Added a new database based settings class.

core/settings/db_settings.cpp

@@ -0,0 +1,80 @@
+#include "db_settings.h"
+
+#include "core/database/database.h"
+#include "core/database/database_manager.h"
+#include "core/database/query_builder.h"
+#include "core/database/query_result.h"
+#include "core/database/table_builder.h"
+
+void DBSettings::set_value(const String &key, const Variant &value) {
+	const Variant &v = _data[key];
+
+	int id = 0;
+
+	if (!v.is_null()) {
+		id = _key_map[key];
+	}
+
+	_data[key] = value;
+
+	Ref<QueryBuilder> qb = DatabaseManager::get_singleton()->ddb->get_query_builder();
+
+	if (id == 0) {
+		qb->insert(_table, "key,value")->values()->val(key)->val(value.to_string())->cvalues();
+		qb->select_last_insert_id();
+		Ref<QueryResult> res = qb->run();
+
+		id = res->get_last_insert_rowid();
+
+		 _key_map[key] = id;
+	} else {
+		qb->update(_table)->set()->setp("key", key)->setp("value", value.to_string())->cset()->where()->wp("id", id);
+		qb->run_query();
+	}
+}
+
+void DBSettings::load() {
+	_data.clear();
+	_key_map.clear();
+
+	Ref<QueryBuilder> qb = DatabaseManager::get_singleton()->ddb->get_query_builder();
+	qb->select("id,key,value")->from(_table);
+
+	Ref<QueryResult> res = qb->run();
+
+	while (res->next_row()) {
+		int id = res->get_cell_int(0);
+		String key = res->get_cell_str(1);
+		String value = res->get_cell_str(2);
+
+		_data[key] = Variant::parse_string(value);
+		_key_map[key] = id;
+	}
+}
+
+void DBSettings::migrate() {
+	Ref<TableBuilder> tb = DatabaseManager::get_singleton()->ddb->get_table_builder();
+	tb->drop_table_if_exists(_table);
+
+	tb->create_table(_table);
+	tb->integer("id")->auto_increment()->next_row();
+	tb->varchar("key", 300)->not_null()->next_row();
+	tb->text("value")->not_null()->next_row();
+	tb->primary_key("id");
+	tb->ccreate_table();
+
+	tb->run_query();
+}
+
+void DBSettings::set_table(const String &table) {
+	_table = table;
+}
+
+DBSettings::DBSettings(const bool singleton) :
+		Settings(singleton) {
+
+	_table = "settings";
+}
+
+DBSettings::~DBSettings() {
+}

core/settings/db_settings.h

@@ -0,0 +1,27 @@
+#ifndef DB_SETTINGS_H
+#define DB_SETTINGS_H
+
+#include "settings.h"
+
+class DBSettings : public Settings {
+	RCPP_OBJECT(DBSettings, Settings);
+
+public:
+	virtual void set_value(const String &key, const Variant &value);
+
+	void load();
+
+	void migrate();
+
+	void set_table(const String &table);
+
+	DBSettings(const bool singleton = false);
+	virtual ~DBSettings();
+
+protected:
+	String _table;
+
+	std::map<String, int> _key_map;
+};
+
+#endif