我有以下表单可供发布,轨道字段在我的发布模型中被接受为嵌套属性。
<%= form_for(@release) do |f| %>
<%= f.hidden_field :user_id, :value => current_user.id, :class => "text" %>
<%= f.text_field :title, :class => "text" %>
<%= f.fields_for :tracks do |builder| %>
<%= render 'track_fields', :f => builder %>
<% end %>
<% end %>
我的发布模型包含:
accepts_nested_attributes_for :tracks, :reject_if => lambda { |a| a[:name].blank? }, :allow_destroy => :true
accepts_nested_attributes_for :releases_tracks
before_save :order_tracks
before_update :order_tracks
def order_tracks
releases_tracks.each { |t| t.position = track_attributes.position }
tracks.each { |t| t.user_id = user_id}
tracks.each { |t| t.label_id = label_id}
end
def track_attributes=(track_attributes)
track_attributes.each do |attributes|
tracks.build(attributes)
artists_tracks.build(attributes)
end
end
一切都运作良好,除了下面的一行,我试图获取在表单的fields_for部分中输入的位置值。我可以访问父表单中的值,例如user_id,但是如何访问子值?
releases_tracks.each { |t| t.position = track_attributes.position }
全部谢谢!
(注意:我不想为此使用acts_as_list)
答案 0 :(得分:0)
尝试使用:
releases_tracks.each { |t| t.position = track_attributes[:position] } or
releases_tracks.each { |t| t.position = track_attributes["position"] }