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你好rails社区!如何设置关联模型的错误信息?
我有has_many保留booking_post模型。
class BookingPost < ApplicationRecord
has_many :reservations, dependent: :destroy
end
所有预订belongs_to的booking_post并有一定的验证
class Reservation < ApplicationRecord
belongs_to :booking_post
before_save { self.email = email.downcase }
VALID_EMAIL_REGEX = /\A[\w+\-.][email protected][a-z\d\-.]+\.[a-z]+\z/i
validates :email, presence: true, length: { maximum: 255 },
format: { with: VALID_EMAIL_REGEX }
validates :name, :email, :phone_number, :start, :end, presence: true
end
我的路线是下一个:
resources :booking_posts do
resources :reservations, only: [:new, :create]
end
方法:
class BookingPostsController < ApplicationController
def show
@booking_picture = @booking_post.booking_pictures.build
@booking_pictures = @booking_post.booking_pictures
@reservation = @booking_post.reservations.build
@reservations = @booking_post.reservations
end
end
class ReservationsController < ApplicationController
def new
@reservation = Reservation.new
end
def create
@booking_post = BookingPost.find(params[:booking_post_id])
@email= User.where(admin: true).first.email
@reservation = @booking_post.reservations.build(reservation_params)
if @reservation.save
@saved_reservation = @reservation
redirect_to :back
flash[:notice] = 'Reservation was successfully created.'
ReservationMailer.fresh_message(@saved_reservation, @email).deliver_now
else
redirect_to @booking_post
flash[:info] = @reservation.errors.full_messages do |m|
m
end
end
end
end
我想创建booking_posts /show.html.e rb form_for @reservation,并在此页面上呈现@reservation错误。当我创建有效的@reservation时,我会在booking_posts/show.html.erb上看到成功的Flash消息,但无效的@reservation会显示而不会出现任何错误的Flash消息。
的form_for @reservation上booking_posts/show.html.erb:
<div class="card-action">
<%= form_for([@reservation.booking_post, @reservation], html: {multipart: true}, class: "col s12") do |f| %>
<% if @reservation.errors.any? %>
<div id="error_explanation">
<h2><%= pluralize(@reservation.errors.count, "error") %> prohibited this post from being saved:</h2>
<ul>
<% @reservation.errors.full_messages.each do |message| %>
<li><%= message %></li>
<% end %>
</ul>
</div>
<% end %>
<div class="col s6">
<%= f.label :start %>
<%= f.date_field :start, placeholder: "start time", class: "datepicker" %>
</div>
<div class="col s6">
<%= f.label :end %>
<%= f.date_field :end, placeholder: "end time", class: "datepicker" %>
</div>
<div class="col s6">
<%= f.label :reservation_time %>
<%= f.time_field :reservation_time, placeholder: "time", class: "timepicker", id: "timepicker", type: "time" %>
</div>
<div class="input-field col s6">
<%= f.label :name %>
<%= f.text_field :name, class: "validate" %>
</div>
<div class="input-field col s6">
<%= f.label :email %>
<%= f.text_field :email, class: "validate" %>
</div>
<div class="input-field col s6">
<%= f.label :phone_number %>
<%= f.text_field :phone_number, class: "validate" %>
</div>
<div class="waves-effect waves-light btn">
<%= f.submit t(:submit_reservation)%>
</div>
<% end %>
<br>
</div>
我想呈现@booking_post 页的@reservation错误信息(在booking_post_path,而不是在new_reservation_path或其他点儿)。我该怎么做?
感谢解决方案
感谢君安更新。这是工作。有一个小问题。我尝试使用闪光灯[:危险],闪光灯[:警告],闪光灯[:警告]更改错误闪光灯颜色,并且未出现消息。您的解决方案仅适用于flash [:notice]。 MB你知道原因。 – anndrew78
为此,您需要将导轨闪光灯键映射到自举警报类。请遵循这个非常简单的教程。 https://coderwall.com/p/jzofog/ruby-on-rails-flash-messages-with-bootstrap –