newForm.jsp (partly) -------------------- <logic:equal parameter="action" value="thread"> <!-- Create new thread --> <h1>New Thread</h1>
<html:form action="/CreateThread">
<html-el:hidden property="author" value="${user.nickname}"/>
<html-el:hidden property="categoryId" value="${param.category}"/>
Topic: <html:text property="topic" value="" size="20" maxlength="40" /><br/>
Message: <html:textarea property="message" value="" cols="60" rows="10" /><br/>
<html:submit value="Create" />
</html:form>
</logic:equal>
struts-config.xml (partly) ------------------------- <!-- Multi purpose form for creating stuff --> <form-bean name="createForm"
type="org.apache.struts.validator.DynaValidatorActionForm">
<form-property name="author"
type="java.lang.String" />
<form-property name="categoryId"
type="java.lang.Integer" />
<form-property name="threadId"
type="java.lang.Integer" />
<form-property name="topic"
type="java.lang.String" />
<form-property name="message"
type="java.lang.String" />
<form-property name="replyto"
type="java.lang.Integer" />
<form-property name="categoryName"
type="java.lang.String" />
<form-property name="categoryDescription"
type="java.lang.String" />
</form-bean>
</form-beans><!-- Display new user|category|thread|message form -->
<action path="/NewForm"
forward=".view.newForm" /><!-- Process new Category -->
<action path="/CreateCategory"
type="manegen.forum.CreateCategoryAction"
name="createForm"
scope="session"
input="input">
<forward name="input" path="/NewForm.do?action=category" />
<forward name="success" path="/Home.do"/>
</action>tiles-defs.xml (partly) ----------------------- <tiles-definitions>
<!-- main layout -->
<definition name=".layout.main" path="/layout/layout.jsp">
<put name="title" value="Manegen Forum"/>
<put name="body" value=""/>
</definition> <!-- views = extensions to the main layout -->
<definition name=".view.newForm" extends=".layout.main">
<put name="body" value="/newForm.jsp" />
</definition></tiles-definitions>
This is really bothering me, so any ideas would help.
Best regards, Fredrik
Fredrik Boström wrote:
Hi all.
I'm working on a small message-forum project and have stumbled upon many problems along the way, most of which I've been able to more or less solve. To the most recent problem, though, I haven't found any solution despite lots of googling.
I'm using a DynaValidatorActionForm to validate input from a form (actually several forms). The form is one of three forms in the same jsp-page. The form to be used is determined by a logic-tag that looks for an action-parameter and ckecks its value. If the value is "thread" the thread-form is displayed. So the URI to display the thread-form would be /NewForm.do?action=thread.
I also have to pass another parameter to the thread-form, namely to which category the thread belongs. This parameter's value is inserted into a hidden field in the form. So, the final URI would be /NewForm.do?action=thread&category=1.
Other fields in the form are - a hidden username field, value from user session bean - thread topic (input type="text") - message (input type="textarea")
So, the populated form (but not yet filled in by the user) would look like this:
<form name="createForm" method="post" action="/forum_dev/CreateThread.do">
<input type="hidden" name="author" value="Joe"> <-- from bean
<input type="hidden" name="categoryId" value="1"> <-- from request parameter
Topic: <input type="text" name="topic" maxlength="40" size="20" value=""><br/>
Message: <textarea name="message" cols="60" rows="10"></textarea><br/>
<input type="submit" value="Create">
</form>
When submitting the form, I want it to be validated and if the validation fails, the user is returned to the same page with error-messages displayed. This is currently done by using the following action (which is the action the form submits to):
<action path="/CreateThread" type="manegen.forum.CreateThreadAction" name="createForm" scope="request" input="input"> <forward name="input" path="/NewForm.do?action=thread" /> <forward name="success" path="/ShowMessages.do" /> <forward name="failure" path="/ShowThreads.do" /> </action>
Validation works fine (when it's failing :), the validator returns to the right page with the right form visible, messages display as they should and everythings seems to be a-ok.
But, the problem is that when the validation fails, all form values (except "author" which comes from the session bean) are lost. This is surely due to the fact that control passes through another action before getting back to the form page. The values somehow get lost on the way.
Is there any way to keep the form data through this process? I've tried putting scope="session" in the /CreateThread action but with no success. Another alternative would be to maintain a session bean which contains fields for the current category, thread etc, but that bean would demand lots of updating all the time. Any simple solution to this problem?
Grateful for any suggestions.
Regards, Fredrik
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