Question

我在Rails 4.2中有一个放大器形式。根据AMP验证，一切都是有序的，但是当通过表单提交记录时，会发生以下错误：

import UIKit
import PlaygroundSupport



class CustomView: UIView, UITableViewDataSource {

    var tableView = UITableView()
    var tableData = [String]()

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
    }

    override init(frame: CGRect) {
        super.init(frame: frame)
        backgroundColor = UIColor.gray

        tableView.dataSource = self
        tableView.rowHeight = UITableViewAutomaticDimension
        tableView.estimatedRowHeight = 300
        tableView.tableFooterView = UIView()
        tableView.translatesAutoresizingMaskIntoConstraints = false
        addSubview(tableView)
        tableView.leadingAnchor.constraint(equalTo: self.leadingAnchor).isActive = true
        tableView.trailingAnchor.constraint(equalTo: self.trailingAnchor).isActive = true
        tableView.topAnchor.constraint(equalTo: self.topAnchor).isActive = true
        tableView.bottomAnchor.constraint(equalTo: self.bottomAnchor).isActive = true
        tableData = [String](repeating: "https://img.webmd.com/dtmcms/live/webmd/consumer_assets/site_images/article_thumbnails/video/wibbitz/wbz-breakfast-most-important-meal.jpg", count: 2)
        tableView.register(CustomCell.self, forCellReuseIdentifier: "cell")
    }

    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return tableData.count
    }

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! CustomCell
        let imageURL = tableData[indexPath.row]
        if let url = URL.init(string: imageURL) {
            cell.cellImageView?.downloadImage(with: url,
                                              completion: {
                                                // ...
            })
        }
        return cell
    }
}

class CustomCell: UITableViewCell {

    var cellImageView: UIImageView?

    required init?(coder aDecoder: NSCoder) {
        fatalError() // since we're not using
    }

    override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
        super.init(style: style, reuseIdentifier: reuseIdentifier)
        setupCell()
    }

    func setupCell() {

        backgroundColor = UIColor.orange
        clipsToBounds = true

        let tempLabel = UILabel()
        tempLabel.translatesAutoresizingMaskIntoConstraints = false
        tempLabel.backgroundColor = UIColor.red
        tempLabel.text = "this is some text"
        tempLabel.numberOfLines = 0
        tempLabel.font = UIFont.systemFont(ofSize: 20, weight: .bold)

        cellImageView = UIImageView()
        cellImageView?.clipsToBounds = true
        cellImageView?.contentMode = .scaleAspectFit
        cellImageView?.autoresizingMask = [.flexibleWidth, .flexibleHeight]
        cellImageView?.backgroundColor = UIColor.green
        cellImageView?.translatesAutoresizingMaskIntoConstraints = false

        let stackView = UIStackView(arrangedSubviews: [tempLabel, cellImageView!])
        contentView.addSubview(stackView)
        stackView.translatesAutoresizingMaskIntoConstraints = false
        stackView.axis = .vertical
        stackView.distribution = .fillProportionally
        stackView.alignment = .leading
        stackView.spacing = 10
        stackView.topAnchor.constraint(equalTo: contentView.topAnchor).isActive = true
        stackView.leadingAnchor.constraint(equalTo: contentView.leadingAnchor).isActive = true
        stackView.bottomAnchor.constraint(equalTo: contentView.bottomAnchor).isActive = true
        stackView.trailingAnchor.constraint(equalTo: contentView.trailingAnchor).isActive = true
        cellImageView?.leadingAnchor.constraint(equalTo: stackView.leadingAnchor).isActive = true
        cellImageView?.trailingAnchor.constraint(equalTo: stackView.trailingAnchor).isActive = true

    }

}

extension UIImageView {

    func downloadImage(with url: URL, completion: @escaping () -> Void) {

        let task = URLSession.shared.dataTask(with: url) { [weak weakSelf = self] data, response, error in

            guard error == nil else {
                print("UIImageView: error downloading image: \(String(describing: error))")
                return
            }

            guard let data = data, let downloadedImage = UIImage.init(data: data) else {
                print("UIImageView: issue with data from downloaded image.")
                return
            }

            DispatchQueue.main.async {
                weakSelf?.image = downloadedImage
                completion()
            }
        }
        task.resume()
    }
}

let containerView = CustomView(frame: CGRect(x: 0, y: 0, width: 400, height: 600))
containerView.backgroundColor = UIColor.blue

PlaygroundPage.current.liveView = containerView
PlaygroundPage.current.needsIndefiniteExecution = true

enter image description here

Controller的代码是：

Started POST "/welcome/test?__amp_source_origin=http%3A%2F%2Flocalhost%3A3000" for 127.0.0.1 at 2018-04-17 09:25:31 -0500
Processing by WelcomeController#test as JSON
  Parameters: {"authenticity_token"=>"jQLaggeKmJcAlUnoq1dPqaQ6ALiedxaSaEO7VDCIei/FSEtW3F15TMkhI3cxEqBSggRbWLmZTQUkNXoYUy+5qw==", "name"=>"registerthree", "__amp_source_origin"=>"http://localhost:3000"}
"Los registros han sido enviados correctamente!"
Completed 500 Internal Server Error in 6ms (ActiveRecord: 0.0ms)
ActionView::MissingTemplate (Missing template welcome/test, application/test with {:locale=>[:en], :formats=>[:json], :variants=>[], :handlers=>[:erb, :builder, :raw, :ruby, :coffee, :jbuilder]}. Searched in:
  * "/home/dd/carpeta_usuario/codigo_de_usuario/AMP/rails-form/app/views"
):

，视图是：

class WelcomeController < ApplicationController
      def index
      end

      def test
              domain_url = "http://localhost:3000/"
              redirect_url = thankyou_url

              response.headers['Content-type'] =  'application/json'
              response.headers['Access-Control-Allow-Credentials'] = 'true'
              response.headers['Access-Control-Allow-Origin'] = '*.ampproject.org'
              response.headers['AMP-Access-Control-Allow-Source-Origin'] = domain_url

              if( redirect_url )
                  response.headers['Access-Control-Expose-Headers'] = 'AMP-Access-Control-Allow-Source-Origin'
              else
                  response.headers['AMP-Redirect-To'] = redirect_url
                  response.headers['Access-Control-Expose-Headers'] = 'AMP-Redirect-To, AMP-Access-Control-Allow-Source-Origin'
              end
              puts 'Los registros han sido enviados correctamente!'.to_json
      end

      def thankyou
      end
    end

请帮助我。非常感谢您提前

Rails 4.2使用AMP表单发送记录

0 个答案: