La conversión de Javascript tablas de datos para el uso de Ópalo en aplicación Rails

Estoy usando el ajax-tablas de datos-rails. A continuación es el JS para mi datatable. Quiero convertir el javascript en su equivalente de Ópalo.rb.

jQuery(document).ready(function() {
  var table = $('#organizations-datatable');
  var token = $('meta[name=csrf-token]').attr('content');
  table.DataTable({
    "processing": true,
    "serverSide": true,
    "ajax": {
      "url": "/organizations/datatable.json",
      "type": 'POST',
      "beforeSend": function (xhr) {
          xhr.setRequestHeader('X-CSRF-Token', token)
        }
    },
    "pagingType": "full_numbers",
    "destroy": true,
    "columns": [
      {"data": "name"},
      {"data": "desc"},
      {"data": "industry"},
      {"data": "tags"}
    ],
    "iDisplayLength": 25
  });
});

Esto incluye añadir el token CSRF a la petición ajax de datos.

Me gustaría que todos los de nuestro código javascript escrito como el ópalo para mejorar la legibilidad, etc. Por favor, no se debate la elección, sólo me importa a comprender cómo obtener este trabajo como Opalrb a través de ópalo/rails-ujs/opal-jquery

El de abajo Ópalo no lograr el mismo que el de arriba JS. Alguien me puede ayudar a entender por qué?

Element.expose :DataTable

Document.ready? do
  token     = Element['meta[name=csrf-token]'].attr('content');
  settings  = {
      "processing": true,
      "serverSide": true,
      "ajax": {
        "url": "/organizations/datatable.json",
        "type": 'POST',
        "beforeSend": lambda do
          xhr = `new window.XMLHttpRequest()`
          xhr.setRequestHeader('X-CSRF-Token', token)
        end 
      },
      "pagingType": "full_numbers",
      "destroy": true,
    "columns": [
      {"data": "name"},
      {"data": "desc"},
      {"data": "industry"},
      {"data": "tags"}
    ]
    }
  Element['#organizations-datatable'].DataTable(settings.to_n)

end

Lo que me estoy perdiendo aquí? ¿Por qué no este Ópalo bueno?

Edit: Esto es lo que mi ruta para este aspecto, esto asegura POST funciona para esto:

Rails.application.routes.draw do
    concern :with_datatable do
        post 'datatable', on: :collection
    end
    resources :organizations,   concerns: [:with_datatable]
end
  • Respuesta seleccionada
    Shoyeb Sheikh
    25 de abril de 2019

    Voy a empezar con señalar algunos errores en su código ,

    1. El código en beforeSend es problemático por favor, consulte el suministro de-un-xhr-método, cambie el código de abajo,

      "beforeSend": lambda do |xhr|

      `xhr.setRequestHeader('X-CSRF-Token', token)`

    encerrar xhr declaraciones en ( ` ) comillas simples inclinadas como la declaración de arriba

    1. las columnas deben tener dos dimensiones de la matriz en lugar de la matriz de objetos,

      "columns": [ ["data": "name"], ["data": "desc"], ["data": "industry"], ["data": "tags"] ]

    Resto del código se ve bien.

    Abajo está la prueba de código,

    Element.expose :DataTable
    Document.ready? do
      token     = Element['meta[name=csrf-token]'].attr('content');
      settings  = {
          "ajax": {
            "url": "/data.json",
            "type": 'POST',
            "beforeSend": lambda do |xhr|
              `xhr.setRequestHeader('X-CSRF-Token', token)`
            end 
          },
          "pagingType": "full_numbers",
          "destroy": true,
        "columns": [
          ["data": "Name"],
          ["data": "Position"],
          ["data": "Office"],
          ["data": "Extn."],
          ["data": "Start"],
          ["data": "Salary"]
        ]
        }
      Element['#organizations-datatable'].DataTable(settings.to_n)
    
    end
    

    Asegúrese de que usted tiene data.json archivo en la carpeta pública de aplicación rails, y los contenidos de la siguiente manera,

    {
        "data": [
          [
            "Tiger Nixon",
            "System Architect",
            "Edinburgh",
            "5421",
            "2011/04/25",
            "$320,800"
          ],
          [
            "Garrett Winters",
            "Accountant",
            "Tokyo",
            "8422",
            "2011/07/25",
            "$170,750"
          ],
          [
            "Ashton Cox",
            "Junior Technical Author",
            "San Francisco",
            "1562",
            "2009/01/12",
            "$86,000"
          ],
          [
            "Cedric Kelly",
            "Senior Javascript Developer",
            "Edinburgh",
            "6224",
            "2012/03/29",
            "$433,060"
          ],
          [
            "Airi Satou",
            "Accountant",
            "Tokyo",
            "5407",
            "2008/11/28",
            "$162,700"
          ],
          [
            "Brielle Williamson",
            "Integration Specialist",
            "New York",
            "4804",
            "2012/12/02",
            "$372,000"
          ],
          [
            "Herrod Chandler",
            "Sales Assistant",
            "San Francisco",
            "9608",
            "2012/08/06",
            "$137,500"
          ],
          [
            "Rhona Davidson",
            "Integration Specialist",
            "Tokyo",
            "6200",
            "2010/10/14",
            "$327,900"
          ],
          [
            "Colleen Hurst",
            "Javascript Developer",
            "San Francisco",
            "2360",
            "2009/09/15",
            "$205,500"
          ],
          [
            "Sonya Frost",
            "Software Engineer",
            "Edinburgh",
            "1667",
            "2008/12/13",
            "$103,600"
          ],
          [
            "Jena Gaines",
            "Office Manager",
            "London",
            "3814",
            "2008/12/19",
            "$90,560"
          ],
          [
            "Quinn Flynn",
            "Support Lead",
            "Edinburgh",
            "9497",
            "2013/03/03",
            "$342,000"
          ],
          [
            "Charde Marshall",
            "Regional Director",
            "San Francisco",
            "6741",
            "2008/10/16",
            "$470,600"
          ],
          [
            "Haley Kennedy",
            "Senior Marketing Designer",
            "London",
            "3597",
            "2012/12/18",
            "$313,500"
          ],
          [
            "Tatyana Fitzpatrick",
            "Regional Director",
            "London",
            "1965",
            "2010/03/17",
            "$385,750"
          ],
          [
            "Michael Silva",
            "Marketing Designer",
            "London",
            "1581",
            "2012/11/27",
            "$198,500"
          ],
          [
            "Paul Byrd",
            "Chief Financial Officer (CFO)",
            "New York",
            "3059",
            "2010/06/09",
            "$725,000"
          ],
          [
            "Gloria Little",
            "Systems Administrator",
            "New York",
            "1721",
            "2009/04/10",
            "$237,500"
          ],
          [
            "Bradley Greer",
            "Software Engineer",
            "London",
            "2558",
            "2012/10/13",
            "$132,000"
          ],
          [
            "Dai Rios",
            "Personnel Lead",
            "Edinburgh",
            "2290",
            "2012/09/26",
            "$217,500"
          ],
          [
            "Jenette Caldwell",
            "Development Lead",
            "New York",
            "1937",
            "2011/09/03",
            "$345,000"
          ],
          [
            "Yuri Berry",
            "Chief Marketing Officer (CMO)",
            "New York",
            "6154",
            "2009/06/25",
            "$675,000"
          ],
          [
            "Caesar Vance",
            "Pre-Sales Support",
            "New York",
            "8330",
            "2011/12/12",
            "$106,450"
          ],
          [
            "Doris Wilder",
            "Sales Assistant",
            "Sidney",
            "3023",
            "2010/09/20",
            "$85,600"
          ],
          [
            "Angelica Ramos",
            "Chief Executive Officer (CEO)",
            "London",
            "5797",
            "2009/10/09",
            "$1,200,000"
          ],
          [
            "Gavin Joyce",
            "Developer",
            "Edinburgh",
            "8822",
            "2010/12/22",
            "$92,575"
          ],
          [
            "Jennifer Chang",
            "Regional Director",
            "Singapore",
            "9239",
            "2010/11/14",
            "$357,650"
          ],
          [
            "Brenden Wagner",
            "Software Engineer",
            "San Francisco",
            "1314",
            "2011/06/07",
            "$206,850"
          ],
          [
            "Fiona Green",
            "Chief Operating Officer (COO)",
            "San Francisco",
            "2947",
            "2010/03/11",
            "$850,000"
          ],
          [
            "Shou Itou",
            "Regional Marketing",
            "Tokyo",
            "8899",
            "2011/08/14",
            "$163,000"
          ],
          [
            "Michelle House",
            "Integration Specialist",
            "Sidney",
            "2769",
            "2011/06/02",
            "$95,400"
          ],
          [
            "Suki Burks",
            "Developer",
            "London",
            "6832",
            "2009/10/22",
            "$114,500"
          ],
          [
            "Prescott Bartlett",
            "Technical Author",
            "London",
            "3606",
            "2011/05/07",
            "$145,000"
          ],
          [
            "Gavin Cortez",
            "Team Leader",
            "San Francisco",
            "2860",
            "2008/10/26",
            "$235,500"
          ],
          [
            "Martena Mccray",
            "Post-Sales support",
            "Edinburgh",
            "8240",
            "2011/03/09",
            "$324,050"
          ],
          [
            "Unity Butler",
            "Marketing Designer",
            "San Francisco",
            "5384",
            "2009/12/09",
            "$85,675"
          ],
          [
            "Howard Hatfield",
            "Office Manager",
            "San Francisco",
            "7031",
            "2008/12/16",
            "$164,500"
          ],
          [
            "Hope Fuentes",
            "Secretary",
            "San Francisco",
            "6318",
            "2010/02/12",
            "$109,850"
          ],
          [
            "Vivian Harrell",
            "Financial Controller",
            "San Francisco",
            "9422",
            "2009/02/14",
            "$452,500"
          ],
          [
            "Timothy Mooney",
            "Office Manager",
            "London",
            "7580",
            "2008/12/11",
            "$136,200"
          ],
          [
            "Jackson Bradshaw",
            "Director",
            "New York",
            "1042",
            "2008/09/26",
            "$645,750"
          ],
          [
            "Olivia Liang",
            "Support Engineer",
            "Singapore",
            "2120",
            "2011/02/03",
            "$234,500"
          ],
          [
            "Bruno Nash",
            "Software Engineer",
            "London",
            "6222",
            "2011/05/03",
            "$163,500"
          ],
          [
            "Sakura Yamamoto",
            "Support Engineer",
            "Tokyo",
            "9383",
            "2009/08/19",
            "$139,575"
          ],
          [
            "Thor Walton",
            "Developer",
            "New York",
            "8327",
            "2013/08/11",
            "$98,540"
          ],
          [
            "Finn Camacho",
            "Support Engineer",
            "San Francisco",
            "2927",
            "2009/07/07",
            "$87,500"
          ],
          [
            "Serge Baldwin",
            "Data Coordinator",
            "Singapore",
            "8352",
            "2012/04/09",
            "$138,575"
          ],
          [
            "Zenaida Frank",
            "Software Engineer",
            "New York",
            "7439",
            "2010/01/04",
            "$125,250"
          ],
          [
            "Zorita Serrano",
            "Software Engineer",
            "San Francisco",
            "4389",
            "2012/06/01",
            "$115,000"
          ],
          [
            "Jennifer Acosta",
            "Junior Javascript Developer",
            "Edinburgh",
            "3431",
            "2013/02/01",
            "$75,650"
          ],
          [
            "Cara Stevens",
            "Sales Assistant",
            "New York",
            "3990",
            "2011/12/06",
            "$145,600"
          ],
          [
            "Hermione Butler",
            "Regional Director",
            "London",
            "1016",
            "2011/03/21",
            "$356,250"
          ],
          [
            "Lael Greer",
            "Systems Administrator",
            "London",
            "6733",
            "2009/02/27",
            "$103,500"
          ],
          [
            "Jonas Alexander",
            "Developer",
            "San Francisco",
            "8196",
            "2010/07/14",
            "$86,500"
          ],
          [
            "Shad Decker",
            "Regional Director",
            "Edinburgh",
            "6373",
            "2008/11/13",
            "$183,000"
          ],
          [
            "Michael Bruce",
            "Javascript Developer",
            "Singapore",
            "5384",
            "2011/06/27",
            "$183,000"
          ],
          [
            "Donna Snider",
            "Customer Support",
            "New York",
            "4226",
            "2011/01/25",
            "$112,000"
          ]
        ]
      }
    

    agregar opal a Gemfile,

    gem 'opal-rails'
    
    gem 'opal-jquery'
    

    application.js.rb contenido,

    require 'opal'
    require 'jquery'
    require 'opal-jquery'
    require 'datatables.min'
    require_tree '.'
    

    agregar datatables.min.js archivo app/assets/javascripts carpeta

    html,

    <table id="organizations-datatable" class="display" style="width:100%">
        <thead>
            <tr>
                <th>Name</th>
                <th>Position</th>
                <th>Office</th>
                <th>Extn.</th>
                <th>Start date</th>
                <th>Salary</th>
            </tr>
        </thead>
        <tfoot>
            <tr>
                <th>Name</th>
                <th>Position</th>
                <th>Office</th>
                <th>Extn.</th>
                <th>Start date</th>
                <th>Salary</th>
            </tr>
        </tfoot>
    </table>
    

    NOTA :- Si quieres que funcione con el POST que tenga que ajustar su config/routes.rb,

    Agregue la siguiente entrada en las rutas.rb para su archivo json,

    Para mí fue,

    post '/data.json', :to => redirect('/data.json')
    

    Para ti será,

    post '/organizations/datatable.json', :to => redirect('/organizations/datatable.json')
    

    Código completo aquí Git del proyecto