[ucw-ticket] [ucw] #5: Javascript validation cleanup

[ucw]

#5: Javascript validation cleanup
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 Reporter:  anonymous                             |       Owner:  mbaringer
     Type:  defect                                |      Status:  new      
 Priority:  minor                                 |   Milestone:           
Component:  component-library                     |     Version:           
 Keywords:  form javascript validation validator  |  
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 The current javascript validation code in form.lisp isn't really working
 properly.
 One of the main problems I see is that since each validator has all the
 code generated seperately, if there are two validators the result of the
 second will overwrite the first one.

 Proposal:
 Change Generate-javascript to take a field, not a field and validator.
 This then loops over all the validators for that field, generating the
 checks for all of them, if any of these fail, then apply the invalid
 handler for that field, otherwise apply the valid handler.
 The valid handler and invalid handler would also become specialized on
 just the field, instead of the field and validator.

 Problem: If at some point we want the validators to do different things to
 the same field (such as error messages), then this doesn't handle it. This
 might be worked around by having the invalid-handler call a gather-error-
 messages generic function, or something along those lines.

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Ticket URL: <http://trac.common-lisp.net/ucw/ticket/5>
ucw <http://common-lisp.net/project/ucw>
UnCommon Web - A common lisp web platform supporting continuations, component oriented UI and mutiple backends.