sticker/Database: move SQLite helpers to lib/sqlite/Util.hxx

src/lib/sqlite/Util.hxx

@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2003-2014 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_SQLITE_UTIL_HXX
+#define MPD_SQLITE_UTIL_HXX
+
+#include "Domain.hxx"
+#include "Log.hxx"
+
+#include <sqlite3.h>
+
+#include <assert.h>
+
+static void
+LogError(sqlite3 *db, const char *msg)
+{
+	FormatError(sqlite_domain, "%s: %s", msg, sqlite3_errmsg(db));
+}
+
+static void
+LogError(sqlite3_stmt *stmt, const char *msg)
+{
+	LogError(sqlite3_db_handle(stmt), msg);
+}
+
+static bool
+Bind(sqlite3_stmt *stmt, unsigned i, const char *value)
+{
+	int result = sqlite3_bind_text(stmt, i, value, -1, nullptr);
+	if (result != SQLITE_OK) {
+		LogError(stmt, "sqlite3_bind_text() failed");
+		return false;
+	}
+
+	return true;
+}
+
+template<typename... Args>
+static bool
+BindAll2(gcc_unused sqlite3_stmt *stmt, gcc_unused unsigned i)
+{
+	assert(int(i - 1) == sqlite3_bind_parameter_count(stmt));
+
+	return true;
+}
+
+template<typename... Args>
+static bool
+BindAll2(sqlite3_stmt *stmt, unsigned i, const char *value, Args&&... args)
+{
+	return Bind(stmt, i, value) &&
+		BindAll2(stmt, i + 1, std::forward<Args>(args)...);
+}
+
+template<typename... Args>
+static bool
+BindAll(sqlite3_stmt *stmt, Args&&... args)
+{
+	assert(int(sizeof...(args)) == sqlite3_bind_parameter_count(stmt));
+
+	return BindAll2(stmt, 1, std::forward<Args>(args)...);
+}
+
+#endif