Patrick Shainin wrote:
>
> For example, to add a check box that limits the search to rows with a
> certain condition, you could define a named scope in Model.rb like this:
>
> named_scope :my_condition, :conditions => "your sql condition here"
>
> Then in the view form, you would include:
> <%= f.label :my_condition, "Check to apply my condition" %>
> <%= f.check_box :my_condition %>
I forgot that f.check_box adds a hidden field so even unchecked, the
condition will trigger. One way to get around that is to use lambda in
the named scope and adjust what condition gets included based on the
check box value:
named_scope :my_condition, lambda { |check| "1"==check ? {:conditions=>
"your sql condition here"} : {}}
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