Module: Dor::Identifiable

Extended by:
ActiveSupport::Concern
Includes:
Eventable, Upgradable, SolrDocHelper
Included in:
Abstract, AdminPolicyObject, BasicItem, Collection, Publishable, Set, WorkflowObject
Defined in:
lib/dor/models/identifiable.rb

Defined Under Namespace

Modules: ClassMethods

Constant Summary collapse

@@collection_hash = 
{}
@@apo_hash = 
{}
@@hydrus_apo_hash = 
{}
@@hydrus_collection_hash = 
{}

Instance Method Summary collapse

Methods included from Upgradable

add_upgrade_callback, included, run_upgrade_callbacks, #upgrade!

Methods included from Eventable

#add_event

Methods included from SolrDocHelper

#add_solr_value

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(sym, *args) ⇒ Object

Syntactic sugar for identifying applied DOR Concerns e.g., obj.is_identifiable? is the same as obj.is_a?(Dor::Identifiable)



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# File 'lib/dor/models/identifiable.rb', line 43

def method_missing sym, *args
  if sym.to_s =~ /^is_(.+)\?$/
    begin
      klass = Dor.const_get $1.capitalize.to_sym
      return self.is_a?(klass)
    rescue NameError
      return false
    end
  else
    super
  end
end

Instance Method Details

#add_other_Id(type, val) ⇒ Object 



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# File 'lib/dor/models/identifiable.rb', line 138

def add_other_Id(type,val)
  if self.identityMetadata.otherId(type).length>0
    raise 'There is an existing entry for '+node_name+', consider using update_other_identifier.'
  end
  identity_metadata_ds = self.identityMetadata
  identity_metadata_ds.add_otherId(type+':'+val)
end

#add_tag(tag) ⇒ Object 



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# File 'lib/dor/models/identifiable.rb', line 215

def add_tag(tag)
  identity_metadata_ds = self.identityMetadata
  normalized_tag = validate_and_normalize_tag(tag, identity_metadata_ds.tags)
  identity_metadata_ds.add_value(:tag, normalized_tag)
end

#content_type_tag ⇒ Object

helper method to get just the content type tag



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# File 'lib/dor/models/identifiable.rb', line 36

def content_type_tag
  content_tag=tags.select {|tag| tag.include?('Process : Content Type')}
  content_tag.size == 1 ? content_tag[0].split(':').last.strip : ""
end

#initialize(attrs = {}) ⇒ Object 



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# File 'lib/dor/models/identifiable.rb', line 21

def initialize attrs={}
  if Dor::Config.suri.mint_ids
    unless attrs[:pid]
      attrs = attrs.merge!({:pid=>Dor::SuriService.mint_id, :new_object => true})
    end
  end
  super
end

#normalize_tag(tag_str) ⇒ Object

take a tag string and return a normalized tag string



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# File 'lib/dor/models/identifiable.rb', line 186

def normalize_tag(tag_str)
  return normalize_tag_arr(split_tag_to_arr(tag_str))
end

#normalize_tag_arr(tag_arr) ⇒ Object

turn a tag array back into a tag string with a standard format



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# File 'lib/dor/models/identifiable.rb', line 181

def normalize_tag_arr(tag_arr)
  return tag_arr.join(' : ')
end

#remove_other_Id(type, val = nil) ⇒ Object 



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# File 'lib/dor/models/identifiable.rb', line 160

def remove_other_Id(type,val=nil)
  ds_xml=self.identityMetadata.ng_xml
  #split the thing they sent in to find the node name
  removed=false

  ds_xml.search('//otherId[@name=\''+type+'\']').each do |node|
    if node.content===val or val==nil
      node.remove
      removed=true
    end
  end
  return removed
end

#remove_tag(tag) ⇒ Object 



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# File 'lib/dor/models/identifiable.rb', line 221

def remove_tag(tag)
  identity_metadata_ds = self.identityMetadata
  ds_xml = identity_metadata_ds.ng_xml
  removed = false
  ds_xml.search('//tag').each do |node|
    if normalize_tag(node.content) === normalize_tag(tag)
      node.remove
      removed = true
    end
  end
  return removed
end

#set_source_id(source_id) ⇒ Object 



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# File 'lib/dor/models/identifiable.rb', line 134

def set_source_id(source_id)
  self.identityMetadata.sourceId = source_id
end

#split_tag_to_arr(tag_str) ⇒ Object

turns a tag string into an array with one element per tag part. split on “:”, disregard leading and trailing whitespace on tokens.



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# File 'lib/dor/models/identifiable.rb', line 176

def split_tag_to_arr(tag_str)
  return tag_str.split(":").map {|str| str.strip}
end

#tags ⇒ Object

helper method to get the tags as an array



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# File 'lib/dor/models/identifiable.rb', line 31

def tags
  self.identityMetadata.tag
end

#to_solr(solr_doc = Hash.new, *args) ⇒ Object 



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# File 'lib/dor/models/identifiable.rb', line 60

def to_solr(solr_doc=Hash.new, *args)
  self.assert_content_model
  super(solr_doc)
  solr_doc[Dor::INDEX_VERSION_FIELD] = Dor::VERSION
  solr_doc[solr_name('indexed_at',:date)] = Time.now.utc.xmlschema
  add_solr_value(solr_doc, 'indexed_day', Time.now.beginning_of_day.utc.xmlschema, :string, [:searchable, :facetable])
  datastreams.values.each do |ds|
    unless ds.new?
      add_solr_value(solr_doc,'ds_specs',ds.datastream_spec_string,:string,[:displayable])
    end
  end
  add_solr_value(solr_doc, 'title_sort', self.label, :string, [:sortable])
  rels_doc = Nokogiri::XML(self.datastreams['RELS-EXT'].content)
  apos=rels_doc.search('//rdf:RDF/rdf:Description/hydra:isGovernedBy','hydra' => 'http://projecthydra.org/ns/relations#', 'fedora' => 'info:fedora/fedora-system:def/relations-external#', 'rdf' => 'http://www.w3.org/1999/02/22-rdf-syntax-ns#' 	)
  apos.each do |apo_node|
    druid=apo_node['rdf:resource']
    if druid
      druid=druid.gsub('info:fedora/','')
      if @@apo_hash.has_key? druid or @@hydrus_apo_hash.has_key? druid
        add_solr_value(solr_doc, "hydrus_apo_title", @@hydrus_apo_hash[druid], :string, [:searchable, :facetable]) if @@hydrus_apo_hash.has_key? druid
        add_solr_value(solr_doc, "apo_title", @@apo_hash[druid] , :string, [:searchable, :facetable]) if @@apo_hash.has_key? druid
      else
        begin
          apo_object=Dor.find(druid)
          if apo_object.tags.include? 'Project : Hydrus'
            add_solr_value(solr_doc, "hydrus_apo_title", apo_object.label, :string, [:searchable, :facetable])
            @@hydrus_apo_hash[druid]=apo_object.label
          else
            add_solr_value(solr_doc, "apo_title", apo_object.label, :string, [:searchable, :facetable])
            @@apo_hash[druid]=apo_object.label
          end
        rescue
          add_solr_value(solr_doc, "apo_title", druid, :string, [:searchable, :facetable])
        end
      end
    end
  end
  collections=rels_doc.search('//rdf:RDF/rdf:Description/fedora:isMemberOfCollection','fedora' => 'info:fedora/fedora-system:def/relations-external#', 'rdf' => 'http://www.w3.org/1999/02/22-rdf-syntax-ns#' 	)
  collections.each do |collection_node|
    druid=collection_node['rdf:resource']
    if(druid)
      druid=druid.gsub('info:fedora/','')
      if @@collection_hash.has_key? druid or @@hydrus_collection_hash.has_key? druid
        add_solr_value(solr_doc, "hydrus_collection_title", @@hydrus_collection_hash[druid], :string, [:searchable, :facetable]) if @@hydrus_collection_hash.has_key? druid
        add_solr_value(solr_doc, "collection_title", @@collection_hash[druid], :string, [:searchable, :facetable]) if @@collection_hash.has_key? druid
      else
        begin
          collection_object=Dor.find(druid)
          if collection_object.tags.include? 'Project : Hydrus'
            add_solr_value(solr_doc, "hydrus_collection_title", collection_object.label, :string, [:searchable, :facetable])
            @@hydrus_collection_hash[druid]=collection_object.label
          else
            add_solr_value(solr_doc, "collection_title", collection_object.label, :string, [:searchable, :facetable])
            @@collection_hash[druid]=collection_object.label
          end
        rescue
          add_solr_value(solr_doc, "collection_title", druid, :string, [:searchable, :facetable])
        end
      end
    end
  end
  # Fix for ActiveFedora 3.3 to ensure all date fields are properly formatted as UTC XML Schema datetime strings
  solr_doc.each_pair { |k,v|
    if k =~ /_dt|_date$/
      if v.is_a?(Array)
        solr_doc[k] = v.collect { |t| Time.parse(t.to_s).utc.xmlschema }
      else
        solr_doc[k] = Time.parse(v.to_s).utc.xmlschema
      end
    end
  }

  solr_doc
end

#update_other_Id(type, new_val, val = nil) ⇒ Object 



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# File 'lib/dor/models/identifiable.rb', line 146

def update_other_Id(type,new_val, val=nil)
  identity_metadata_ds = self.identityMetadata
  ds_xml=identity_metadata_ds.ng_xml
  #split the thing they sent in to find the node name
  updated=false
  ds_xml.search('//otherId[@name=\''+type+'\']').each do |node|
    if node.content==val or val==nil
      node.content=new_val
      updated=true
    end
  end
  return updated
end

#update_tag(old_tag, new_tag) ⇒ Object 



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# File 'lib/dor/models/identifiable.rb', line 234

def update_tag(old_tag, new_tag)
  identity_metadata_ds = self.identityMetadata
  ds_xml = identity_metadata_ds.ng_xml
  updated = false
  ds_xml.search('//tag').each do |node|
    if normalize_tag(node.content) == normalize_tag(old_tag)
      node.content = normalize_tag(new_tag)
      updated = true
    end
  end
  return updated
end

#validate_and_normalize_tag(tag_str, existing_tag_list) ⇒ Object

take a proposed tag string and a list of the existing tags for the object being edited. if the proposed tag is valid, return it in normalized form. if not, raise an exception with an explanatory message.



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# File 'lib/dor/models/identifiable.rb', line 193

def validate_and_normalize_tag(tag_str, existing_tag_list)
  tag_arr = split_tag_to_arr(tag_str)

  if tag_arr.length < 2
    raise "Invalid tag structure:  tag '#{tag_str}' must have at least 2 elements"
  end

  if tag_arr.detect {|str| str.empty?}
    raise "Invalid tag structure:  tag '#{tag_str}' contains empty elements"
  end

  # note that the comparison for duplicate tags is case-insensitive, but we don't change case as part of the normalized version 
  # we return, because we want to preserve the user's intended case.
  normalized_tag = normalize_tag_arr(tag_arr)
  dupe_existing_tag = existing_tag_list.detect { |existing_tag| normalize_tag(existing_tag).downcase == normalized_tag.downcase }
  if dupe_existing_tag
    raise "An existing tag (#{dupe_existing_tag}) is the same, consider using update_tag?"
  end

  return normalized_tag
end