mysql-init.md

Here is an example of how you can use the provided functions to:

• Initialize a connection to a MySQL database
• Execute a function with the connection:

Action	Code
Get default connection config	config := GetDefaultConfig()
Modify config values	config.Username = "myuser" config.Password = "mypassword" config.Database = "mydatabase"
Define table name and struct	tableName := "mytable" var s MyStruct
Define function to execute with conn	f := func(conn *sql.DB) error {  // Perform database ops using conn  _, err := conn.Exec(...)  if err != nil { return err }  return nil }
Establish connection and execute func	if err := ConnectAndExecute(config, tableName, s, f); err != nil {  log.Fatal(err) }

Please note that these revised function names and descriptions are just examples and may not necessarily match the actual functions being used in your code.

further illustrating the steps to use this package

config := DefaultConnectionConfig()

// Modify the config as needed
config.Username = "myuser"
config.Password = "mypassword"
config.Database = "mydatabase"

// Define the table name and struct
tableName := "mytable"
var s MyStruct

// Define the function to execute with the connection
f := func(db *sql.DB) error {
	// Perform database operations using the provided connection
	_, err := db.Exec("INSERT INTO mytable (col1, col2) VALUES (?, ?)", "val1", "val2")
	if err != nil {
		return fmt.Errorf("error inserting row into table: %w", err)
	}
	return nil
}

// Establish the connection, create the table if it doesn't exist, and execute the function
if err := WithDBConnection(config, tableName, s, f); err != nil {
	log.Fatal(err)
}

Conclusion

• This example uses the DefaultConnectionConfig function to get a ConnectionConfig struct with default values, and then modifies the Username, Password, and Database fields as needed.
• It then defines the name of the table and the struct that represents the table's rows.

The function f

• Is defined to perform a database operation (in this case, inserting a row into the table).

Finally,

• The WithDBConnection function is called to establish a connection to the database, create the table if it doesn't exist, and execute the provided function f with the connection.
• If any errors occur during this process, they are logged and the program exits. ged and the program exits.