undefined method `[]' for #<#<Class:000056149eba4010>:0x00005614a3515370>

[defaultzero]

I can't for the life of me figure out why I keep getting this error. Any help would be greatly appreciated.

RUBY RAILS Rails 6.0.2.2 Ruby 2.6.4p104

GEM USED using ajax-datatables-rails (1.2.0)

WEBPACKER JS FILES "datatables.net": "^1.10.20", "datatables.net-bs": "^1.10.20", "datatables.net-bs4": "1.10.20", "datatables.net-buttons": "^1.6.1", "datatables.net-buttons-bs": "^1.6.1", "datatables.net-keytable": "2.5.1", "datatables.net-keytable-bs": "2.5.1", "datatables.net-responsive": "^2.2.3", "datatables.net-responsive-bs": "^2.2.3", "datatables.net-select": "^1.3.1", "datatables.net-select-bs": "^1.3.1",

Datatable Class

class ModelDatatable < AjaxDatatablesRails::ActiveRecord

  def view_columns
    @view_columns ||= {
      name: { source: "Model.name" },
      current: { source: "Model.current" },
      remarks: { source: "Model.remarks" },
    }
  end

  private

  def data
    records.map do |record|
      {
        name: record.name,
        current: record.current,
        remarks: record.remarks,
        DT_RowId:   record.id,
      }
    end
  end

  def get_raw_records
    Model.all
  end

end

Javascript

var modelsTable = $('#models-table').DataTable({
  "processing": true,
  "serverSide": true,
  "ajax": {
    'url': $('#models-table').data('source'),
    'type': 'POST',
    'beforeSend': function(xhr) {xhr.setRequestHeader('X-CSRF-Token', $('meta[name="csrf-token"]').attr('content'))},
  },
  "drawCallback": function(settings) {
  },
  "pagingType": "full_numbers",
  "columns": [
    {"data": "name"},
    {"data": "current"},
    {"data": "remarks"},
  ],
});

[defaultzero]

Solved the issue. The params are inserted differently than in 0.40

BEFORE (Incorrect)

  def datatable
    respond_to do |format|
      format.json { render json: ModelDatatable.new(view_context) }
    end
  end

AFTER (Correct)

  def datatable
    respond_to do |format|
      format.json { render json: ModelDatatable.new(params, view_context: view_context) }
    end
  end