One to Many Relationship: List of many not showing up - ruby-on-rails

Question

I have a simple one to many relationship mapping users to posts. Here is the relevant part of the schema:
create_table "users", :force => true do |t|
t.string "username"
t.string "first_name"
t.string "last_name"
t.string "email"
t.string "password"
t.string "status", :default => "User"
t.string "img_url"
t.text "bio"
t.integer "num_posts", :default => 0
t.datetime "created_at", :null => false
t.datetime "updated_at", :null => false
end
create_table "posts", :force => true do |t|
t.string "subject"
t.text "body"
t.integer "user_id"
t.integer "section_id"
t.datetime "created_at", :null => false
t.datetime "updated_at", :null => false
end
And here are the models:
class User < ActiveRecord::Base
attr_accessible :bio, :email, :first_name, :img_url, :last_name, :num_posts, :password, :status, :username
has_many :posts
has_many :comments
end
class Post < ActiveRecord::Base
attr_accessible :body, :section_id, :subject, :tag_ids, :user_id
belongs_to :user
belongs_to :section
has_and_belongs_to_many :tags
has_many :comments
end
I go into the rails console and create a new user doing User.create(attributes) and a new post doing Post.create(some attributes), assinging them to p1 and u1, respectively, then I do p1.user = u1.
Now when I do p1.user, I get a u1 object. Moreover, I can see that the user_id key is set to the key of u1 in the DB. However, when I do u1.posts, I get an empty list. How can I get a list of all of the posts that belong to a given user?

Answer 1

Ideally, when creating posts, you can create like this:
user.posts.create!({attributes})
Here in your case it could be the problem with association caching. Try
u1.reload.posts