CI4 Validation is_unique in properties Config/Validation

Validation Placeholders where a unique feature for Models, but have been ported to Controllers as well. So {id} now works as intended.

Input:

Code:

'perm' => 'trim|required|is_unique[permission.perm,id,$perm_id]'

Output: ' don't evaluate the variables, the output remains the same.

Code:

'perm' => 'trim|required|is_unique[permission.perm,id,$perm_id]'

Input:

Code:

'perm' => 'trim|required|is_unique[permission.perm,id,'.$perm_id.']'

Output: You have opened the string and closed it again, it works.

Code:

'perm' => 'trim|required|is_unique[permission.perm,id,4]'

If you change ' into " it will evaluate the variable.

Input:

Code:

'perm' => "trim|required|is_unique[permission.perm,id,$perm_id]"

Output:

Code:

'perm' => "trim|required|is_unique[permission.perm,id,4]"