Further improvements for stock view

lib/inventree/stock.dart

@@ -15,6 +15,7 @@ class InvenTreeStockItem extends InvenTreeModel {
 
     headers["part_detail"] = "true";
     headers["location_detail"] = "true";
+    headers["supplier_detail"] = "true";
 
     return headers;
   }
@@ -25,6 +26,10 @@ class InvenTreeStockItem extends InvenTreeModel {
     // TODO
   }
 
+  int get partId => jsondata['part'] ?? -1;
+
+  int get trackingItemCount => jsondata['tracking_items'] as int ?? 0;
+
   String get partName {
 
     String nm = '';
@@ -78,12 +83,58 @@ class InvenTreeStockItem extends InvenTreeModel {
     return thumb;
   }
 
+  int get supplierPartId => jsondata['supplier_part'] as int ?? -1;
+
+  String get supplierImage {
+    String thumb = '';
+
+    if (jsondata.containsKey("supplier_detail")) {
+      thumb = jsondata['supplier_detail']['supplier_logo'] ?? '';
+    }
+
+    return thumb;
+  }
+
+  String get supplierName {
+    String sname = '';
+
+    if (jsondata.containsKey("supplier_detail")) {
+      sname = jsondata["supplier_detail"]["supplier_name"] ?? '';
+    }
+
+    return sname;
+  }
+
+  String get supplierSKU {
+    String sku = '';
+
+    if (jsondata.containsKey("supplier_detail")) {
+      sku = jsondata["supplier_detail"]["SKU"] ?? '';
+    }
+
+    return sku;
+  }
+
   int get serialNumber => jsondata['serial'] as int ?? null;
 
-  double get quantity => jsondata['quantity'] as double ?? 0.0;
+  double get quantity => double.tryParse(jsondata['quantity'].toString() ?? '0');
 
   int get locationId => jsondata['location'] as int ?? -1;
 
+  String get locationName {
+    String loc = '';
+
+    if (jsondata.containsKey('location_detail')) {
+      loc = jsondata['location_detail']['name'] ?? '';
+    }
+
+    if (loc.isEmpty) {
+      loc = jsondata['location__name'] ?? '';
+    }
+
+    return loc;
+  }
+
   String get displayQuantity {
     // Display either quantity or serial number!
 

lib/widget/part_display.dart

@@ -61,9 +61,12 @@ class _PartDisplayState extends State<PartDisplayWidget> {
             subtitle: Text("${part.categoryName}"),
             leading: FaIcon(FontAwesomeIcons.stream),
             onTap: () {
-              InvenTreePartCategory().get(part.categoryId).then((var cat) {
+              if (part.categoryId > 0) {
-                Navigator.push(context, MaterialPageRoute(builder: (context) => CategoryDisplayWidget(cat)));
+                InvenTreePartCategory().get(part.categoryId).then((var cat) {
-              });
+                  Navigator.push(context, MaterialPageRoute(
+                      builder: (context) => CategoryDisplayWidget(cat)));
+                });
+              }
             },
           )
       );

lib/widget/stock_display.dart

@@ -1,6 +1,9 @@
 
 
 import 'package:InvenTree/inventree/stock.dart';
+import 'package:InvenTree/inventree/part.dart';
+import 'package:InvenTree/widget/location_display.dart';
+import 'package:InvenTree/widget/part_display.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 
@@ -52,6 +55,100 @@ class _StockItemDisplayState extends State<StockItemDisplayWidget> {
       )
     );
 
+    tiles.add(
+      ListTile(
+        title: Text("Part"),
+        subtitle: Text("${item.partName}"),
+        leading: FaIcon(FontAwesomeIcons.shapes),
+        onTap: () {
+          if (item.partId > 0) {
+            InvenTreePart().get(item.partId).then((var part) {
+              if (part is InvenTreePart) {
+                Navigator.push(context, MaterialPageRoute(builder: (context) => PartDisplayWidget(part)));
+              }
+            });
+          }
+        },
+      )
+    );
+
+    // Quantity information
+    tiles.add(
+      ListTile(
+        title: Text("Quantity"),
+        leading: FaIcon(FontAwesomeIcons.cubes),
+        trailing: Text("${item.quantity}"),
+      )
+    );
+
+    // Location information
+    if (item.locationName.isNotEmpty) {
+      tiles.add(
+        ListTile(
+          title: Text("Stock Location"),
+          subtitle: Text("${item.locationName}"),
+          leading: FaIcon(FontAwesomeIcons.mapMarkerAlt),
+          onTap: () {
+            if (item.locationId > 0) {
+              InvenTreeStockLocation().get(item.locationId).then((var loc) {
+                Navigator.push(context, MaterialPageRoute(
+                  builder: (context) => LocationDisplayWidget(loc)));
+              });
+            }
+          },
+        )
+      );
+    }
+
+    // Supplier part?
+    if (item.supplierPartId > 0) {
+      tiles.add(
+        ListTile(
+          title: Text("${item.supplierName}"),
+          subtitle: Text("${item.supplierSKU}"),
+          leading: FaIcon(FontAwesomeIcons.industry),
+          trailing: Image(
+            image: InvenTreeAPI().getImage(item.supplierImage),
+            height: 32,
+          ),
+          onTap: null,
+        )
+      );
+    }
+
+    if (item.link.isNotEmpty) {
+      tiles.add(
+        ListTile(
+          title: Text("${item.link}"),
+          leading: FaIcon(FontAwesomeIcons.link),
+          trailing: Text(""),
+          onTap: null,
+        )
+      );
+    }
+
+    if (item.trackingItemCount > 0) {
+      tiles.add(
+        ListTile(
+          title: Text("History"),
+          leading: FaIcon(FontAwesomeIcons.history),
+          trailing: Text("${item.trackingItemCount}"),
+          onTap: null,
+        )
+      );
+    }
+
+    if (item.notes.isNotEmpty) {
+      tiles.add(
+        ListTile(
+          title: Text("Notes"),
+          leading: FaIcon(FontAwesomeIcons.stickyNote),
+          trailing: Text(""),
+          onTap: null,
+        )
+      );
+    }
+
     return tiles;
   }