Form / view for creating a new purchase order

InvenTree/order/forms.py

@@ -29,7 +29,6 @@ class EditPurchaseOrderForm(HelperForm):
             'supplier',
             'description',
             'URL',
-            'status',
             'notes'
         ]
 

InvenTree/order/migrations/0009_auto_20190606_2133.py

@@ -0,0 +1,18 @@
+# Generated by Django 2.2 on 2019-06-06 11:33
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('order', '0008_auto_20190605_2140'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='purchaseorder',
+            name='description',
+            field=models.CharField(help_text='Order description', max_length=250),
+        ),
+    ]

InvenTree/order/models.py

@@ -43,7 +43,7 @@ class Order(models.Model):
 
     reference = models.CharField(unique=True, max_length=64, blank=False, help_text=_('Order reference'))
 
-    description = models.CharField(max_length=250, blank=True, help_text=_('Order description'))
+    description = models.CharField(max_length=250, help_text=_('Order description'))
 
     URL = models.URLField(blank=True, help_text=_('Link to external page'))
 

InvenTree/order/templates/order/purchase_orders.html

@@ -8,8 +8,30 @@ InvenTree | Purchase Orders
 
 {% block content %}
 
-<h4>Purchase Orders</h4>
+<div class='row'>
+    <div class='col-sm-6'>
+        <h3>Purchase Orders</h3>
+    </div>
+    <div class='col-sm-6'>
+        <div class='btn-group' style='float: right;'>
+            <button class='btn btn-primary' type='button' id='po-create' title='Create new purchase order'>New Purchase Order</button>
+        </div>
+    </div>
+</div>
 
 {% include "order/po_table.html" %}
 
 {% endblock %}
+
+{% block js_ready %}
+{{ block.super }}
+
+$("#po-create").click(function() {
+    launchModalForm("{% url 'purchase-order-create' %}",
+        {
+            reload: true,
+        }
+    );
+});
+
+{% endblock %}

InvenTree/order/urls.py

@@ -24,6 +24,8 @@ po_line_urls = [
 
 purchase_order_urls = [
 
+    url(r'^new/', views.PurchaseOrderCreate.as_view(), name='purchase-order-create'),
+
     # Display detail view for a single purchase order
     url(r'^(?P<pk>\d+)/', include(purchase_order_detail_urls)),
 

InvenTree/order/views.py

@@ -24,6 +24,14 @@ class PurchaseOrderIndex(ListView):
     template_name = 'order/purchase_orders.html'
     context_object_name = 'orders'
 
+    def get_queryset(self):
+        """ Retrieve the list of purchase orders,
+        ensure that the most recent ones are returned first. """
+
+        queryset = PurchaseOrder.objects.all().order_by('-creation_date')
+
+        return queryset
+
     def get_context_data(self, **kwargs):
         ctx = super().get_context_data(**kwargs)
 
@@ -47,6 +55,21 @@ class PurchaseOrderDetail(DetailView):
         return ctx
 
 
+class PurchaseOrderCreate(AjaxCreateView):
+    """ View for creating a new PurchaseOrder object using a modal form """
+
+    model = PurchaseOrder
+    ajax_form_title = "Create Purchase Order"
+    form_class = order_forms.EditPurchaseOrderForm
+
+    def get_initial(self):
+        initials = super().get_initial().copy()
+
+        initials['status'] = OrderStatus.PENDING
+
+        return initials 
+
+
 class PurchaseOrderEdit(AjaxUpdateView):
     """ View for editing a PurchaseOrder using a modal form """
 
@@ -60,6 +83,7 @@ class PurchaseOrderEdit(AjaxUpdateView):
 
         order = self.get_object()
 
+        # Prevent user from editing supplier if there are already lines in the order
         if order.lines.count() > 0:
             form.fields['supplier'].widget = HiddenInput()