Passing null value into context

[Boris Horvat <ho...@gmail.com>]

Hi everyone

I have a code that generates page links based on the specified names in a
list. That block of code looks like this


                                <t:pagelink t:page="${subPage.firstValue}"
t:context="[subPage.secondValue]">
                                    ${pageName}
                                    <t:if t:test="pageNotNum">
                                        <span
class='badge'>${pageNotNum}</span>
                                    </t:if>
                                </t:pagelink>

The subPage.secondValue on occasions has an id that should be used on other
occasions it doesn't (i.e. some pages require context and others dont). Due
to this I am seeing ugly URLs like

http://localhost:8080/todolist/$N

Is it possible to somehow omit $N value?

The only thing I can think if is to have 2 blocks of code with only
differences in the context parameter. However that would be redundant in my
mind and I would like to avoid it if possible.
So is it?

Thanks

-- 
Sincerely
*Boris Horvat*

Re: Passing null value into context

[Lance Java <la...@googlemail.com>]

No, you can generate the context as normal. Just use EventContext in the
event to support a dynamic number of context values (ie 0 or 1 values).

Eg:

   <t:eventlink event="myEvent" context="prop:myContext">...</t:eventlink>

   public Object getMyContext() {
      if (someObject == null) return Collections.emptyList();
      return someObject;
   }

   void onMyEvent(EventContext ec) {
      if (ec.getCount() == 0)
     // no context
      else if (ec.getCount() == 1) {
     // context provided
     Foo myFoo = ec.get(Foo.class, 0);
doStuff(foo);
      } else {
     throw new Exception();
  }
   }

Re: Passing null value into context

[Boris Horvat <ho...@gmail.com>]

Ny server side event tyoe do you mean that I have to create link in java? I
cant just pass EventContext to context parameter of pagelink.

I tried that at it was take as a string of the EventContext toString method
On 13 Apr 2014 15:48, "Lance Java" <la...@googlemail.com> wrote:

> This can be done using EventContext as the serverside event's argument
> type. I assume using an empty list / array to represent your null case will
> achieve the desired result.
>

Re: Passing null value into context

[Lance Java <la...@googlemail.com>]

This can be done using EventContext as the serverside event's argument
type. I assume using an empty list / array to represent your null case will
achieve the desired result.