If you know grails, there is a feature like this: <% user.name? %>
that prevents to chek if the value is null or not.
In rails view I have to do
<% if user.name %>
<%= user.name %>
<% end %>
to display user.name if it is not nil.
There is a shortcut or some feature like that in grails?
And if user can potentially be nil, you can also use
user.try(:presence) || “”
This will avoid “undefined method ‘presence’ for nil:NilClass” errors.
On 10 Sep 2010, at 10:27, Christiaan Van den Poel wrote:
<% end %>
to display user.name if it is not nil.
There is a shortcut or some feature like that in grails?
Best regards
Peter De Berdt
Msan M. wrote:
If you know grails, there is a feature like this: <% user.name? %>
that prevents to chek if the value is null or not.
In rails view I have to do
<% if user.name %>
<%= user.name %>
<% end %>
to display user.name if it is not nil.
There is a shortcut or some feature like that in grails?
<% if user && user.name %>
…
…
On 10 September 2010 09:25, Mauro [email protected] wrote:
If you know grails, there is a feature like this: <% user.name? %>
that prevents to chek if the value is null or not.
In rails view I have to do
<% if user.name %>
<%= user.name %>
<% end %>
to display user.name if it is not nil.
There is a shortcut or some feature like that in grails?
<%= user.name if user.name %> may be the most concise, or
<%= user.name if user && user.name %> if user may be nil
Colin
On 10 September 2010 09:25, Mauro [email protected] wrote:
If you know grails, there is a feature like this: <% user.name? %>
that prevents to chek if the value is null or not.
In rails view I have to do
<% if user.name %>
<%= user.name %>
<% end %>
to display user.name if it is not nil.
Not a general solution I know, but in such a situation I supply a
method of User, display_name, that returns the name or empty string
(or “Unknown” possibly, dependent on requirement).
Colin