Hi again,
First, thank you very much for your help.
I have a follow-up question. I want to add a LikeIt button, that
people can press to say they like something.
Then, I print a counter on the page.
I followed your code for comments and just added:
belongs_to :loveable, :polymorphic => :true, :counter_cache => true
named_scope :lover, lambda {|user| { :conditions => ['owner_id = ?',
user.id] } }
named_scope :loves, lambda {|item| { :conditions => ['loveable_id = ?
AND loveable_type = ?', item.id, item.class.to_s] } }
and
def create_permitted?
acting_user.signed_up? && (owner_is? acting_user) &&
Likeit.lover(acting_user).loves(loveable).empty?
end
To make sure every user can only an item once.
It kinda works, except for this:
If I do not rerender the button after it is clicked, it can be clicked
multiple times.
If I look in the server log, the create_permited? seems to be called
when the page is rendered, not when the
Likeit field is created.
Is it normal or I am doing something wrong?
How to make sure create_permitted? is called before saving anything to
the database?
Thanks again. Your help is very much appreciated.
If it can be useful, I would be very happy to write a recipe on
comments and likeit buttons, once I have understood.
Best regards,
Nicolas.
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