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# -*- coding: utf-8 -*-
"""
/***************************************************************************
Name : DB Manager
Description : Database manager plugin for QGIS
Date : Oct 13, 2011
copyright : (C) 2011 by Giuseppe Sucameli
email : brush.tyler@gmail.com
The content of this file is based on
- PG_Manager by Martin Dobias (GPLv2 license)
***************************************************************************/
/***************************************************************************
* *
* 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 qgis.PyQt.QtCore import Qt
from qgis.PyQt.QtWidgets import QDialog, QApplication
from .db_plugins.plugin import DbError
from .dlg_db_error import DlgDbError
from .db_plugins.plugin import TableConstraint
from .ui.ui_DlgCreateConstraint import Ui_DbManagerDlgCreateConstraint as Ui_Dialog
class DlgCreateConstraint(QDialog, Ui_Dialog):
def __init__(self, parent=None, table=None, db=None):
QDialog.__init__(self, parent)
self.table = table
self.db = self.table.database() if self.table and self.table.database() else db
self.setupUi(self)
self.buttonBox.accepted.connect(self.createConstraint)
self.populateColumns()
def populateColumns(self):
self.cboColumn.clear()
for fld in self.table.fields():
self.cboColumn.addItem(fld.name)
def createConstraint(self):
constr = self.getConstraint()
# now create the constraint
QApplication.setOverrideCursor(Qt.WaitCursor)
try:
self.table.addConstraint(constr)
except DbError as e:
DlgDbError.showError(e, self)
return
finally:
QApplication.restoreOverrideCursor()
self.accept()
def getConstraint(self):
constr = TableConstraint(self.table)
constr.name = u""
constr.type = TableConstraint.TypePrimaryKey if self.radPrimaryKey.isChecked() else TableConstraint.TypeUnique
constr.columns = []
column = self.cboColumn.currentText()
for fld in self.table.fields():
if fld.name == column:
constr.columns.append(fld.num)
break
return constr
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