content: """admin users [1a9a9d2a836d].
  
  Revision ID: 1a9a9d2a836d
  Revises: 0.55.5
  Create Date: 2024-03-04 15:48:16.580871
  
  """
  
  import sqlalchemy as sa
  import sqlmodel
  from alembic import op
  
  # revision identifiers, used by Alembic.
  revision = "1a9a9d2a836d"
  down_revision = "0.55.5"
  branch_labels = None
  depends_on = None
  
  
  def upgrade() -> None:
      """Upgrade database schema and/or data, creating a new revision."""
      # ### commands auto generated by Alembic - please adjust! ###
      bind = op.get_bind()
      session = sqlmodel.Session(bind=bind)
  
      with op.batch_alter_table("user", schema=None) as batch_op:
          batch_op.add_column(
              sa.Column(
                  "is_admin",
                  sa.Boolean(),
                  nullable=False,
                  server_default=sa.sql.expression.false(),
              )
          )
  
      # during migration we treat all users as admin for backward compatibility
      # this should be adjusted by server admins after upgrade
      session.execute(
          sa.text(
              """
              UPDATE user
              SET is_admin = true
              WHERE NOT is_service_account AND external_user_id IS NULL
              """
          )
      )
      # ### end Alembic commands ###
  
  
  def downgrade() -> None:
      """Downgrade database schema and/or data back to the previous revision."""
      # ### commands auto generated by Alembic - please adjust! ###
      with op.batch_alter_table("user", schema=None) as batch_op:
          batch_op.drop_column("is_admin")
  
      # ### end Alembic commands ###
  