/// <summary> /// Select an entire table and returns a list of the (T) line objects. /// </summary> /// <typeparam name="T"></typeparam> /// <param name="tableName"></param> /// <returns></returns> public List <T> SelectAll <T>(GenericDatabaseLine myLine) { string SelectUndlDataEOD = "SELECT * from " + myLine.GetTable(); using (var connection = new MySqlConnection(connectionString)) { var res = connection.Query <T>(SelectUndlDataEOD); return((List <T>)res); } }
/// <summary> /// Insert data into a table. Data is passed as a list of DB lines. /// The DB line type must (i) be a subclass of GenericDatabaseLine and (ii) match the given table columns. /// </summary> /// <param name="argTable"></param> /// <param name="argLineToInsert"></param> /* * public void Insert<T>(IDtoken id, List<T> argLineToInsert) where T : GenericDatabaseLine * { * foreach (T singleLine in argLineToInsert) * { * Insert<T>(id, singleLine); * } * } * * */ /* * public void Insert<T>(IDtoken id, T argLineToInsert) where T : GenericDatabaseLine * { * // Identify table to be addressed * string table = argLineToInsert.GetTable(); * * // Build SQL command string * //DateTime dt = (argLineToInsert as T).GetDate(); * * * string insert_table = "INSERT into " + table; * string insert_fields = "(" + joinString(argLineToInsert.GetAllFields(), " ,", false) + ")"; * string insert_values = "values (" + joinStringWithDate(argLineToInsert.GetAllFields(), " ,", true) + ")"; * string InsertUndlDataEOD = joinString(new List<string>() { insert_table, insert_fields, insert_values }, " ", false); * * // Execute SQL command * using (var connection = new MySqlConnection(connectionString)) * { * connection.Execute(InsertUndlDataEOD, argLineToInsert); * } * * } * */ #endregion // ************************************************************ // METHODS -- UPDATE // ************************************************************ #region /// <summary> /// Update data for a given set of table, ticker and date. /// Data is passed in the form of a DB line (subclass of GenericDatabaseLine). /// </summary> /// <param name="argTable"></param> /// <param name="argLineToUpdate"></param> /// <param name="updateFields"></param> public void Update(GenericDatabaseLine argLineToUpdate, List <string> updateFields) { // Identify table to be addressed string table = argLineToUpdate.GetTable(); // Construct the command string string update_dataValues = buildUpdateStringData(table, argLineToUpdate.GetDataFields()); string update_keys = buildUpdateStringKeys(argLineToUpdate.GetKeyFields()); string updateString = joinString(new List <string>() { update_dataValues, update_keys }, " ", false); // Execute the command using (var connection = new MySqlConnection(connectionString)) { connection.Execute(updateString, argLineToUpdate); } }
// ************************************************************ // METHODS -- DELETE // ************************************************************ #region Delete /// <summary> /// Delete an entire line from a table. The keys to identify the line are passed in a DB line (subclass of GenericDatabaseLine). /// </summary> /// <param name="argTable"></param> /// <param name="myLine"></param> public void EraseLine(GenericDatabaseLine myLine) { // Get string with table name string table = myLine.GetTable(); //Check date DateTime myStartDate = (myLine.Date == DateTime.MinValue) ? myStartDate = new DateTime(2013, 12, 31) : myStartDate = myLine.Date; // Build string from start date string startDateForRequest = this.buildDateString(myStartDate); // Build mySQL Delete command string string mySQLDeleteCommand = joinString(new List <string>() { buildDeleteStringData(table), buildDeleteStringKeys(myLine.GetKeyFields()) }, " ", false); // Execute the command using (var connection = new MySqlConnection(connectionString)) { connection.Execute(mySQLDeleteCommand, myLine); } }