Rails簡單表單關聯不保存

RoR和Simple_form的新功能。我有一個簡單的設置，我有兩個類之間的關聯。我使用的表單不是更新/保存，而是始終將該值設置爲空白。看着文檔和其他帖子，我做錯了什麼？Rails簡單表單關聯不保存

類

class Annotation < ApplicationRecord 
has_many :comments, dependent: :destroy 
belongs_to :documenttype 
has_attached_file :file, styles: { large: "600x600>", medium: "500x500>", thumb: "150x150#" }, default_url: "/images/:style/missing.png" 

accepts_nested_attributes_for :documenttype 

validates_attachment_content_type :file, content_type: ['image/jpeg', 'image/png', 'image/gif', 'application/pdf'] 
validates :name, presence: true, uniqueness: true, length: { minimum: 10, maximum: 50 } 
    validates :description, length: { minimum: 20, maximum: 500 } 
    validates :documenttype, presence: true 
    validates :file, presence: true 

end 

class Documenttype < ApplicationRecord 
    has_many :annotations 
    validates :name, presence: true, uniqueness: true, length: { minimum: 5 } 
end

PARAMS

def annotation_params 
params.require(:annotation).permit(:name, :description, :file, :active, :documenttype) 
end 

def documenttype_params 
params.require(:documenttype).permit(:name, :description, :active, annotation_attributes: [:id, :name]) 
end

這是形式...

<div class="container-fluid"> 
    <div class="row"> 
    <div class="col-md-6"> 
     <%= simple_form_for @annotation, html: { class: 'form-horizontal', multipart: true }, 
     wrapper: :horizontal_form, 
     wrapper_mappings: { 
      check_boxes: :horizontal_radio_and_checkboxes, 
      radio_buttons: :horizontal_radio_and_checkboxes, 
      file: :horizontal_file_input, 
      boolean: :horizontal_boolean 
      } do |f| %> 

      <%= f.error_notification %> 

      <%= f.input :name, placeholder: 'Enter name' %> 

      <%= f.input :description, placeholder: 'Description' %> 

      <%= f.association :documenttype %> 

      <%= f.input :active, as: :boolean %> 

      <% if @annotation.file.blank? %> 
      <%= f.input :file, as: :file %> 
      <% else %> 
      <% end %> 

      <%= f.button :submit %> 
      <% unless @annotation.file.blank? %> 
      <%= link_to ' Annotate', annotations_path, :class => "btn btn-default" %> 
      <% end -%> 

     <% end %> 

     <p><br><%= link_to 'List' , annotations_path %></p> 

    </div> 

     <div class="col-md-6"> 
     <% unless @annotation.file.blank? %> 
      <%= image_tag @annotation.file.url(:large) %> 
     <% end %> 
     </div> 

    </div>

來源

2016-09-05 Dimitri de Ruiter

我想，在控制器動作的某個地方，您可能使用了@ annotation.save而不是使用@ annotation.save！來引發驗證錯誤。這樣你就會知道什麼是防止對象保存的錯誤。 –

venkat，試圖改變...創造！沒有解決 –

我找到了解決辦法;我需要將:documenttype_id添加到annotation_params。

來源

2016-09-05 15:36:58

Rails簡單表單關聯不保存

回答

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