Difference Between find and Where with Relationships

Question

I wouldn\'t think there is a difference when it comes to active record and finding data.

Here are my models

class User < ActiveRecord::Base
  has_         


        

Answer 1

The where is method that returns an array of objects. So, in your case try

u.each { |user| user.shows }

Answer 2

The problem is not the relationship.

 u = User.find(1) 

returns one User

 #return a Set of users. In your case its only one user.
 u = User.where("username = ?", "percent20") 

The result type is ActiveRecord::Relation --> [User, User, User]

use e.g. first to get the first User

 #returns the first user
 u = User.where("username = ?", "percent20").first

u.class.name => "User"

Answer 3

User.find(1) is retrieving a specific record with its ID, whereas User.where("username = ?", "percent20") is retrieving the set of records that match the condition.

Try:

u = User.where("username = ?", "percent20").first
u.shows