Add actions to issue or cancel purchase orders (#313)

lib/inventree/purchase_order.dart

@@ -93,6 +93,8 @@ class InvenTreePurchaseOrder extends InvenTreeModel {
 
   bool get isOpen => status == PO_STATUS_PENDING || status == PO_STATUS_PLACED;
 
+  bool get isPending => status == PO_STATUS_PENDING;
+
   bool get isPlaced => status == PO_STATUS_PLACED;
 
   bool get isFailed => status == PO_STATUS_CANCELLED || status == PO_STATUS_LOST || status == PO_STATUS_RETURNED;
@@ -132,6 +134,25 @@ class InvenTreePurchaseOrder extends InvenTreeModel {
   InvenTreeModel createFromJson(Map<String, dynamic> json) {
     return InvenTreePurchaseOrder.fromJson(json);
   }
+
+  /// Mark this order as "placed" / "issued"
+  Future<void> issueOrder() async {
+    // Order can only be placed when the order is 'pending'
+    if (!isPending) {
+      return;
+    }
+
+    await api.post("${url}issue/", expectedStatusCode: 201);
+  }
+
+  /// Mark this order as "cancelled"
+  Future<void> cancelOrder() async {
+    if (!isOpen) {
+      return;
+    }
+
+    await api.post("${url}cancel/", expectedStatusCode: 201);
+  }
 }
 
 class InvenTreePOLineItem extends InvenTreeModel {

lib/l10n/app_en.arb

@@ -156,6 +156,9 @@
     "description": "Cancel"
   },
 
+  "cancelOrder": "Cancel Order",
+  "@cancelOrder": {},
+
   "category": "Category",
   "@category": {},
 
@@ -479,9 +482,15 @@
   "invalidUsernamePassword": "Invalid username / password combination",
   "@invalidUsernamePassword": {},
 
+  "issue": "Issue",
+  "@issue": {},
+
   "issueDate": "Issue Date",
   "@issueDate": {},
 
+  "issueOrder": "Issue Order",
+  "@issueOrder": {},
+
   "itemInLocation": "Item already in location",
   "@itemInLocation": {},
 

lib/widget/dialogs.dart

@@ -26,7 +26,7 @@ Future<void> confirmationDialog(String title, String text, {Color? color, IconDa
           title: Text(title, style: TextStyle(color: color)),
           leading: FaIcon(icon, color: color),
         ),
-        content: Text(text),
+        content: text.isEmpty ? Text(text) : null,
         actions: [
           TextButton(
             child: Text(_reject),

lib/widget/purchase_order_detail.dart

@@ -1,5 +1,7 @@
 import "package:flutter/material.dart";
+import "package:flutter_speed_dial/flutter_speed_dial.dart";
 import "package:font_awesome_flutter/font_awesome_flutter.dart";
+import "package:inventree/widget/dialogs.dart";
 import "package:one_context/one_context.dart";
 
 import "package:inventree/api.dart";
@@ -62,6 +64,72 @@ class _PurchaseOrderDetailState extends RefreshableState<PurchaseOrderDetailWidg
     return actions;
   }
 
+  @override
+  List<SpeedDialChild> actionButtons(BuildContext context) {
+    List<SpeedDialChild> actions = [];
+
+    if (api.checkPermission("purchase_order", "add")) {
+      if (order.isPending) {
+        actions.add(
+          SpeedDialChild(
+            child: FaIcon(FontAwesomeIcons.paperPlane, color: Colors.blue),
+            label: L10().issueOrder,
+            onTap: () async {
+              _issueOrder(context);
+            }
+          )
+        );
+      }
+
+      if (order.isOpen) {
+        actions.add(
+          SpeedDialChild(
+            child: FaIcon(FontAwesomeIcons.circleXmark, color: Colors.red),
+            label: L10().cancelOrder,
+            onTap: () async {
+              _cancelOrder(context);
+            }
+          )
+        );
+      }
+    }
+
+    return actions;
+  }
+
+  /// Issue this order
+  Future<void> _issueOrder(BuildContext context) async {
+
+    confirmationDialog(
+      L10().issueOrder, "",
+      icon: FontAwesomeIcons.paperPlane,
+      color: Colors.blue,
+      acceptText: L10().issue,
+      onAccept: () async {
+        await order.issueOrder().then((dynamic) {
+          refresh(context);
+        });
+      }
+    );
+  }
+
+  /// Cancel this order
+  Future<void> _cancelOrder(BuildContext context) async {
+
+    confirmationDialog(
+      L10().cancelOrder, "",
+      icon: FontAwesomeIcons.circleXmark,
+      color: Colors.red,
+      acceptText: L10().cancel,
+      onAccept: () async {
+        await order.cancelOrder().then((dynamic) {
+          print("callback");
+          refresh(context);
+        });
+      }
+    );
+  }
+
   @override
   Future<void> request(BuildContext context) async {
     await order.reload();