Stock item serial number functionality (#199)

* Stock item serial number functionality

- Allow serial numbers to be specified when creating a new stock item
- Allow serial number to be edited from stock item context

* Update build number and release notes

assets/release_notes.md

@@ -1,6 +1,12 @@
 ## InvenTree App Release Notes
 ---
 
+### 0.8.2 - August 2022
+---
+
+- Allow serial numbers to be specified when creating new stock items
+- Allow serial numbers to be edited for existing stock items
+
 ### 0.8.1 - August 2022
 ---
 

lib/api_form.dart

@@ -855,17 +855,18 @@ Future<void> launchApiForm(
       IconData icon = FontAwesomeIcons.save,
     }) async {
 
+  showLoadingOverlay(context);
+
   // List of fields defined by the server
   Map<String, dynamic> serverFields = {};
 
   if (url.isNotEmpty) {
 
-    showLoadingOverlay(context);
     var options = await InvenTreeAPI().options(url);
-    hideLoadingOverlay();
 
     // Invalid response from server
     if (!options.isValid()) {
+      hideLoadingOverlay();
       return;
     }
 
@@ -878,6 +879,7 @@ Future<void> launchApiForm(
         icon: FontAwesomeIcons.userTimes,
       );
 
+      hideLoadingOverlay();
       return;
     }
   }
@@ -927,6 +929,8 @@ Future<void> launchApiForm(
     await field.loadInitialData();
   }
 
+  hideLoadingOverlay();
+
   // Now, launch a new widget!
   Navigator.push(
     context,
@@ -1067,7 +1071,6 @@ class _APIFormWidgetState extends State<APIFormWidget> {
           spacerRequired = true;
           break;
       }
-
     }
 
     return widgets;

lib/inventree/stock.dart

@@ -199,6 +199,11 @@ class InvenTreeStockItem extends InvenTreeModel {
       "part": {},
       "location": {},
       "quantity": {},
+      "serial": {},
+      "serial_numbers": {
+        "label": L10().serialNumber,
+        "type": "string",
+      },
       "status": {},
       "batch": {},
       "packaging": {},

lib/widget/part_detail.dart

@@ -544,25 +544,53 @@ class _PartDisplayState extends RefreshableState<PartDetailWidget> {
     return tiles;
   }
 
+  /*
+   * Launch a form to create a new StockItem for this part
+   */
   Future<void> _newStockItem(BuildContext context) async {
 
     var fields = InvenTreeStockItem().formFields();
 
+    // Serial number cannot be directly edited here
+    fields.remove("serial");
+
+    // Hide the "part" field
     fields["part"]["hidden"] = true;
 
     int? default_location = part.defaultLocation;
 
+    Map<String, dynamic> data = {
+      "part": part.pk.toString()
+    };
+
     if (default_location != null) {
-      fields["location"]["value"] = default_location;
+      data["location"] = default_location;
     }
 
+    if (part.isTrackable) {
+      // read the next available serial number
+      showLoadingOverlay(context);
+      var response = await InvenTreeAPI().get("/api/part/${part.pk}/serial-numbers/", expectedStatusCode: null);
+      hideLoadingOverlay();
+
+      if (response.isValid() && response.statusCode == 200) {
+        data["serial_numbers"] = response.data["next"] ?? response.data["latest"];
+      }
+
+      print("response: " + response.statusCode.toString() + response.data.toString());
+
+    } else {
+      // Cannot set serial numbers for non-trackable parts
+      fields.remove("serial_numbers");
+    }
+
+    print("data: ${data.toString()}");
+
     InvenTreeStockItem().createForm(
         context,
         L10().stockItemCreate,
         fields: fields,
-        data: {
+        data: data,
-          "part": "${part.pk}",
-        },
         onSuccess: (result) async {
 
           Map<String, dynamic> data = result as Map<String, dynamic>;

lib/widget/stock_detail.dart

@@ -292,6 +292,11 @@ class _StockItemDisplayState extends RefreshableState<StockDetailWidget> {
     fields.remove("part");
     fields.remove("quantity");
     fields.remove("location");
+    fields.remove("serial_numbers");
+
+    if (part == null || !part!.isTrackable) {
+      fields.remove("serial");
+    }
 
     item.editForm(
       context,

pubspec.yaml

@@ -1,7 +1,7 @@
 name: inventree
 description: InvenTree stock management
 
-version: 0.8.1+47
+version: 0.8.2+48
 
 environment:
   sdk: ">=2.16.0 <3.0.0"