hi guys
i have a form which has an element, "category id".
When i submit it with values, i can see param(:category) with a value
(as i print out that value in the controller's method.
Anyway, when i submit my form without selecting any category, the
method in the controller does not pick up on it.
I tried using .nil? but it doesn't work.
This is my code:
def get_subcategories
if params[:category]
puts " I M in GET SUBCATEGORIES -" + params[:category] +
'...'
@category = Category.find(params[:category])
@sub_categories = @category.sub_categories.all
else
puts "no given category id to retrieve the subcategory"
end
end
When i run the application and submit without a category value , i
notice that params[:category]
is still defined (hence printing out "I M in GET SUBCATEGORIES") when
it should not be.
I have even tried "params[:category].nil?"
Any ideas? In perl, i could test the variable for truth (IE if
($params->{'category'}) then ...
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