added download option, see #1

src/main/java/de/jottyfan/bico/modules/download/DownloadController.java

@@ -0,0 +1,29 @@
+package de.jottyfan.bico.modules.download;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.bind.annotation.ResponseStatus;
+
+import de.jottyfan.bico.modules.CommonController;
+
+/**
+ *
+ * @author jotty
+ *
+ */
+@Controller
+public class DownloadController extends CommonController {
+
+	@Autowired
+	private DownloadService service;
+
+	@GetMapping(value = "/download", produces = "text/csv")
+	@ResponseBody
+	@ResponseStatus(HttpStatus.OK)
+	public String download() {
+		return service.getCsv();
+	}
+}

src/main/java/de/jottyfan/bico/modules/download/DownloadRepository.java

@@ -0,0 +1,31 @@
+package de.jottyfan.bico.modules.download;
+
+import static de.jottyfan.bico.db.Tables.V_CALENDAR;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.jooq.DSLContext;
+import org.jooq.SelectWhereStep;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Repository;
+
+import de.jottyfan.bico.db.tables.records.VCalendarRecord;
+
+/**
+ *
+ * @author jotty
+ *
+ */
+@Repository
+public class DownloadRepository {
+	private static final Logger LOGGER = LogManager.getLogger(DownloadRepository.class);
+
+	@Autowired
+	private DSLContext jooq;
+
+	public String getCsv() {
+		SelectWhereStep<VCalendarRecord> sql = jooq.selectFrom(V_CALENDAR);
+		LOGGER.trace(sql);
+		return sql.fetch().formatCSV();
+	}
+}

src/main/java/de/jottyfan/bico/modules/download/DownloadService.java

@@ -0,0 +1,20 @@
+package de.jottyfan.bico.modules.download;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+/**
+ *
+ * @author jotty
+ *
+ */
+@Service
+public class DownloadService {
+
+	@Autowired
+	private DownloadRepository repository;
+
+	public String getCsv() {
+		return repository.getCsv();
+	}
+}

src/main/resources/templates/template.html

@@ -24,6 +24,7 @@
 			<ul class="navbar-nav mb-2 mb-lg-0" th:if="${hasBUrole}">
 				<li class="nav-item"><a class="btn btn-outline-secondary" th:href="@{/}" style="margin-left: 12px">Einteilung</a></li>
 				<li class="nav-item"><a class="btn btn-outline-secondary" th:href="@{/subject/list}" style="margin-left: 12px">Themen</a></li>
+				<li class="nav-item"><a class="btn btn-outline-secondary" th:href="@{/download}" style="margin-left: 12px">Download</a></li>
 			</ul>
 			<ul layout:fragment="header"></ul>
 			<ul class="nav navbar-nav ms-auto">