Add LifetimeCoupon model and User.lifetime column

app/models.py

@@ -119,6 +119,9 @@ class User(db.Model, ModelMixin, UserMixin):
         db.Boolean, nullable=False, default=False, server_default="0"
     )
 
+    # some users could have lifetime premium
+    lifetime = db.Column(db.Boolean, default=False, nullable=False, server_default="0")
+
     profile_picture = db.relationship(File)
 
     @classmethod
@@ -225,7 +228,6 @@ class User(db.Model, ModelMixin, UserMixin):
         else:
             return sub
 
-
     def verified_custom_domains(self):
         return CustomDomain.query.filter_by(user_id=self.id, verified=True).all()
 
@@ -715,3 +717,8 @@ class CustomDomain(db.Model, ModelMixin):
 
     def __repr__(self):
         return f"<Custom Domain {self.domain}>"
+
+
+class LifetimeCoupon(db.Model, ModelMixin):
+    code = db.Column(db.String(128), nullable=False, unique=True)
+    nb_used = db.Column(db.Integer, nullable=False)

migrations/versions/2020_010120_d29cca963221_.py

@@ -0,0 +1,39 @@
+"""empty message
+
+Revision ID: d29cca963221
+Revises: 01f808f15b2e
+Create Date: 2020-01-01 20:01:51.861329
+
+"""
+import sqlalchemy_utils
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'd29cca963221'
+down_revision = '01f808f15b2e'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('lifetime_coupon',
+    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('created_at', sqlalchemy_utils.types.arrow.ArrowType(), nullable=False),
+    sa.Column('updated_at', sqlalchemy_utils.types.arrow.ArrowType(), nullable=True),
+    sa.Column('code', sa.String(length=128), nullable=False),
+    sa.Column('nb_used', sa.Integer(), nullable=False),
+    sa.PrimaryKeyConstraint('id'),
+    sa.UniqueConstraint('code')
+    )
+    op.add_column('users', sa.Column('lifetime', sa.Boolean(), server_default='0', nullable=False))
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('users', 'lifetime')
+    op.drop_table('lifetime_coupon')
+    # ### end Alembic commands ###