def _retrieve_documents (self, doc_term_map):
"""
Takes the doc_term_mapping produced by the organize method and then
builds a proper dictionary mapping id -> doc_data and terms that
occur in the given document.
Returns a dictionary of this document data.
"""
docs = DocumentModel.get(doc_term_map.keys())
united = list()
for doc in docs:
doc['terms'] = doc_term_map[doc['_id']]
united.append(doc)
return united
