From e05a024a794b4e03299d229b73c1564f6d0fd322 Mon Sep 17 00:00:00 2001
From: Danny Robson <danny@nerdcruft.net>
Date: Wed, 20 May 2020 12:56:18 +1000
Subject: [PATCH] Add created_at field to tasks

---
 .../ac2bd309d20c_add_created_at_to_tasks.py   | 34 +++++++++++++++++++
 src/pyelephant.py                             |  4 +--
 2 files changed, 36 insertions(+), 2 deletions(-)
 create mode 100644 alembic/versions/ac2bd309d20c_add_created_at_to_tasks.py

diff --git a/alembic/versions/ac2bd309d20c_add_created_at_to_tasks.py b/alembic/versions/ac2bd309d20c_add_created_at_to_tasks.py
new file mode 100644
index 0000000..d107291
--- /dev/null
+++ b/alembic/versions/ac2bd309d20c_add_created_at_to_tasks.py
@@ -0,0 +1,34 @@
+"""add created_at to tasks
+
+Revision ID: ac2bd309d20c
+Revises: 40867bd0dcc8
+Create Date: 2020-05-20 12:36:53.685254
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'ac2bd309d20c'
+down_revision = '40867bd0dcc8'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # Requires batching for non-constant default under SQLite.
+    with op.batch_alter_table('tasks', recreate='always') as batch:
+        batch.add_column(
+            sa.Column(
+                'created_at',
+                sa.DateTime,
+                server_default=sa.func.current_timestamp(),
+                nullable=False
+            )
+        )
+
+
+def downgrade():
+    with op.batch_alter_table('tasks') as tasks:
+        tasks.drop_column('created_at')
diff --git a/src/pyelephant.py b/src/pyelephant.py
index 74965cf..e0ab8f7 100755
--- a/src/pyelephant.py
+++ b/src/pyelephant.py
@@ -22,8 +22,8 @@ def rm(session: sa.orm.Session, index: int):
 
 # -----------------------------------------------------------------------------
 def ls(session: sa.orm.Session):
-    for i in session.query(Task):
-        print(i.id, i.title)
+    for i in session.query(Task).order_by(Task.created_at):
+        print(i.id, i.created_at, i.title)
 
 
 ###############################################################################