Fixes for JSON API

- Set content type
- Stringify JSON data
- Finish API to stocktake multiple parts

InvenTree/static/script/inventree/api.js

@@ -23,6 +23,7 @@ function inventreeGet(url, filters={}, options={}) {
         type: 'GET',
         data: filters,
         dataType: 'json',
+        contentType: 'application/json',
         success: function(response) {
             console.log('Success GET data at ' + url);
             if (options.success) {
@@ -62,8 +63,9 @@ function inventreeUpdate(url, data={}, options={}) {
         },
         url: url,
         type: method,
-        data: data,
+        data: JSON.stringify(data),
         dataType: 'json',
+        contentType: 'application/json',
         success: function(response, status) {
             response['_status_code'] = status;
             console.log('UPDATE object to ' + url + ' - result = ' + status);

InvenTree/static/script/inventree/stock.js

@@ -16,7 +16,7 @@ function moveStockItems(items, options) {
         inventreeUpdate("/api/stock/move/",
                         {
                             location: location,
-                            parts: parts
+                            'parts[]': parts
                         },
                         {
                             success: function(response) {
@@ -97,8 +97,67 @@ function countStockItems(items, options) {
         return;
     }
 
+    var tbl = "<table class='table table-striped table-condensed' id='stocktake-table'></table>";
+
     openModal(modal);
-    modalSetTitle(modal, 'Stocktake');
+    modalSetTitle(modal, 'Stocktake ' + items.length + ' items');
+
+    $(modal).find('.modal-form-content').html(tbl);
+
+    $(modal).find('#stocktake-table').bootstrapTable({
+        data: items,
+        columns: [
+            {
+                checkbox: true,
+            },
+            {
+                field: 'part.name',
+                title: 'Part',
+            },
+            {
+                field: 'location.name',
+                title: 'Location',
+            },
+            {
+                field: 'quantity',
+                title: 'Quantity',
+            }
+        ]
+    });
+
+    $(modal).on('click', '#modal-form-submit', function() {
+        var selections = $(modal).find('#stocktake-table').bootstrapTable('getSelections');
+
+        var stocktake = [];
+
+        console.log('Performing stocktake on ' + selections.length + ' items');
+
+        for (i = 0; i<selections.length; i++) {
+            var item = {
+                pk: selections[i].pk,
+                quantity: selections[i].quantity,
+            };
+
+            stocktake.push(item);
+        }
+
+        inventreeUpdate("/api/stock/stocktake/",
+                        {
+                            'items[]': stocktake,
+                        },
+                        {
+                            success: function(response) {
+                                closeModal(modal);
+                                if (options.success) {
+                                    options.success();
+                                }
+                            },
+                            error: function(error) {
+                                alert(error);
+                            },
+                            method: 'post',
+                        });
+    });
 }
 
 function deleteStockItems(items, options) {

InvenTree/stock/api.py

@@ -59,12 +59,13 @@ class StockStocktake(APIView):
 
     def post(self, request, *args, **kwargs):
 
-        data = request.data
+        if not 'items[]' in request.data:
+            raise ValidationError({'items[]:' 'Request must contain list of items'})
 
         items = []
 
         # Ensure each entry is valid
-        for entry in data:
+        for entry in request.data['items[]']:
             if not 'pk' in entry:
                 raise ValidationError({'pk': 'Each entry must contain pk field'})
             if not 'quantity' in entry:
@@ -80,6 +81,9 @@ class StockStocktake(APIView):
             except ValueError:
                 raise ValidationError({'quantity': 'Quantity must be an integer'})
 
+            if item['quantity'] < 0:
+                raise ValidationError({'quantity': 'Quantity must be >= 0'})
+
             items.append(item)
 
         for item in items:
@@ -111,7 +115,7 @@ class StockMove(APIView):
         if not u'parts[]' in data:
             raise ValidationError({'parts[]': 'Parts list must be specified'})
 
-        part_list = data.getlist(u'parts[]')
+        part_list = data.get(u'parts[]')
 
         parts = []