Setting an attribute dynamically

[Sven Richter]

Hi,

I want to set an attribute dynamically. This was my naive implementation:

(html/defsnippet role-option (str globals/template-path "admin.html") [(html/attr= :field "role_option")]

                 [option selected]

                 [(html/attr= :field "role_option")] (html/do->

                                                       (html/content (name option))

                                                       (when selected (html/set-attr :selected selected))))

This has the problem that "when" returns nil if it does not hit the condition and then do-> will try to do something with "nil" which does not work and lead to a NPE.

What is the enlive way to achieve this? Are there any code examples? I have not found anything that makes sense to me.

Best Regards,

Sven

[xavi]

Instead of

    (when selected (html/set-attr :selected selected))

you can use

    (if selected (html/set-attr :selected selected) identity)

I this should work.

Xavi

[Sven Richter]

Thank you very much, that did the trick :-)