Some performance improvement

ccm-cms/package-lock.json

@@ -1,12 +1,12 @@
 {
     "name": "@librecms/ccm-cms",
-    "version": "7.0.0-SNAPSHOT.2023-03-21T165148",
+    "version": "7.0.0-SNAPSHOT.2023-03-23T131710",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
         "": {
             "name": "@librecms/ccm-cms",
-            "version": "7.0.0-SNAPSHOT.2023-03-21T165148",
+            "version": "7.0.0-SNAPSHOT.2023-03-23T131710",
             "license": "LGPL-3.0-or-later",
             "dependencies": {
                 "@tiptap/core": "^2.0.0-beta.127",

ccm-cms/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@librecms/ccm-cms",
-    "version": "7.0.0-SNAPSHOT.2023-03-21T165148",
+    "version": "7.0.0-SNAPSHOT.2023-03-23T131710",
     "description": "JavaScript stuff for ccm-cms",
     "main": "target/generated-resources/assets/@content-sections/cms-admin.js",
     "types": "target/generated-resources/assets/@content-sections/cms-admin.d.ts",

ccm-cms/src/main/java/org/librecms/contentsection/ContentSection.java

@@ -54,6 +54,8 @@ import org.librecms.lifecycle.LifecycleDefinition;
 import java.util.HashSet;
 import java.util.Set;
 
+import javax.persistence.NamedNativeQueries;
+import javax.persistence.NamedNativeQuery;
 import javax.persistence.OrderBy;
 
 import static org.librecms.CmsConstants.*;
@@ -118,6 +120,48 @@ import static org.librecms.CmsConstants.*;
                     + "                   OR p.object = :rootAssetsFolder) "
                     + "AND p.grantee = :role")
 })
+@NamedNativeQueries({
+    @NamedNativeQuery(
+        name = "ContentSection.countAssetSubFoldersOfRootFolder",
+        query = "SELECT COUNT(*) "
+                    + "FROM ccm_core.categories "
+                    + "WHERE parent_category_id = ("
+                    + "    SELECT root_assets_folder_id "
+                    + "    FROM ccm_cms.content_sections "
+                    + "    WHERE object_id = :sectionId"
+                    + ")"
+    ),
+    @NamedNativeQuery(
+        name = "ContentSection.countDocumentSubFoldersOfRootFolder",
+        query = "SELECT COUNT(*) "
+                    + "FROM ccm_core.categories "
+                    + "WHERE parent_category_id = ("
+                    + "    SELECT root_documents_folder_id "
+                    + "    FROM ccm_cms.content_sections "
+                    + "    WHERE object_id = :sectionId"
+                    + ")"
+    ),
+    @NamedNativeQuery(
+        name = "ContentSection.countObjectsInRootAssetsFolder",
+        query = "SELECT COUNT(*) "
+            + "FROM ccm_core.categorizations "
+            + "WHERE category_id = ("
+            + "    SELECT root_assets_folder_id "
+            + "    FROM ccm_cms.content_sections "
+            + "    WHERE object_id = :sectionId"
+            + ");"
+    ),
+    @NamedNativeQuery(
+        name = "ContentSection.countObjectsInRootDocumentsFolder",
+        query = "SELECT COUNT(*) "
+            + "FROM ccm_core.categorizations "
+            + "WHERE category_id = ("
+            + "    SELECT root_documents_folder_id "
+            + "    FROM ccm_cms.content_sections "
+            + "    WHERE object_id = :sectionId"
+            + ");"
+    )
+})
 //@ApplicationType(
 //    name = CONTENT_SECTION_APP_TYPE,
 //    descBundle = "org.librecms.contentsection.ContentSectionResources",

ccm-cms/src/main/java/org/librecms/contentsection/ContentSectionRepository.java

@@ -23,7 +23,9 @@ import org.libreccm.core.CoreConstants;
 import org.libreccm.security.AuthorizationRequired;
 import org.libreccm.security.RequiresPrivilege;
 
+import java.math.BigInteger;
 import java.util.List;
+import java.util.Objects;
 import java.util.Optional;
 import java.util.UUID;
 
@@ -72,8 +74,10 @@ public class ContentSectionRepository
         }
 
         final TypedQuery<ContentSection> query = getEntityManager()
-            .createNamedQuery("ContentSection.findByLabel",
-                              ContentSection.class);
+            .createNamedQuery(
+                "ContentSection.findByLabel",
+                ContentSection.class
+            );
         query.setParameter("label", label);
 
         try {
@@ -83,6 +87,60 @@ public class ContentSectionRepository
         }
     }
 
+    public long countAssetSubFoldersOfRootFolder(final ContentSection section) {
+        Objects.requireNonNull(section);
+
+        final BigInteger result = (BigInteger) getEntityManager()
+            .createNamedQuery(
+                "ContentSection.countAssetSubFoldersOfRootFolder"
+            )
+            .setParameter("sectionId", section.getObjectId())
+            .getSingleResult();
+
+        return result.longValue();
+    }
+
+    public long countDocumentSubFoldersOfRootFolder(
+        final ContentSection section
+    ) {
+        Objects.requireNonNull(section);
+
+        final BigInteger result = (BigInteger) getEntityManager()
+            .createNamedQuery(
+                "ContentSection.countDocumentSubFoldersOfRootFolder"
+            )
+            .setParameter("sectionId", section.getObjectId())
+            .getSingleResult();
+        
+        return result.longValue();
+    }
+
+    public long countObjectsInRootAssetFolder(final ContentSection section) {
+        Objects.requireNonNull(section);
+
+        final BigInteger result = (BigInteger) getEntityManager()
+            .createNamedQuery(
+                "ContentSection.countObjectsInRootAssetsFolder"
+            )
+            .setParameter("sectionId", section.getObjectId())
+            .getSingleResult();
+        
+        return result.longValue();
+    }
+
+    public long countObjectsInRootDocumentsFolder(final ContentSection section) {
+        Objects.requireNonNull(section);
+
+        final BigInteger result = (BigInteger) getEntityManager()
+            .createNamedQuery(
+                "ContentSection.countObjectsInRootDocumentsFolder"
+            )
+            .setParameter("sectionId", section.getObjectId())
+            .getSingleResult();
+        
+        return result.longValue();
+    }
+
     @Override
     public Class<ContentSection> getEntityClass() {
         return ContentSection.class;

ccm-cms/src/main/java/org/librecms/ui/ContentSectionsController.java

@@ -244,13 +244,29 @@ public class ContentSectionsController {
      *         {@code false} is not.
      */
     protected boolean canDelete(final ContentSection section) {
-        final Folder rootAssetsFolder = section.getRootAssetsFolder();
-        final Folder rootDocumentsFolder = section.getRootDocumentsFolder();
+        final long rootAssetFolders = sectionRepo
+            .countAssetSubFoldersOfRootFolder(section);
+        final long rootDocumentFolders = sectionRepo
+            .countDocumentSubFoldersOfRootFolder(section);
+        final long assetsInRootFolder = sectionRepo
+            .countObjectsInRootAssetFolder(section);
+        final long documentsInRootFolder = sectionRepo
+            .countObjectsInRootDocumentsFolder(section);
 
-        return rootAssetsFolder.getSubFolders().isEmpty()
-                   && rootAssetsFolder.getObjects().isEmpty()
-                   && rootDocumentsFolder.getSubFolders().isEmpty()
-                   && rootDocumentsFolder.getObjects().isEmpty();
+        final long result = rootAssetFolders
+                                + rootDocumentFolders
+                                + assetsInRootFolder
+                                + documentsInRootFolder;
+
+        return result == 0;
+
+//        final Folder rootAssetsFolder = section.getRootAssetsFolder();
+//        final Folder rootDocumentsFolder = section.getRootDocumentsFolder();
+//
+//        return rootAssetsFolder.getSubFolders().isEmpty()
+//                   && rootAssetsFolder.getObjects().isEmpty()
+//                   && rootDocumentsFolder.getSubFolders().isEmpty()
+//                   && rootDocumentsFolder.getObjects().isEmpty();
     }
 
 }

ccm-cms/src/main/java/org/librecms/ui/ContentSectionsTableRow.java

@@ -49,6 +49,20 @@ public class ContentSectionsTableRow implements
      */
     private boolean deletable;
     
+    public ContentSectionsTableRow() {
+        // Nothing
+    }
+    
+    public ContentSectionsTableRow(
+        final long sectionId,
+        final String label,
+        final boolean deletable
+    ) {
+        this.sectionId = sectionId;
+        this.label = label;
+        this.deletable = deletable;
+    }
+
     public long getSectionId() {
         return sectionId;
     }