Add a "sales_order" reference to the Build model

- If a build order is made to fulfil a sales order
- Add sales_order filtering to the Build API
- Pass initial information through to the BuildCreate view

InvenTree/order/templates/order/sales_order_detail.html

@@ -6,6 +6,9 @@
 {% load static %}
 
 {% block details %}
+
+{% include "order/so_tabs.html" with tab='details' %}
+
 <hr>
 
 <h4>{% trans "Sales Order Items" %}</h4>
@@ -45,6 +48,7 @@ $("#so-lines-table").inventreeTable({
         part_detail: true,
         allocations: true,
     },
+    uniqueId: 'pk',
     url: "{% url 'api-so-line-list' %}",
     onPostBody: setupCallbacks,
     detailViewByClick: true,
@@ -242,12 +246,28 @@ function setupCallbacks() {
     });
 
     table.find(".button-build").click(function() {
+
         var pk = $(this).attr('pk');
 
+        // Extract the row data from the table!
+        var idx = $(this).closest('tr').attr('data-index');
+
+        var row = table.bootstrapTable('getData')[idx];
+
+        console.log('Row ' + idx + ' - ' + row.pk + ', ' + row.quantity);
+
+        var quantity = 1;
+
+        if (row.allocated < row.quantity) {
+            quantity = row.quantity - row.allocated;
+        }
+
         launchModalForm(`/build/new/`, {
             follow: true,
             data: {
                 part: pk,
+                sales_order: {{ order.id }},
+                quantity: quantity,
             },
         });
     });