Merge pull request #152 from inventree/more-attachments

More attachments

assets/release_notes.md

@@ -5,6 +5,8 @@
 ---
 
 - Add "quarantined" status flag for stock items
+- Extends attachment support to stock items
+- Extends attachment support to purchase orders
 
 ### 0.7.1 - May 2022
 ---

lib/inventree/model.dart

@@ -636,6 +636,9 @@ class InvenTreeAttachment extends InvenTreeModel {
 
   InvenTreeAttachment.fromJson(Map<String, dynamic> json) : super.fromJson(json);
 
+  // Override this reference field for any subclasses
+  String get REFERENCE_FIELD => "";
+
   String get attachment => (jsondata["attachment"] ?? "") as String;
 
   // Return the filename of the attachment
@@ -684,19 +687,27 @@ class InvenTreeAttachment extends InvenTreeModel {
     }
   }
 
-  Future<bool> uploadAttachment(File attachment, {String comment = "", Map<String, String> fields = const {}}) async {
+  Future<bool> uploadAttachment(File attachment, int parentId, {String comment = "", Map<String, String> fields = const {}}) async {
+
+    // Ensure that the correct reference field is set
+    Map<String, String> data = Map<String, String>.from(fields);
+
+    data[REFERENCE_FIELD] = parentId.toString();
 
     final APIResponse response = await InvenTreeAPI().uploadFile(
         URL,
         attachment,
         method: "POST",
         name: "attachment",
-        fields: fields
+        fields: data
     );
 
     return response.successful();
   }
 
+  /*
+   * Download this attachment file
+   */
   Future<void> downloadAttachment() async {
 
     await InvenTreeAPI().downloadFile(attachment);

lib/inventree/part.dart

@@ -415,13 +415,18 @@ class InvenTreePart extends InvenTreeModel {
   }
 }
 
-
+/*
+ * Class representing an attachment file against a Part object
+ */
 class InvenTreePartAttachment extends InvenTreeAttachment {
 
   InvenTreePartAttachment() : super();
 
   InvenTreePartAttachment.fromJson(Map<String, dynamic> json) : super.fromJson(json);
 
+  @override
+  String get REFERENCE_FIELD => "part";
+
   @override
   String get URL => "part/attachment/";
 

lib/inventree/purchase_order.dart

@@ -203,3 +203,24 @@ class InvenTreePOLineItem extends InvenTreeModel {
     return InvenTreePOLineItem.fromJson(json);
   }
 }
+
+/*
+ * Class representing an attachment file against a StockItem object
+ */
+class InvenTreePurchaseOrderAttachment extends InvenTreeAttachment {
+
+  InvenTreePurchaseOrderAttachment() : super();
+
+  InvenTreePurchaseOrderAttachment.fromJson(Map<String, dynamic> json) : super.fromJson(json);
+
+  @override
+  String get REFERENCE_FIELD => "order";
+
+  @override
+  String get URL => "order/po/attachment/";
+
+  @override
+  InvenTreeModel createFromJson(Map<String, dynamic> json) {
+    return InvenTreePurchaseOrderAttachment.fromJson(json);
+  }
+}

lib/inventree/stock.dart

@@ -601,6 +601,29 @@ class InvenTreeStockItem extends InvenTreeModel {
 }
 
 
+/*
+ * Class representing an attachment file against a StockItem object
+ */
+class InvenTreeStockItemAttachment extends InvenTreeAttachment {
+
+  InvenTreeStockItemAttachment() : super();
+
+  InvenTreeStockItemAttachment.fromJson(Map<String, dynamic> json) : super.fromJson(json);
+
+  @override
+  String get REFERENCE_FIELD => "stock_item";
+
+  @override
+  String get URL => "stock/attachment/";
+
+  @override
+  InvenTreeModel createFromJson(Map<String, dynamic> json) {
+    return InvenTreeStockItemAttachment.fromJson(json);
+  }
+
+}
+
+
 class InvenTreeStockLocation extends InvenTreeModel {
 
   InvenTreeStockLocation() : super();

lib/widget/attachment_widget.dart

@@ -1,33 +1,42 @@
+/*
+ * A generic widget for displaying a list of attachments.
+ *
+ * To allow use with different "types" of attachments,
+ * we pass a subclassed instance of the InvenTreeAttachment model.
+ */
+
 import "dart:io";
 
 import "package:flutter/material.dart";
 import "package:font_awesome_flutter/font_awesome_flutter.dart";
-import "package:inventree/inventree/part.dart";
+import "package:inventree/inventree/model.dart";
 import "package:inventree/widget/fields.dart";
-import "package:inventree/widget/refreshable_state.dart";
 import "package:inventree/widget/snacks.dart";
-
-import "package:inventree/api.dart";
+import "package:inventree/widget/refreshable_state.dart";
 import "package:inventree/l10.dart";
 
-class PartAttachmentsWidget extends StatefulWidget {
+class AttachmentWidget extends StatefulWidget {
 
-  const PartAttachmentsWidget(this.part, {Key? key}) : super(key: key);
+  const AttachmentWidget(this.attachment, this.referenceId, this.hasUploadPermission) : super();
 
-  final InvenTreePart part;
+  final InvenTreeAttachment attachment;
+  final int referenceId;
+  final bool hasUploadPermission;
 
   @override
-  _PartAttachmentDisplayState createState() => _PartAttachmentDisplayState(part);
+  _AttachmentWidgetState createState() => _AttachmentWidgetState(attachment, referenceId, hasUploadPermission);
 }
 
 
-class _PartAttachmentDisplayState extends RefreshableState<PartAttachmentsWidget> {
+class _AttachmentWidgetState extends RefreshableState<AttachmentWidget> {
 
-  _PartAttachmentDisplayState(this.part);
+  _AttachmentWidgetState(this.attachment, this.referenceId, this.hasUploadPermission);
 
-  final InvenTreePart part;
+  final InvenTreeAttachment attachment;
+  final int referenceId;
+  final bool hasUploadPermission;
 
-  List<InvenTreePartAttachment> attachments = [];
+  List<InvenTreeAttachment> attachments = [];
 
   @override
   String getAppBarTitle(BuildContext context) => L10().attachments;
@@ -37,8 +46,7 @@ class _PartAttachmentDisplayState extends RefreshableState<PartAttachmentsWidget
 
     List<Widget> actions = [];
 
-    if (InvenTreeAPI().checkPermission("part", "change")) {
-
+    if (hasUploadPermission) {
       // File upload
       actions.add(
           IconButton(
@@ -58,12 +66,8 @@ class _PartAttachmentDisplayState extends RefreshableState<PartAttachmentsWidget
   }
 
   Future<void> upload(File file) async {
-    final bool result = await InvenTreePartAttachment().uploadAttachment(
-      file,
-      fields: {
-        "part": "${part.pk}"
-      }
-    );
+
+    final bool result = await attachment.uploadAttachment(file, referenceId);
 
     if (result) {
       showSnackIcon(L10().uploadSuccess, success: true);
@@ -77,21 +81,20 @@ class _PartAttachmentDisplayState extends RefreshableState<PartAttachmentsWidget
   @override
   Future<void> request(BuildContext context) async {
 
-    await InvenTreePartAttachment().list(
+    await attachment.list(
       filters: {
-        "part": "${part.pk}"
+        attachment.REFERENCE_FIELD: referenceId.toString()
       }
     ).then((var results) {
 
       attachments.clear();
 
       for (var result in results) {
-        if (result is InvenTreePartAttachment) {
+        if (result is InvenTreeAttachment) {
           attachments.add(result);
         }
       }
     });
-
   }
 
   @override
@@ -133,7 +136,5 @@ class _PartAttachmentDisplayState extends RefreshableState<PartAttachmentsWidget
     }
 
     return tiles;
-
   }
-
 }

lib/widget/part_detail.dart

@@ -6,7 +6,7 @@ import "package:inventree/app_colors.dart";
 import "package:inventree/inventree/stock.dart";
 import "package:inventree/l10.dart";
 import "package:inventree/helpers.dart";
-import "package:inventree/widget/part_attachments_widget.dart";
+import "package:inventree/widget/attachment_widget.dart";
 import "package:inventree/widget/part_notes.dart";
 import "package:inventree/widget/progress.dart";
 import "package:inventree/inventree/part.dart";
@@ -39,6 +39,8 @@ class _PartDisplayState extends RefreshableState<PartDetailWidget> {
 
   InvenTreePart? parentPart;
 
+  int attachmentCount = 0;
+
   @override
   String getAppBarTitle(BuildContext context) => L10().partDetails;
 
@@ -110,6 +112,12 @@ class _PartDisplayState extends RefreshableState<PartDetailWidget> {
     }
 
     await part.getTestTemplates();
+
+    attachmentCount = await InvenTreePartAttachment().count(
+      filters: {
+        "part": part.pk.toString()
+      }
+    );
   }
 
   Future <void> _toggleStar() async {
@@ -405,12 +413,15 @@ class _PartDisplayState extends RefreshableState<PartDetailWidget> {
       ListTile(
         title: Text(L10().attachments),
         leading: FaIcon(FontAwesomeIcons.fileAlt, color: COLOR_CLICK),
-        trailing: Text(""),
+        trailing: attachmentCount > 0 ? Text(attachmentCount.toString()) : null,
         onTap: () {
           Navigator.push(
             context,
             MaterialPageRoute(
-              builder: (context) => PartAttachmentsWidget(part)
+              builder: (context) => AttachmentWidget(
+                  InvenTreePartAttachment(),
+                  part.pk,
+                  InvenTreeAPI().checkPermission("part", "change"))
             )
           );
         },

lib/widget/purchase_order_detail.dart

@@ -9,6 +9,7 @@ import "package:inventree/app_colors.dart";
 import "package:inventree/helpers.dart";
 import "package:inventree/inventree/company.dart";
 import "package:inventree/inventree/purchase_order.dart";
+import "package:inventree/widget/attachment_widget.dart";
 import "package:inventree/widget/company_detail.dart";
 import "package:inventree/widget/refreshable_state.dart";
 import "package:inventree/l10.dart";
@@ -37,6 +38,8 @@ class _PurchaseOrderDetailState extends RefreshableState<PurchaseOrderDetailWidg
 
   int completedLines = 0;
 
+  int attachmentCount = 0;
+
   String _poPrefix = "";
 
   @override
@@ -77,6 +80,12 @@ class _PurchaseOrderDetailState extends RefreshableState<PurchaseOrderDetailWidg
         completedLines += 1;
       }
     }
+
+    attachmentCount = await InvenTreePurchaseOrderAttachment().count(
+      filters: {
+        "order": order.pk.toString()
+      }
+    );
   }
 
   Future <void> editOrder(BuildContext context) async {
@@ -177,6 +186,26 @@ class _PurchaseOrderDetailState extends RefreshableState<PurchaseOrderDetailWidg
       ));
     }
 
+    // Attachments
+    tiles.add(
+        ListTile(
+          title: Text(L10().attachments),
+          leading: FaIcon(FontAwesomeIcons.fileAlt, color: COLOR_CLICK),
+          trailing: attachmentCount > 0 ? Text(attachmentCount.toString()) : null,
+          onTap: () {
+            Navigator.push(
+                context,
+                MaterialPageRoute(
+                    builder: (context) => AttachmentWidget(
+                        InvenTreePurchaseOrderAttachment(),
+                        order.pk,
+                        InvenTreeAPI().checkPermission("purchase_order", "change"))
+                )
+            );
+          },
+        )
+    );
+
     return tiles;
 
   }

lib/widget/stock_detail.dart

@@ -7,6 +7,7 @@ import "package:inventree/barcode.dart";
 import "package:inventree/inventree/stock.dart";
 import "package:inventree/inventree/part.dart";
 import "package:inventree/widget/dialogs.dart";
+import "package:inventree/widget/attachment_widget.dart";
 import "package:inventree/widget/location_display.dart";
 import "package:inventree/widget/part_detail.dart";
 import "package:inventree/widget/progress.dart";
@@ -94,6 +95,8 @@ class _StockItemDisplayState extends RefreshableState<StockDetailWidget> {
   // Part object
   InvenTreePart? part;
 
+  int attachmentCount = 0;
+
   @override
   Future<void> onBuild(BuildContext context) async {
 
@@ -126,6 +129,12 @@ class _StockItemDisplayState extends RefreshableState<StockDetailWidget> {
       });
     });
 
+    attachmentCount = await InvenTreeStockItemAttachment().count(
+      filters: {
+        "stock_item": item.pk.toString()
+      }
+    );
+
     // Request information on labels available for this stock item
     if (InvenTreeAPI().pluginsEnabled()) {
       _getLabels();
@@ -694,6 +703,25 @@ class _StockItemDisplayState extends RefreshableState<StockDetailWidget> {
       )
     );
 
+    tiles.add(
+        ListTile(
+          title: Text(L10().attachments),
+          leading: FaIcon(FontAwesomeIcons.fileAlt, color: COLOR_CLICK),
+          trailing: attachmentCount > 0 ? Text(attachmentCount.toString()) : null,
+          onTap: () {
+            Navigator.push(
+                context,
+                MaterialPageRoute(
+                    builder: (context) => AttachmentWidget(
+                        InvenTreeStockItemAttachment(),
+                        item.pk,
+                        InvenTreeAPI().checkPermission("stock", "change"))
+                )
+            );
+          },
+        )
+    );
+
     return tiles;
   }