mirror of
https://github.com/qgis/QGIS.git
synced 2025-02-27 00:33:48 -05:00
2628c480c5
Prevent changes to files that weren't changed between releases. This eases review of the changes between releases significantly.
118 lines
4.7 KiB
Python
118 lines
4.7 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
***************************************************************************
|
|
ExecuteSql.py
|
|
---------------------
|
|
Date : November 2012
|
|
Copyright : (C) 2012 by Victor Olaya
|
|
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. *
|
|
* *
|
|
***************************************************************************
|
|
"""
|
|
|
|
__author__ = 'Victor Olaya'
|
|
__date__ = 'November 2012'
|
|
__copyright__ = '(C) 2012, Victor Olaya'
|
|
|
|
|
|
from qgis.core import (QgsProcessingException,
|
|
QgsProcessingParameterDefinition,
|
|
QgsProcessingParameterFeatureSource,
|
|
QgsProcessingParameterEnum,
|
|
QgsProcessingParameterString,
|
|
QgsProcessingParameterVectorDestination)
|
|
from processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
|
|
from processing.algs.gdal.GdalUtils import GdalUtils
|
|
|
|
|
|
class ExecuteSql(GdalAlgorithm):
|
|
|
|
INPUT = 'INPUT'
|
|
SQL = 'SQL'
|
|
DIALECT = 'DIALECT'
|
|
OPTIONS = 'OPTIONS'
|
|
OUTPUT = 'OUTPUT'
|
|
|
|
def __init__(self):
|
|
super().__init__()
|
|
|
|
def initAlgorithm(self, config=None):
|
|
self.dialects = ((self.tr('None'), ''),
|
|
(self.tr('OGR SQL'), 'ogrsql'),
|
|
(self.tr('SQLite'), 'sqlite'))
|
|
|
|
self.addParameter(QgsProcessingParameterFeatureSource(self.INPUT,
|
|
self.tr('Input layer')))
|
|
self.addParameter(QgsProcessingParameterString(self.SQL,
|
|
self.tr('SQL expression'),
|
|
defaultValue=''))
|
|
self.addParameter(QgsProcessingParameterEnum(self.DIALECT,
|
|
self.tr('SQL dialect'),
|
|
options=[i[0] for i in self.dialects],
|
|
allowMultiple=False,
|
|
defaultValue=0))
|
|
|
|
options_param = QgsProcessingParameterString(self.OPTIONS,
|
|
self.tr('Additional creation options'),
|
|
defaultValue='',
|
|
optional=True)
|
|
options_param.setFlags(options_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
|
|
self.addParameter(options_param)
|
|
|
|
self.addParameter(QgsProcessingParameterVectorDestination(self.OUTPUT,
|
|
self.tr('SQL result')))
|
|
|
|
def name(self):
|
|
return 'executesql'
|
|
|
|
def displayName(self):
|
|
return self.tr('Execute SQL')
|
|
|
|
def group(self):
|
|
return self.tr('Vector miscellaneous')
|
|
|
|
def groupId(self):
|
|
return 'vectormiscellaneous'
|
|
|
|
def commandName(self):
|
|
return "ogr2ogr"
|
|
|
|
def getConsoleCommands(self, parameters, context, feedback, executing=True):
|
|
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback, executing)
|
|
sql = self.parameterAsString(parameters, self.SQL, context)
|
|
options = self.parameterAsString(parameters, self.OPTIONS, context)
|
|
outFile = self.parameterAsOutputLayer(parameters, self.OUTPUT, context)
|
|
self.setOutputValue(self.OUTPUT, outFile)
|
|
|
|
output, outputFormat = GdalUtils.ogrConnectionStringAndFormat(outFile, context)
|
|
|
|
if not sql:
|
|
raise QgsProcessingException(
|
|
self.tr('Empty SQL. Please enter valid SQL expression and try again.'))
|
|
|
|
arguments = []
|
|
arguments.append(output)
|
|
arguments.append(ogrLayer)
|
|
arguments.append('-sql')
|
|
arguments.append(sql)
|
|
|
|
dialect = self.dialects[self.parameterAsEnum(parameters, self.DIALECT, context)][1]
|
|
if dialect:
|
|
arguments.append('-dialect')
|
|
arguments.append(dialect)
|
|
|
|
if options:
|
|
arguments.append(options)
|
|
|
|
if outputFormat:
|
|
arguments.append('-f {}'.format(outputFormat))
|
|
|
|
return [self.commandName(), GdalUtils.escapeAndJoin(arguments)]
|