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ColumnDisplayFormatDialog.cpp
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137 lines (123 loc) · 7.17 KB
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#include <QMessageBox>
#include "ColumnDisplayFormatDialog.h"
#include "ui_ColumnDisplayFormatDialog.h"
#include "sql/sqlitetypes.h"
#include "sqlitedb.h"
ColumnDisplayFormatDialog::ColumnDisplayFormatDialog(DBBrowserDB& db, const sqlb::ObjectIdentifier& tableName, const QString& colname, const QString& current_format, QWidget* parent)
: QDialog(parent),
ui(new Ui::ColumnDisplayFormatDialog),
column_name(colname),
pdb(db),
curTable(tableName)
{
// Create UI
ui->setupUi(this);
ui->comboDisplayFormat->addItem(tr("Default"), "default");
ui->comboDisplayFormat->insertSeparator(ui->comboDisplayFormat->count());
ui->comboDisplayFormat->addItem(tr("Decimal number"), "decimal");
ui->comboDisplayFormat->addItem(tr("Exponent notation"), "exponent");
ui->comboDisplayFormat->addItem(tr("Hex blob"), "hexblob");
ui->comboDisplayFormat->addItem(tr("Hex number"), "hex");
ui->comboDisplayFormat->addItem(tr("Octal number"), "octal");
ui->comboDisplayFormat->addItem(tr("Round number"), "round");
ui->comboDisplayFormat->insertSeparator(ui->comboDisplayFormat->count());
ui->comboDisplayFormat->addItem(tr("Apple NSDate to date"), "appleDate");
ui->comboDisplayFormat->addItem(tr("Java epoch (milliseconds) to date"), "javaEpoch");
ui->comboDisplayFormat->addItem(tr("Julian day to date"), "julian");
ui->comboDisplayFormat->addItem(tr("Unix epoch to date"), "epoch");
ui->comboDisplayFormat->addItem(tr("Unix epoch to local time"), "epochLocalTime");
ui->comboDisplayFormat->addItem(tr("Windows DATE to date"), "winDate");
ui->comboDisplayFormat->addItem(tr("Date as dd/mm/yyyy"), "ddmmyyyyDate");
ui->comboDisplayFormat->insertSeparator(ui->comboDisplayFormat->count());
ui->comboDisplayFormat->addItem(tr("Lower case"), "lower");
ui->comboDisplayFormat->addItem(tr("Upper case"), "upper");
ui->comboDisplayFormat->insertSeparator(ui->comboDisplayFormat->count());
ui->comboDisplayFormat->addItem(tr("Custom"), "custom");
ui->labelDisplayFormat->setText(ui->labelDisplayFormat->text().arg(column_name));
formatFunctions["decimal"] = "printf('%d', " + sqlb::escapeIdentifier(column_name) + ")";
formatFunctions["exponent"] = "printf('%e', " + sqlb::escapeIdentifier(column_name) + ")";
formatFunctions["hexblob"] = "hex(" + sqlb::escapeIdentifier(column_name) + ")";
formatFunctions["hex"] = "printf('0x%x', " + sqlb::escapeIdentifier(column_name) + ")";
formatFunctions["octal"] = "printf('%o', " + sqlb::escapeIdentifier(column_name) + ")";
formatFunctions["round"] = "round(" + sqlb::escapeIdentifier(column_name) + ")";
formatFunctions["appleDate"] = "datetime('2001-01-01', " + sqlb::escapeIdentifier(column_name) + " || ' seconds')";
formatFunctions["javaEpoch"] = "strftime('%Y-%m-%d %H:%M:%S.', " + sqlb::escapeIdentifier(column_name) +
"/1000, 'unixepoch') || (" + sqlb::escapeIdentifier(column_name) + "%1000)";
formatFunctions["julian"] = "datetime(" + sqlb::escapeIdentifier(column_name) + ")";
formatFunctions["epoch"] = "datetime(" + sqlb::escapeIdentifier(column_name) + ", 'unixepoch')";
formatFunctions["epochLocalTime"] = "datetime(" + sqlb::escapeIdentifier(column_name) + ", 'unixepoch', 'localtime')";
formatFunctions["winDate"] = "datetime('1899-12-30', " + sqlb::escapeIdentifier(column_name) + " || ' days')";
formatFunctions["ddmmyyyyDate"] = "strftime('%d/%m/%Y', " + sqlb::escapeIdentifier(column_name) + ")";
formatFunctions["lower"] = "lower(" + sqlb::escapeIdentifier(column_name) + ")";
formatFunctions["upper"] = "upper(" + sqlb::escapeIdentifier(column_name) + ")";
// Set the current format, if it's empty set the default format
if(current_format.isEmpty())
{
ui->comboDisplayFormat->setCurrentIndex(0);
updateSqlCode();
} else {
// When it doesn't match any predefined format, it is considered custom
QString formatName = "custom";
auto it = std::find_if(formatFunctions.begin(), formatFunctions.end(), [current_format](const std::pair<std::string, QString>& s) {
return s.second == current_format;
});
if(it != formatFunctions.end())
formatName = QString::fromStdString(it->first);
ui->comboDisplayFormat->setCurrentIndex(ui->comboDisplayFormat->findData(formatName));
ui->editDisplayFormat->setText(current_format);
}
}
ColumnDisplayFormatDialog::~ColumnDisplayFormatDialog()
{
delete ui;
}
QString ColumnDisplayFormatDialog::selectedDisplayFormat() const
{
if(ui->comboDisplayFormat->currentData().toString() == "default")
return QString();
else
return ui->editDisplayFormat->text();
}
void ColumnDisplayFormatDialog::updateSqlCode()
{
std::string format = ui->comboDisplayFormat->currentData().toString().toStdString();
if(format == "default")
ui->editDisplayFormat->setText(sqlb::escapeIdentifier(column_name));
else if(format != "custom")
ui->editDisplayFormat->setText(formatFunctions.at(format));
}
void ColumnDisplayFormatDialog::accept()
{
QString errorMessage;
// Accept the SQL code if it's the column name (default), it contains a function invocation applied to the column name and it can be
// executed without errors returning only one column.
// Users could still devise a way to break this, but this is considered good enough for letting them know about simple incorrect
// cases.
if(!(ui->editDisplayFormat->text() == sqlb::escapeIdentifier(column_name) ||
ui->editDisplayFormat->text().contains(QRegularExpression("[a-z]+[a-z_0-9]* *\\(.*" + QRegularExpression::escape(sqlb::escapeIdentifier(column_name)) + ".*\\)", QRegularExpression::CaseInsensitiveOption))))
errorMessage = tr("Custom display format must contain a function call applied to %1").arg(sqlb::escapeIdentifier(column_name));
else {
// Execute a query using the display format and check that it only returns one column.
int customNumberColumns = 0;
DBBrowserDB::execCallback callback = [&customNumberColumns](int numberColumns, QStringList, QStringList) -> bool {
customNumberColumns = numberColumns;
// Return false so the query is not aborted and no error is reported.
return false;
};
if(!pdb.executeSQL(QString("SELECT %1 FROM %2 LIMIT 1").arg(ui->editDisplayFormat->text(), QString::fromStdString(curTable.toString())),
false, true, callback))
errorMessage = tr("Error in custom display format. Message from database engine:\n\n%1").arg(pdb.lastError());
else if(customNumberColumns != 1)
errorMessage = tr("Custom display format must return only one column but it returned %1.").arg(customNumberColumns);
}
if(!errorMessage.isEmpty())
QMessageBox::warning(this, QApplication::applicationName(), errorMessage);
else
QDialog::accept();
}
void ColumnDisplayFormatDialog::setCustom(bool modified)
{
// If the SQL code is modified by user, select the custom value in the combo-box
if(modified && ui->editDisplayFormat->hasFocus())
ui->comboDisplayFormat->setCurrentIndex(ui->comboDisplayFormat->findData("custom"));
}