Example #1
0
def get_model(db):
    """
    Create and populate the model used for all tblSTREET operations.
    
    :param db: Open QSqlDatabase object
    :return model: QSqlRelationalTableModel instance
    """
    # Assign names for easier access to column IDs
    (PK_UID, USRN, VERSION_NO, CURRENCY_FLAG, STREET_REF_TYPE, DESCRIPTION,
     ENTRY_DATE, UPDATE_DATE, START_DATE, AUTHORITY, CLOSURE_DATE, START_XREF,
     START_YREF, END_XREF, END_YREF, TOLERANCE, STREET_SUB_TYPE, STREET_STATE,
     STATE_DATE, STREET_CLASS, LOC_REF, COUNTY_REF, TOWN_REF, UPDATED_BY,
     CLOSED_BY, MIN_X, MIN_Y, MAX_X, MAX_Y, DESCRIPTION_ALT) = range(30)
    # Define model settings
    model = QSqlRelationalTableModel(db=db)
    model.setTable("tblSTREET")
    model.setFilter("currency_flag = 0")  # Only get most recent
    model.setSort(USRN, Qt.SortOrder())  # Order by usrn
    model.setEditStrategy(QSqlTableModel.OnManualSubmit)

    # Set up relational links to other tables
    model.setRelation(
        STREET_REF_TYPE,
        QSqlRelation("tlkpSTREET_REF_TYPE", "street_ref", "description"))
    model.setRelation(LOC_REF, QSqlRelation("tlkpLOCALITY", "loc_ref", "name"))
    model.setRelation(TOWN_REF, QSqlRelation("tlkpTOWN", "town_ref", "name"))
    model.setRelation(COUNTY_REF,
                      QSqlRelation("tlkpCOUNTY", "county_ref", "name"))
    model.setRelation(
        STREET_STATE,
        QSqlRelation("tlkpSTREET_STATE", "state_ref", "state_desc"))
    model.setRelation(
        STREET_CLASS,
        QSqlRelation("tlkpSTREET_CLASS", "class_ref", "street_classification"))
    model.setRelation(
        AUTHORITY, QSqlRelation("tlkpAUTHORITY", "auth_code", "description"))

    # Populate the model with data from the table
    model.select()
    # The following is required if table has more than 256 rows
    while model.canFetchMore():
        model.fetchMore()

    # Populate relational tables (which may have more than 256 rows)
    for relational_column in [
            STREET_REF_TYPE, LOC_REF, TOWN_REF, COUNTY_REF, STREET_STATE,
            STREET_CLASS, AUTHORITY
    ]:
        relation_model = model.relationModel(relational_column)
        while relation_model.canFetchMore():
            relation_model.fetchMore()

    return model
Example #2
0
class MainWindow(QMainWindow, magazzino_ui.Ui_MainWindow):

    FIRST, PREV, NEXT, LAST = range(4)
    Clipboard = [] # lista di oggetti

    def __init__(self, parent=None):
        super(MainWindow, self).__init__(parent)

        self.setupUi(self)
        self.setupMenu()
        self.restoreWinSettings()

        self.editindex = None
        self.filename = None
        self.db = QSqlDatabase.addDatabase("QSQLITE")

        self.loadInitialFile()
        self.setupUiSignals()

    def keyPressEvent(self, event):
        if event.key() == Qt.Key_Down:
            self.addDettRecord()
        else:
            QMainWindow.keyPressEvent(self, event)

    def creaStrutturaDB(self):
        query = QSqlQuery()
        if not ("magamaster" in self.db.tables()):
            if not query.exec_("""CREATE TABLE magamaster (
                                id INTEGER PRIMARY KEY AUTOINCREMENT 
                                UNIQUE NOT NULL,
                                scaff VARCHAR(10) NOT NULL)"""):
                QMessageBox.warning(self, "Magazzino",
                                QString("Creazione tabella fallita!"))
                return False

        if not ("magaslave" in self.db.tables()):
            if not query.exec_("""CREATE TABLE magaslave (
                                id INTEGER PRIMARY KEY AUTOINCREMENT UNIQUE NOT NULL,
                                datains DATE NOT NULL,
                                abbi VARCHAR(50),
                                angro VARCHAR(50),
                                desc VARCHAR(100),
                                qt INTEGER NOT NULL DEFAULT '1',
                                imp DOUBLE NOT NULL DEFAULT '0.0',
                                equiv VARCHAR(100),
                                mmid INTEGER NOT NULL,
                                fatt VARCHAR(50),
                                note VARCHAR(200),
                                FOREIGN KEY (mmid) REFERENCES magamaster)"""):
                QMessageBox.warning(self, "Magazzino",
                                QString("Creazione tabella fallita!"))
                return False
            QMessageBox.information(self, "Magazzino",
                                QString("Database Creato!"))

        return True

    def loadFile(self, fname=None):
        if fname is None:
            return
        if self.db.isOpen():
            self.db.close()
        self.db.setDatabaseName(QString(fname))
        if not self.db.open():
            QMessageBox.warning(self, "Magazzino",
                                QString("Database Error: %1")
                                .arg(self.db.lastError().text()))
        else:
            if not self.creaStrutturaDB():
                return
            self.filename = unicode(fname)
            self.setWindowTitle("Gestione Magazzino - %s" % self.filename)
            self.setupModels()
            self.setupMappers()
            self.setupTables()
            #self.setupItmSignals()
            self.restoreTablesSettings()
            self.mmUpdate()


    def loadInitialFile(self):
        settings = QSettings()
        fname = unicode(settings.value("Settings/lastFile").toString())
        if fname and QFile.exists(fname):
            self.loadFile(fname)


    def openFile(self):
        dir = os.path.dirname(self.filename) \
                if self.filename is not None else "."
        fname = QFileDialog.getOpenFileName(self,
                    "Gestione Magazzino - Scegli database",
                    dir, "*.db")
        if fname:
            self.loadFile(fname)


    def newFile(self):
        dir = os.path.dirname(self.filename) \
                if self.filename is not None else "."
        fname = QFileDialog.getSaveFileName(self,
                    "Gestione Magazzino - Scegli database",
                    dir, "*.db")
        if fname:
            self.loadFile(fname)

    def setupMenu(self):
        # AboutBox
        self.connect(self.actionA_bout, SIGNAL("triggered()"),
                    self.showAboutBox)
        # FileNew
        self.connect(self.action_New_File, SIGNAL("triggered()"),
                    self.newFile)

        # FileLoad
        self.connect(self.action_Load_File, SIGNAL("triggered()"),
                    self.openFile)


    def showAboutBox(self):
        dlg = aboutmaga.AboutBox(self)
        dlg.exec_()


    def printInventory(self):
        '''
            Print Inventory
        '''
        if not self.db.isOpen():
            self.statusbar.showMessage(
                "Database non aperto...",
                5000)
            return
        querygrp = QSqlQuery()
        querydett = QSqlQuery()

        querygrp.exec_("SELECT abbi,qt,imp,sum(qt*imp) "
                    "FROM magaslave GROUP BY abbi")
        querydett.prepare("SELECT datains,abbi,angro,desc,qt,imp "
                        "FROM magaslave WHERE abbi = :abbi AND "
                        "qt > 0 ORDER BY datains")

        from reportlab.pdfgen.canvas import Canvas
        from reportlab.lib.styles import getSampleStyleSheet, ParagraphStyle
        from reportlab.lib.units import cm
        from reportlab.lib.enums import TA_LEFT,TA_RIGHT,TA_CENTER
        from reportlab.platypus import Spacer, SimpleDocTemplate 
        from reportlab.platypus import Table, TableStyle, Paragraph
        from reportlab.rl_config import defaultPageSize
        from reportlab.lib import colors

        PAGE_WIDTH, PAGE_HEIGHT=defaultPageSize
        styles = getSampleStyleSheet()
        styleN = styles['Normal']
        styleH = styles['Heading1']
        styleH.alignment=TA_CENTER
        Elements = []
        #add some flowables
        p=Paragraph
        ps=ParagraphStyle

        Title = unicode(self.prtTitleLineEdit.text())
        Year = unicode(self.prtDateLineEdit.text())
        Author = "Stefano Zamprogno"
        URL = "http://www.zamprogno.it/"
        email = "*****@*****.**"

        pageinfo = "%s / %s / %s" % (Author, email, Title)

        def myFirstPage(canvas, doc):
            canvas.saveState()
            canvas.setStrokeColorRGB(0.50,0.50,0.50)
            canvas.setLineWidth(10)
            canvas.line(45,72,45,PAGE_HEIGHT-72)
            #canvas.setFont('Times-Bold',16)
            #canvas.drawCentredString(3*cm, 1.5*cm,Title)
            canvas.setFont('Times-Roman',9)
            canvas.drawString(3*cm, 1.5*cm, "First Page / %s" % pageinfo)
            canvas.restoreState()

        def myLaterPages(canvas, doc):
            canvas.saveState()
            canvas.setStrokeColorRGB(0.50,0.50,0.50)
            canvas.setLineWidth(5)
            canvas.line(45,72,45,PAGE_HEIGHT-72)
            canvas.setFont('Times-Roman',9)
            canvas.drawString(3*cm, 1.5*cm, "Page %d %s" % (doc.page, pageinfo))
            canvas.restoreState()

        Elements.append(Paragraph(Title, styleH))
        Elements.append(Paragraph(Year,styleN))
        Elements.append(Spacer(0.5*cm, 0.5*cm))

        tot=0
        while querygrp.next():
            tot += querygrp.value(3).toDouble()[0]
            querydett.bindValue(":abbi", QVariant(querygrp.value(0).toString()))
            querydett.exec_()
            data = [['Abbi', 'Angro', 'Descrizione', 'Qt', 'Imp'],]
            while querydett.next():
                data.append([ p(unicode(querydett.value(1).toString()),
                                                ps(name='Normal')),
                                p(unicode(querydett.value(2).toString()),
                                                ps(name='Normal')),
                                p(unicode(querydett.value(3).toString()),
                                                ps(name='Normal')),
                                querydett.value(4).toInt()[0],
                                unicode("%.2f" %
                                        querydett.value(5).toDouble()[0])])
            data.append([None, None,
                        unicode("GRUPPO '%s'" % querygrp.value(0).toString()),
                        unicode("Subtotale:"),
                        unicode("€ %.2f" % querygrp.value(3).toDouble()[0])])
            Elements.append(Table(data,repeatRows=1,
                                style=(['LINEBELOW', (3,-2), (-1,-2),
                                            1, colors.black],
                                        ['LINEBELOW', (0,0), (-1,0),
                                            1, colors.black],
                                        ['ALIGN', (1,0), (3,-1),'CENTER'],
                                        ['ALIGN', (4,0), (-1,0),'RIGHT'],
                                        ['VALIGN', (0,0), (-1,-1), 'TOP'],
                                        ['ALIGN', (4,0), (-1,-1), 'RIGHT'],
#                                        ['TEXTCOLOR', (0,0), (-1,0),
#                                                colors.red],
                                        ['BACKGROUND',(0,0),(-1,0),
                                                colors.lightgrey],
                                        ['GRID',(0,0),(-1,-1), 0.2,
                                                colors.black],
                                        ['FONT', (0, 0), (-1, 0),
                                                'Helvetica-Bold', 10],
                                        ['FONT', (3, -1), (3, -1),
                                                'Helvetica-Bold', 10])))
            Elements.append(Spacer(0.5*cm, 0.5*cm))

        Elements.append(Paragraph("<para align=right><b>TOTALE GENERALE:"
                                    "€ %.2f</b></para>" % tot, styleN))

        doc = SimpleDocTemplate(os.path.join(os.path.dirname(__file__),
                        'mydoc.pdf'))
        doc.build(Elements,onFirstPage=myFirstPage, onLaterPages=myLaterPages)

        subprocess.Popen(['gnome-open',os.path.join(os.path.dirname(__file__),
                        'mydoc.pdf')])

    def setupMappers(self):
        '''
            Initialize all the application mappers
        '''
        self.mapper = QDataWidgetMapper(self)
        self.mapper.setModel(self.mModel)
        self.mapper.addMapping(self.scaffLineEdit, SCAFF)
        self.mapper.setSubmitPolicy(QDataWidgetMapper.ManualSubmit)
        self.mapper.toFirst()

    def setupTables(self):
        """
            Initialize all the application tablesview
        """
        self.sTableView.setModel(self.sModel)
        self.sTableView.setItemDelegate(MSDelegate(self))
        self.sTableView.setColumnHidden(ID, True)
        self.sTableView.setColumnHidden(MMID, True)
        self.sTableView.setWordWrap(True)
        self.sTableView.resizeRowsToContents()
        self.sTableView.setAlternatingRowColors(True)
        self.sItmSelModel = QItemSelectionModel(self.sModel)
        self.sTableView.setSelectionModel(self.sItmSelModel)
        self.sTableView.setSelectionBehavior(QTableView.SelectRows)
        #self.sTableView.setTabKeyNavigation(True)


        self.fTableView.setModel(self.fModel)
        self.fTableView.setColumnHidden(ID, True)
        self.fTableView.setWordWrap(True)
        self.fTableView.resizeRowsToContents()
        self.fTableView.setAlternatingRowColors(True)
        self.fItmSelModel = QItemSelectionModel(self.fModel)
        self.fTableView.setSelectionModel(self.fItmSelModel)

    def setupModels(self):
        """
            Initialize all the application models
        """
        # setup slaveModel
        self.sModel = ssModel(self)
        self.sModel.setTable(QString("magaslave"))
        self.sModel.setHeaderData(ID, Qt.Horizontal, QVariant("ID"))
        self.sModel.setHeaderData(DATAINS, Qt.Horizontal, QVariant("DataIns"))
        self.sModel.setHeaderData(ABBI, Qt.Horizontal, QVariant("Abbi"))
        self.sModel.setHeaderData(ANGRO, Qt.Horizontal, QVariant("Angro"))
        self.sModel.setHeaderData(DESC, Qt.Horizontal, QVariant("Desc"))
        self.sModel.setHeaderData(QT, Qt.Horizontal, QVariant("Qt"))
        self.sModel.setHeaderData(IMP, Qt.Horizontal, QVariant("Imp"))
        self.sModel.setHeaderData(EQUIV, Qt.Horizontal, QVariant("Equiv"))
        self.sModel.setHeaderData(MMID, Qt.Horizontal, QVariant("ScaffId"))
        self.sModel.setHeaderData(FATT, Qt.Horizontal, QVariant("Fatt"))
        self.sModel.setHeaderData(NOTE, Qt.Horizontal, QVariant("Note"))
        self.sModel.setSort(DATAINS, Qt.AscendingOrder)
        self.sModel.setEditStrategy(QSqlTableModel.OnRowChange)
        self.sModel.select()

        # setup masterModel
        self.mModel = QSqlTableModel(self)
        self.mModel.setTable(QString("magamaster"))
        self.mModel.setSort(SCAFF, Qt.AscendingOrder)
        self.mModel.setHeaderData(ID, Qt.Horizontal, QVariant("ID"))
        self.mModel.setHeaderData(SCAFF, Qt.Horizontal, QVariant("Scaff"))
        self.mModel.select()

        # setup findModel
        self.fModel = QSqlRelationalTableModel(self)
        self.fModel.setTable(QString("magaslave"))
        self.fModel.setHeaderData(ID, Qt.Horizontal, QVariant("ID"))
        self.fModel.setHeaderData(DATAINS, Qt.Horizontal, QVariant("DataIns"))
        self.fModel.setHeaderData(ABBI, Qt.Horizontal, QVariant("Abbi"))
        self.fModel.setHeaderData(ANGRO, Qt.Horizontal, QVariant("Angro"))
        self.fModel.setHeaderData(DESC, Qt.Horizontal, QVariant("Desc"))
        self.fModel.setHeaderData(QT, Qt.Horizontal, QVariant("Qt"))
        self.fModel.setHeaderData(IMP, Qt.Horizontal, QVariant("Imp"))
        self.fModel.setHeaderData(EQUIV, Qt.Horizontal, QVariant("Equiv"))
        self.fModel.setHeaderData(MMID, Qt.Horizontal, QVariant("ScaffId"))
        self.fModel.setHeaderData(FATT, Qt.Horizontal, QVariant("Fatt"))
        self.fModel.setHeaderData(NOTE, Qt.Horizontal, QVariant("Note"))
        self.fModel.setSort(MMID, Qt.AscendingOrder)
        self.fModel.setRelation(MMID, QSqlRelation("magamaster",
                                            "id", "scaff"))
        self.fModel.select()

    def clipCopy(self):
        self.Clipboard = self.sTableView.selectedIndexes()
        selrows = self.sItmSelModel.selectedRows()
        # TODO : da usare:  selrows = self.sItmSelModel.selectedRows()
        print(selrows, len(selrows))
        print(len(self.Clipboard))
        # FIXME : bla bla bla

    def clipDel(self):
        self.delDettRecord()

    def clipPaste(self):
        pass

    def ctxtMenu(self, point):
        menu = QMenu(self)
        copyAction = menu.addAction("&Copy")
        self.connect(copyAction, SIGNAL("triggered()"), self.clipCopy)
        delAction = menu.addAction("&Del")
        self.connect(delAction, SIGNAL("triggered()"), self.clipDel)
        if len(self.Clipboard) > 0:
            pasteAction = menu.addAction("&Paste")
            self.connect(pasteAction, SIGNAL("triggered()"), self.clipPaste)

        menu.exec_(self.sTableView.mapToGlobal(point))


    def setupUiSignals(self):
        self.sTableView.setContextMenuPolicy(Qt.CustomContextMenu)
        self.connect(self.sTableView,  SIGNAL(
                        "customContextMenuRequested(const QPoint &)"),
                        self.ctxtMenu)
        self.connect(self.scaffLineEdit, SIGNAL("returnPressed()"),
                    lambda: self.saveRecord(MainWindow.FIRST))
        self.connect(self.findLineEdit, SIGNAL("returnPressed()"),
                    self.globalFilter)
        self.connect(self.printPushButton, SIGNAL("clicked()"),
                    self.printInventory)
        self.connect(self.createFilterPushButton, SIGNAL("clicked()"),
                    self.createFilter)
        self.connect(self.findPushButton, SIGNAL("clicked()"),
                    self.applyFilter)
        self.connect(self.gSearchPushButton, SIGNAL("clicked()"),
                    self.globalFilter)
        self.connect(self.addscaffPushButton, SIGNAL("clicked()"),
                    self.addScaffRecord)
        self.connect(self.adddettPushButton, SIGNAL("clicked()"),
                    self.addDettRecord)
        self.connect(self.deldettPushButton, SIGNAL("clicked()"),
                    self.delDettRecord)
        self.connect(self.delscaffPushButton, SIGNAL("clicked()"),
                    self.delScaffRecord)
        self.connect(self.scaffFirstPushButton, SIGNAL("clicked()"),
                    lambda: self.saveRecord(MainWindow.FIRST))
        self.connect(self.scaffPrevPushButton, SIGNAL("clicked()"),
                    lambda: self.saveRecord(MainWindow.PREV))
        self.connect(self.scaffNextPushButton, SIGNAL("clicked()"),
                    lambda: self.saveRecord(MainWindow.NEXT))
        self.connect(self.scaffLastPushButton, SIGNAL("clicked()"),
                    lambda: self.saveRecord(MainWindow.LAST))


    def globalFilter(self):
        if not self.db.isOpen():
            self.statusbar.showMessage(
                "Database non aperto...",
                5000)
            return
        txt = self.findLineEdit.text()
        qry =   ("(datains like '%s') OR "
                "(abbi like '%s') OR "
                "(angro like '%s') OR "
                "(desc like '%s') OR "
                "(equiv like '%s') OR"
                "(fatt like '%s') OR"
                "(note like '%s')") % ((txt,)*7)
        self.fModel.setFilter(qry)
        self.updateFilter()

    def updateFilter(self):
        self.fModel.select()
        self.fTableView.setColumnHidden(ID, True)

    def applyFilter(self):
        if not self.db.isOpen():
            self.statusbar.showMessage(
                "Database non aperto...",
                5000)
            return
        self.fModel.setFilter(self.findLineEdit.text())
        self.updateFilter()

    def createFilter(self):
        if not self.db.isOpen():
            self.statusbar.showMessage(
                "Database non aperto...",
                5000)
            return
        headerDef = ("datains VARCHAR(100)",
                            "abbi VARCHAR(100)",
                            "angro VARCHAR(100)",
                            "desc VARCHAR(100)",
                            "qt VARCHAR(100)",
                            "imp VARCHAR(100)",
                            "equiv VARCHAR(100)",
                            "fatt VARCHAR(100)",
                            "note VARCHAR(100)")
        dlg = filterdialog.FilterDialog(headerDef,
                        QSqlDatabase.database(), self)
        if(dlg.exec_()):
            self.findLineEdit.setText(dlg.filterDone() 
                                        if dlg.filterDone() else "")
            self.applyFilter()

    #~ def editEsc(self, idxcur, idxold):
        #~ if self.editindex and self.editindex.isValid():
            #~ if idxcur.row() != self.editindex.row():
                #~ self.sModel.revertAll()
                #~ self.editindex = None

    def mmUpdate(self):
        row = self.mapper.currentIndex()
        id = self.mModel.data(self.mModel.index(row,ID)).toString()
        self.sModel.setFilter("mmid=%s" % id)
        self.sModel.select()
        self.sTableView.setColumnHidden(ID, True)
        self.sTableView.setColumnHidden(MMID, True)

    def saveRecord(self, where):
        if not self.db.isOpen():
            self.statusbar.showMessage(
                "Database non aperto...",
                5000)
            return
        row = self.mapper.currentIndex()
        self.mapper.submit()
        self.sModel.revertAll()
        if where == MainWindow.FIRST:
            row=0
        elif where == MainWindow.PREV:
            row = 0 if row <= 1 else row - 1
        elif where == MainWindow.NEXT:
            row += 1
            if row >= self.mModel.rowCount():
                row = self.mModel.rowCount() -1
        elif where == MainWindow.LAST:
            row = self.mModel.rowCount()- 1
        self.mapper.setCurrentIndex(row)
        self.mmUpdate()

    def addScaffRecord(self):
        if not self.db.isOpen():
            self.statusbar.showMessage(
                "Database non aperto...",
                5000)
            return
        row = self.mModel.rowCount()
        self.mapper.submit()
        self.mModel.insertRow(row)
        self.mapper.setCurrentIndex(row)
        self.scaffLineEdit.setFocus()
        self.mmUpdate()

    def addDettRecord(self):
        if not self.db.isOpen():
            self.statusbar.showMessage(
                "Database non aperto...",
                5000)
            return
        rowscaff = self.mapper.currentIndex()
        record = self.mModel.record(rowscaff)
        masterid = record.value(ID).toInt()[0]
        if masterid < 1:
            self.statusbar.showMessage(
                "Scaffale non valido o non confermato...",
                5000)
            self.scaffLineEdit.setFocus()
            return
        # aggiunge la nuova riga alla vista
        self.sModel.submitAll()
        self.sModel.select()
        row = self.sModel.rowCount()
        self.sModel.insertRow(row)
        if row > 1:
            precfatt = self.sModel.data(self.sModel.index(row-1, FATT))
        else:
            precfatt = ''
        if row > 1:
            lastData = self.sModel.data(self.sModel.index(row-1, DATAINS))
        else:
            lastData = ''
        self.sModel.setData(self.sModel.index(row, MMID),
                                                QVariant(masterid))
        self.sModel.setData(self.sModel.index(row, QT),
                                                QVariant(1))
        self.sModel.setData(self.sModel.index(row, IMP),
                                                QVariant(0.0))
        self.sModel.setData(self.sModel.index(row, FATT),
                                                QVariant(precfatt))
        self.editindex = self.sModel.index(row, DATAINS)
        self.sTableView.setCurrentIndex(self.editindex)
        self.sTableView.edit(self.editindex)

    def delDettRecord(self):
        if not self.db.isOpen():
            self.statusbar.showMessage(
                "Database non aperto...",
                5000)
            return
        selrows = self.sItmSelModel.selectedRows()
        if not selrows:
            self.statusbar.showMessage(
                "No articles selected to delete...",
                5000)
            return
        if(QMessageBox.question(self, "Cancella Articoli",
                "Vuoi cancellare: {0} articoli?".format(len(selrows)),
                QMessageBox.Yes|QMessageBox.No) ==
                QMessageBox.No):
            return
        QSqlDatabase.database().transaction()
        query = QSqlQuery()
        query.prepare("DELETE FROM magaslave WHERE id = :val")
        for i in selrows:
            if i.isValid():
                query.bindValue(":val", QVariant(i.data().toInt()[0]))
                query.exec_()
        QSqlDatabase.database().commit()
        self.sModel.revertAll()
        self.mmUpdate()

    def delScaffRecord(self):
        if not self.db.isOpen():
            self.statusbar.showMessage(
                "Database non aperto...",
                5000)
            return
        row = self.mapper.currentIndex()
        if row == -1:
            self.statusbar.showMessage(
                        "Nulla da cancellare...",
                        5000)
            return
        record = self.mModel.record(row)
        id = record.value(ID).toInt()[0]
        scaff = record.value(SCAFF).toString()
        if(QMessageBox.question(self, "Cancella Scaffale",
                    "Vuoi cancellare lo scaffale: {0} ?".format(scaff),
                    QMessageBox.Yes|QMessageBox.No) ==
                    QMessageBox.No):
            self.statusbar.showMessage(
                        "Cancellazione scaffale annullata...",
                        5000)
            return
        # cancella scaffale
        self.mModel.removeRow(row)
        self.mModel.submitAll()
        if row + 1 >= self.mModel.rowCount():
            row = self.mModel.rowCount() - 1
        self.mapper.setCurrentIndex(row)
        if self.mModel.rowCount() == 0:
            self.scaffLineEdit.setText(QString(""))

        # cancella tutti gli articoli che si riferiscono
        # allo scaffale cancellato
        self.sModel.setFilter("mmid=%s" % id)
        self.sModel.select()
        self.sModel.removeRows(0, self.sModel.rowCount())
        self.sModel.submitAll()
        self.statusbar.showMessage(
                        "Cancellazione eseguita...",
                        5000)
        self.mmUpdate()

    def restoreTablesSettings(self):
        settings = QSettings(self)
        if self.saveTableGeometryCheckBox.isChecked():
            # per la tabella slave
            for c in range(1, self.sModel.columnCount()-1):
                width = settings.value("Settings/sTableView/%s" % c,
                                        QVariant(60)).toInt()[0]
                self.sTableView.setColumnWidth(c,
                                            width if width > 0 else 60)

            # per la tabella find
            for c in range(1, self.fModel.columnCount()):
                width = settings.value("Settings/fTableView/%s" % c,
                                        QVariant(60)).toInt()[0]
                self.fTableView.setColumnWidth(c,
                                            width if width > 0 else 60)

    def restoreWinSettings(self):
        settings = QSettings()
        self.prtTitleLineEdit.setText(QString(settings.value(
                            "Settings/printTitle", QVariant(
                            "Situazione Magazzino - TIME di Stefano Zamprogno")).toString()))
        self.prtDateLineEdit.setText(QString(settings.value(
                            "Settings/printDate", QVariant(
                            "Al 31/12/2008")).toString()))
        self.saveWinPosCheckBox.setChecked(
                settings.value("Settings/saveWinPos", QVariant(True)).toBool())
        self.saveTableGeometryCheckBox.setChecked(
                settings.value("Settings/saveTableGeometry",
                QVariant(True)).toBool())
        self.restoreGeometry(
                settings.value("MainWindow/Geometry").toByteArray())

    def closeEvent(self, event):
        settings = QSettings()
        if self.filename is not None:
            settings.setValue("Settings/lastFile", QVariant(self.filename))
        settings.setValue("MainWindow/Geometry", QVariant(
                          self.saveGeometry()))
        settings.setValue("Settings/saveWinPos", QVariant(
                          self.saveWinPosCheckBox.isChecked()))
        settings.setValue("Settings/saveTableGeometry", QVariant(
                          self.saveTableGeometryCheckBox.isChecked()))
        settings.setValue("Settings/printTitle", QVariant(
                          self.prtTitleLineEdit.text()))
        settings.setValue("Settings/printDate", QVariant(
                          self.prtDateLineEdit.text()))

        if self.db.isOpen():
            # salva larghezza colonne tabella slave
            for c in range(1, self.sModel.columnCount()-1):
                width = self.sTableView.columnWidth(c)
                if width:
                    settings.setValue("Settings/sTableView/%s" % c,
                                        QVariant(width))

            # salva larghezza colonne tabella find
            for c in range(1, self.fModel.columnCount()):
                width = self.fTableView.columnWidth(c)
                if width:
                    settings.setValue("Settings/fTableView/%s" % c,
                        QVariant(width))
        self.db.close()
        del self.db