This seems to be related to 0009979.

I have same problem with 1.1.6 stable and same with mantisbt-1.1.6-2009-04-14-master-1.1.x-4593490.zip

I am not seeing this in master-1.1.x HEAD. Can I mark it resolved?

Hi,

The error seems to exist in master-1.1.x HEAD (45934909ad91f08127876f69dbde381a40ae843a).

The function custom_field_validate($p_field_id, $p_value) returns false when $p_value is null and $t_type is CUSTOM_FIELD_TYPE_DATE.
For other types, though, the function returns true when $p_value is null.

--
I should have written that (1) I use PHP 5.2.1 and (2) the error is thrown at line 97 of bug_report.php.

The problem still exists in version 1.1.7. To solve the problem I have changed in file core/custom_field_api.php the function custom_field_validate. The case CUSTOM_FIELD_TYPE_DATE has to be adapted from
$t_valid &= ( $p_value !== false ) && ( $p_value > 0 ) ;
to
$t_valid &= ( $p_value == NULL ) || ( ( $p_value !== false ) && ( $p_value > 0 ) );

Tested the workaround provided from maximini, works. Well.. at least i can submit new issues again. ;)

The solution suggested in 0010184:0021684 seems to work.

Thanks for sharing the fix maximini (fix applied to v1.1.7).

I've replicated both the problem and the resolution in both 1.1.x and 1.2.x. Fix committed to master-1.1.x and master branches.

I just upgraded to Mantis 1.1.7 from 1.1.6 in attempts to correct the inability to update custom date fields. That problem is fixed, but this problem and the fix suggested in 0010184:0021684 didn't help me with my optional custom date fields. With the code fix in place, I still get Application Error 1303 when I try to submit a new bug where I did not complete the optional due date field.

I also have the LongCF plugin installed, which may or may not be interacting with this (not sure). But I also noticed that my optional Checkbox ON/OFF field that comes as part of the LongCF package also gets the same error now if I don't check the box and put some value in this field. Of course, that defeats the purpose of a checkbox field if I always have to check it.

I am running php 5.2.6-1 on Debian Lenny with kernel 2.5.26-2 on AMD 64-bit.

For now I had to put a blanket "return true" statement as the first line in the custom_field_validate function in order to bypass all validation checking as there appears to be something more wrong with this custom field validation than just date fields (like an odd interaction with LongCF plugin that I'm not able to pin down).

As to the LongCF not working with date validation see this http://forum.morinie.fr/mantis/read.php?6,4051 maybe it helps.