[eluser]beemr[/eluser]
First off, great library. I used to use Active_Record_Mod but I am loving the thought that you've put behind this.
So now to my problem. I have a custom validation on an unrequired field so it is set to "always_validate". Since the field isn't required, it's initial value in the database is NULL. Now, even if the field is left empty, it will overwrite the NULL to '' upon calling save(). All subsequent attempts to run the custom validation will fail since datamapper will unset unchanged values (as it should).
To solve for this, I added a check against NULL stored values when the submitted value is empty.
Added at line 1002 of datamapper.php:
Code:
if ($this->{$field} === $this->stored->{$field} ||
(NULL === $this->stored->{$field} && empty($this->{$field})))
This way I can freely update the whole model without breaking my custom validation rule. What do you think?
(For what it's worth, the custom rule created a requirement dependency based on the value of another field.)
