add User.otp_secret, enable_otp column

app/models.py

@@ -95,6 +95,11 @@ class User(db.Model, ModelMixin, UserMixin):
 
     profile_picture_id = db.Column(db.ForeignKey(File.id), nullable=True)
 
+    otp_secret = db.Column(db.String(16), nullable=True)
+    enable_otp = db.Column(
+        db.Boolean, nullable=False, default=False, server_default="0"
+    )
+
     profile_picture = db.relationship(File)
 
     @classmethod

migrations/versions/d4e4488a0032_.py

@@ -0,0 +1,31 @@
+"""empty message
+
+Revision ID: d4e4488a0032
+Revises: 9e1b06b9df13
+Create Date: 2019-12-27 15:19:11.060497
+
+"""
+import sqlalchemy_utils
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'd4e4488a0032'
+down_revision = '9e1b06b9df13'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('users', sa.Column('enable_otp', sa.Boolean(), server_default='0', nullable=False))
+    op.add_column('users', sa.Column('otp_secret', sa.String(length=16), nullable=True))
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('users', 'otp_secret')
+    op.drop_column('users', 'enable_otp')
+    # ### end Alembic commands ###