39 lines
1.6 KiB
C#
39 lines
1.6 KiB
C#
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using Microsoft.Data.Sqlite;
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using System.Globalization;
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namespace TimeTable.controll {
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internal static class SqliteTaskCommands {
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public static string select = "select uid, lfdr, start, end, text, time from tasks";
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private static CultureInfo ci = System.Globalization.CultureInfo.GetCultureInfo("de-de");
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private static string insertPrefix = "insert into tasks (";
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private static string insertIntermediate = ") values(";
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private static string insertPostfix = ");";
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private static string updatePrefix = "update tasks set ";
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private static string updateIntermediate = " where uid = ";
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private static string updatePostfix = ";";
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public static void CreateTableIfNotExists(string sqlConnection) {
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SqliteConnection con = new SqliteConnection(sqlConnection);
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con.Open();
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SqliteCommand sqliteCmd = con.CreateCommand();
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sqliteCmd.CommandText = @"SELECT name FROM sqlite_master WHERE type='table' AND name='tasks';";
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var name = sqliteCmd.ExecuteScalar();
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if (name != null && name.ToString() == "tasks") {
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return;
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}
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var cols = "lfdr INTEGER PRIMARY KEY AUTOINCREMENT,";
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string[] columns = new string[5] { "start", "end", "text", "time", "uid" };
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cols += string.Join(" VARCHAR,", columns);
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cols = cols + " Varchar";
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sqliteCmd.CommandText = "CREATE TABLE tasks (" + cols + ")";
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con.Open();
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sqliteCmd.ExecuteNonQuery();
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con.Close();
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}
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}
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}
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