RE: [FormProc-developer] Validation by type

[Anthony E. <me...@an...>]

Eric,

I am not sure how I want to proceed with this as your situation seems
somewhat unique.  Do you think other users will use FormProc in a similar
manner and thus require some sort of second name which is separate from the
actual form field name.  I suppose I need to look at DBForms to understand
what it is doing exactly (I can't get to the dbforms.org site right now
though).

Regarding error messages for a particular language: this is currently part
of the FormElement class (i.e. error messages are for a complete form
element, not on a per-validator basis) but not part of the ValidatorResult.
I will look into this as soon as possible as it seems reasonable to want to
know which validator caused the error.

-Anthony

> -----Original Message-----
> From: for...@li...
> [mailto:for...@li...]On Behalf Of Eric
> Beaumier
> Sent: Thursday, January 17, 2002 10:54 AM
> To: for...@li...
> Subject: [FormProc-developer] Validation by type
>
>
>
> Hi Anthony,
>
> Actually FormProc works by mapping distinct name to the XML file.
> To avoid to create as much of entries in this XML file as we have in
> a web form, we use the "element" as a kind of validation TYPE and
> we do the mapping for the validation.
>
> Used in DBForms it can looks like :
>
> <db:textField fieldName="phoneWork" fieldValidator="phoneCanada"/>
> <db:textField fieldName="phoneHome" fieldValidator="phoneCanada"/>
> <db:textField fieldName="phoneCell" fieldValidator="phoneCanada"/>
> <db:textField fieldName="fax" fieldValidator="phoneCanada"/>
> ...
> and because DBForms generate a fuzzy name for each textfield in the form
> (looks like NAME="f_0_0@root_4")
> we can't use it anayway.
>
>
> <element name="phoneCanada">
>    <validator type="group">
>      <validator type="expression">
>        <pattern>^[0-9]{10}$</pattern>
>        <error lang="en">The % is invalid.</error>
>        <error lang="fr">Le % est invalide.</error>
> 	   <error lang="sp">El % es inválido.</error>
>      </validator>
>      <validator type="expression">
>
> <pattern>^(204|250|289|306|403|416|418|450|506|514|519|604|613|647
> |705|709|778|780|807|819|867|902|905)</pattern>
>        <error lang="en">The % has a invalid Canada area code.</error>
>        <error lang="fr">Le % a un indicatif régional Canadien
> invalide.</error>
> 	   <error lang="sp">El % tiene inválido Canadiense un código de
> área.</error>
>      </validator>
>    </validator>
> </element>
>
> Here, when we will retrieve the error message we will replace the
> "%" by the
> appropriate expression
> (ex: "The home phone has a invalid Canada area code") in our DBForms
> Interceptor.
>
> For this reason, we can't validate the ArrayList correctly
> because we don't
> know
> which one is in error with the isValid("phoneCanada") method.
>
> 		ArrayList formDataList = new ArrayList();
> 		formDataList.add(new FormData("phoneCanada",
> request("phoneWork")));
> 		formDataList.add(new FormData("phoneCanada",
> request("phoneHome")));
> 		formDataList.add(new FormData("phoneCanada",
> request("phoneCell")));
> 		formDataList.add(new FormData("phoneCanada",
> request("fax")));
>
>
> I can perhaps suggest one of two solutions for this problem.
>
> (1) Better one :
>
>     Adding a new property to the FormData class (ex: String context)
>     Like this, when we will retrieve the Enumeration of the errors by
> 	the getErrorElements() of ValidationResultMap class, we will enable
> 	to retrieve the context of which "phoneCanada" validation
> are in error...
>
> 		ArrayList formDataList = new ArrayList();
> 		formDataList.add(new FormData("phoneCanada",
> request("phoneWork"),
> "phoneWork"));
> 		formDataList.add(new FormData("phoneCanada",
> request("phoneHome"),
> "phoneHome"));
> 		formDataList.add(new FormData("phoneCanada",
> request("phoneCell"),
> "phoneCell"));
> 		formDataList.add(new FormData("phoneCanada",
> request("fax"), "fax"));
>
>
>
> (2) Allowing the "validate" method in Form class as "public" to do the
> validation
>     one by one ...  But first one is far better.
>
> 	"public ValidationResult validate(FormData formData) throws
> Exception{"
>
> 	// phoneWork
> 	ValidationResult results = form.validate(new
> FormData("phoneCanada",
> request("phoneWork"));
>     if(result.isValid() {}
> 	// phoneHome
> 	ValidationResult results = form.validate(new
> FormData("phoneCanada",
> request("phoneHome"));
>     if(result.isValid() {}
>     ...
>
>
>
>
> 	Finnally, I did not have enough time to look the code for
> retrieving error
> message for
> 	a specific validator...  But is it possible to retrieve
> error message for a
> specific
> 	language?
> 	...
> 	<validator type="expression">
>        <pattern>^[0-9]{10}$</pattern>
>        <error lang="en">The % is invalid.</error>
>        <error lang="fr">Le % est invalide.</error>
> 	   <error lang="sp">El % es inválido.</error>
>      </validator>
> 	 ...
>
>
>
>
> Thanks again.
>
>
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