add User.disable_import column

app/models.py

@@ -407,6 +407,11 @@ class User(Base, ModelMixin, UserMixin, PasswordOracle):
         "subdomain_quota", sa.Integer, default=5, nullable=False, server_default="5"
     )
 
+    # user can use import to import too many aliases
+    disable_import = sa.Column(
+        sa.Boolean, default=False, nullable=False, server_default="0"
+    )
+
     @property
     def directory_quota(self):
         return min(

migrations/versions/2021_111810_e7d7ebcea26c_.py

@@ -0,0 +1,29 @@
+"""empty message
+
+Revision ID: e7d7ebcea26c
+Revises: b8fd175c084a
+Create Date: 2021-11-18 10:35:05.122715
+
+"""
+import sqlalchemy_utils
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'e7d7ebcea26c'
+down_revision = 'b8fd175c084a'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('users', sa.Column('disable_import', sa.Boolean(), server_default='0', nullable=False))
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('users', 'disable_import')
+    # ### end Alembic commands ###