rb', line 6

def digital_object=(value)
  @digital_object = value
end

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# File 'lib/active_fedora/datastream.rb', line 7

def dirty
  @dirty
end

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# File 'lib/active_fedora/datastream.rb', line 7

def fields
  @fields
end

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# File 'lib/active_fedora/datastream.rb', line 7

def last_modified
  @last_modified
end

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# File 'lib/active_fedora/datastream.rb', line 86

def self.from_xml(tmpl, node)
  tmpl.instance_variable_set(:@dirty, false)
  tmpl.controlGroup= node['CONTROL_GROUP']
  tmpl
end

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# File 'lib/active_fedora/datastream.rb', line 25

def add_ds_location
  if self.controlGroup == 'E'
  end
end

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# File 'lib/active_fedora/datastream.rb', line 21

def add_mime_type
  self.mimeType = 'text/xml' unless self.mimeType
end

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# File 'lib/active_fedora/datastream.rb', line 71

def create
  run_callbacks :create do
    repository.add_datastream to_api_params.merge({ :pid => pid, :dsid => dsid })
    reset_profile_attributes
    self
  end
end

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# File 'lib/active_fedora/datastream.rb', line 42

def dirty?
  dirty || changed?
end

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# File 'lib/active_fedora/datastream.rb', line 30

def inspect
  "#<#{self.class}:#{self.hash} @pid=\"#{digital_object ? pid : nil}\" @dsid=\"#{dsid}\" @controlGroup=\"#{controlGroup}\" @dirty=\"#{dirty}\" @mimeType=\"#{mimeType}\" >"
end

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# File 'lib/active_fedora/datastream.rb', line 46

def new_object?
  new?
end

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# File 'lib/active_fedora/datastream.rb', line 104

def profile_from_hash(profile_hash)
  profile_hash.each_pair do |key,value|
    profile[key] = value.to_s
  end
end

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# File 'lib/active_fedora/datastream.rb', line 61

def save
  run_callbacks :save do
    return create if new?
    repository.modify_datastream to_api_params.merge({ :pid => pid, :dsid => dsid })
    reset_profile_attributes
    #Datastream.new(digital_object, dsid)
    self
  end
end

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# File 'lib/active_fedora/datastream.rb', line 81

def serialize!
end

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# File 'lib/active_fedora/datastream.rb', line 17

def size
  self.profile['dsSize']
end

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# File 'lib/active_fedora/datastream.rb', line 92

def solrize_profile # :nodoc:
  profile_hash = {}
  profile.each_pair do |property,value|
    if property =~ /Date/
      value = Time.parse(value) unless value.is_a?(Time)
      value = value.xmlschema
    end
    profile_hash[property] = value
  end
  profile_hash
end

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# File 'lib/active_fedora/datastream.rb', line 37

def to_param
  dsid.gsub(/\./, '%2e')
end

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# File 'lib/active_fedora/datastream.rb', line 50

def validate_content_present
  case controlGroup
  when 'X','M'
    @content.present?
  when 'E','R'
    dsLocation.present?
  else
    raise "Invalid control group: #{controlGroup.inspect}"
  end      
end