Re: Assign the bean value to a variable defined in template

Friday, January 18, 2008, 4:37:15 PM, Samuel Viana wrote:

> Hi
>
> I'm new to FreeMarker and I am trying to capture the content of a bean to a
> variable defined in the template. The purpose of this is to give the designers
> the opportunity to easily create the templates providing only a macro that calls
> that variable and renders a table row with the bean's contents, contents that
> are holded in a variable that is human-readable, the problem is that the bean's
> is passed through an attribute that comes from a Struts action - truthly
> speaking, the bean is stored in an HashMap that is acceded in this way:
>
> <#assign
> lavazza2200>content.getProduct("106738243-20000212")</#assign>
>
> "content" is the map that cames from the Structs Action class, and in 
> here the argument of the getProduct method is the key to fetch
> the bean, that should be stored in the variable named "lavazza20".
> This way, the web designers only need to do:
>
> <@table_row prod="lavazza2200"/>

That should be <@table_row prod=lavazza2200 />. Like in JavaScript,
you must not use quotation marks around a variable reference.

> in order to a draw a table row with the bean's contents.
>
> The problem is that what the variable "lavazza2200" really holds is not the bean
> itself, but rather the output of its toString method. Anyway, I was forced to
> use the syntax
>
>  <#assign [variablename]contents_for_the_variable></#assign>

(That does output capturing, so you will get the result formatted to
text, as you have noted.)

> since this syntax is not allowed:
>
> <#assign lavazza2200 = ${content.getProduct("106738243-20000212")} />

The correct syntax is simply:

  <#assign lavazza2200 = content.getProduct("106738243-20000212")>

That is, no ${} is needed or allowed there. Inside <#...> and ${...}
the basic approach of the syntax is similar to an usual programming
language syntax (like JavaScript), while outside them you have static
text.

> Can you suggest me a way allowed by Freemarker to store the bean inside a
> variable that its defined in the template ? Remember that what the Struts Action
> is sending to the template is a Map, that contains the bean that I want to store
> in a certain variable.
>
> Best regards,
> Samuel

-- 
Best regards,
 Daniel Dekany


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