Class: ActiveFedora::ContentModel

Inherits:
Base
  • Object
show all
Defined in:
lib/active_fedora/content_model.rb

Constant Summary collapse

CMODEL_NAMESPACE = 
"afmodel"
CMODEL_PID_SUFFIX = 
""

Constants included from SemanticNode

SemanticNode::PREDICATE_MAPPINGS

Instance Attribute Summary collapse

Attributes inherited from Base

#named_datastreams_desc

Attributes included from SemanticNode

#internal_uri, #load_from_solr, #named_relationship_desc, #relationships_are_dirty

Attributes included from Model

#properties

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Base

#add, #add_datastream, #add_file_datastream, #add_named_datastream, #add_named_file_datastream, #add_relationship, #assert_kind_of, #collection_members_append, #collection_members_remove, #create_datastream, #create_date, create_named_datastream_finders, create_named_datastream_update_methods, #datastream_names, #datastreams, #datastreams_attributes, #datastreams_in_fedora, #datastreams_in_memory, #datastreams_xml, #dc, #delete, deserialize, #errors, #fields, #file_objects, #file_objects_append, #file_streams, #generate_dsid, #get_values_from_datastream, has_datastream, has_metadata, #inner_object, #internal_uri, #is_named_datastream?, #label, #label=, load_instance_from_solr, #logger, #metadata_streams, #modified_date, #named_datastreams, #named_datastreams_attributes, named_datastreams_desc, #named_datastreams_desc_from_class, #named_datastreams_ids, #new_object=, #new_object?, #owner_id, #owner_id=, #pid, pids_from_uris, #refresh, #relationships, #rels_ext, #remove_relationship, #save, #state, #to_param, #to_solr, #to_xml, #update_attributes, #update_datastream_attributes, #update_index, #update_indexed_attributes, #update_named_datastream

Methods included from SemanticNode

#add_named_relationship, #add_relationship, #assert_kind_of, #assert_kind_of_model, #class_from_name, #inbound_named_relationship_predicates, #inbound_relationship_names, #inbound_relationships, included, #is_named_relationship?, #kind_of_model?, #named_inbound_relationships, #named_outbound_relationships, #named_relationship, #named_relationship_predicates, #named_relationship_predicates_from_class, #named_relationship_type, #named_relationships, #named_relationships_desc, #named_relationships_desc_from_class, #named_relationships_from_class, #outbound_named_relationship_predicates, #outbound_relationship_names, #outbound_relationships, #register_named_relationship, #register_named_subject, #register_predicate, #register_subject, #register_triple, #relationship_exists?, #relationship_names, #relationships, #relationships_from_class, #remove_named_relationship, #remove_relationship, #to_rels_ext, #unregister_triple

Methods included from MediaShelfClassLevelInheritableAttributes

included

Methods included from Model

#add_metadata, #create_property_getter, #create_property_setter, #datastream, included

Methods included from FedoraObject

#add_datastream, #datastreams, #datastreams_xml, #dc, #delete, #errors, #inner_object, #owner_id, #pid, #rels_ext, #save, #state

Constructor Details

#initialize(attrs = {}) ⇒ ContentModel

Returns a new instance of ContentModel.



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# File 'lib/active_fedora/content_model.rb', line 8

def initialize(attrs={})
  @pid_suffix = attrs.has_key?(:pid_suffix) ? attrs[:pid_suffix] : CMODEL_PID_SUFFIX
  @namespace = attrs.has_key?(:namespace) ? attrs[:namespace] : CMODEL_NAMESPACE
  super
end

Instance Attribute Details

#namespace ⇒ Object

Returns the value of attribute namespace.



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

def namespace
  @namespace
end

#pid_suffix ⇒ Object

Returns the value of attribute pid_suffix.



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

def pid_suffix
  @pid_suffix
end

Class Method Details

.known_models_for(obj) ⇒ Object 



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# File 'lib/active_fedora/content_model.rb', line 33

def self.known_models_for(obj)
  models_array = []
  models_asserted_by( obj ).each do |model_uri|
    m = uri_to_model_class(model_uri)
    if m
      models_array << m
    end
  end
  
  if models_array.empty?
    models_array = [ActiveFedora::Base]
  end
  
  return models_array
end

.models_asserted_by(obj) ⇒ Object 



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# File 'lib/active_fedora/content_model.rb', line 29

def self.models_asserted_by(obj)
  Array obj.relationships[:self][:has_model]
end

.pid_from_ruby_class(klass, attrs = {}) ⇒ Object 



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# File 'lib/active_fedora/content_model.rb', line 14

def self.pid_from_ruby_class(klass,attrs={})
  sanitized_class_name = klass.name.gsub(/(::)/, '_')
  unless klass.respond_to? :pid_suffix
    pid_suffix = attrs.has_key?(:pid_suffix) ? attrs[:pid_suffix] : CMODEL_PID_SUFFIX
  else
    pid_suffix = klass.pid_suffix
  end
  unless klass.respond_to? :pid_namespace
    namespace = attrs.has_key?(:namespace) ? attrs[:namespace] : CMODEL_NAMESPACE   
  else
    namespace = klass.pid_namespace
  end
  return "#{namespace}:#{sanitized_class_name}#{pid_suffix}" 
end

.uri_to_model_class(uri) ⇒ Object

Returns an ActiveFedora Model class corresponding to the given uri if one can be found. Returns false if no corresponding model can be found.



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# File 'lib/active_fedora/content_model.rb', line 63

def self.uri_to_model_class( uri )
  rc = uri_to_ruby_class(uri)
  if rc && rc.superclass == ActiveFedora::Base
    rc
  else
    false
  end
end

.uri_to_ruby_class(uri) ⇒ Object

Returns a ruby class corresponding to the given uri if one can be found. Returns false if no corresponding class can be found.



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# File 'lib/active_fedora/content_model.rb', line 51

def self.uri_to_ruby_class( uri )
  classname  = uri.gsub("info:fedora/afmodel:", "")
  
  if class_exists?(classname)
    Kernel.const_get(classname)
  else
    false
  end
end