QGIS/python/plugins/processing/algs/qgis/PostGISExecuteSQL.py
2017-03-05 10:21:24 +01:00

60 lines
2.4 KiB
Python

# -*- coding: utf-8 -*-
"""
***************************************************************************
PostGISExecuteSQL.py
---------------------
Date : October 2012
Copyright : (C) 2012 by Victor Olaya and Carterix Geomatics
Email : volayaf at gmail dot com
***************************************************************************
* *
* This program 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. *
* *
***************************************************************************
"""
from builtins import str
__author__ = 'Victor Olaya, Carterix Geomatics'
__date__ = 'October 2012'
__copyright__ = '(C) 2012, Victor Olaya, Carterix Geomatics'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
from processing.core.GeoAlgorithm import GeoAlgorithm
from processing.core.GeoAlgorithmExecutionException import GeoAlgorithmExecutionException
from processing.core.parameters import ParameterString
from processing.tools import postgis
class PostGISExecuteSQL(GeoAlgorithm):
DATABASE = 'DATABASE'
SQL = 'SQL'
def defineCharacteristics(self):
self.name, self.i18n_name = self.trAlgorithm('PostGIS execute SQL')
self.group, self.i18n_group = self.trAlgorithm('Database')
self.addParameter(ParameterString(
self.DATABASE,
self.tr('Database'),
metadata={
'widget_wrapper': {
'class': 'processing.gui.wrappers_postgis.ConnectionWidgetWrapper'}}))
self.addParameter(ParameterString(self.SQL, self.tr('SQL query'), '', True))
def processAlgorithm(self, feedback):
connection = self.getParameterValue(self.DATABASE)
self.db = postgis.GeoDB.from_name(connection)
sql = self.getParameterValue(self.SQL).replace('\n', ' ')
try:
self.db._exec_sql_and_commit(str(sql))
except postgis.DbError as e:
raise GeoAlgorithmExecutionException(
self.tr('Error executing SQL:\n{0}').format(str(e)))