Conditional transforms

[Toni Tuominen]

Hey,

I would like to have a transform that leaves the content in the template alone if the value passed to the transform is nil. How should I go about implementing this?

Example:

(defaction foo [text]

  ["#bar"] (em/maybe-content text)

So if text is nil the content in #bar is left alone.

Thanks in advance,

Toni

[Creighton Kirkendall]

I think I would create a nil transform that does nothing.

(defn maybe-content [val] 
    (if 

(em/trans [pnod] ))

(defaction foo [text]

   ["#bar"] (if (nil? text) 
                (nil-trans)

                (em-context
   

 

--
 
 
 

[ckirkendall]

Sorry hit enter on accident.

(defn maybe-content [val]

      (if (nil? val)

          (em/trans [pnod] )

          (em/content val)))

Note: em/trans is a macro for creating custom transforms, by passing an empty body basically you are creating nil transform.

CK

[Toni Tuominen]

Thanks, worked like a charm. Also thanks for writing enfocus, it's awesome.

- Toni