[英]Rails simple_form - Nested Form NoMethodError in "show" page
Im having some difficulty with making a nested form to work using simple_form, specifically with the show page.我在使用 simple_form 制作嵌套表单时遇到了一些困难,特别是在显示页面上。 I have a Profile and Experience model, and would like to nest the Experience model within the Profile model.我有一个 Profile 和 Experience 模型,并且想将 Experience 模型嵌套在 Profile 模型中。 I believe I have set up the form file and controller and associations correctly, and the form seems to work fine, except when I try to save the form and go to the show page, I am getting the following error with regards to the feilds relating to my Experience model:我相信我已经正确设置了表单文件和控制器以及关联,并且表单似乎工作正常,除非当我尝试保存表单并转到显示页面时,我收到以下与相关字段有关的错误到我的体验模型:
NoMethodError in Profiles#show配置文件中没有方法错误#show
Showing c:/Users/Rashed/Desktop/Ministry-Web-Application (new)/app/views/profiles/show.html.erb where line #17 raised:显示 c:/Users/Rashed/Desktop/Ministry-Web-Application (new)/app/views/profiles/show.html.erb 其中第 17 行提出:
undefined method `company' for nil:NilClass未定义的方法“公司”为 nil:NilClass
The issue seems to be with my code on the show page to render the nested Experience fields, however I cant seem to figure out how to solve the issue, despite searching for ages for a solution.问题似乎与我在显示页面上呈现嵌套体验字段的代码有关,但是我似乎无法弄清楚如何解决这个问题,尽管寻找解决方案已经很长时间了。
here is the code for my project:这是我的项目的代码:
show.html.erb: show.html.erb:
<div class="row">
<div class="col-md-offset-1 col-md-8">
<p id="notice"><%= notice %></p>
<p><strong>Full Name:</strong> <%= @profile.name %></p>
<p><strong>Civil ID no:</strong> <%= @profile.civil %></p>
<p><strong>Date of Employment:</strong> <%= @profile.date_of_employment %></p>
<p><strong>Mobile no:</strong> <%= @profile.mobile %></p>
<p><strong>Work Email:</strong> <%= @profile.work_email %></p>
<p><strong>Personal Email</strong> <%= @profile.personal_email %></p>
<p><strong>Internal no:</strong> <%= @profile.internal_no %></p>
<p><strong>Nationality:</strong> <%= @profile.nationality %></p>
<p><strong>Gender:</strong> <%= @profile.gender %></p>
<p><strong>Academic Degree:</strong> <%= @profile.academic_degree %></p>
<p><strong>Major:</strong> <%= @profile.major %></p>
<p><strong>Company / Workplace</strong> <%= @experience.company %></p>
<p><strong>Company / Workplace</strong> <%= @experience.period_of_employment %></p>
<p><strong>Company / Workplace</strong> <%= @experience.title %></p>
<%= link_to 'Edit', edit_profile_path(@profile) %> |
<%= link_to 'Back', profiles_path %>
</div>
</div>
profiles_controller.rb profile_controller.rb
class ProfilesController < ApplicationController
before_action :set_profile, only: [:show, :edit, :update, :destroy]
respond_to :html
def index
@profiles = Profile.all
respond_with(@profiles)
end
def show
respond_with(@profile)
end
def new
@profile = Profile.new
@profile.experiences.build
respond_with(@profile)
end
def edit
end
def create
@profile = Profile.new(profile_params)
@profile.user_id = current_user.id
@profile.save
respond_with(@profile)
end
def update
@profile.update(profile_params)
respond_with(@profile)
end
def destroy
@profile.destroy
respond_with(@profile)
end
private
def set_profile
@profile = Profile.find(params[:id])
end
def profile_params
params.require(:profile).permit(:name, :civil, :date_of_employment, :mobile, :work_email, :personal_email, :internal_no, :nationality, :gender, :academic_degree, :major, :work_experience, experiences_attributes: [:company, :period_of_employment, :title])
end
end
_form.html.erb _form.html.erb
<%= simple_form_for(@profile) do |f| %>
<%= f.error_notification %>
<div class="form-inputs">
<%= f.input :name, label: 'Full Name:' %>
<%= f.input :civil, label: 'Civil ID:' %>
<%= f.input :gender, collection: ['Male', 'Female'], label: 'Gender:', as: :radio_buttons, :include_blank => false %>
<%= f.input :date_of_employment, label: 'Date of Employement:', as: :date, start_year: Date.today.year - 50, end_year: Date.today.year, order: [:day, :month, :year], input_html: { class: 'inline-date' } %>
<%= f.input :mobile, label: 'Mobile no:' %>
<%= f.input :work_email, label: 'Work Email:' %>
<%= f.input :personal_email, label: 'Personal Email:' %>
<%= f.input :internal_no, label: 'Internal no:' %>
<%= f.input :nationality, collection: ['Kuwaiti', 'Non-Kuwaiti'], label: 'Nationality:', as: :radio_buttons, :include_blank => false %>
<%= f.input :academic_degree, collection: ["Pre-Bachelor's Degree", "Diploma", "Bachelor's Degree", "Master's Degree", "Ph.D"], label: 'Academic Degree', as: :select, :include_blank => 'Choose Your Degree...' %>
<%= f.input :major, collection: ["Architecture", "Civil Engineering", "Mechanical Engineering", "Chemical Engineering", "Computer Engineering", "Interior Designer", "Electrical Engineering", "Civil Engineering / Structure", "Administration"], label: 'Major', as: :select, :include_blank => 'Choose Your Major...' %>
<%= f.input :nationality, collection: ['Kuwaiti', 'Non-Kuwaiti'], label: 'Nationality:', as: :radio_buttons, :include_blank => false %>
<%= f.input :work_experience, collection: ['No', 'Yes'], label: 'Previous Work Experience?', as: :radio_buttons, :include_blank => false %>
<%= f.simple_fields_for :experiences, Experience.new do |builder| %>
<%= buidler.input :company %>
<%= buidler.input :period_of_employment, label: 'Period of Employement:', as: :date, start_year: Date.today.year - 50, end_year: Date.today.year, order: [:day, :month, :year], input_html: { class: 'inline-date' } %>
<%= builder.input :title, label: 'Job Title' %>
<% end %>
</div>
<div class="form-actions">
<%= f.button :submit %>
</div>
<% end %>
Experience Model:体验模式:
class Experience < ActiveRecord::Base
belongs_to :profile
end
Profile Model:型材型号:
class Profile < ActiveRecord::Base
belongs_to :users
has_many :experiences
accepts_nested_attributes_for :experiences
end
Thanks in advance!提前致谢!
Each Profile has many Experiences so when you do @profile.experiences, it returns a collection and not a single record.每个配置文件都有许多体验,因此当您执行 @profile.experiences 时,它返回一个集合而不是单个记录。 You need to iterate over these and show them like this:您需要迭代这些并像这样显示它们:
<% @profile.experiences.each do |experience| do %>
<p><strong>Company / Workplace</strong> <%= experience.company %></p>
<p><strong>Company / Workplace</strong> <%= experience.period_of_employment %></p>
<p><strong>Company / Workplace</strong> <%= experience.title %></p>
<% end %>
Could you try this你能试试这个吗
<div class="row">
<div class="col-md-offset-1 col-md-8">
<p id="notice"><%= notice %></p>
<p><strong>Full Name:</strong> <%= @profile.name %></p>
<p><strong>Civil ID no:</strong> <%= @profile.civil %></p>
<p><strong>Date of Employment:</strong> <%= @profile.date_of_employment %></p>
<p><strong>Mobile no:</strong> <%= @profile.mobile %></p>
<p><strong>Work Email:</strong> <%= @profile.work_email %></p>
<p><strong>Personal Email</strong> <%= @profile.personal_email %></p>
<p><strong>Internal no:</strong> <%= @profile.internal_no %></p>
<p><strong>Nationality:</strong> <%= @profile.nationality %></p>
<p><strong>Gender:</strong> <%= @profile.gender %></p>
<p><strong>Academic Degree:</strong> <%= @profile.academic_degree %></p>
<p><strong>Major:</strong> <%= @profile.major %></p>
<% @profile.experiences.each do |experience| %>
<p><strong>Company / Workplace</strong> <%= experience.try(:company) %></p>
<p><strong>Company / Workplace</strong> <%= experience.try(:period_of_employment) %></p>
<p><strong>Company / Workplace</strong> <%= experience.try(:title) %></p>
<% end %>
<%= link_to 'Edit', edit_profile_path(@profile) %> |
<%= link_to 'Back', profiles_path %>
</div>
Hope it helps!希望能帮助到你!
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