Improve external researcher support

dmp-backend/data/src/main/java/eu/eudat/data/dao/entities/ResearcherDaoImpl.java

@@ -28,7 +28,7 @@ public class ResearcherDaoImpl extends DatabaseAccess<Researcher> implements Res
         if (criteria.getName() != null && !criteria.getName().isEmpty())
             query.where((builder, root) ->builder.or(builder.like(builder.lower(root.get("label")), "%" + criteria.getName().toLowerCase() + "%")));
         if (criteria.getReference() != null && !criteria.getReference().isEmpty())
-            query.where((builder, root) ->builder.or(builder.like(builder.lower(root.get("reference")), criteria.getReference().toLowerCase())));
+            query.where((builder, root) ->builder.or(builder.like(root.get("reference"), criteria.getReference())));
         return query;
     }
 

dmp-backend/web/src/main/java/eu/eudat/logic/managers/DataManagementPlanManager.java

@@ -673,7 +673,7 @@ public class DataManagementPlanManager {
         if (newDmp.getResearchers() != null && !newDmp.getResearchers().isEmpty()) {
             for (eu.eudat.data.entities.Researcher researcher : newDmp.getResearchers()) {
                 ResearcherCriteria criteria = new ResearcherCriteria();
-                criteria.setLike(researcher.getReference());
+                criteria.setReference(researcher.getReference());
                 List<eu.eudat.data.entities.Researcher> entries = researcherRepository.getWithCriteria(criteria).toList();
                 if (entries != null && !entries.isEmpty()) researcher.setId(entries.get(0).getId());
                 else {

dmp-backend/web/src/main/java/eu/eudat/logic/managers/ResearcherManager.java

@@ -49,6 +49,7 @@ public class ResearcherManager {
         QueryableList<eu.eudat.data.entities.Researcher> items = apiContext.getOperationsContext().getDatabaseRepository().getResearcherDao().getWithCriteria(researcherCriteriaRequest.getCriteria());
         items.where((builder, root) -> builder.equal(root.get("creationUser").get("id"), principal.getId()));
         List<eu.eudat.models.data.dmp.Researcher> researchers = items.select(item -> new eu.eudat.models.data.dmp.Researcher().fromDataModel(item));
+        researchers = researchers.stream().filter(item -> item.getKey().equals("Internal")).collect(Collectors.toList());
         Map<String, String> keyToSourceMap = configLoader.getKeyToSourceMap();
         for (eu.eudat.models.data.dmp.Researcher item : researchers) {
             if (item.getKey().equals("Internal"))