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這可能是我失明的情況下... 不知怎的,我不能讓我的layout_positions_attributes在layout_positions到達無法取得accepts_nested_attributes在軌運行3
l = Layout.new
…
[17] pry(main)> l.layout_positions
=> []
[18] pry(main)> l.layout_positions_attributes=[{:name=>'xxx'}]
=> [{:name=>"xxx"}]
[19] pry(main)> l.layout_positions
=> [] # WTF!
[20] pry(main)> l.layout_positions.build({:name=>'xxx'})
=> #<LayoutPosition id: nil, name: "xxx", active: true, columns: nil, rows: nil, layout_id: nil, pos: -1>
[21] pry(main)> l.layout_positions
=> [#<LayoutPosition id: nil, name: "xxx", active: true, columns: nil, rows: nil, layout_id: nil, pos: −1>]
的父類:
class Layout < ActiveRecord::Base
attr_accessible :name, :active, :layout_positions_attributes
has_many :layout_positions
accepts_nested_attributes_for :layout_positions,
:reject_if => lambda { |a| a[:content].blank? },
:allow_destroy => true
validates_presence_of :name
end
並且屬性應該去的地方...
class LayoutPosition < ActiveRecord::Base
attr_accessible :name, :active, :columns, :rows, :pos
belongs_to :layout
validates_presence_of :name
end
謝謝,我知道它必須是這樣的愚蠢! – Jan