From 675ae50396fef70c7e95cd5e9ba3ea92836c5fce Mon Sep 17 00:00:00 2001
From: Kai Moritz <kai@juplo.de>
Date: Tue, 21 Jan 2020 17:46:34 +0100
Subject: [PATCH] WIP

---
 .../java/de/juplo/demo/DemoController.java    | 77 +++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 src/main/java/de/juplo/demo/DemoController.java

diff --git a/src/main/java/de/juplo/demo/DemoController.java b/src/main/java/de/juplo/demo/DemoController.java
new file mode 100644
index 0000000..ddf4e06
--- /dev/null
+++ b/src/main/java/de/juplo/demo/DemoController.java
@@ -0,0 +1,77 @@
+package de.juplo.demo;
+
+
+import java.util.HashMap;
+import java.util.Map;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.ModelAttribute;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+
+
+/**
+ *
+ * @author Kai Moritz
+ */
+@Controller
+public class DemoController
+{
+  private static final Logger LOG =
+      LoggerFactory.getLogger(DemoController.class);
+
+
+  @RequestMapping("/")
+  public String display(
+      @ModelAttribute("form") Map<Integer, Map<String, Boolean>> form)
+  {
+    for (Integer id : form.keySet())
+      for (String entry : form.get(id).keySet())
+        LOG.info("{} - {}: {}", id, entry, form.get(id).get(entry));
+
+    return "form";
+  }
+
+  @RequestMapping(path = "/", params = "row")
+  public String addRow(
+      @ModelAttribute("form") Map<Integer, Map<String, Boolean>> form,
+      @RequestParam Integer row)
+  {
+    LOG.info("Adding row #{}", row);
+    form.put(row, new HashMap<>());
+    return "form";
+  }
+
+  @RequestMapping(path = "/", params = "row")
+  public String removeRow(
+      @ModelAttribute("form") Map<Integer, Map<String, Boolean>> form,
+      @RequestParam Integer row)
+  {
+    Map<String, Boolean> content = form.remove(row);
+    LOG.info("Removed row #{} with content: {}", row, content);
+    return "form";
+  }
+
+  @RequestMapping(path = "/", params = { "row", "entry" })
+  public String addEntry(
+      @ModelAttribute("form") Map<Integer, Map<String, Boolean>> form,
+      @RequestParam Integer row,
+      @RequestParam String entry)
+  {
+    LOG.info("Adding entry {} to row #{}", entry, row);
+    form.get(row).put(entry, Boolean.FALSE);
+    return "form";
+  }
+
+  @RequestMapping(path = "/", params = { "row", "entry" })
+  public String removeEntry(
+      @ModelAttribute("form") Map<Integer, Map<String, Boolean>> form,
+      @RequestParam Integer row,
+      @RequestParam String entry)
+  {
+    Boolean value = form.get(row).remove(entry);
+    LOG.info("Removed entry {} with value {} from row #{}", entry, value, row);
+    return "form";
+  }
+}
-- 
2.20.1