Table numbers exclusion: handle saving

view-webapp/src/main/sass/tour.scss

@@ -405,6 +405,10 @@
     margin-top: 0.2em;
   }
 
+  .tables-exclusion {
+    margin-top: 0.2em;
+  }
+
   /* results section */
 
   #results-filter {

view-webapp/src/main/webapp/js/tour-pairing.inc.js

@@ -1,12 +1,31 @@
 let focused = undefined;
 
 function pair(parts) {
-  api.postJson(`tour/${tour_id}/pair/${activeRound}`, parts)
-    .then(rst => {
-      if (rst !== 'error') {
-        document.location.reload();
-      }
-    });
+
+  let doWork = () => {
+    api.postJson(`tour/${tour_id}/pair/${activeRound}`, parts)
+      .then(rst => {
+        if (rst !== 'error') {
+          document.location.reload();
+        }
+      });
+  }
+
+  let tablesExclusionControl = $('#exclude-tables');
+  let value = tablesExclusionControl[0].value;
+  let origValue = tablesExclusionControl.data('orig');
+  if (value === origValue) {
+    // tables exclusion value did not change
+    doWork();
+  } else {
+    // tables exclusion value has change, we must save it first
+    api.putJson(`tour/${tour_id}`, { round: activeRound, excludeTables: value })
+      .then(rst => {
+        if (rst !== 'error') {
+          doWork();
+        }
+      });
+  }
 }
 
 function unpair(games) {

view-webapp/src/main/webapp/tour-pairing.inc.html

@@ -22,6 +22,14 @@
       <button class="ui floating choose-round next-round button">&raquo;</button>
     </div>
     <div class="pairing-stats nobreak">( $pairables.size() pairable, $games.size() games )</div>
+    <div class="tables-exclusion">
+#if($tour.tablesExclusion && $round <= $tour.tablesExclusion.size())
+  #set($tablesExclusion = $!tour.tablesExclusion[$round - 1])
+#else
+  #set($tablesExclusion = '')
+#end
+      Exclude table numbers: <input type="text" id="exclude-tables" name="exclude-tables" placeholder="ex: 1-34, 38, 45-77" data-orig="$tablesExclusion" value="$tablesExclusion"/>
+    </div>
     <div id="pairing-lists">
       <div id="pairing-left">
         <div id="pairables" class="multi-select" title="pairable players">