add invoice_date field to Expense and Revenue models

src/economy/migrations/0005_auto_20190120_1532.py

@@ -0,0 +1,23 @@
+# Generated by Django 2.1.3 on 2019-01-20 14:32
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('economy', '0004_auto_20181120_1835'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='expense',
+            name='invoice_date',
+            field=models.DateTimeField(blank=True, help_text='The invoice date for this Expense. This must match the invoice date on the documentation uploaded below.', null=True),
+        ),
+        migrations.AddField(
+            model_name='revenue',
+            name='invoice_date',
+            field=models.DateTimeField(blank=True, help_text='The invoice date for this Revenue. This must match the invoice date on the documentation uploaded below.', null=True),
+        ),
+    ]

src/economy/models.py

@@ -45,6 +45,12 @@ class Revenue(CampRelatedModel, UUIDModel):
         upload_to='revenues/',
     )
 
+    invoice_date = models.DateTimeField(
+        help_text='The invoice date for this Revenue. This must match the invoice date on the documentation uploaded below.',
+        blank=True,
+        null=True,
+    )
+
     invoice_fk = models.ForeignKey(
         'shop.Invoice',
         on_delete=models.PROTECT,
@@ -162,6 +168,12 @@ class Expense(CampRelatedModel, UUIDModel):
         upload_to='expenses/',
     )
 
+    invoice_date = models.DateTimeField(
+        help_text='The invoice date for this Expense. This must match the invoice date on the documentation uploaded below.',
+        blank=True,
+        null=True,
+    )
+
     responsible_team = models.ForeignKey(
         'teams.Team',
         on_delete=models.PROTECT,