Ruby on Rails mit Daten Tabelle basierend auf Rails Cast # 340

Question

Ich habe die Railscast 340 Tutorial folgen, aber ich konnte nicht die Daten über js rendern. Der Tisch ist leer für mich und die Daten zeigen mir nicht, was könnte schief gehen?

das ist mein clientesdatatable.rb

class ClientesDatatable 
delegate :params, :h, :link_to, :number_to_currency, to: :@views 

def initialize(view) 
    @view = view 
end 

def as_json(options = {}) 
    { 
    sEcho: params[:sEcho].to_i, 
    iTotalRecords: Cliente.count, 
    iTotalDisplayRecords: Clientes.total_entries, 
    aaData: data 
    } 
end 
def data 
    clientes.map do |cliente| 
    [ 
     h(cliente.IdCli), 
     h(cliente.IdCli), 
     h(cliente.IdCli), 
     h(cliente.IdCli), 
     h(cliente.IdCli), 
     h(cliente.IdCli), 
     h(cliente.IdCli), 
     h(cliente.IdCli), 
     h(cliente.IdCli), 
     h(cliente.IdCli), 
     h(cliente.IdCli), 
     h(cliente.IdCli) 
    ] 
    end 
end 

def clientes 
    @clientes ||= fetch_clientes 
end 

def fetch_clientes 
    clientes = Cliente.order("#{sort_column} #{sort_direction}") 
    clientes = clientes.page(page).per_page(per_page) 
    if params[:sSearch].present? 
    clientes = clientes.where("IdCli like :search", search: "%#{params[:sSearch]}%")) 
end 
clientes 
end 



def page 
    [:iDisplayStart].to_i/per_page + 1 
end 

def per_page 
    params[:iDisplayLength].to_i > 0 ? params[:iDisplayLength].to_i : 10 

end 



def sort_column 
    columns = %w[IdCli IdCli IdCli IdCli IdCli IdCli IdCli IdCli IdCli IdCli IdCli IdCli IdCli] 
# columns[params[:iSortCol_0].to_i] <-- used in video 
    columns[params[:order]["0"]["column"].to_i] #<-- works in Rails 4 
end 

def sort_direction 
    params[:order]["0"]["dir"] #<-- works in Rails 4 
# params[:sSortDir_0] == "desc" ? "desc" : "asc" <-- used in video 
end 


end 

mein clienteController

def index 

    respond_to do |format| 
    format.html 
    format.json { render json: ClientesDatatable.new(view_context)} 
    end 

mein client.coffe

jQuery -> 
    $('#clientes').DataTable 
    "Processing": true 
    "ServerSide": true 
    "Ajax": { 
     url: $('#clientes').data('source'), 
     type: "get" 
    } 

und meine Tabelle:

<table id="clientes" class="display" data-source="<%=clientes_url(format: "json")%>"><!--el id clientes es de datatables referenciado en clientes.coffe y display class es una clase de datatables--> 
    <thead> 

    <tr><!--active es para sombrear la fila--> 
     <th>Clave</th> 
     <th>Nombre</th> 
     <th>Nombre Corto</th> 
     <th>Dirección</th> 
     <th>Colonia</th> 
     <th>Credito</th> 
     <th>DiasCredito</th> 
     <th>LimiteCredito</th> 
     <th>Saldo</th> 
     <th>Ruta</th> 
     <th>Promociones</th> 
     <th>Acción</th> 
     <th></th> 

    </tr> 
    </thead> 
    <tbody id="container_clientes"> 
</tbody> 


</table> 

in localhost: 3000/cliente.json ich diesen Fehler:

Module :: DelegationError in ClientesController # Index

ClientesDatatable#params delegated to @views.params, but @views is nil: #<ClientesDatatable:0x84da9678 @view=#<#<Class:0x84dc0b20>:0x84db4528 @_routes=nil, @_config={}, @view_renderer=#<ActionView::Renderer:0x84db45dc @lookup_context=#<ActionView::LookupContext:0x84f4b4f4 @details_key=nil, @details={:locale=>[:en], :formats=>[:json], :variants=>[], :handlers=>[:erb, :builder, :raw, :ruby, :coffee, :jbuilder, :haml]}, @skip_default_locale=false, @cache=true, @prefixes=["clientes", "application"], @rendered_format=:json, @view_paths=#<ActionView::PathSet:0x84f4b490 @paths=[#<ActionView::OptimizedFileSystemResolver:0x85542bb4 @pattern=":prefix/:action{.:locale,}{.:formats,}{+:variants,}{.:handlers,}", @cache=#<ActionView::Resolver::Cache:0x85542ba0 @data=#<ActionView::Resolver::Cache::SmallCache:0x85542b8c @backend={}, @default_proc=#<Proc:0x8275fa30@/home/luis/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/actionview-4.2.6/lib/action_view/template/resolver.rb:49 (lambda)>>>, @path="/home/luis/sites/AdvanceControldatatablejs2017/app/views">, 

Answer 1

ich die Lösung dank der Anweisungen dieses Juwel gemacht gefunden haben https://github.com/antillas21/ajax-datatables-rails/wiki/Part-1----The-Installation