--- /dev/null
+/*
+ * DemosceneMusic - ListGroupsPage.java - Copyright © 2012 David Roden
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package net.pterodactylus.demoscenemusic.page.admin;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import net.pterodactylus.demoscenemusic.core.Core;
+import net.pterodactylus.demoscenemusic.data.DefaultGroup;
+import net.pterodactylus.demoscenemusic.data.Group;
+import net.pterodactylus.demoscenemusic.page.ServletRequest;
+import net.pterodactylus.util.database.DatabaseException;
+import net.pterodactylus.util.template.Template;
+import net.pterodactylus.util.template.TemplateContext;
+import net.pterodactylus.util.template.TemplateContextFactory;
+import net.pterodactylus.util.web.RedirectException;
+
+/**
+ * Page that lists all {@link Group}s.
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+public class ListGroupsPage extends AdminBasePage {
+
+ /**
+ * Creates a new “list groups” page.
+ *
+ * @param core
+ * The core
+ * @param templateContextFactory
+ * The template context factory
+ * @param template
+ * The template to render
+ */
+ public ListGroupsPage(Core core, TemplateContextFactory templateContextFactory, Template template) {
+ super(core, templateContextFactory, template, "admin.list-groups");
+ }
+
+ //
+ // BASEPAGE METHODS
+ //
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ protected void processTemplate(TemplateContext templateContext, ServletRequest request) throws RedirectException {
+ super.processTemplate(templateContext, request);
+ try {
+ List<Group> allGroups = new ArrayList<Group>(getCore().getDataManager().getAllGroups());
+ Collections.sort(allGroups, DefaultGroup.NAME_COMPARATOR);
+ templateContext.set("groups", allGroups);
+ } catch (DatabaseException de1) {
+ throw new RuntimeException("Could not load all groups.", de1);
+ }
+ }
+
+}