multiple vaildation rules on same column in schema possible?

Hello
i want to know is this possible to add multiple validation rules on same column of a table
and if none of the rules satisfied it shud not save and if it satisfy anyone rule we allow it to save?
like
<validation>
<rule field="name" name="invalidvideolink" type="preg_match" rule="/((|<a.*>?)http:\/\/([\\w+?\\.\\w+]+[a-zA-Z0-9\\~\\!\\@\\#\\$\\%\\^\\*\\(\\)_\\-\\=\\+\\?\\.\\:\\;\\\’\\,])\/watch\\?v=([-\\_!£$%^&*()+=,\\\\.?`¬|\\w]*)(<\/a>)?)/i" message="nvalid video link specified" />
<rule field="name" name="invalidvideolink" type="preg_match" rule="/((|<a.*>?)http:\/\/[Vv][Ii][Dd][Ee][Oo]\\.[Gg][Oo][Oo][Gg][Ll][Ee]\\.(.*?)\/videoplay\\?docid=([-\\\\_!£$%^&*()+=,.\/?`¬|\\w]*).*)|<\/a>?/" message="Invalid video link specified" />
</validation>

i can do that in validation in code but curious about is this possible in xpdo validation

some one give me wisdom plz

thax

You can definitely define multiple rules per column; that is the point of the alias. As for the validation, you would need to run validation yourself and use the results to determine whether or not to save; the built-in xPDO::OPT_VALIDATE_ON_SAVE requires all validation rules to pass before saving, and the xPDOObject::validate() method returns false if any rule fails. In fact, I think you would have to process the rules yourself by providing your own xPDOValidator class that would handle this logic atm. However, I think the core xPDOValidator class could easily be refactored to provide the information you need (i.e. results per rule/alias instead of per column as it is now) if you would like to enter an improvement ticket at http://bugs.modx.com/projects/xpdo/issues