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saleitemtableview.cpp
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saleitemtableview.cpp
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#include "saleitemtableview.h"
#include <QtGui>
#include <QtSql>
// Òàáëèöà áàçû äàííûõ: ïîëüçîâàòåëüñêàÿ ìîäåëü è ïðåäñòàâëåíèå
SaleItemTableView::SaleItemTableView(QObject *parent)
: QSqlQueryModel(parent) {
refresh();
}
Qt::ItemFlags SaleItemTableView::flags(
const QModelIndex &index) const {
Qt::ItemFlags flags = QSqlQueryModel::flags(index);
flags |= Qt::ItemIsSelectable;
return flags;
}
QVariant SaleItemTableView::data(
const QModelIndex &index,
int role) const {
QVariant value = QSqlQueryModel::data(index, role);
switch (role) {
case Qt::DisplayRole: // Äàííûå äëÿ îòîáðàæåíèÿ
if (index.column() == 5 ||
index.column() == 6)
return tr("%1 ðóá.")
.arg(value.toDouble(), 0, 'f', 2);
else
return value;
case Qt::EditRole: // Äàííûå äëÿ ðåäàêòèðîâàíèÿ
if (index.column() == 5 ||
index.column() == 6)
return value;
else
return value;
case Qt::TextAlignmentRole: // Âûðàâíèâàíèå
if(index.column() == 0
|| index.column() == 1
|| index.column() == 3
|| index.column() == 5
|| index.column() == 6)
return int(Qt::AlignRight | Qt::AlignVCenter);
else
return int(Qt::AlignLeft | Qt::AlignVCenter);
case Qt::SizeHintRole: // Ðàçìåð ÿ÷åéêè
if (index.column() == 0
|| index.column() == 1)
return QSize(40, 10);
else if (index.column() == 2)
return QSize(200, 10);
else if (index.column() == 3
||index.column() == 4)
return QSize(60, 10);
else if (index.column() == 5)
return QSize(100, 10);
else
return QSize(100, 10);
qDebug() << "SizeHintRole\n";
}
return value;
}
/*
bool SaleItemTableView::setData(
const QModelIndex &index,
const QVariant &value,
int) {
if (index.column() < 1 || index.column() > 4)
return false;
QModelIndex primaryKeyIndex = QSqlQueryModel::index(
index.row(), 0);
int id = QSqlQueryModel::data(primaryKeyIndex).toInt();
//clear(); // Åñëè íàäî ïîëíîñòüþ ïåðåðèñîâàòü òàáëèöó.
bool ok;
QSqlQuery query;
if (index.column() == 1) {
query.prepare("update employee set name = ? where id = ?");
query.addBindValue(value.toString());
query.addBindValue(id);
}else if(index.column() == 2) {
query.prepare("update employee set born = ? where id = ?");
query.addBindValue(value.toDate());
query.addBindValue(id);
}else if(index.column() == 3) {
query.prepare("update employee set salary = ? where id = ?");
query.addBindValue(value.toDouble());
query.addBindValue(id);
}else if(index.column() == 4) {
query.prepare("update employee set married = ? where id = ?");
query.addBindValue(value.toBool());
query.addBindValue(id);
}
ok = query.exec();
refresh();
return ok;
}*/
bool SaleItemTableView::addProduct(int row, float value)
{
QModelIndex primaryKeyIndex = QSqlQueryModel::index(
row, 1);
QModelIndex countIndex = QSqlQueryModel::index(
row, 3);
int id = QSqlQueryModel::data(primaryKeyIndex).toInt();
float count = QSqlQueryModel::data(countIndex).toFloat();
bool ok;
QSqlQuery query;
if (value+count > 0)
{
query.prepare("update sale_items set count=count+? where sale_item_id = ?");
query.addBindValue(value);
}
else
query.prepare("delete from sale_items where sale_item_id = ?");
query.addBindValue(id);
ok = query.exec();
if ( query.lastError().type() != QSqlError::NoError )
{
QMessageBox::critical(
NULL
,QObject::tr("result")
,QString("Query: database error: %2")
.arg(query.lastError().text())
,QMessageBox::Ok
,QMessageBox::NoButton);
}
refresh();
return ok;
}
bool SaleItemTableView::removeRow ( int row, const QModelIndex & parent)
{
QModelIndex primaryKeyIndex = QSqlQueryModel::index(
row, 1);
QModelIndex countIndex = QSqlQueryModel::index(
row, 3);
int id = QSqlQueryModel::data(primaryKeyIndex).toInt();
int count = QSqlQueryModel::data(countIndex).toInt();
bool ok;
QSqlQuery query;
/*if (count > 1)
query.prepare("update sale_items set count=count-1 where sale_item_id = ?");
else*/
query.prepare("delete from sale_items where sale_item_id = ?");
query.addBindValue(id);
ok = query.exec();
if ( query.lastError().type() != QSqlError::NoError )
{
QMessageBox::critical(
NULL
,QObject::tr("result")
,QString("Query: database error: %2")
.arg(query.lastError().text())
,QMessageBox::Ok
,QMessageBox::NoButton);
}
refresh();
return ok;
}
void SaleItemTableView::refresh() {
setHeaderData(0, Qt::Horizontal,
QObject::tr("¹"));
setHeaderData(1, Qt::Horizontal,
QObject::tr("Id"));
setHeaderData(2, Qt::Horizontal,
QObject::tr("Íèìåíîâàíèå òîâàðà"));
setHeaderData(3, Qt::Horizontal,
QObject::tr("Êîë-âî"));
setHeaderData(4, Qt::Horizontal,
QObject::tr("Åä."));
setHeaderData(5, Qt::Horizontal,
QObject::tr("Öåíà"));
}