Stock display (#379)

* Display stock quantity more prominently

* Cleanup search widget

* Update for stock_detail widget

* More tweaks

* Change bottom bar icon

* Display boolean parameters appropriately

* Adds ability to edit part parameters

* Bump icon size a bit

* Improvements to filter options

- Allow filtering by "option" type
- To start with, filter stock by status code

* Remove debug message

* Remove getTriState method

- No longer needed
- Remove associated unit tests

* Adjust filters based on server API version

* Muted colors

lib/inventree/part.dart

@@ -133,12 +133,29 @@ class InvenTreePartParameter extends InvenTreeModel {
   @override
   String get URL => "part/parameter/";
 
+  @override
+  List<String> get rolesRequired => ["part"];
+
   @override
   InvenTreeModel createFromJson(Map<String, dynamic> json) => InvenTreePartParameter.fromJson(json);
 
   @override
   Map<String, dynamic> formFields() {
-    return {};
+
+    Map<String, dynamic> fields = {
+      "header": {
+        "type": "string",
+        "read_only": true,
+        "label": name,
+        "help_text": description,
+        "value": "",
+      },
+      "data": {
+        "type": "string",
+      }
+    };
+
+    return fields;
   }
 
   @override
@@ -160,7 +177,11 @@ class InvenTreePartParameter extends InvenTreeModel {
     return v;
   }
 
+  bool get as_bool => value.toLowerCase() == "true";
+
   String get units => getString("units", subKey: "template_detail");
+  
+  bool get is_checkbox => getBool("checkbox", subKey: "template_detail", backup: false);
 }
 
 /*

lib/inventree/status_codes.dart

@@ -23,6 +23,26 @@ class InvenTreeStatusCode {
   // Internal status code data loaded from server
   Map<String, dynamic> data = {};
 
+  /*
+   * Construct a list of "choices" suitable for a form
+   */
+  List<dynamic> get choices {
+    List<dynamic> _choices = [];
+
+    for (String key in data.keys) {
+      dynamic _entry = data[key];
+
+      if (_entry is Map<String, dynamic>) {
+        _choices.add({
+          "value": _entry["key"],
+          "display_name": _entry["label"]
+        });
+      }
+    }
+
+    return _choices;
+  }
+
   // Load status code information from the server
   Future<void> load({bool forceReload = false}) async {
 

lib/inventree/stock.dart

@@ -399,7 +399,7 @@ class InvenTreeStockItem extends InvenTreeModel {
 
     double get quantity => getDouble("quantity");
 
-    String quantityString({bool includeUnits = false}){
+    String quantityString({bool includeUnits = true}){
 
       String q = "";
 
@@ -467,7 +467,13 @@ class InvenTreeStockItem extends InvenTreeModel {
       if (serialNumber.isNotEmpty) {
         return "SN: $serialNumber";
       } else {
-        return simpleNumberString(quantity);
+        String q = simpleNumberString(quantity);
+
+        if (units.isNotEmpty) {
+          q += " ${units}";
+        }
+
+        return q;
       }
     }