Question

我正在尝试将多个具有相同名称的字段保存到数据库记录

中

这就是我现在所拥有的：

<%= form_for @complaint, url: {action: 'create'}, :html => {:multipart => true} do |f| %>
  <%= f.label :complaint_info, 'Describa lo que sucedió' %>

  <%= f.cktext_area :complaint_info, :class => 'someclass', :ckeditor => {:language => 'us', :toolbar => 'mini'}, tabindex: '-1' %>

  <%= f.fields_for :witnesses do |witnesses_form| %>
        <%= witnesses_form.label :name, '¿Hay testigos?' %>
        <%= witnesses_form.text_field :name, placeholder: 'Escriba el nombre del testigo', tabindex: '-1' %>
        <%= witnesses_form.label :phone, 'Número de teléfono del testigo' %>
        <%= witnesses_form.text_field :phone, placeholder: 'Escriba el número de teléfono' %>

        <%= witnesses_form.label :name, '¿Hay testigos?' %>
        <%= witnesses_form.text_field :name, placeholder: 'Escriba el nombre del testigo', tabindex: '-1' %>
        <%= witnesses_form.label :phone, 'Número de teléfono del testigo' %>
        <%= witnesses_form.text_field :phone, placeholder: 'Escriba el número de teléfono' %>
  <% end %>


<% end %>

在控制器中：

  def new
    @complaint = Complaint.new
    @complaint.witnesses.build
  end

  def create
    @complaint = current_user.complaints.build(complaint_params)
    if @complaint.save

      redirect_to dashboard_complaint_path(@complaint)
    else
      render 'new'
    end
  end

  private

  def complaint_params
    params.require(:complaint).permit(:complaint_info, witnesses_attributes: [:name, :phone])
  end

我想要做的是为用户提供添加多个证人的选项，并将每个证人保存到数据库中的新记录中。

编辑：

以下是模型：

诉：

class Complaint < ActiveRecord::Base
  belongs_to :user
  has_many   :witnesses

  accepts_nested_attributes_for :witnesses
end

和见证人：

class Witness < ActiveRecord::Base
  belongs_to :complaint
end

EDIT2：

控制器返回的内容

Started POST "/dashboard/complaints" for 127.0.0.1 at 2015-06-10 12:14:10 -0400
Processing by Dashboard::ComplaintsController#create as HTML
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"0ek0KaaYdUR1ktwUOLCeEdAG0fB63WOIJIIXL7ASM1zMbXWDHyCcXce82ijpLJRmneHs39Um9EehL/GWJkPqiw==", "complaint"=>{"complaint_info"=>"<p>This is the description</p>\r\n", "witnesses_attributes"=>{"0"=>{"name"=>"Second witness", "phone"=>"7877877877"}}}, "button"=>""}
  User Load (0.3ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = $1  ORDER BY "users"."id" ASC LIMIT 1  [["id", 1]]
   (0.3ms)  BEGIN
  SQL (0.8ms)  INSERT INTO "complaints" ("complaint_info", "user_id", "created_at", "updated_at") VALUES ($1, $2, $3, $4, $5, $6, $7, $8) RETURNING "id"  [["complaint_info", "<p>This is the description</p>\r\n"], ["user_id", 1], ["created_at", "2015-06-10 16:14:10.452890"], ["updated_at", "2015-06-10 16:14:10.452890"]]
  SQL (1.3ms)  INSERT INTO "witnesses" ("name", "phone", "complaint_id", "created_at", "updated_at") VALUES ($1, $2, $3, $4, $5) RETURNING "id"  [["name", "Second witness"], ["phone", "7877877877"], ["complaint_id", 19], ["created_at", "2015-06-10 16:14:10.457497"], ["updated_at", "2015-06-10 16:14:10.457497"]]
   (96.3ms)  COMMIT
Redirected to http://localhost:3000/dashboard/complaints/19
Completed 302 Found in 125ms (ActiveRecord: 98.9ms)

如您所见，它只保存一个见证记录["name", "Second witness"]，并且是最后一个字段（有两个字段，我在最后一个字段中输入了First witness和Second witness。）< / p>

Answer 1

嗯，这是方法。假设你想要2条记录 save 。然后你需要做：

def new
  @complaint = Complaint.new
  2.times { @complaint.witnesses.build }
end

将表单更改为：

<%= form_for @complaint, url: {action: 'create'}, :html => {:multipart => true} do |f| %>
  <%= f.label :complaint_info, 'Describa lo que sucedió' %>

  <%= f.cktext_area :complaint_info, :class => 'someclass', :ckeditor => {:language => 'us', :toolbar => 'mini'}, tabindex: '-1' %>

  <%= f.fields_for :witnesses do |witnesses_form| %>
        <%= witnesses_form.label :name, '¿Hay testigos?' %>
        <%= witnesses_form.text_field :name, placeholder: 'Escriba el nombre del testigo', tabindex: '-1' %>
        <%= witnesses_form.label :phone, 'Número de teléfono del testigo' %>
        <%= witnesses_form.text_field :phone, placeholder: 'Escriba el número de teléfono' %>
  <% end %>
<% end %>

对于与fields_for对象关联的每个witnesses实例，将重复嵌套f调用的

The block given。

将多个相同的命名字段保存到数据库记录

1 个答案: