Question

How can I add a parameter to an a4j:commandLink? The parameter’s always null when I check in debug mode.

webcode:

<a4j:form>
    <a4j:commandLink reRender="content" action="#{surveyEvaluationBean.doDetailEvaluation}">
        <f:param name="question" value="#{result.question.pK.longValueAsString}" />
        <h:graphicImage url="/survey/img/cloverleaf.jpg" styleClass="srv-analysis-cloverleaf" />
    </a4j:commandLink>
</a4j:form>

bean:

HttpServletRequest request = (HttpServletRequest)FacesContext.getCurrentInstance().getExternalContext().getRequest();
    String param = request.getParameter("question");

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I just found the error. There’s nothing wrong with the a4j-components, the error was the following: I couldn’t create the question-object correctly. So the PK was really null. I’m sorry for wasting your time guys.

Answer 1

I just found the error. There’s nothing wrong with the a4j-components, the error was the following: I couldn’t create the question-object correctly. So the PK was really null. I’m sorry for wasting your time guys.