hi i have been looking at velocity periodically for a few months now, and although i understand what it is trying to do (define a clearer separation between controller and view) i felt that its big disadvantage was that it introduced another language/syntax for a developer/designer to learn. In view of this i decided to stay with struts, and occasionally resort to using java scriptlets in my applications !-)
i would be interested in hearing other peoples opinions on this issue, especially since struts can now integrate with velocity. i may be persuaded to use velocity in my applications thanks Martin -----Original Message----- From: Gabriel Sidler [mailto:[EMAIL PROTECTED]] Sent: 22 January 2002 17:05 To: Struts Users Mailing List Subject: Re: Velocity-Tools / Struts Will Spies/Towers Perrin wrote: > > I mean your example *displays* an array. Let's say I change your example > and instead of displaying an array I want to *edit* all elements in the > array and post the results up to struts. Here is a JSP struts example of > what we do: Velocity is a view technology like JSP, so you would use it in the exact same way you currently use your JSP templates. With Velocity your example would like this: <form name="form1" action="/app/saveEmployment.act"> <table align=center border=3 borderColor=#ffffff borderColorDark=#000000 borderColorLight=#ffffff frame=void height=390 rules=rows style="HEIGHT: 190px; LEFT: 0px; TOP: 10px; WIDTH: 700px" width=700> <tr> <th align="left"> Employee Id </td> <td align="left"> Client Id </td> <td align="left"> Work Zip Code </td> <td align="left"> Mail code </td> <td align="left"> Delete </td> </tr> #set ($empForm = $employmentForm) <!-- Velocity finds the variable automatically in the requests attributes --!> #foreach ($row in $empForm.data.rows) #set ($i = 0) <tr> <td align="left"> <input type="text" name="data.rows$i.empEmployeeId" maxlength=10 size=10/ value="$row.empEmployeeId"> </td> <td align="left"> <input type="text" name="data.rows$i.cltClientId" maxlength=10 size=10/ value="$row.cltClientId"> </td> <td align="left"> <input type="text" name="data.rows$i.workZipcode" maxlength=10 size=10/ value="$row.workZipcode"> </td> <td align="left"> <input type="text" name="data.rows$i.mailcode" maxlength=10 size=25/ value="$row.mailcode"> </td> <td align="left"> <input type="checkbox" name="markedForDelete$i"> </td> </tr> #set ($i = $i + 1) #end <tr> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> </tr> </table> <table align="center"> <td align="right"> <input type="submit" value="$html.message("button.save")"/> </td> <td align="left"> <input type="reset" value="$html.message("button.reset")"/> input type="submit" value="$html.message("button.cancel")"/> </td> </table> </form> On the Struts side nothing changes. When the form is submitted, it is processed the same way as today. The advantages are: - simpler syntax, easier to learn than JSP - stricter separation of the designer's and the developer's work. Gabe > > <html:form action="/app/saveEmployment.act"> > <table align=center border=3 borderColor=#ffffff borderColorDark=#000000 > borderColorLight=#ffffff frame=void height=390 rules=rows style="HEIGHT: > 190px; LEFT: 0px; TOP: 10px; WIDTH: 700px" width=700> > <tr> > <th align="left"> Employee Id </td> > <td align="left"> Client Id </td> > <td align="left"> Work Zip Code </td> > <td align="left"> Mail code </td> > <td align="left"> Delete </td> > </tr> > <%EmploymentForm empForm=(EmploymentForm)request.getAttribute > ("employmentForm");%> > <%for (int i=0; i < empForm.getData().getRows().length;i++) {%> > <tr> > <td align="left"> > <input type="text" name="data.rows[<%=i%>].empEmployeeId" > maxlength=10 size=10/ value="<%=empForm.getData().getRows > ()[i].getEmpEmployeeId()%>"> > </td> > <td align="left"> > <input type="text" name="data.rows[<%=i%>].cltClientId" maxlength=10 > size=10/ value="<%=empForm.getData().getRows()[i].getCltClientId()%>"> > </td> > <td align="left"> > <input type="text" name="data.rows[<%=i%>].workZipcode" maxlength=10 > size=10/ value="<%=empForm.getData().getRows()[i].getWorkZipcode()%>"> > </td> > <td align="left"> > <input type="text" name="data.rows[<%=i%>].mailcode" maxlength=10 > size=25/ value="<%=empForm.getData().getRows()[i].getMailcode()%>"> > </td> > <td align="left"> > <input type="checkbox" name="markedForDelete[<%=i%>]"> > </td> > </tr> > <%}%> > <tr> > <td align="left"> </td> > <td align="left"> </td> > <td align="left"> </td> > <td align="left"> </td> > <td align="left"> </td> > </tr> > </table> > <table align="center"> > <td align="right"> <html:submit> <bean:message key="button.save"/> > </html:submit> > </td> > <td align="left"> <html:reset> <bean:message key="button.reset"/> > </html:reset> > <html:cancel> <bean:message key="button.cancel"/> </html:cancel> > </td> > </table> > </html:form> > > We go outside the struts tags here because in the 1.0 version the iterate > tag does not do this properly ( but the struts engine does ). Note in the > above how elements are generated as index ( [n] ) elements. The > ActionForm's would contain indexed properties in order for this to work. > > What would the velocity equivalent of the above look like? > > _______________________ > Will Spies > Towers Perrin > Phone: (215)246-7145 > e-mail: [EMAIL PROTECTED] > > -- > To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> -- Gabriel Sidler Software Engineer, Eivycom GmbH, Zurich, Switzerland -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> ** For great Emap magazine subscription & gift offers visit http://www.emapmagazines.co.uk ** -------------------------------------------------------------------------------- The information in this email is intended only for the addressee(s) named above. Access to this email by anyone else is unauthorised. 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