Renders Pod Destriptor File earlier

Currently, the PDF is rendered 'on-demand' every time you
visit the booking detail page. This change renders the pdf once
and saves it in the booking model. Advantages:
- saves computation of re-rendering pdf constantly
- fixes issue where pdf fails to render after booking expires

Change-Id: I58d20fadce088d78ebd22f1d6f67cab371823542
Signed-off-by: Parker Berberian <pberberian@iol.unh.edu>

1 files changed, 18 insertions, 0 deletions

diff --git a/dashboard/src/booking/migrations/0002_booking_pdf.py b/dashboard/src/booking/migrations/0002_booking_pdf.py
new file mode 100644
index 0000000..53232c9
--- /dev/null
+++ b/dashboard/src/booking/migrations/0002_booking_pdf.py
@@ -0,0 +1,18 @@
+# Generated by Django 2.1 on 2018-11-09 16:09
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('booking', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='booking',
+            name='pdf',
+            field=models.TextField(blank=True, default=''),
+        ),
+    ]