Read-Only Configuration-Database support (#1046)

include/db/AuthTable.h

@@ -16,9 +16,10 @@ class AuthTable : public DBManager
 
 public:
 	/// construct wrapper with auth table
-	AuthTable(const QString& rootPath = "", QObject* parent = nullptr)
+	AuthTable(const QString& rootPath = "", QObject* parent = nullptr, bool readonlyMode = false)
 		: DBManager(parent)
 	{
+		setReadonlyMode(readonlyMode);
 		if(!rootPath.isEmpty()){
 			// Init Hyperion database usage
 			setRootPath(rootPath);

include/db/DBManager.h

@@ -119,6 +119,13 @@ public:
 	///
 	bool deleteTable(const QString& table) const;
 
+	///
+	/// @brief Sets a table in read-only mode.
+	/// Updates will not written to the table
+	/// @param[in]  readOnly True read-only, false - read/write
+	///
+	void setReadonlyMode(bool readOnly) { _readonlyMode = readOnly; };
+
 private:
 
 	Logger* _log;
@@ -127,6 +134,8 @@ private:
 	/// table in database
 	QString _table;
 
+	bool _readonlyMode;
+
 	/// addBindValue to query given by QVariantList
 	void doAddBindValue(QSqlQuery& query, const QVariantList& variants) const;
 };

include/db/InstanceTable.h

@@ -14,9 +14,11 @@ class InstanceTable : public DBManager
 {
 
 public:
-	InstanceTable(const QString& rootPath, QObject* parent = nullptr)
+	InstanceTable(const QString& rootPath, QObject* parent = nullptr, bool readonlyMode = false)
 		: DBManager(parent)
 	{
+
+		setReadonlyMode(readonlyMode);
 		// Init Hyperion database usage
 		setRootPath(rootPath);
 		setDatabaseName("hyperion");

include/db/MetaTable.h

@@ -17,9 +17,11 @@ class MetaTable : public DBManager
 
 public:
 	/// construct wrapper with plugins table and columns
-	MetaTable(QObject* parent = nullptr)
+	MetaTable(QObject* parent = nullptr, bool readonlyMode = false)
 		: DBManager(parent)
 	{
+		setReadonlyMode(readonlyMode);
+
 		setTable("meta");
 		createTable(QStringList()<<"uuid TEXT"<<"created_at TEXT");
 	};