Syntax error or access violation: 1055 Expression #8 of SELECT list is not in GROUP BY clause and contains nonaggregated column

Question

i tried the CakePHP 3.x \"Bookmaker Tutorial\" and i followed the instruction step by step. Unfortunately, at the end of the first chapter i get the attached error:

Answer 1

Just stumbled on the same problem.
A simple way to make the tutorial "work" without changing the query could be to reset sql_mode in config/app.php :

'Datasources' => [
    'default' => [
        'className' => 'Cake\Database\Connection',
        'driver' => 'Cake\Database\Driver\Mysql',
        'persistent' => false,
        'host' => 'localhost',
        ...
        'init' => ["SET sql_mode = ''"],
    ],

While this should makes things work, it is probably not recommended in real life cases.