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/*
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.
*/
#include <QSqlDatabase>
#include <QSqlQuery>
#include <QContextMenuEvent>
#include <QMenu>
#include <QVBoxLayout>
#include <QHBoxLayout>
#include <QLineEdit>
#include <QPushButton>
#include <QLabel>
#include <QMessageBox>
#include <QAction>
#include <QSortFilterProxyModel>
#include "mappingtableeditor.h"
//widget
MappingTableEditor::MappingTableEditor(const QString &table, QWidget *parent) : SmDialog(parent), mTable(table){
//caption
QString l1String = QString(tr("Edit %1s").arg(mTable));
QLabel *l1 = new QLabel(l1String);
//model + view
QStringList headers = QStringList() << QString("%1s").arg(mTable) << tr("Count");
mModel = new MappingTableEditorModel(table, headers, this);
mView = new MappingTableEditorView;
QSortFilterProxyModel *proxy = new QSortFilterProxyModel(this);
proxy->setSourceModel(mModel);
mView->setModel(proxy);
mView->setRootIsDecorated(false);
mView->setColumnHidden(2, true);
mView->resizeColumnToContents(0);
mView->setSortingEnabled(true);
mView->setAlternatingRowColors(true);
mView->sortByColumn(0, Qt::AscendingOrder);
mView->setSelectionMode(QAbstractItemView::SingleSelection);
//edit
QHBoxLayout *editLayout = new QHBoxLayout;
QLabel *l2 = new QLabel(tr("Item"));
editLayout->addWidget(l2);
mDataEdit = new QLineEdit;
editLayout->addWidget(mDataEdit);
//buttons
QHBoxLayout *buttonLayout = new QHBoxLayout;
buttonLayout->setAlignment(Qt::AlignRight);
mClose = new QPushButton(tr("Close"));
mClose->setDefault(true);
mRename = new QPushButton(tr("Rename"));
mDelete = new QPushButton(tr("Delete"));
buttonLayout->addWidget(mDelete);
buttonLayout->addWidget(mRename);
buttonLayout->addWidget(mClose);
//mainlayout
QVBoxLayout *mainLayout = new QVBoxLayout;
mainLayout->addWidget(l1);
mainLayout->addWidget(mView);
mainLayout->addLayout(editLayout);
mainLayout->addLayout(buttonLayout);
setLayout(mainLayout);
//actions
mDeleteA = new QAction(tr("Delete"), this);
mView->addAction(mDeleteA);
mEditA = new QAction(tr("Edit..."), this);
mView->addAction(mEditA);
//connections
connect(mView->selectionModel(), SIGNAL(currentChanged(QModelIndex,QModelIndex)), this, SLOT(selectionChanged(QModelIndex,QModelIndex)));
connect(mClose, SIGNAL(clicked()), this, SLOT(accept()));
connect(mDelete, SIGNAL(clicked()), this, SLOT(removeItem()));
connect(mRename, SIGNAL(clicked()), this, SLOT(renameItem()));
connect(mDeleteA, SIGNAL(triggered()), this, SLOT(removeItem()));
connect(mEditA, SIGNAL(triggered()), this, SLOT(editItem()));
}
void MappingTableEditor::selectionChanged(const QModelIndex &cur, const QModelIndex &prev){
Q_UNUSED(prev);
mDataEdit->setText(cur.data(MappingTableEditorModel::NameRole).toString());
}
void MappingTableEditor::removeItem(){
QModelIndexList selected = mView->selectionModel()->selectedRows();
if(selected.isEmpty()){
return;
}
int count = selected.at(0).data(MappingTableEditorModel::CountRole).toInt();
if(count > 0){
QString warning = QString(tr("Really remove %1 %2? There are %3 items associated with it.")).arg(mTable).arg(selected.at(0).data(MappingTableEditorModel::NameRole).toString()).arg(QString::number(count));
int mbRetval = QMessageBox::warning(this, tr("Warning!"), warning, QMessageBox::Yes | QMessageBox::No);
if(mbRetval == QMessageBox::No){
return;
}
}
mModel->removeData(selected.at(0));
}
void MappingTableEditor::renameItem(){
QModelIndexList selected = mView->selectionModel()->selectedRows();
if(selected.isEmpty()){
return;
}
QString newValue = mDataEdit->text().toLower().trimmed();
QModelIndex newIdx = mModel->find(newValue, MappingTableEditorModel::Name);
if(newIdx.isValid()){
QString warning = QString(tr("New value %1 already exists. Merge?")).arg(newValue);
int mbRetval = QMessageBox::warning(this, tr("Warning!"), warning, QMessageBox::Yes | QMessageBox::No);
if(mbRetval == QMessageBox::No){
return;
}
}
mModel->setData(selected.at(0), newValue, Qt::EditRole);
}
void MappingTableEditor::editItem(){
QModelIndexList selected = mView->selectionModel()->selectedRows();
if(selected.isEmpty()){
return;
}
mView->edit(selected.at(0));
}
//view
MappingTableEditorView::MappingTableEditorView(QWidget *parent) : QTreeView(parent) {}
void MappingTableEditorView::contextMenuEvent(QContextMenuEvent *e){
QMenu contextMenu(this);
contextMenu.addActions(actions());
contextMenu.exec(e->globalPos());
}
//model
MappingTableEditorModel::MappingTableEditorModel(const QString &table, const QStringList &headers, QObject *parent) : SmTreeModel(headers, parent), mTable(table){
mDb = QSqlDatabase::database("treedb");
QString queryString = QString("SELECT t%1name, COUNT(iseriesparts_id), %1s.i%1s_id from %1s, seriesparts_%1map WHERE %1s.i%1s_id = seriesparts_%1map.i%1s_id GROUP BY %1s.t%1name, %1s.i%1s_id ORDER BY t%1name").arg(mTable);
mDataQuery = new QSqlQuery(mDb);
mDataQuery->prepare(queryString);
QString mergeQuery = QString("UPDATE %1s SET %1s_id = %2 WHERE %1s_id = %3");
populate();
}
MappingTableEditorModel::~MappingTableEditorModel(){
delete mDataQuery;
mDb = QSqlDatabase();
}
Qt::ItemFlags MappingTableEditorModel::flags(const QModelIndex &index) const{
if(!index.isValid()){
return 0;
}
Qt::ItemFlags retval = Qt::ItemIsEnabled | Qt::ItemIsSelectable;
if(index.column() == 0){
retval |= Qt::ItemIsEditable;
}
return retval;
}
QVariant MappingTableEditorModel::data(const QModelIndex &index, int role) const{
if(!index.isValid()){
return QVariant();
}
SmTreeItem *item = static_cast<SmTreeItem*>(index.internalPointer());
if(role == NameRole){
return item->data(Name);
}
if(role == CountRole){
return item->data(Count);
}
if(role == IdRole){
return item->data(Id);
}
return SmTreeModel::data(index, role);
}
bool MappingTableEditorModel::setData(const QModelIndex &idx, const QVariant &value, int role){
if(!idx.isValid()){
return false;
}
if(role != Qt::EditRole){
return false;
}
bool retval = false;
QModelIndex newValue = find(value);
if(newValue.isValid()){
QSqlQuery mergeQuery(mDb);
QString query = QString("UPDATE %1s SET %1s_id = :newid WHERE %1s_id = :oldid").arg(mTable);
mergeQuery.prepare(query);
mergeQuery.bindValue(":newid", newValue.data(IdRole));
mergeQuery.bindValue(":oldid", idx.data(IdRole));
retval = mergeQuery.exec();
}else{
QSqlQuery renameQuery(mDb);
QString query = QString("UPDATE %1s SET t%1name = :name WHERE i%1s_id = :id").arg(mTable);
renameQuery.prepare(query);
renameQuery.bindValue(":name", value);
renameQuery.bindValue(":id", idx.data(IdRole));
retval = renameQuery.exec();
}
if(retval){
populate();
}
return retval;
}
bool MappingTableEditorModel::removeData(const QModelIndex &idx){
if(!idx.isValid()){
return false;
}
QString removeQuery = QString("DELETE FROM %1s WHERE i%1s_id = %2").arg(mTable).arg(QString::number(idx.data(IdRole).toInt()));
QSqlQuery remove(removeQuery, mDb);
bool retval = remove.exec();
if(retval){
populate();
}
return retval;
}
void MappingTableEditorModel::populate(){
SmTreeItem *rootItem = new SmTreeItem(3);
mDataQuery->exec();
while(mDataQuery->next()){
QList<QVariant> data;
data << mDataQuery->value(0) << mDataQuery->value(1) << mDataQuery->value(2);
SmTreeItem *childItem = new SmTreeItem(data, rootItem);
rootItem->appendChild(childItem);
}
setRoot(rootItem);
}
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