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# -*- coding: utf-8 -*-
#
#
# Authors: Guewen Baconnier
# Copyright 2015 Camptocamp SA
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
#
import base64
from StringIO import StringIO
try:
import unicodecsv
except ImportError:
unicodecsv = None
from openerp.osv import orm, fields
from openerp.tools.translate import _
class SQLViewCSVPreview(orm.TransientModel):
_name = 'sql.view.csv.preview'
_description = 'SQL View CSV Preview'
_columns = {
'limit': fields.integer(string='Limit',
help='Number of records. 0 means infinite.'),
'data': fields.binary('CSV', readonly=True),
'filename': fields.char('File Name', readonly=True),
}
_defaults = {
'filename': 'csv-preview.csv',
'limit': 100,
}
def _query(self, cr, uid, form, sql_view, context=None):
view_name = sql_view.complete_sql_name
query = "SELECT * FROM {view_name} "
if form.limit:
query += "LIMIT {limit}"
return query.format(view_name=view_name, limit=form.limit)
def export_csv(self, cr, uid, ids, context=None):
if context is None:
return
sql_view_ids = context.get('active_ids', [])
assert len(ids) == 1, "1 wizard ID expected"
assert len(sql_view_ids) == 1, "1 active ID expected"
form = self.browse(cr, uid, ids[0], context=context)
sql_view = self.pool['sql.view'].browse(cr, uid, sql_view_ids[0],
context=context)
query = self._query(cr, uid, form, sql_view, context=context)
cr.execute(query)
headers = [desc[0] for desc in cr.description]
records = cr.fetchall()
filedata = StringIO()
if not unicodecsv:
raise orm.except_orm(
_('Error'), _('Please install the unicodecsv library'))
try:
writer = unicodecsv.writer(filedata, encoding='utf-8')
writer.writerow(headers)
writer.writerows(records)
form.write({'data': base64.encodestring(filedata.getvalue())})
finally:
filedata.close()
return {
'type': 'ir.actions.act_window',
'res_model': self._name,
'view_mode': 'form',
'view_type': 'form',
'res_id': ids[0],
'views': [(False, 'form')],
'target': 'new',
}