FieldTemplate.js: replace `%d` in `<label>` text when no children are present.

javascript/src/FieldTemplate.js

@@ -144,6 +144,10 @@ var QfqNS = QfqNS || {};
                     $element.data(this.name, this.value);
                 }
             });
+
+            if (n.isTextRetainable($element)) {
+                $element.data('element-text', $element.text());
+            }
         });
 
         return $deserializedTemplate;
@@ -162,9 +166,32 @@ var QfqNS = QfqNS || {};
                     this.value = n.replacePlaceholder(retainedPlaceholder, value);
                 }
             });
+
+            if (n.hasRetainedText($element)) {
+                $element.text(n.replacePlaceholder($element.data('element-text'), value));
+            }
+
         });
     };
 
+    /**
+     * @private
+     * @param $element
+     * @returns {*}
+     */
+    n.isTextRetainable = function ($element) {
+        return $element.is("label") && $element.text().indexOf('%d') !== -1 && $element.children().length === 0;
+    };
+
+    /**
+     * @private
+     * @param $element
+     * @returns {boolean}
+     */
+    n.hasRetainedText = function ($element) {
+        return $element.data('element-text') !== undefined;
+    };
+
     /**
      * @private
      * @param targetSelector

mockup/fieldtemplates.html

@@ -37,11 +37,11 @@
 <script id="template" type="text/template">
     <div class="form-inline qfq-line">
         <div class="form-group">
-            <label for="id1_%d" class="control-label">Zeile (A-K)</label>
+            <label for="id1_%d" class="control-label">Zeile (A-K) %d</label>
             <input id="id1_%d" type="text" class="form-control" name="name1_%d">
         </div>
         <div class="form-group">
-            <label for="id2_%d" class="control-label">Zeile (1-10)</label>
+            <label for="id2_%d" class="control-label">Zeile (1-10) %d</label>
             <input id="id2_%d" type="text" class="form-control" name="name2_%d">
         </div>