Add a function 'reSort()' to 'Collection',

which can be called from QML, as well.

The function 'reSort()' triggers sorting the collection again.
Calling it is *not* required if data within the model itself has changed
(re-sorting will be conducted automatically in that case).
You want to call this function if external data has been updated,
e.g. you sort a model by distance and the current position
of the user has changed.

Author: micuintus

README.md

@@ -164,6 +164,15 @@ function should return true for items that should be included; otherwise false.
 Return the jsobject at the index specified by the number. If Collection is sorted or filtered, then
 the index here refers to the index in the Collection *not* the JsonListModel.
 
+### reSort() : function
+
+Trigger sorting the collection again.
+
+**NOTE** Calling this function is *not* required if data within the model itself has changed
+(re-sorting will be conducted automatically in that case). You want to call this function if
+external data has been updated, e.g. you sort a model by distance and the current position
+of the user has changed.
+
 ### descendingSort : property bool: false
 
 Indicates if the role based sorting is sorted in ascending or descending order.

collection.cpp

@@ -115,3 +115,8 @@ QJSValue Collection::at(int row) const
     return jsonModel->at(source.row());
 }
 
+void Collection::reSort()
+{
+    sort(0);
+}
+

collection.h

@@ -26,6 +26,8 @@ class Collection : public QSortFilterProxyModel
 
     Q_INVOKABLE QJSValue at(int) const;
 
+    Q_INVOKABLE void reSort();
+
     inline bool caseSensitiveSort() const
     {
         return sortCaseSensitivity() == Qt::CaseSensitive;