Prevent "old" search results from mucking up the displayed data

- Only accept results if the search term has not changed

lib/inventree/model.dart

@@ -216,8 +216,6 @@ class InvenTreeModel {
 
     if (response.isValid()) {
       int n = int.tryParse(response.data["count"].toString()) ?? 0;
-
-      print("${URL} -> ${n} results");
       return n;
     } else {
       return 0;

lib/widget/search.dart

@@ -105,16 +105,17 @@ class _SearchDisplayState extends RefreshableState<SearchWidget> {
         search(text);
       });
     }
-
   }
 
+  /*
+   * Initiate multiple search requests to the server.
+   * Each request returns at *some point* in the future,
+   * by which time the search input may have changed, giving unexpected results.
+   *
+   * So, each request only causes an update *if* the search term is still the same when it completes
+   */
   Future<void> search(String term) async {
 
-    setState(() {
-      nSearchResults = 0;
-    });
-
-    if (term.isEmpty) {
     setState(() {
       // Do not search on an empty string
       nPartResults = 0;
@@ -127,56 +128,55 @@ class _SearchDisplayState extends RefreshableState<SearchWidget> {
       nSearchResults = 0;
     });
 
+    if (term.isEmpty) {
       return;
     }
 
     // Search parts
-    InvenTreePart().count(
-      searchQuery: term
-    ).then((int n) {
+    InvenTreePart().count(searchQuery: term).then((int n) {
+      if (term == searchController.text) {
         setState(() {
           nPartResults = n;
-
           nSearchResults++;
         });
+      }
     });
 
     // Search part categories
-    InvenTreePartCategory().count(
-      searchQuery: term,
-    ).then((int n) {
+    InvenTreePartCategory().count(searchQuery: term,).then((int n) {
+      if (term == searchController.text) {
         setState(() {
           nCategoryResults = n;
-
           nSearchResults++;
         });
+      }
     });
 
     // Search stock items
-    InvenTreeStockItem().count(
-      searchQuery: term
-    ).then((int n) {
+    InvenTreeStockItem().count(searchQuery: term).then((int n) {
+      if (term == searchController.text) {
         setState(() {
           nStockResults = n;
-
           nSearchResults++;
         });
+      }
     });
 
     // Search stock locations
-    InvenTreeStockLocation().count(
-      searchQuery: term
-    ).then((int n) {
+    InvenTreeStockLocation().count(searchQuery: term).then((int n) {
+      if (term == searchController.text) {
         setState(() {
           nLocationResults = n;
 
           nSearchResults++;
         });
+      }
     });
 
+    // TDOO: Re-implement this once display for companies has been fixed
+    /*
     // Search suppliers
-    InvenTreeCompany().count(
-      searchQuery: term,
+    InvenTreeCompany().count(searchQuery: term,
       filters: {
         "is_supplier": "true",
       },
@@ -186,6 +186,7 @@ class _SearchDisplayState extends RefreshableState<SearchWidget> {
         nSearchResults++;
       });
     });
+     */
 
     // Search purchase orders
     InvenTreePurchaseOrder().count(
@@ -194,10 +195,12 @@ class _SearchDisplayState extends RefreshableState<SearchWidget> {
         "outstanding": "true"
       }
     ).then((int n) {
+      if (term == searchController.text) {
         setState(() {
           nPurchaseOrderResults = n;
           nSearchResults++;
         });
+      }
     });
 
   }