Ruby on rails 简单表单具有且属于许多关联未更新
我有场地模型和照片:Ruby on rails 简单表单具有且属于许多关联未更新,ruby-on-rails,ruby-on-rails-4,associations,simple-form,Ruby On Rails,Ruby On Rails 4,Associations,Simple Form,我有场地模型和照片: class Venue < ActiveRecord::Base has_and_belongs_to_many :photos validates :name, presence: true validates :permalink, presence: true, uniqueness: true def to_param permalink end end class Photo < ActiveRecord::Base
class Venue < ActiveRecord::Base
has_and_belongs_to_many :photos
validates :name, presence: true
validates :permalink, presence: true, uniqueness: true
def to_param
permalink
end
end
class Photo < ActiveRecord::Base
mount_uploader :image, PhotoUploader
has_and_belongs_to_many :venues
end
上课地点
我使用simple_表单制作以下表单:
<div class="content-box">
<%= simple_form_for [:admin, @venue] do |f| %>
<%= f.input :name %>
<%= f.input :permalink %>
<%= f.input :description, input_html: { cols: 100, rows: 6 }%>
<%= f.input :address %>
<%= f.input :city %>
<%= f.input :phone %>
<%= f.association :photos %>
<%= f.button :submit, class: 'small radius' %>
<% end %>
</div>
这是我的编辑和更新方法控制器:
class Admin::VenuesController < ApplicationController
def edit
@venue = Venue.find_by_permalink!(params[:id])
@photos = @venue.photos.all
end
def update
@venue = Venue.find_by_permalink!(params[:id])
if @venue.update_attributes(venue_params)
redirect_to edit_admin_venue_path(@venue), notice: 'Venue was successfully updated.'
else
render action: "edit"
end
end
private
def venue_params
params.require(:venue).permit(:name, :permalink, :description, :address, :city, :phone, :photo_ids)
end
end
class Admin::venuescoontroller
问题是,当我使用表单更新时,场馆模型的所有属性都会很好地更新,但照片ID不会更新或存储。我猜它很简单,但我不确定它是什么。我正在使用Rails 4,顺便说一句。您需要允许
照片ID
作为数组
,因为照片ID在提交表单时作为数组
传递。当前,photo\u id
未得到更新,因为您不允许它们作为数组
更新场馆参数
,如下所示:
def venue_params
params.require(:venue).permit(:name, :permalink, :description, :address, :city, :phone, :photo_ids => [])
end
注意::photo\u id=>[]
而不是:photo\u id