additional methods in SQLQuery

libs/sql/sql_query.cpp

@@ -24,8 +24,10 @@ QAD::SQLQuery::~SQLQuery() {}
 QAD::SQLQuery::Result QAD::SQLQuery::exec(QString query_, QVariantMap params, QSqlDatabase db) {
 	QAD::SQLQuery::Result ret;
 	QAD::SQLQuery q(query_, params, db);
+	// qDebug() << query_ << params;
 	if (q.q.exec()) {
 		ret.ok       = true;
+		ret.rows     = q.q.numRowsAffected();
 		ret.insertId = q.q.lastInsertId();
 		return ret;
 	}
@@ -34,6 +36,37 @@ QAD::SQLQuery::Result QAD::SQLQuery::exec(QString query_, QVariantMap params, QS
 }
 
 
+QAD::SQLQuery::Result QAD::SQLQuery::insert(QString table, QVariantMap values, QSqlDatabase db) {
+	QVariantMap params;
+	QString qi = "INSERT INTO " + table + " (", qp, ph;
+	QMapIterator<QString, QVariant> it(values);
+	while (it.hasNext()) {
+		it.next();
+		ph = "v" + it.key();
+		qi += it.key();
+		qp += ":" + ph;
+		params[ph] = it.value();
+		if (it.hasNext()) {
+			qi += ",";
+			qp += ",";
+		}
+	}
+	return exec(qi + ") VALUES (" + qp + ")", params, db);
+}
+
+
+QAD::SQLQuery::Result QAD::SQLQuery::remove(QString table, QString filter, QSqlDatabase db) {
+	QString flt;
+	if (!filter.isEmpty()) flt = " WHERE ";
+	return exec("DELETE FROM " + table + flt + filter, {}, db);
+}
+
+
+bool QAD::SQLQuery::drop(QString table, QSqlDatabase db) {
+	return exec("DROP TABLE " + table, {}, db).ok;
+}
+
+
 void QAD::SQLQuery::setFailHandler(QAD::SQLQuery::HandlerFail h) {
 	Singleton::instance()->fail_handler = h;
 }

libs/sql/sql_query.h

@@ -35,9 +35,11 @@ public:
 	SQLQuery(QString query_ = QString(), QVariantMap params = QVariantMap(), QSqlDatabase db = QSqlDatabase());
 	~SQLQuery();
 
-	struct Result {
+	struct QAD_SQL_EXPORT Result {
 		bool ok           = false;
+		int rows          = 0;
 		QVariant insertId = -1;
+		operator bool() const { return ok; }
 	};
 
 	typedef std::function<void(QString, QVariantMap, QSqlError)> HandlerFail;
@@ -46,6 +48,15 @@ public:
 
 	static Result exec(QString query_, QVariantMap params = QVariantMap(), QSqlDatabase db = QSqlDatabase());
 
+	/// INSERT INTO <table> (<values.keys>) VALUES (<values.values>)
+	static Result insert(QString table, QVariantMap values = QVariantMap(), QSqlDatabase db = QSqlDatabase());
+
+	/// DELETE FROM <table> [WHERE <filter>]
+	static Result remove(QString table, QString filter = QString(), QSqlDatabase db = QSqlDatabase());
+
+	/// DROP TABLE <table>
+	static bool drop(QString table, QSqlDatabase db = QSqlDatabase());
+
 	static void setFailHandler(HandlerFail h);
 
 protected: