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#include "scriptingqt.h"
#include "scriptingqtdbproxy.h"
#include "db/db.h"
#include "db/sqlquery.h"
#include <QJSEngine>
ScriptingQtDbProxy::ScriptingQtDbProxy(QJSEngine* engine, QObject *parent) :
QObject(parent), engine(engine)
{
}
Db* ScriptingQtDbProxy::getDb() const
{
return db;
}
void ScriptingQtDbProxy::setDb(Db* value)
{
db = value;
}
bool ScriptingQtDbProxy::getUseDbLocking() const
{
return useDbLocking;
}
void ScriptingQtDbProxy::setUseDbLocking(bool value)
{
useDbLocking = value;
}
QHash<QString, QVariant> ScriptingQtDbProxy::mapToHash(const QMap<QString, QVariant>& map)
{
QHash<QString, QVariant> hash;
QMapIterator<QString, QVariant> it(map);
while (it.hasNext())
{
it.next();
hash[it.key()] = it.value();
}
return hash;
}
QVariant ScriptingQtDbProxy::evalInternal(const QString& sql, const QList<QVariant>& listArgs, const QMap<QString, QVariant>& mapArgs,
bool singleCell, const QJSValue* funcPtr)
{
if (!db)
{
QString funcName = singleCell ? QStringLiteral("db.onecolumn()") : QStringLiteral("db.eval()");
engine->throwError(tr("No database available in current context, while called JavaScript's %1 command.").arg(funcName));
return evalInternalErrorResult(singleCell);
}
Db::Flags flags;
if (!useDbLocking)
flags |= Db::Flag::NO_LOCK;
SqlQueryPtr results;
if (listArgs.size() > 0)
results = db->exec(sql, listArgs, flags);
else
results = db->exec(sql, mapToHash(mapArgs), flags);
if (results->isError())
{
QString funcName = singleCell ? QStringLiteral("db.onecolumn()") : QStringLiteral("db.eval()");
engine->throwError(tr("Error from %1: %2").arg(funcName, results->getErrorText()));
return evalInternalErrorResult(singleCell);
}
if (singleCell)
{
return results->getSingleCell();
}
else if (funcPtr)
{
QJSValue func(*funcPtr);
SqlResultsRowPtr row;
QJSValueList funcArgs;
QJSValue funcResult;
while (results->hasNext())
{
row = results->next();
funcArgs = ScriptingQt::toValueList(engine, row->valueList());
funcResult = func.call(funcArgs);
if (!funcResult.isUndefined())
break;
}
return funcResult.toVariant();
}
else
{
QList<QVariant> evalResults;
SqlResultsRowPtr row;
while (results->hasNext())
{
row = results->next();
evalResults << QVariant(row->valueList());
}
return evalResults;
}
}
QVariant ScriptingQtDbProxy::evalInternalErrorResult(bool singleCell)
{
QList<QVariant> result;
if (singleCell)
result << QVariant();
return result;
}
QVariant ScriptingQtDbProxy::eval(const QString& sql)
{
return evalInternal(sql, QList<QVariant>(), QMap<QString, QVariant>(), false);
}
QVariant ScriptingQtDbProxy::eval(const QString& sql, const QList<QVariant>& args)
{
return evalInternal(sql, args, QMap<QString, QVariant>(), false);
}
QVariant ScriptingQtDbProxy::eval(const QString& sql, const QMap<QString, QVariant>& args)
{
return evalInternal(sql, QList<QVariant>(), args, false);
}
QVariant ScriptingQtDbProxy::eval(const QString& sql, const QList<QVariant>& args, const QJSValue& func)
{
return evalInternal(sql, args, QMap<QString, QVariant>(), false, &func);
}
QVariant ScriptingQtDbProxy::eval(const QString& sql, const QMap<QString, QVariant>& args, const QJSValue& func)
{
return evalInternal(sql, QList<QVariant>(), args, false, &func);
}
QVariant ScriptingQtDbProxy::onecolumn(const QString& sql, const QList<QVariant>& args)
{
return evalInternal(sql, args, QMap<QString, QVariant>(), true);
}
QVariant ScriptingQtDbProxy::onecolumn(const QString& sql, const QMap<QString, QVariant>& args)
{
return evalInternal(sql, QList<QVariant>(), args, true);
}
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