From 0801d56fd07db8967f479d04d7ddeef5a2a18c4e Mon Sep 17 00:00:00 2001
From: Leonid Andreev <leonid@hmdc.harvard.edu>
Date: Fri, 17 Nov 2017 15:36:04 -0500
Subject: [PATCH] ldjson should will only be embedded into the page if this is
 the LATEST PUBLISHED version (#2243)

---
 .../edu/harvard/iq/dataverse/DatasetPage.java | 34 +++++++++++++++++--
 1 file changed, 32 insertions(+), 2 deletions(-)

diff --git a/src/main/java/edu/harvard/iq/dataverse/DatasetPage.java b/src/main/java/edu/harvard/iq/dataverse/DatasetPage.java
index 64d0012d4b9..45ecf178c52 100644
--- a/src/main/java/edu/harvard/iq/dataverse/DatasetPage.java
+++ b/src/main/java/edu/harvard/iq/dataverse/DatasetPage.java
@@ -79,6 +79,7 @@
 import java.util.logging.Level;
 import edu.harvard.iq.dataverse.datasetutility.TwoRavensHelper;
 import edu.harvard.iq.dataverse.datasetutility.WorldMapPermissionHelper;
+import edu.harvard.iq.dataverse.engine.command.impl.GetLatestPublishedDatasetVersionCommand;
 import edu.harvard.iq.dataverse.engine.command.impl.RequestRsyncScriptCommand;
 import edu.harvard.iq.dataverse.engine.command.impl.PublishDatasetResult;
 import edu.harvard.iq.dataverse.engine.command.impl.RestrictFileCommand;
@@ -3957,8 +3958,37 @@ public List<DatasetField> getDatasetSummaryFields() {
        
         return DatasetUtil.getDatasetSummaryFields(workingVersion, customFields);
     }
-
+    
+    Boolean thisLatestReleasedVersion = null;
+    
+    public boolean isThisLatestReleasedVersion() {
+        if (thisLatestReleasedVersion != null) {
+            return thisLatestReleasedVersion;
+        }
+        
+        if (!workingVersion.isPublished()) {
+            thisLatestReleasedVersion = false;
+            return false;
+        }
+        
+        DatasetVersion latestPublishedVersion = null;
+        Command<DatasetVersion> cmd = new GetLatestPublishedDatasetVersionCommand(dvRequestService.getDataverseRequest(), dataset);
+        try {
+            latestPublishedVersion = commandEngine.submit(cmd);
+        } catch (Exception ex) {
+            // whatever...
+        }
+        
+        thisLatestReleasedVersion = workingVersion.equals(latestPublishedVersion);
+        
+        return thisLatestReleasedVersion;
+        
+    }
+    
     public String getJsonLd() {
-        return workingVersion.getJsonLd();
+        if (isThisLatestReleasedVersion()) {
+            return workingVersion.getJsonLd();
+        }
+        return "";
     }
 }