On 18 September 2011 19:26, Jordan F. <[email protected]> wrote:
> In my app, User objects can follow each other, and be followed. The two
> relationships are distinct.
>
> I'm seeing that when I set `user_a.follows << user_b` that
> `user_b.followed_by.count` still == 0. Why?
I have not looked at your code in detail (no time at the moment) but
have you tried reloading user_b from the db again? Possibly the one
you have in memory will not know about the extra connection.
Colin
>
> When I play in the console, I see:
>
> [code]
> $ jordan = User.new(:name=>"Jordan")
> => #<User id: nil, name: "Jordan">
> $ matt = User.new(:name=>"Matt")
> => #<User id: nil, name: "Matt">
> $ matt.followers << jordan
> => [#<User id: nil, name: "Jordan">]
> $ matt.followers.first
> => #<User id: nil, name: "Jordan">
> $ jordan.friends.first
> => nil
> $ matt.save
>
> SQL (14.1ms) INSERT INTO "users" ("name") VALUES (?) [["name",
> "Matt"]]
> SQL (0.3ms) INSERT INTO "users" ("name") VALUES (?) [["name",
> "Jordan"]]
> SQL (0.4ms) INSERT INTO "followings" ("followee_id", "follower_id")
> VALUES (?, ?) [["followee_id", nil], ["follower_id", 2]]
> => true
>
> [/code]
>
> My objects are defined as:
>
> [code]
> class User < ActiveRecord::Base
> has_many :follower_followee_rel,
> :class_name => "Following",
> :foreign_key => 'followee_id',
> :dependent => :destroy
> has_many :friends,
> :through => :follower_followee_rel,
> :source => :followee
> has_many :followee_follower_rel,
> :class_name => 'Following',
> :foreign_key => 'follower_id',
> :dependent => :destroy
> has_many :followers,
> :through => :followee_follower_rel,
> :source => :follower
> end
>
> class Following < ActiveRecord::Base
> belongs_to :followee,
> :class_name => 'User'
> belongs_to :follower,
> :class_name => 'User'
> end
> [/code]
>
> Totally ignoring the second half of the relationship.
>
> No errors are raised. What's going on?
>
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