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73 lines
3.1 KiB
Python
73 lines
3.1 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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PostGISExecuteSQL.py
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---------------------
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Date : October 2012
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Copyright : (C) 2012 by Victor Olaya and Carterix Geomatics
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Email : volayaf at gmail dot com
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************
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"""
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__author__ = 'Victor Olaya, Carterix Geomatics'
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__date__ = 'October 2012'
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__copyright__ = '(C) 2012, Victor Olaya, Carterix Geomatics'
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# This will get replaced with a git SHA1 when you do a git archive
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__revision__ = '$Format:%H$'
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from PyQt4.QtCore import QSettings
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from processing.core.GeoAlgorithm import GeoAlgorithm
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from processing.core.GeoAlgorithmExecutionException import GeoAlgorithmExecutionException
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from processing.core.parameters import ParameterString
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from processing.algs.qgis import postgis_utils
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class PostGISExecuteSQL(GeoAlgorithm):
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DATABASE = 'DATABASE'
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SQL = 'SQL'
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def processAlgorithm(self, progress):
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connection = self.getParameterValue(self.DATABASE)
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settings = QSettings()
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mySettings = '/PostgreSQL/connections/' + connection
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try:
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database = settings.value(mySettings + '/database')
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username = settings.value(mySettings + '/username')
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host = settings.value(mySettings + '/host')
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port = settings.value(mySettings + '/port', type=int)
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password = settings.value(mySettings + '/password')
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except Exception as e:
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raise GeoAlgorithmExecutionException(
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self.tr('Wrong database connection name: %s' % connection))
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try:
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self.db = postgis_utils.GeoDB(host=host, port=port,
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dbname=database, user=username, passwd=password)
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except postgis_utils.DbError as e:
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raise GeoAlgorithmExecutionException(
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self.tr("Couldn't connect to database:\n%s" % e.message))
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sql = self.getParameterValue(self.SQL).replace('\n', ' ')
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try:
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self.db._exec_sql_and_commit(unicode(sql))
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except postgis_utils.DbError as e:
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raise GeoAlgorithmExecutionException(
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self.tr('Error executing SQL:\n%s' % e.message))
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def defineCharacteristics(self):
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self.name, self.i18n_name = self.trAlgorithm('PostGIS execute SQL')
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self.group, self.i18n_group = self.trAlgorithm('Database')
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self.addParameter(ParameterString(self.DATABASE, self.tr('Database')))
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self.addParameter(ParameterString(self.SQL, self.tr('SQL query'), '', True))
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