Hi everyone,
I've been using Struts for a while, and I think it's the best thing since servlets.
Today, though, I ran into a problem that when I tried to implement with Struts, I
found the solution to be rather dissappointing. Or maybe it's just me, and I couldn't
figure out the best way to do it.
I have a JSP that lists a number of elements, and beside each element, there's a link
to another page where the user can edit this element.
I use a model class to retrieve a Vector of instances from the class that encapsulates
that element.
I use the <logic:iterate> tag to iterate over this Vector and show the elements. When
I tried to implement the link that will point to the page where the element can be
edited, I found out that the <html:link> tag has a strange way of getting the
parameters to be appened to the link. If you want to send more than one parameter then
you need to provide a Map of the parameter names and values.
Since I'm iterating over a collection, the only way to do that is to provide this Map
from the instances in this collection for every element. But that would mean that my
model (Class whose instance is in the Vector) has to know the names of the request
parameters I'm sending. Isn't that some sort of coupling between the model and the web
tier? Or am I missing something here?
I'll provide the code here to help explain my point...I've only included the element
in question.
<logic:iterate id="element" name="listSubcategoryForm" property="visibleCategories"
type="<cannot reveal package name>.SubcategoryModel">
<tr><td><html:link name="element" property="params"
page="/editSubcategory.do"><html:img border="0"
srcKey="img.edit"/></html:link></td>
</tr>
</logic:iterate>
So, I need SubcategoryModel to implement a method called getParams() to return a
java.util.Map that contains the request parameters and their values. That would
essentially mean that SubcategoryModel knows the name of the request parameters, which
is not that good.
I don't have another way to do it. Can anyone help?
Thanks in advance.
Tarek M. Nabil
Software Engineer
ITWorx
[EMAIL PROTECTED]
Free Zone, Area 7 (B),
Block (J), Nasr City,
Cairo, Egypt
TEL.: 20-2-2766226
http://www.itworx.com
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