Re: Getting access to parent model

Oops, multiple errors in this message. Please disregard.

First, there's junk at the bottom of the messsage I didn't intend to send.

Second, adding parentheses fixes one problem: ${my_variable.asDate()}

Third, since the parent model is the one creating the AsDate method 
class, it can just pass itself to that class in the constructor. Duh.

Everything works now. Never mind...


On 1/7/2011 5:13 PM, Chris wrote:
> I'd like to be able to do something like this in a template:
>
> // shows raw text
> ${my_variable}
>
> // converts to a date type
> ${my_variable.asDate)
>
> // runs some other arbitrary function on my_variable
> ${my_variable.asSomethingElse)
>
> I got it to work (partially) by making "my_variable" a class that
> implements both TemplateScalarModel and TemplateHashModelEx. I can get
> both ${my_variable} and ${my_variable.whatever} to return scalars.
>
> Now the tricky part: I need to return the hash values as objects that
> implement TemplateMethodModelEx, and those methods need to get access to
> the text of my_variable.
>
> Unfortunately, Freemarker throws an error when it sees the
> TemplateMethodModelEx ("Expecting a string, date or number here"), and I
> haven't figured out how to get access to the parent model from within my
> method so I can get the text value of "my_variable".
>
> Is what I'm trying to do possible?
>
>
>
>
>
>
>
> I think I could implement the bottom two by making my_variable a
> TemplateHashModel and passing the string value to be converted to it.
>
> The trouble is the top one. FreeMarker throws an exception rather than
> just calling toString() on it. ERROR: Error on line X, column Y in
> /results Expecting a string, date or number here, Expression item is
> instead a com.MyHashModel.OrWhatever.
>
> I'd be happy to do it using ? syntax instead: ${my_variable?asDate}, but
> you can't create your own builtins (according to our exchange on this
> topic Dec 9, 2010).
>
> Is there any way to
>
>
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------------------------------------------------------------------------------
Gaining the trust of online customers is vital for the success of any company
that requires sensitive data to be transmitted over the Web.   Learn how to 
best implement a security strategy that keeps consumers' information secure 
and instills the confidence they need to proceed with transactions.
http://p.sf.net/sfu/oracle-sfdevnl