custom filter " in like

[gebi84]

i added a custom filter which works so far, but the select is building a query with like %"var"%

for what are this '"'? without this my code works

core/system/modules/core/drivers/DC_Table.php

Line 5375 in 3a0c440

$this->values[] = '%"' . $session['filter'][$filter][$field] . '"%';

hery my issue:
i have a field date with values:
2016-10-11 13:29:29
2016-10-11 15:29:29

and now i want to filter by date "2016-10-11"

[fritzmg]

This is applied for fields where 'eval' => ['multiple' => true]. In that case, the database contains a serialized representation of the data. Thus Contao querys for %"…"%.