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85 lines
3.0 KiB
Python
85 lines
3.0 KiB
Python
"""
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/***************************************************************************
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Name : DB Manager
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Description : Database manager plugin for QGIS
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Date : Oct 13, 2011
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copyright : (C) 2011 by Giuseppe Sucameli
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email : brush.tyler@gmail.com
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The content of this file is based on
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- PG_Manager by Martin Dobias (GPLv2 license)
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***************************************************************************/
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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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from qgis.PyQt import uic
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from qgis.PyQt.QtCore import Qt
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from qgis.PyQt.QtWidgets import QDialog, QMessageBox, QApplication
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from qgis.utils import OverrideCursor
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from .db_plugins.plugin import DbError
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from .dlg_db_error import DlgDbError
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from .db_plugins.plugin import TableIndex
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from .gui_utils import GuiUtils
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Ui_Dialog, _ = uic.loadUiType(GuiUtils.get_ui_file_path("DlgCreateIndex.ui"))
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class DlgCreateIndex(QDialog, Ui_Dialog):
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def __init__(self, parent=None, table=None, db=None):
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QDialog.__init__(self, parent)
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self.table = table
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self.db = self.table.database() if self.table and self.table.database() else db
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self.setupUi(self)
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self.buttonBox.accepted.connect(self.createIndex)
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self.cboColumn.currentIndexChanged.connect(self.columnChanged)
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self.populateColumns()
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def populateColumns(self):
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self.cboColumn.clear()
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for fld in self.table.fields():
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self.cboColumn.addItem(fld.name)
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def columnChanged(self):
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self.editName.setText(f"idx_{self.table.name}_{self.cboColumn.currentText()}")
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def createIndex(self):
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idx = self.getIndex()
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if idx.name == "":
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QMessageBox.critical(
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self, self.tr("Error"), self.tr("Please enter a name for the index.")
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)
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return
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# now create the index
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with OverrideCursor(Qt.CursorShape.WaitCursor):
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try:
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self.table.addIndex(idx)
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except DbError as e:
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DlgDbError.showError(e, self)
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return
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self.accept()
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def getIndex(self):
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idx = TableIndex(self.table)
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idx.name = self.editName.text()
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idx.columns = []
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colname = self.cboColumn.currentText()
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for fld in self.table.fields():
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if fld.name == colname:
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idx.columns.append(fld.num)
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break
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return idx
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