QGIS/python/plugins/processing/admintools/PostGISExecuteSQL.py
2013-08-20 09:22:03 +02:00

75 lines
3.1 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 processing.core.GeoAlgorithm import GeoAlgorithm
__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__ = '$Format:%H$'
import os
from qgis.core import *
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from processing.parameters.ParameterString import ParameterString
from processing.admintools import postgis_utils
from processing.core.GeoAlgorithmExecutionException import GeoAlgorithmExecutionException
class PostGISExecuteSQL(GeoAlgorithm):
DATABASE = "DATABASE"
SQL = "SQL"
def getIcon(self):
return QIcon(os.path.dirname(__file__) + "/../images/postgis.png")
def processAlgorithm(self, progress):
connection = self.getParameterValue(self.DATABASE)
settings = QSettings()
mySettings = "/PostgreSQL/connections/"+ connection
try:
database = settings.value(mySettings+"/database")
username = settings.value(mySettings+"/username")
host = settings.value(mySettings+"/host")
port = settings.value(mySettings+"/port", type = int)
password = settings.value(mySettings+"/password")
except Exception, e:
raise GeoAlgorithmExecutionException("Wrong database connection name: " + connection)
try:
self.db = postgis_utils.GeoDB(host=host, port=port, dbname=database, user=username, passwd=password)
except postgis_utils.DbError, e:
raise GeoAlgorithmExecutionException("Couldn't connect to database:\n"+e.message)
sql = self.getParameterValue(self.SQL).replace("\n", " ")
try:
self.db._exec_sql_and_commit(str(sql))
except postgis_utils.DbError, e:
raise GeoAlgorithmExecutionException("Error executing SQL:\n"+e.message)
def defineCharacteristics(self):
self.name = "PostGIS execute SQL"
self.group = "PostGIS management tools"
self.addParameter(ParameterString(self.DATABASE, "Database"))
self.addParameter(ParameterString(self.SQL, "SQL query", "", True))