Investigate in creator being handled out of scope

[etj]

creator fields are handled in an _alternate_id method that should not be intended to manipulate them

ckanext-dcatapit/ckanext/dcatapit/dcat/profiles.py

Lines 521 to 541 in c8edf37

	def _alternate_id(self, dataset_ref, alt_id):
	out = {}
	identifier = self.g.value(alt_id, SKOS.notation)
	if not identifier:
	return out
	out['identifier'] = str(identifier)
	predicate, basekey = DCT.creator, 'creator'
	agent_dict, agent_loc_dict = self._parse_agent(alt_id, predicate, basekey)
	agent = {}
	for k, v in agent_dict.items():
	new_k = 'agent_{}'.format(k[len(basekey) + 1:])
	agent[new_k] = v
	out['agent'] = agent
	if agent_loc_dict.get('creator_name'):
	out['agent']['agent_name'] = agent_loc_dict['creator_name']
	return out

Move the creator logic where it belong.

[etj]

The method is looking for a DCT.creator in the alternate identifier node.

Current dcatapit doc does not mention it.

Anyway adms:Identifier definition does refer to creator:

 <http://www.w3.org/ns/adms#Identifier> dcterms:identifier "adms:Identifier";
 	a rdfs:Class;
 	rdfs:comment "This class is based on the UN/CEFACT Identifier complex type defined in See Section 5.8 of Core Components Data Type Catalogue Version 3.1 (http://www.unece.org/fileadmin/DAM/cefact/codesfortrade/CCTS/CCTS-DTCatalogueVersion3p1.pdf) In RDF this is expressed using the following properties: 
           - the content string should be provided using skos:notation, datatyped with the identifier scheme (inclduing the version number if appropriate); 
           - use dcterms:creator to link to a class describing the agency that manages the identifier scheme or adms:schemaAgency to provide the name as a literal. Although not part of the ADMS conceptual model, it may be useful to provide further properties to the Identifier class such as dcterms:created to provide the date on which the identifier was issued."^^rdf:XMLLiteral;
 	rdfs:isDefinedBy <http://www.w3.org/TR/vocab-adms>;
 	rdfs:label "Identifier"@en.

but its use is not enforced nor recommended nor suggested by AgID.

Remove that code at next cleanup.