Fixed bugs:

- typo on one page
- show archive only when public or to moderators

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

src/main/java/de/srsoftware/widerhall/data/Database.java

@@ -91,6 +91,7 @@ public class Database {
      */
     public class Request{
 
+        private String groupBy = null;
         private final StringBuilder sql; // buffer the sql to be built
         private final HashMap<String, List<Object>> where = new HashMap<>(); // buffer condition statements for select
         private final HashMap<String,Object> values = new HashMap<>(); // buffer values for insert/update statements
@@ -128,33 +129,14 @@ public class Database {
             }
         }
 
+        private void applyGrouping(){
+            if (groupBy != null && !groupBy.isBlank()) sql.append(" GROUP BY ").append(groupBy.trim());
+        }
+
         private void applySorting(){
             if (!sortFields.isEmpty()) sql.append(" ORDER BY ").append(String.join(", ",sortFields));
         }
 
-        @Override
-        protected Request clone() {
-            Request clone = new Request(new StringBuilder(sql));
-            clone.where.putAll(where);
-            clone.values.putAll(values);
-            return clone;
-        }
-
-        /**
-         * finalize sql, save sql and arguments as compiled request
-         * @return
-         */
-        public CompiledRequest compile(Object ...additionalArgs){
-            var args = new ArrayList<>();
-            applyValues(args);
-            applyConditions(args);
-            applySorting();
-            if (additionalArgs != null) {
-                for (Object arg : additionalArgs) args.add(arg);
-            }
-            return new CompiledRequest(sql.toString(),args);
-        }
-
         /**
          * apply values (for insert or update statements)
          * @param args
@@ -188,6 +170,38 @@ public class Database {
         }
 
 
+
+        @Override
+        protected Request clone() {
+            Request clone = new Request(new StringBuilder(sql));
+            clone.where.putAll(where);
+            clone.values.putAll(values);
+            return clone;
+        }
+
+        /**
+         * finalize sql, save sql and arguments as compiled request
+         * @return
+         */
+        public CompiledRequest compile(Object ...additionalArgs){
+            var args = new ArrayList<>();
+            applyValues(args);
+            applyConditions(args);
+            applyGrouping();
+            applySorting();
+            if (additionalArgs != null) {
+                for (Object arg : additionalArgs) args.add(arg);
+            }
+            return new CompiledRequest(sql.toString(),args);
+        }
+
+
+
+        public Request groupBy(String column) {
+            groupBy = column;
+            return this;
+        }
+
         public void run() throws SQLException {
             compile().run();
         }