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database/userdaosqlite.cpp

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+/* Copyright (c) 2018 Albert S.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+#include <sqlite3.h>
+#include <string>
+#include <memory>
+#include <cstring>
+#include "userdaosqlite.h"
+
+UserDaoSqlite::UserDaoSqlite()
+{
+}
+
+bool UserDaoSqlite::exists(std::string username)
+{
+	auto prep = *db << "SELECT 1 FROM user WHERE username = ?" << username;
+	return execBool(prep);
+}
+
+std::optional<User> UserDaoSqlite::find(std::string username)
+{
+
+	try
+	{
+		User user;
+		auto stmt = *db << "SELECT username, password, salt, permissions FROM user WHERE username = ?" << username;
+
+		int perms = 0;
+		stmt >> std::tie(user.login, user.password, user.salt, perms);
+		user.permissions = Permissions{perms};
+
+		return std::move(user);
+	}
+	catch(const sqlite::errors::no_rows &e)
+	{
+		return {};
+	}
+	catch(sqlite::sqlite_exception &e)
+	{
+		throwFrom(e);
+	}
+}
+
+std::optional<User> UserDaoSqlite::find(int id)
+{
+	try
+	{
+		User user;
+		auto stmt = *db << "SELECT username, password, salt, permissions FROM user WHERE id = ?" << id;
+
+		int perms = 0;
+		stmt >> std::tie(user.login, user.password, user.salt, perms);
+		user.permissions = Permissions{perms};
+
+		return std::move(user);
+	}
+	catch(const sqlite::errors::no_rows &e)
+	{
+		return {};
+	}
+	catch(sqlite::sqlite_exception &e)
+	{
+		throwFrom(e);
+	}
+}
+
+void UserDaoSqlite::deleteUser(std::string username)
+{
+	// What to do with the contributions of the user?
+}
+
+void UserDaoSqlite::save(const User &u)
+{
+}