rails 应用程序中的创建按钮无法正常工作。为什么不保存到数据库?

Create Button in rails app isn't working. Why won't it save to the db?

所以这可能是重复的,但我在修复它时遇到了很多问题。我是 rails 的新手,所以它很容易成为小问题。我正在制作锻炼日志并且能够在控制台中成功保存新数据但是当我转到服务器时它不起作用。

用户模型:

class User < ApplicationRecord
  has_secure_password
  has_many :workouts, dependent: :destroy

  VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i.freeze
  validates :name, :email, presence: true
  validates :email, format: { with: VALID_EMAIL_REGEX }, uniqueness: { case_sensitive: false }
end

锻炼模型:

class Workout < ApplicationRecord
  validates :date, presence: true

  belongs_to :user
  has_many :exercises, dependent: :destroy
  accepts_nested_attributes_for :exercises, allow_destroy: true, reject_if: proc{ |attr| attr['name'].blank?}
end

锻炼控制器(删除了一些方法):

class WorkoutsController < ApplicationController
  before_action :require_login

  def new
    @workout = current_user.workouts.build(date: Date.today)
  end

  def create
    @workout = current_user.workouts.build(workout_params)
    if @workout.save
      redirect_to workouts_path, notice: 'Workout was successfully created.'
    else
      @errors = @workout.errors.full_messages
      redirect_to new_workout_path, notice: @errors
    end
  end

  private

  def workout_params
    params.fetch(:workout, {}).permit(:date, exercises_attributes: %i[_destroy id name reps weight weight_unit hours minutes seconds])
  end
end

_form(移除练习嵌套形式):

<div class="container-fluid">
  <%= form_with(model: @workout, local: true, authenticity_token: true) do |form| %>
    <%= hidden_field_tag :authenticity_token, form_authenticity_token -%>
    <% if @workout.errors.any? %>
      <div id="error_explanation">
        <h2><%= pluralize(@workout.errors.count, "error") %> prohibited this workout from being saved:</h2>

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

    <div class="container-fluid align-items-center">
      <form>
        <div class="container-fluid">
          <%= form_for @workout do |f| %>
            <div class="form-group">
              <h2><%= f.label :date %></h2>
              <div style="font-size: 18pt"><%= f.date_field :date %></div>
            </div>
          <% end %>
        </div>
        <div class="actions" >
          <%= link_to "Create Workout", workouts_path, :method => :post %>
          <%= form.submit %>
        </div>
      </form>
    </div>
  <% end %>
</div>

如果您发现任何问题或对尝试的内容有任何建议,请告诉我。我确实注意到,如果全部以新方法完成而不是通过单击按钮,我可以保存锻炼。我有两个提交按钮,因为我在每个按钮上测试不同的东西。

提前致谢,如果您需要我post更多信息,请告诉我。

您已将 <form>...</form> 标签手动添加到您的 html,此处:

<form>
  <div class="container-fluid">
    <%= form_for @workout do |f| %>
      <div class="form-group">
        <h2><%= f.label :date %></h2>
        <div style="font-size: 18pt"><%= f.date_field :date %></div>
      </div>
    <% end %>
  </div>
  <div class="actions" >
    <%= link_to "Create Workout", workouts_path, :method => :post %>
    <%= form.submit %>
  </div>
</form>

不要那样做。 form_for 为您创建表单标签。