如果我有两个表,users
并且blocked_users
,我将如何定义从blocked_users
to的关系users
?
例如,
class User < Sequel::Model
one_to_many :blocked_users, :key=>:source_id
one_to_many :blocked_by_users, :key=>:target_id, :class => BlockedUser
end
我会在这里放什么?:
# table => blocked_users, fields => "source_id", "target_id"
Class BlockedUser < Sequel:Model
#fail => belongs_to :blocking_user_account, :class => User, :primary_key => :source_id
#fail => belongs_to :blocked_user_account, :class => User, :primary_key => :target_id
end
我如何User
从模型中引用BlockedUser
模型?
我尝试了下面的修复,但对以下错误感到困惑;BlockedUser 类重组如下:
class BlockedUser < Sequel::Model
many_to_one :blocking_user, :class=>:User, :primary_key => :source_id
many_to_one :blocked_user, :class=>:User, :primary_key => :target_id
end
我收到以下错误:
.9.3p0 :003 > BlockedUser.all.first.blocked_user
INFO - (0.000427s) SELECT * FROM `blocked_users`
NoMethodError: undefined method `blocked_user_id' for #<BlockedUser @values={:id=>1, :source_id=>1, :target_id=>2}>
但是,这确实会执行适当的查询:
class BlockedUser < Sequel::Model
many_to_one :source, :class=>:User
many_to_one :target, :class=>:User
end
BlockedUser.all.first.source