Add order status field

- Display status field in PurchaseOrder list view

InvenTree/order/admin.py

@@ -12,6 +12,7 @@ class PurchaseOrderAdmin(admin.ModelAdmin):
     list_display = (
         'reference',
         'supplier',
+        'status',
         'description',
         'creation_date'
     )

InvenTree/order/migrations/0004_purchaseorder_status.py

@@ -0,0 +1,18 @@
+# Generated by Django 2.2 on 2019-06-04 12:52
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('order', '0003_auto_20190604_2226'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='purchaseorder',
+            name='status',
+            field=models.PositiveIntegerField(choices=[(10, 'Pending'), (20, 'Placed'), (30, 'Complete'), (40, 'Cancelled'), (50, 'Lost'), (60, 'Returned')], default=10, help_text='Order status'),
+        ),
+    ]

InvenTree/order/models.py

@@ -8,6 +8,8 @@ from part.models import Part
 from company.models import Company
 from stock.models import StockItem
 
+from InvenTree.status_codes import OrderStatus
+
 
 class Order(models.Model):
     """ Abstract model for an order.
@@ -26,13 +28,17 @@ class Order(models.Model):
 
     """
 
-    # Order status codes
-    PENDING = 10  # Order is pending (not yet placed)
-    PLACED = 20  # Order has been placed
-    RECEIVED = 30  # Order has been received
-    CANCELLED = 40  # Order was cancelled
-    LOST = 50  # Order was lost
-    RETURNED = 60 # Order was returned
+    ORDER_PREFIX = ""
+
+    def __str__(self):
+        el = []
+
+        if self.ORDER_PREFIX:
+            el.append(self.ORDER_PREFIX)
+
+        el.append(self.reference)
+
+        return " ".join(el)
 
     class Meta:
         abstract = True
@@ -45,6 +51,9 @@ class Order(models.Model):
 
     creation_date = models.DateField(auto_now=True, editable=False)
 
+    status = models.PositiveIntegerField(default=OrderStatus.PENDING, choices=OrderStatus.items(),
+                                         help_text='Order status')
+
     created_by = models.ForeignKey(User,
                                    on_delete=models.SET_NULL,
                                    blank=True, null=True,
@@ -64,6 +73,8 @@ class PurchaseOrder(Order):
 
     """
 
+    ORDER_PREFIX = "PO"
+
     supplier = models.ForeignKey(Company, on_delete=models.CASCADE,
                                 limit_choices_to={
                                     'is_supplier': True,

InvenTree/order/templates/order/order_status.html

@@ -0,0 +1,13 @@
+{% if order.status == order.PENDING %}
+<span class='label label-info'>
+{% elif order.status == order.PLACED %}
+<span class='label label-primary'>
+{% elif order.status == order.COMPLETE %}
+<span class='label label-success'>
+{% elif order.status == order.CANCELLED or order.status == order.RETURNED %}
+<span class='label label-warning'>
+{% else %}
+<span class='label label-danger'>
+{% endif %}
+{{ order.get_status_display }}
+</span>