Gugubaight Gugubaight - 1 year ago 90
Ruby Question

Rails 4: Model Logic - Counting Items by a User

One quick question:

Lets assume I have an User (Devise) & Item Model. The current_user can create and mark his items. If he does, the value of

changes to

That works.

But how can I receive the number of marked Items by the

I thought something like this:

# How can I count the number of items marked?
# In addition, I don't know if it is the right solution to use joins. Correct me if I am wrong.

has_many :items

belongs_to :user

Thanks in advance for any answer! Please tell me if you need additional information.

Answer Source

I suppose you have associations between users and items ? If yes, you can simply:

current_user.items.where(is_marked: true).count
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