add contact.is_cc column

app/models.py

@@ -729,6 +729,9 @@ class Contact(db.Model, ModelMixin):
     # it has the prefix "reply+" to distinguish with other email
     reply_email = db.Column(db.String(512), nullable=False)
 
+    # whether a contact is created via CC
+    is_cc = db.Column(db.Boolean, nullable=False, default=False, server_default="0")
+
     alias = db.relationship(Alias, backref="contacts")
 
     def website_send_to(self):
@@ -757,6 +760,9 @@ class Contact(db.Model, ModelMixin):
             .first()
         )
 
+    def __repr__(self):
+        return f"<Contact {self.id} {self.website_email} {self.alias_id}>"
+
 
 class EmailLog(db.Model, ModelMixin):
     user_id = db.Column(db.ForeignKey(User.id, ondelete="cascade"), nullable=False)

migrations/versions/2020_032223_67c61eead8d2_.py

@@ -0,0 +1,29 @@
+"""empty message
+
+Revision ID: 67c61eead8d2
+Revises: 541ce53ab6e9
+Create Date: 2020-03-22 23:58:02.672562
+
+"""
+import sqlalchemy_utils
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '67c61eead8d2'
+down_revision = '541ce53ab6e9'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('contact', sa.Column('is_cc', sa.Boolean(), server_default='0', nullable=False))
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('contact', 'is_cc')
+    # ### end Alembic commands ###