我有一个表单,该表单旨在提交两个模型,第一个模型has_one
和另一个模型Student_Detail
。
这里的许多用户已经帮助我解决了一些我已经遇到的错误,现在我的表单已成功提交,但仅提交了主要模型Participant
。
我已经提交了几次表格,它存储了所有Participant
模型的直接信息。在活动管理员中,会填充Participant
模型数据,但不存在Student_Detail
记录。
在控制台中,Student_Detail
数据不存在。
表格:
<%= form_for @participant, url: {action: "create"} do |f| %>
<%= f.label :first_name, 'First:' %>
<%= f.text_field :first_name %>
<%= f.label :last_name, 'Last:' %>
<%= f.text_field :last_name %>
<%= f.label :gender, 'Sex:' %>
<%= f.select :gender, ['Male', 'Female'] %>
<br>
<br>
<%= f.label :birthdate, 'Birthdate:' %>
<%= f.date_field :birthdate %>
<%= f.label :email, 'Email:' %>
<%= f.text_field :email %>
<%= f.label :phone, 'Phone:' %>
<%= f.text_field :phone %>
<%= f.label :street_name, 'Street Number & Name:' %>
<%= f.text_field :street_name %>
<%= f.label :city, 'City:' %>
<%= f.text_field :city %>
<%= f.label :state, 'State:' %>
<%= f.text_field :state %>
<%= f.label :zip, 'Zip:' %>
<%= f.text_field :zip %>
<!-- <%= f.label :role, 'Role:' %>
<%= f.select :role, ['Reader'] %> -->
<br>
<br>
<%= f.fields_for @participant.student_detail do |student_detail_field| %>
<%= student_detail_field.label :nationality, 'Nationality:' %>
<%= student_detail_field.text_field :nationality %>
<%= student_detail_field.label :religion, 'Religion:' %>
<%= student_detail_field.text_field :religion %>
<%= student_detail_field.label :need_ride, 'Do you need help getting to the church building?' %>
<%= student_detail_field.select :need_ride, ['Yes','No'] %>
<br>
<br>
<%= student_detail_field.label :has_spouse, 'Marital Status:' %>
<%= student_detail_field.select :has_spouse, ['married', 'single'] %>
<br>
<br>
<%= student_detail_field.label :spouse_name, "If married, spouse's name:" %>
<%= student_detail_field.text_field :spouse_name %>
<%= student_detail_field.label :english_level, 'English Level:' %>
<%= student_detail_field.select :english_level, ['Low', 'Medium Low', 'Medium', 'Medium High', 'High'] %>
<%= student_detail_field.label :expectation, 'What are your expectations for the program?:' %>
<%= student_detail_field.text_area :expectation %>
<%= student_detail_field.label :length_of_stay, 'About how long will you be in town?:' %>
<%= student_detail_field.select :length_of_stay, ['Less than 1 Year', '1 Year', '1-2 Years', '2-3 Years', '3+ Years'] %>
<%= student_detail_field.label :exact_length, 'Please tell us exactly how long you plan to be in town:' %>
<%= student_detail_field.text_area :exact_length %>
<% end %>
型号:
class Participant < ApplicationRecord
validates :last_name, presence: true
# validates :gender, inclusion: { in: %w(male female) }
validates :phone, presence: true
has_one :volunteer_detail, :dependent => :destroy
accepts_nested_attributes_for :volunteer_detail, :allow_destroy => :true
has_one :student_detail, :dependent => :destroy
accepts_nested_attributes_for :student_detail, :allow_destroy => :true
end
-
class StudentDetail < ApplicationRecord
belongs_to :participant
end
控制器:
class ParticipantsController < ApplicationController
def new
@participant= Participant.new
@studentdetail= @participant.build_student_detail(participant: @participant)
end
def create
@participant = Participant.create(participant_params)
@participant.save
if @participant.save
flash[:success] = "Successfully Registered!"
#email notifes admin of new registration
NotifyMailer.notify_email(@participant).deliver_later
redirect_to '/signup'
end
end
def edit
end
def update
end
def show
end
def index
end
private
def participant_params
params.require(:participant).permit(:first_name, :last_name, :gender, :email, :birthdate, :phone,
:street_name, :city, :state, :zip, student_detail_attributes: [:nationality, :religion, :need_ride,
:has_spouse, :spouse_name, :english_level, :expectation, :length_of_stay, :exact_length, :volunteer_id,
:matched, :returned_home, :participant_id])
end
end
任何建议或建议都值得赞赏,我正在尝试使两个模型在提交表单时都填充数据,并且当前主要模型是唯一一个起作用的模型。
答案 0 :(得分:2)
我相信这里的问题在于您视图中fields_for行的语法。
更改f.fields_for @participant.student_detail do |student_detail_field|
致f.fields_for :student_detail, @participant.student_detail do |student_detail_field|
如果您在控制器中放置binging.pry或puts语句来查看参数,我敢打赌,student_detail_attributes甚至都无法理解您的参数。您只需在控制器中插入puts params.inspect
即可检查参数是否按预期通过。您强大的params语法与模型一样正确,因此我认为这与您的视图有关。
编辑
还有一些其他尝试。正如我在评论中提到的那样,我通常不会这么做
@participant = Participant.create(participant_params)
我会做:
@participant = Participant.new(participant_params)
if @participant.save
#etc
end
上面的内容也可以稍微整理一下您的代码。 (我还注意到,在此操作中您没有理由说明参与者没有保存时该怎么做-附带说明,您应该编写一些代码来处理该问题)
如果以上两种方法都不起作用,有时我会发现使用accept_nested_attributes必须将模型设置为彼此“反向”。有关更多信息,请参见本文:https://robots.thoughtbot.com/accepts-nested-attributes-for-with-has-many-through-有关has_many,但我认为它也应与has_one有关-请尝试使用参与者模型:
has_one :student_detail, :dependent => :destroy, inverse_of: :participant
查看上面的任何一个(或两者结合)是否可以保存嵌套模型。