Question

我正在构建一个应用程序，允许人们通过填写表单来与老师签到。我有用户和＆＃34;签到＆＃34;我打电话给Pins。我创建了表单，但由于某种原因，它没有呈现用户填写的答案。请注意，用户电子邮件显示在视图中，但不显示在表单中输入的任何内容。

我做错了什么？

_form.html.erb

<%= form_for(@pin) do |f| %>
<% if @pin.errors.any? %>
<div id="error_explanation">
  <h2><%= pluralize(@pin.errors.count, "error") %> prohibited this pin from being saved:</h2>

  <ul>
  <% @pin.errors.full_messages.each do |msg| %>
    <li><%= msg %></li>
  <% end %>
  </ul>
</div>
<% end %>

<div class="form-group">
<%= label_tag(:questions, "You can free-write anything you would like to share here, or you can     respond to one or more of the prompts below.") %>
 <%= f.text_field :questions, class: "form-control" %>
 </div>
<div class="form-group">
<%= label_tag(:questions, "You can write about your own actions or thoughts here.") %>
<%= f.text_area :questions, class: "form-control" %>
</div>
<div class="form-group">
<%= label_tag(:questions, "You can write about the actions of another person here.") %>
<p>Please include the names of anyone that was there</p>
<%= f.text_area :questions, class: "form-control" %>
</div>
<div class="form-group">
<%= label_tag(:questions, "If you have a question, comment, or message for your teacher, please  write it here.") %>
 <%= f.text_area :questions, class: "form-control" %>
 </div>
<div class="form-group">
<%= label_tag(:questions, "Are you considering another action? You can write about it here.") %>
<%= f.text_area :questions, class: "form-control" %>
</div>
<div class="form-group">
<%= f.submit "submit", class: "btn btn-lg btn-primary" %>
</div>
<% end %>

show.html

p id="notice"><%= notice %></p>

<p>
<strong>Description:</strong>

<%= @pin.questions %>
</p>

<% if @pin.user == current_user %>
<%= link_to 'Edit', edit_pin_path(@pin) %>
<% end %>
<%= link_to 'Back', pins_path %>

index.html.erb for pins（checkin）

  <h1>All your checkins are listed below</h1>

  <h3>Checkin</h3>



     <% @pins.each do |pin| %>

    <p><%= pin.questions %></p>
    <p><%= pin.user.email if pin.user %></p>
    <%= link_to 'Show', pin %>
    <% if pin.user == current_user %>
    <%= link_to 'Edit', edit_pin_path(pin) %>
    <%= link_to 'Destroy', pin, method: :delete, data: { confirm: 'Are you sure?' } %>
    <% end %>

   <% end %>

   <br>

  <% if user_signed_in? %>
  <%= link_to 'New Checkin', new_pin_path %>
  <% end %>

Schema.rb

ActiveRecord::Schema.define(version: 20141219162930) do

create_table "pins", force: true do |t|
t.string   "description"
t.datetime "created_at"
t.datetime "updated_at"
t.text     "questions"
t.integer  "user_id"
end

add_index "pins", ["user_id"], name: "index_pins_on_user_id"

create_table "users", force: true do |t|
t.string   "email",                  default: "", null: false
t.string   "encrypted_password",     default: "", null: false
t.string   "reset_password_token"
t.datetime "reset_password_sent_at"
t.datetime "remember_created_at"
t.integer  "sign_in_count",          default: 0,  null: false
t.datetime "current_sign_in_at"
t.datetime "last_sign_in_at"
t.string   "current_sign_in_ip"
t.string   "last_sign_in_ip"
t.datetime "created_at"
t.datetime "updated_at"
end

add_index "users", ["email"], name: "index_users_on_email", unique: true
add_index "users", ["reset_password_token"], name: "index_users_on_reset_password_token", unique:    true

end

编辑：

这是我的引脚控制器。我很确定我并没有将这些参数列入白名单。正确。如果有人知道正确的方式，请分享。

class PinsController < ApplicationController
before_action :set_pin, only: [:show, :edit, :update, :destroy]
before_action :authenticate_user!, except: [:index, :show]

def index
@pins = Pin.all
end

def show
end

  def new
  @pin = current_user.pins.build
  end

  def edit
  end

  def create
   @pin = current_user.pins.build(pin_params)
   if @pin.save
  redirect_to @pin, notice: 'Checkin was successfully created.'
  else
  render action: 'new'
  end
  end

  def update
  if @pin.update(pin_params)
  redirect_to @pin, notice: 'Checkin was successfully updated.'
  else
  render action: 'edit'
 end
 end

def destroy
@pin.destroy
redirect_to pins_url
end

private
# Use callbacks to share common setup or constraints between actions.
def set_pin
  @pin = Pin.find(params[:id])
end

def correct_user
  @pin = current_user.pins.find_by(id: params[:id])
  redirect_to pins_path, notice: "Not authorized to edit this pin" if @pin.nil?
end

# Never trust parameters from the scary internet, only allow the white list through.
def pin_params
  params.require(:questions),permit(:id,:user_id,:questions)
end
end

Answer 1

您使用的是哪种版本的导轨？如果它是导轨4，您是否已将控制器中的引脚列入白名单？ http://edgeapi.rubyonrails.org/classes/ActionController/StrongParameters.html

在rails app中以视图形式回答的问题无法呈现

1 个答案: