Fixes #740

Core/src/main/java/com/intellectualcrafters/plot/commands/Rate.java

@@ -28,7 +28,7 @@ import java.util.UUID;
 @CommandDeclaration(command = "rate",
         permission = "plots.rate",
         description = "Rate the plot",
-        usage = "/plot rate [#|next]",
+        usage = "/plot rate [#|next|purge]",
         aliases = "rt",
         category = CommandCategory.INFO,
         requiredType = RequiredType.NONE)
@@ -37,7 +37,8 @@ public class Rate extends SubCommand {
     @Override
     public boolean onCommand(final PlotPlayer player, String[] args) {
         if (args.length == 1) {
-            if (args[0].equalsIgnoreCase("next")) {
+            switch (args[0].toLowerCase()) {
+                case "next": {
                     ArrayList<Plot> plots = new ArrayList<>(PS.get().getBasePlots());
                     Collections.sort(plots, new Comparator<Plot>() {
                         @Override
@@ -72,6 +73,19 @@ public class Rate extends SubCommand {
                     MainUtil.sendMessage(player, C.FOUND_NO_PLOTS);
                     return false;
                 }
+                case "purge": {
+                    final Plot plot = player.getCurrentPlot();
+                    if (plot == null) {
+                        return !sendMessage(player, C.NOT_IN_PLOT);
+                    }
+                    if (!Permissions.hasPermission(player, C.PERMISSION_ADMIN_COMMAND_RATE, true)) {
+                        return false;
+                    }
+                    plot.clearRatings();
+                    C.RATINGS_PURGED.send(player);
+                    return true;
+                }
+            }
         }
         final Plot plot = player.getCurrentPlot();
         if (plot == null) {

Core/src/main/java/com/intellectualcrafters/plot/config/C.java

@@ -71,6 +71,7 @@ public enum C {
     PERMISSION_ADMIN_INTERACT_OTHER("plots.admin.interact.other", "static.permissions"),
     PERMISSION_ADMIN_BUILD_HEIGHTLIMIT("plots.admin.build.heightlimit", "static.permissions"),
     PERMISSION_ADMIN_UPDATE("plots.admin.command.update", "static.permissions"),
+    PERMISSION_ADMIN_COMMAND_RATE("plots.admin.command.rate", "static.permissions"),
     PERMISSION_ADMIN_COMMAND_TRUST("plots.admin.command.trust", "static.permissions"),
     PERMISSION_TRUST_EVERYONE("plots.trust.everyone", "static.permissions"),
     PERMISSION_AREA_CREATE("plots.area.create", "static.permissions"),
@@ -311,6 +312,7 @@ public enum C {
     /*
      * Ratings
      */
+    RATINGS_PURGED("$2Purged ratings for this plot", "Ratings"),
     RATING_NOT_VALID("$2You need to specify a number between 1 and 10", "Ratings"),
     RATING_ALREADY_EXISTS("$2You have already rated plot $2%s", "Ratings"),
     RATING_APPLIED("$4You successfully rated plot $2%s", "Ratings"),

Core/src/main/java/com/intellectualcrafters/plot/util/Permissions.java

@@ -14,6 +14,10 @@ import java.util.HashMap;
  */
 public class Permissions {
 
+    public static boolean hasPermission(PlotPlayer player, C caption, boolean notify) {
+        return hasPermission(player, caption.s(), notify);
+    }
+
     /**
      * Check if a player has a permission (C class helps keep track of permissions).
      * @param player