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2628c480c5
Prevent changes to files that weren't changed between releases. This eases review of the changes between releases significantly.
71 lines
2.4 KiB
Python
71 lines
2.4 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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TruncateTable.py
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-----------------------
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Date : January 2017
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Copyright : (C) 2017 by Nyall Dawson
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Email : nyall dot dawson 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__ = 'Nyall Dawson'
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__date__ = 'January 2017'
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__copyright__ = '(C) 2017, Nyall Dawson'
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from qgis.core import (QgsProcessingAlgorithm,
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QgsProcessingParameterVectorLayer,
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QgsProcessingOutputVectorLayer,
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QgsProcessingException)
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from processing.algs.qgis.QgisAlgorithm import QgisAlgorithm
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class TruncateTable(QgisAlgorithm):
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INPUT = 'INPUT'
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OUTPUT = 'OUTPUT'
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def tags(self):
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return self.tr('empty,delete,layer,clear,features').split(',')
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def group(self):
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return self.tr('Vector general')
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def groupId(self):
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return 'vectorgeneral'
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def __init__(self):
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super().__init__()
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def initAlgorithm(self, config=None):
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self.addParameter(QgsProcessingParameterVectorLayer(self.INPUT,
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self.tr('Input Layer')))
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self.addOutput(QgsProcessingOutputVectorLayer(self.OUTPUT, self.tr('Truncated layer')))
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def flags(self):
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return super().flags() | QgsProcessingAlgorithm.FlagNoThreading
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def name(self):
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return 'truncatetable'
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def displayName(self):
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return self.tr('Truncate table')
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def processAlgorithm(self, parameters, context, feedback):
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layer = self.parameterAsVectorLayer(parameters, self.INPUT, context)
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provider = layer.dataProvider()
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if not provider.truncate():
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raise QgsProcessingException(
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self.tr('Could not truncate table.'))
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return {self.OUTPUT: layer.id()}
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