notify-admin-861 add preferred timezone

app/models.py

@@ -81,6 +81,7 @@ class User(db.Model):
     id = db.Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
     name = db.Column(db.String, nullable=False, index=True, unique=False)
     email_address = db.Column(db.String(255), nullable=False, index=True, unique=True)
+    preferred_timezone = db.Column(db.Text, nullable=True, index=False, unique=False)
     created_at = db.Column(
         db.DateTime,
         index=False,

migrations/versions/0405_add_preferred_timezone.py

@@ -0,0 +1,21 @@
+"""
+
+Revision ID: 0405_add_preferred_timezone
+Revises: 0404_expire_invites
+
+"""
+from alembic import op
+from flask import current_app
+import sqlalchemy as sa
+
+
+down_revision = "0404_expire_invites"
+revision = "0405_add_preferred_timezone"
+
+
+def upgrade():
+    op.execute("ALTER TABLE users ADD COLUMN preferred_timezone text")
+
+
+def downgrade():
+    op.execute("ALTER TABLE users DROP COLUMN preferred_timezone text")