Issue while saving the dynamic field values in the preferences

Question

I have already posted one question on the same issue. But I'm not able to solve my issue and not able to move forward in my task.

I have created a editable portlet where in the configuration page I am showing he dynamic questions which are fetching form the database. So for the same reason I am iterating my array list and creating the input fields dynamically as follows,

Iterator<String> itr = al.iterator();
 while(itr.hasNext())
 {
         String columnVal = itr.next();
         columnVal = columnVal.trim().toLowerCase();
         %>
         <aui:input name="<%=columnVal%>" type="checkbox" />
         <%
 }

With the above code the fields are creating dynamically with proper labels and seems to be fine.

When I try to save these dynamic field values in the preference I changed my input statement syntax to the proper way by adding the prefix as "preferences--" and suffix as "--" as shown below,

<aui:input name="preferences--<%=columnVal%>--" type="checkbox" />

I don't know what syntax is wrong in the above statement. But I am not able to see the label names in UI. instead of showing the proper label names for all labels it is showing <%=columnVal%> on UI.

I am using default configuration action class in my liferay-portlet.xml as mentioned below,

<configuration-action-class>com.liferay.portal.kernel.portlet.DefaultConfigurationAction</configuration-action-class>

Can any one please correct my syntax and help me to save my dynamic field values in the preferences.

Pricket

Have you verified html source generated on browser, if these input elements are having proper name with prefix as preferencess--? – Kindling

I checked in the firebug on the browser. the name attribute is showing something like this, name="_86_preferences--<%=columnName%>--Checkbox". – Pricket

What can I do now. Please suggest some thing to resolve this issue. Generally how can we give the name attribute for dynamic fields? – Pricket

Simply Use, <aui:input name='<%="preferences--"+columnVal+"--"%>' type="checkbox" /> – Kindling

Would be great if this was converted as an answer to help the community and also it would nice if @manjunathramigani can also mark as an answer the previous post which lead to this question. Thank you all. – Zhang

Answer 1

From reference link's comment section:

According to JSP 2.1 Specification multiple expressions and mixing of expressions and string constants are not permitted.

So you have to use below code in your case:

<aui:input name='<%="preferences--"+columnVal+"--"%>' type="checkbox" />

Kindling