The problem is that you're using qw in the list that you're passing to add_columns. What you're actually passing is the list ( 'id', 'token', 'old_invoice', 'date', '=>', '{data_type', '=>', \'datetime\'}' )

In order to pass a list of column-name => hashref pairs, you'll need to write it like this:

__PACKAGE__->add_columns(id    => { },
                         token => { },
                         old_invoice => { },
                         date  => {data_type => 'datetime'}
                        );

[download]

Alternatively, you can pass a list of the plain column names (no hashrefs) and specify the date column type later: 

__PACKAGE__->add_columns(qw/id
                            token
                            old_invoice/);

__PACKAGE__->add_columns(date => {data_type => 'datetime'});

[download]

Update: Fixed typos

In reply to Re: Selecting date using DBIx::Class and InflateColumn by friedo
in thread Selecting date using DBIx::Class and InflateColumn by nybble_1

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