错误
Error while uploading the image
我无法上传嵌套脚手架形式的图像。
除图像外，所有其他字段都进入数据库。请帮忙！
我在5.2上，使用回形针进行图像上传，并且需要将图像上传到AWS。
我没有任何错误，只是图像没有进入数据库。
谢谢！
部分表单
tempate<class R, class...Args>
void bar( std::function<R(Args...)> f ) {}
template<class F>
void bar( F f ) {
std::function std_f = std::move(f);
bar(std_f);
}
控制器
<div class="panel panel-default">
<div class="panel-heading">
<span><i class="fa fa-bolt" style="color: #ffb400"></i> Apply for this campaign</span>
</div>
<div class="panel-body">
<%= form_for([@campaign, @campaign.contents.new]) do |f| %>
<div class="row">
<div class="col-md-12">
<label>Post Copy</label>
<%= f.text_area :post_copy, rows: 5, placeholder: "Create your post exactly as you'd like to see it published.", class: "form-control", required: true %>
</div>
</div>
<div class="row">
<div class="col-md-12">
<label>Price USD</label>
<%= f.text_field :price, placeholder: "How much you will charge", class: "form-control", required: true %>
</div>
</div>
<div class="row">
<div class="col-md-12">
<span class="btn btn-default btn-file text-babu">
<i class="fa fa-cloud-upload" aria-hidden="true"></i> Select Photos
<%= f.file_field "image[]", type: :file, multiple: true %>
</span>
</div>
</div>
<div class="row">
<div class="col-md-12">
<label>Where will you post?</label>
</div>
<% if !@campaign.facebook.blank? %>
<div class="col-md-3">
<%= f.check_box :is_facebook %> Facebook
</div>
<% end %>
<% if !@campaign.twitter.blank? %>
<div class="col-md-3">
<%= f.check_box :is_twitter %> Twitter
</div>
<% end %>
<% if !@campaign.instagram.blank? %>
<div class="col-md-3">
<%= f.check_box :is_instagram %> Instagram
</div>
<% end %>
<% if !@campaign.youtube.blank? %>
<div class="col-md-3">
<%= f.check_box :is_youtube %> Youtube
</div>
<% end %>
</div>
<br/>
<%= f.submit "Submit for Approval", class: "btn btn-normal btn-block" %>
<% end %>
</div>
</div>
Content.rb
class ContentsController < ApplicationController
before_action :set_campaign, except: [:your_posts]
before_action :set_content, only: [:show, :edit, :update, :destroy, :approve, :decline]
# GET campaigns/1/contents
def index
@contents = @campaign.contents
end
# GET campaigns/1/contents/1
def show
end
# GET campaigns/1/contents/new
def new
@content = @campaign.contents.build
end
# GET campaigns/1/contents/1/edit
def edit
end
# POST campaigns/1/contents
def create
if !current_user.is_active_influencer
return redirect_to payout_method_path, alert: "Please Connect to Stripe Express first."
end
campaign = Campaign.find(params[:campaign_id])
if campaign.active == false
flash[:alert] = "This Campaign is closed"
elsif current_user == campaign.user
flash[:alert] = "You cannot apply for your own campaign!"
elsif
@content = current_user.contents.build(content_params)
@content.campaign = campaign
@content.transaction_fee = @content.price * 15/100
@content.total = @content.price + @content.transaction_fee
@content.save
flash[:notice] = "Applied Successfully!"
end
redirect_to campaign
end
# PUT campaigns/1/contents/1
def update
if @content.update_attributes(content_params)
redirect_to([@content.campaign, @content], notice: 'Content was successfully updated.')
else
render action: 'edit'
end
end
# DELETE campaigns/1/contents/1
def destroy
@content.destroy
redirect_to campaign_contents_url(@campaign)
end
def your_posts
@posts = current_user.contents
end
def approve
if current_user.stripe_id.blank?
flash[:alert] = "Please update your payment method."
return redirect_to payment_method_path
elsif
charge(@campaign, @content)
elsif
flash[:alert] = "Cannot make a reservation!"
end
end
def decline
@content.Declined!
redirect_to campaign_contents_path
end
private
#Twilio_start
def send_sms(campaign, content)
@client = Twilio::REST::Client.new
@client.messages.create(
from: '+18646060816',
to: content.user.phone_number,
body: "You content for '#{campaign.brand_name}' has been approved."
)
end
#Twilio_end
def charge(campaign, content)
if !campaign.user.stripe_id.blank?
customer = Stripe::Customer.retrieve(campaign.user.stripe_id)
charge = Stripe::Charge.create(
:customer => customer.id,
:amount => content.total * 100,
:description => campaign.name,
:currency => "usd",
:destination => {
:amount => content.price * 95, # 95% of the content amount goes to the Content Maker
:account => content.user.merchant_id # Influencer's Stripe customer ID
}
)
if charge
content.Approved!
ContentMailer.send_email_to_influencer(content.user, campaign).deliver_later if content.user.setting.enable_email
send_sms(campaign, content) if content.user.setting.enable_sms #Twilio
flash[:notice] = "Paid and Approved successfully!"
redirect_to campaign_contents_path
else
reservation.Declined!
flash[:alert] = "Cannot charge with this payment method!"
end
end
rescue Stripe::CardError => e
content.Declined!
flash[:alert] = e.message
end
# Use callbacks to share common setup or constraints between actions.
def set_campaign
@campaign = Campaign.find(params[:campaign_id])
end
def set_content
@content = @campaign.contents.find(params[:id])
end
# Only allow a trusted parameter "white list" through.
def content_params
params.require(:content).permit(:post_copy, :is_facebook, :is_instagram, :is_twitter, :is_youtube, :price, image: [])
end
end
终端响应
class Content < ApplicationRecord
enum status: {Waiting: 0, Approved: 1, Declined: 2}
after_create_commit :create_notification
belongs_to :user
belongs_to :campaign
has_attached_file :image, styles: { medium: "300x300>", thumb: "100x100>" }
validates_attachment_content_type :image, content_type: /\Aimage\/.*\z/
private
def create_notification
type = self.campaign.Instant? ? "New Booking" : "New Request"
influencer = User.find(self.user_id)
Notification.create(content: "#{type} from #{influencer.fullname}", user_id: self.campaign.user_id)
end
end
答案 0 :(得分：1)
不允许的参数：：images
您的代码需要进行一些重要的更改。
1）这个
<%= file_field_tag "images[]", type: :file, multiple: true %>
应该是
<%= f.file_field "image[]", type: :file, multiple: true %>
2）您需要修改content_params，以允许图片接受值数组。在:image
image: []更改为content_params