[Zope] meaning error message

[Jonothan Farr]

> My postgres database tables are setup to have unique index therefore no
> duplicates are not allow.  If duplicate occur the db will return an
> error.  Problem  is when i try to submit duplicate data to the db i get
> an ugly error message.  Is there anyway i can output my own error
> message for example "this data exist on the db already, please do not
> submit again" ?  I don't want that error message because user's won't
> understand what is talking about.


I would solve this in the submit action by doing a select for the data before
doing an insert.

Example:

(form_html)

<form action="submit_html" method=post>
....
</form>

(submit_html)

<dtml-in select_data>
<dtml-if sequence-start>
<dtml-var error_message>
</dtml-if>
<dtml-else>
<dtml-call insert_data>
</dtml-in>

-jfarr

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