[Fix partially kbss-cvut/record-manager-ui#180] publishRecords does n…

…othing when publishServiceUrl is not configured.

src/main/java/cz/cvut/kbss/study/rest/PatientRecordController.java

@@ -168,11 +168,19 @@ public ResponseEntity<Void> createRecord(@RequestBody PatientRecord record) {
     public RecordImportResult publishRecords(
         @RequestParam(name = "institution", required = false) String institutionKey,
         @RequestParam(required = false) MultiValueMap<String, String> params){
+        String publishServiceUrl = configReader.getConfig(ConfigParam.PUBLISH_SERVICE_URL);
+        if(publishServiceUrl == null || publishServiceUrl.isBlank()) {
+            LOG.info("No publish service url provided, noop.");
+            RecordImportResult result = new RecordImportResult(0);
+            result.addError("Cannot publish completed records. Publish server not configured.");
+            return result;
+        }
+
+        // TODO fetch records completed records
 //        final Page<PatientRecord> result = recordService.findAllFull(RecordFilterMapper.constructRecordFilter(params),
 //                RestUtils.resolvePaging(params));
 //        List<PatientRecord> records = result.getContent();
         List<PatientRecord> records = new ArrayList<>();
-        String publishServiceUrl = configReader.getConfig(ConfigParam.PUBLISH_SERVICE_URL);
         LOG.debug("Publishing records.");
         RecordImportResult response = restTemplate.postForEntity(URI.create(publishServiceUrl), records, RecordImportResult.class).getBody();