Add API form support for date fields

lib/api_form.dart

@@ -3,6 +3,7 @@ import 'dart:io';
 
 import 'package:font_awesome_flutter/font_awesome_flutter.dart';
 import 'package:dropdown_search/dropdown_search.dart';
+import 'package:date_field/date_field.dart';
 
 import 'package:inventree/api.dart';
 import 'package:inventree/app_colors.dart';
@@ -167,6 +168,8 @@ class APIFormField {
       case "file upload":
       case "image upload":
         return _constructFileField();
+      case "date":
+        return _constructDateField();
       default:
         return ListTile(
           title: Text(
@@ -179,6 +182,30 @@ class APIFormField {
     }
   }
 
+  // Field for displaying and selecting dates
+  Widget _constructDateField() {
+
+    return DateTimeFormField(
+      mode: DateTimeFieldPickerMode.date,
+      decoration: InputDecoration(
+        helperText: helpText,
+        helperStyle: _helperStyle(),
+        labelText: label,
+        labelStyle: _labelStyle(),
+      ),
+      initialValue: DateTime.tryParse(value ?? ""),
+      autovalidateMode: AutovalidateMode.always,
+      validator: (e) {
+        // TODO
+      },
+      onDateSelected: (DateTime dt) {
+        data['value'] = dt.toString().split(" ").first;
+      },
+    );
+
+  }
+
+
   // Field for selecting and uploading files
   Widget _constructFileField() {
 
@@ -418,6 +445,13 @@ class APIFormField {
             style: TextStyle(fontWeight: selected ? FontWeight.bold : FontWeight.normal),
           ) : null,
         );
+      case "owner":
+        String name = item["name"] ?? "";
+        bool isGroup = (item["label"] ?? "") == "group";
+        return ListTile(
+          title: Text(name),
+          leading: FaIcon(isGroup ? FontAwesomeIcons.users : FontAwesomeIcons.user),
+        );
       default:
         return ListTile(
           title: Text(

lib/inventree/stock.dart

@@ -223,6 +223,8 @@ class InvenTreeStockItem extends InvenTreeModel {
     return pp.isNotEmpty && pp.trim() != "-";
   }
 
+  int get purchaseOrderId => jsondata['purchase_order'] ?? -1;
+
   int get trackingItemCount => (jsondata['tracking_items'] ?? 0) as int;
 
   // Date of last update

pubspec.lock

@@ -127,6 +127,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.3"
+  date_field:
+    dependency: "direct main"
+    description:
+      name: date_field
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.2"
   device_info_plus:
     dependency: "direct main"
     description:

pubspec.yaml

@@ -31,6 +31,7 @@ dependencies:
   sentry_flutter: 5.0.0                   # Error reporting
   image_picker: ^0.8.3                    # Select or take photos
   file_picker: ^4.0.0                     # Select files from the device
+  date_field: ^2.1.2                      # Date / time picker
   url_launcher: 6.0.9                     # Open link in system browser
   open_file: 3.2.1                        # Open local files
   flutter_markdown: ^0.6.2                # Rendering markdown