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# Source code for camelot.view.controls.editors.abstractmanytooneeditor

    #  ============================================================================
    #
    #  Copyright (C) 2007-2011 Conceptive Engineering bvba. All rights reserved.
    #  www.conceptive.be / project-camelot@conceptive.be
    #
    #  This file is part of the Camelot Library.
    #
    #  This file may be used under the terms of the GNU General Public
    #  License version 2.0 as published by the Free Software Foundation
    #  and appearing in the file license.txt included in the packaging of
    #  this file.  Please review this information to ensure GNU
    #  General Public Licensing requirements will be met.
    #
    #  If you are unsure which license is appropriate for your use, please
    #  visit www.python-camelot.com or contact project-camelot@conceptive.be
    #
    #  This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
    #  WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
    #
    #  For use of this library in commercial applications, please contact
    #  project-camelot@conceptive.be
    #
    #  ============================================================================

    from PyQt4 import QtGui
    from PyQt4 import QtCore

    from camelot.core.utils import ugettext as _

    class AbstractManyToOneEditor(object):
        """Helper functions for implementing a `ManyToOneEditor`, to be used in the
        `ManyToOneEditor` and in the `ManyToManyEditor`"""

        def createSelectView(self):
            #search_text = unicode(self.search_input.text())
            search_text = ''
            admin = self.admin
            query = self.admin.entity.query

            class SelectDialog(QtGui.QDialog):

                entity_selected_signal = QtCore.pyqtSignal(object)

                def __init__(self, parent):
                    super(SelectDialog, self).__init__(None)
                    layout = QtGui.QVBoxLayout()
                    layout.setContentsMargins( 0, 0, 0, 0)
                    layout.setSpacing(0)
                    self.setWindowTitle( _('Select %s') % admin.get_verbose_name())
                    self.select = admin.create_select_view(
                        query,
                        parent=parent,
                        search_text=search_text
                    )
                    layout.addWidget(self.select)
                    self.setLayout(layout)
                    self.select.entity_selected_signal.connect( self.selectEntity )

                @QtCore.pyqtSlot(object)
                def selectEntity(self, entity_instance_getter):
                    self.entity_selected_signal.emit( entity_instance_getter )
                    self.close()

            self.selectDialog = SelectDialog(self)
            self.selectDialog.entity_selected_signal.connect( self.selectEntity )
            #self.selectDialog.show()
            self.selectDialog.exec_()

        def selectEntity(self, entity_instance_getter):
            #raise Exception('Not implemented')
            raise NotImplementedError

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