old_contents: # -*- coding: utf-8 -*-
  ##
  ## This file is part of Invenio.
  ## Copyright (C) 2014 CERN.
  ##
  ## Invenio is free software; you can redistribute it and/or
  ## modify it under the terms of the GNU General Public License as
  ## published by the Free Software Foundation; either version 2 of the
  ## License, or (at your option) any later version.
  ##
  ## Invenio is distributed in the hope that it will be useful, but
  ## WITHOUT ANY WARRANTY; without even the implied warranty of
  ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  ## General Public License for more details.
  ##
  ## You should have received a copy of the GNU General Public License
  ## along with Invenio; if not, write to the Free Software Foundation, Inc.,
  ## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
  
  from invenio.modules.upgrader.api import op
  from sqlalchemy.dialects import mysql
  
  depends_on = []
  
  
  def info():
      return "Change JSON data type from TEXT to LONGTEXT"
  
  
  def do_upgrade():
      op.alter_column(
          u'bibrec', 'additional_info',
          existing_type=mysql.TEXT(),
          type_=mysql.LONGTEXT(),
          nullable=True
      )
  
  
  def estimate():
      """  Estimate running time of upgrade in seconds (optional). """
      return 1
  
new_contents: # -*- coding: utf-8 -*-
  ##
  ## This file is part of Invenio.
  ## Copyright (C) 2014 CERN.
  ##
  ## Invenio is free software; you can redistribute it and/or
  ## modify it under the terms of the GNU General Public License as
  ## published by the Free Software Foundation; either version 2 of the
  ## License, or (at your option) any later version.
  ##
  ## Invenio is distributed in the hope that it will be useful, but
  ## WITHOUT ANY WARRANTY; without even the implied warranty of
  ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  ## General Public License for more details.
  ##
  ## You should have received a copy of the GNU General Public License
  ## along with Invenio; if not, write to the Free Software Foundation, Inc.,
  ## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
  
  from invenio.modules.upgrader.api import op
  from sqlalchemy.dialects import mysql
  from sqlalchemy.exc import OperationalError
  import sqlalchemy as sa
  
  depends_on = []
  
  
  def info():
      return "Change JSON data type from TEXT to LONGTEXT"
  
  
  def do_upgrade():
      try:
          op.alter_column(
              u'bibrec', 'additional_info',
              existing_type=mysql.TEXT(),
              type_=mysql.LONGTEXT(),
              nullable=True
          )
      except OperationalError:
          op.add_column('bibrec',
                        sa.Column('additional_info',
                        mysql.LONGTEXT(),
                        nullable=True))
  
  
  def estimate():
      """  Estimate running time of upgrade in seconds (optional). """
      return 1
  
subject: fix bibrec.additional_info upgrade script