ActiveRecord array count

Question

i am trying to count an # of objects in an array using a block, like this:

cc = u.cookies.count {|n| n.opened}

This return 3, which is wrong. I went a step further, and did this:

cc = u.cookies.count {|n| false}

which should always return 0, but it returns 3!!!.

This return 0, just like it should:

[1,2,3,4].count {|n| false}

Here's my user model:

class User < ActiveRecord::Base
    has_many :cookies
end

What's going on? Thanks

xdazz · Accepted Answer · 2012-12-10 02:51:49Z

3

u.cookies is ActiveRecord::Relation, not an array.

So what ever the block is, the result won't change, you need to do:

cc = u.cookies.where(:opened => true).count

answered Dec 10, 2012 at 2:51

xdazz

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