# Community **URL:** https://www.ruby-forum.com/c/community/3.md?page=268 [Latest](https://www.ruby-forum.com/latest.md) · [Categories](https://www.ruby-forum.com/categories.md) · [Tags](https://www.ruby-forum.com/tags.md) **Page:** 269 --- ## [Cannot run rails aplication](https://www.ruby-forum.com/t/cannot-run-rails-aplication/88312)

**Author:** [@Ronny\_Yabar\_Aizcorb](https://www.ruby-forum.com/u/Ronny_Yabar_Aizcorb)\ **Replies:** 2\ **Last updated:** [October 11, 2007, 10:42am UTC](https://www.ruby-forum.com/t/cannot-run-rails-aplication/88312 "2007-10-11T10:42:31Z")

Hi list, i got a problem, i want to start my rails aplication, but i can’t because i got this message in the browser We’re sorry, but something went wrong. We’ve been notified about this issue and we’ll take a look a… --- ## [Â¿CÃ³mo mantener las sesiones pequeÃ±as?](https://www.ruby-forum.com/t/a-ca-mo-mantener-las-sesiones-pequea-as/116875)

**Author:** [@vicmargar](https://www.ruby-forum.com/u/vicmargar)\ **Replies:** 8\ **Last updated:** [October 10, 2007, 9:18pm UTC](https://www.ruby-forum.com/t/a-ca-mo-mantener-las-sesiones-pequea-as/116875 "2007-10-10T21:18:16Z")

A ver si alguien me puede ayudar con una duda. Generalmente se suele recomendar mantener las sesiones pequeÃ±as, lo cual implica almacenar exclusivamente ids de objetos en vez de objetos enteros y acceder al objeto en… --- ## [Render y redirect uso correcto](https://www.ruby-forum.com/t/render-y-redirect-uso-correcto/116494)

**Author:** [@asclepios](https://www.ruby-forum.com/u/asclepios)\ **Replies:** 4\ **Last updated:** [October 10, 2007, 6:56pm UTC](https://www.ruby-forum.com/t/render-y-redirect-uso-correcto/116494 "2007-10-10T18:56:38Z")

Como usar render y redirect de forma correcta --- ## [Tablas muy grandes y consumo de memoria](https://www.ruby-forum.com/t/tablas-muy-grandes-y-consumo-de-memoria/116843)

**Author:** [@ISSSSaki\_Baz\_C](https://www.ruby-forum.com/u/ISSSSaki_Baz_C)\ **Replies:** 3\ **Last updated:** [October 10, 2007, 5:47pm UTC](https://www.ruby-forum.com/t/tablas-muy-grandes-y-consumo-de-memoria/116843 "2007-10-10T17:47:14Z")

Hola, supongamos que tengo una tabla con muchas entradas, pero que la aplicaciÃ³n web en Rails nunca va a tener que acceder a toda ella, ya que hay una columna “cliente”, y a cada cliente sÃ³lo se le van a mostrar vÃ… --- ## [Santa paziensa](https://www.ruby-forum.com/t/santa-paziensa/116858)

**Author:** [@alesc](https://www.ruby-forum.com/u/alesc)\ **Replies:** 13\ **Last updated:** [October 10, 2007, 3:27pm UTC](https://www.ruby-forum.com/t/santa-paziensa/116858 "2007-10-10T15:27:17Z")

Salve a tutti, sono un “giovane” (42 anni)appassionato da sempre di programmazione. Ora il prolema Ã¨ questo: tanti anni fa programmavo in Cobol, C e usavo per piccoli applicativi gestionali Delphi. Oggi, dopo circa … --- ## [Select onchange](https://www.ruby-forum.com/t/select-onchange/116847)

**Author:** [@gnugnaman](https://www.ruby-forum.com/u/gnugnaman)\ **Replies:** 9\ **Last updated:** [October 10, 2007, 3:23pm UTC](https://www.ruby-forum.com/t/select-onchange/116847 "2007-10-10T15:23:40Z")

Ciao a tutti, sono alle primissime armi. Vorrei inserire in una pagina rhtml una select. A seconda del valore selezionato dall’utente, poi, vorrei che la pagina si autoaggiornasse tenendo conto appunto del valore che … --- ## [Seleccionar un campo en un select](https://www.ruby-forum.com/t/seleccionar-un-campo-en-un-select/116826)

**Author:** [@rantamplan](https://www.ruby-forum.com/u/rantamplan)\ **Replies:** 2\ **Last updated:** [October 10, 2007, 12:56pm UTC](https://www.ruby-forum.com/t/seleccionar-un-campo-en-un-select/116826 "2007-10-10T12:56:54Z")

Hola! Se que es una pregunta estÃºpida pero no consigo hacer que funcione. A ver tengo el siguiente select: \<%= select\_tag(‘cliente’ , options\_for\_select(Cliente.find\_all.collect {|e| \[ e.cliente, e.id \] }\<\< \["",""\],… --- ## [\[Rails\] form multi-step?](https://www.ruby-forum.com/t/rails-form-multi-step/116845)

**Author:** [@cpecchia](https://www.ruby-forum.com/u/cpecchia)\ **Replies:** 12\ **Last updated:** [October 10, 2007, 12:54pm UTC](https://www.ruby-forum.com/t/rails-form-multi-step/116845 "2007-10-10T12:54:54Z")

Salve a tutti, vi propongo un quesito “di stile”. Supponiamo di avere i seguenti modelli (uno degli esempi piÃ¹ classici): class User \< ActiveRecord::Base has\_many :song\_lists has\_many :songs, :through =\> :song\_list… --- ## [Insertar cÃ³digo ruby en html (snippets)](https://www.ruby-forum.com/t/insertar-ca-digo-ruby-en-html-snippets/116851)

**Author:** [@emili](https://www.ruby-forum.com/u/emili)\ **Replies:** 0\ **Last updated:** [October 10, 2007, 12:31pm UTC](https://www.ruby-forum.com/t/insertar-ca-digo-ruby-en-html-snippets/116851 "2007-10-10T12:31:10Z")

Hola a todos. Estoy desarrollando una aplicaciÃ³n en la que me iria muy bien poder insertar cÃ³digo ror mediante un editor y guardarlo en la base de datos, mÃ¡s o menos lo que radiant llama snippets. Tengo un modelo q… --- ## [Relazioni tra tabelle](https://www.ruby-forum.com/t/relazioni-tra-tabelle/116709)

**Author:** [@jamba](https://www.ruby-forum.com/u/jamba)\ **Replies:** 10\ **Last updated:** [October 10, 2007, 9:48am UTC](https://www.ruby-forum.com/t/relazioni-tra-tabelle/116709 "2007-10-10T09:48:41Z")

prima tabella customers, seconda tabella invoices con customers\_id che fa chiaramente riferimento a customers. nel model di costumers, has\_many invoice nel model di invoices belongs\_to customer. ho poi creato una vie… --- ## [Visualizar fotos subidas con attachment\_fu](https://www.ruby-forum.com/t/visualizar-fotos-subidas-con-attachment-fu/116711)

**Author:** [@zaid](https://www.ruby-forum.com/u/zaid)\ **Replies:** 7\ **Last updated:** [October 9, 2007, 9:57pm UTC](https://www.ruby-forum.com/t/visualizar-fotos-subidas-con-attachment-fu/116711 "2007-10-09T21:57:48Z")

Hoooola He subido fotos con attachment\_fu y no tengo problemas. La ruta de subida es ./public/images. Lo malo viene cuando quiero visualizarlas, pq en la bbdd no me pone la ruta real, ya que me crea automÃ¡ticamente … --- ## [Calendario](https://www.ruby-forum.com/t/calendario/116792)

**Author:** [@masoto](https://www.ruby-forum.com/u/masoto)\ **Replies:** 1\ **Last updated:** [October 9, 2007, 8:55pm UTC](https://www.ruby-forum.com/t/calendario/116792 "2007-10-09T20:55:55Z")

Hola a todos, tengo que implementar en una aplicaciÃ³n un calendario con eventos y no quiero utilizar ninguno de los hecho que utilizan Javascript. Lo que quiero es tener algÃºna funciÃ³n, poe ejemplo en un helper, qu… --- ## [Recoger archivo adjunto](https://www.ruby-forum.com/t/recoger-archivo-adjunto/116725)

**Author:** [@Luisa\_Peralta](https://www.ruby-forum.com/u/Luisa_Peralta)\ **Replies:** 1\ **Last updated:** [October 9, 2007, 8:52pm UTC](https://www.ruby-forum.com/t/recoger-archivo-adjunto/116725 "2007-10-09T20:52:13Z")

Que tal? Todo bien??.. Nesecito hacer algo que me haga lo siguiente… tu me mandas un correo a mi email… y le ADJUNTAS un archivo de sonido… ya sea algo \*.WAV, se desea que de alguna forma yo pueda descargar el correo… --- ## [Problema con il tipo float](https://www.ruby-forum.com/t/problema-con-il-tipo-float/116715)

**Author:** [@matteobo77](https://www.ruby-forum.com/u/matteobo77)\ **Replies:** 10\ **Last updated:** [October 9, 2007, 7:33pm UTC](https://www.ruby-forum.com/t/problema-con-il-tipo-float/116715 "2007-10-09T19:33:37Z")

Ho iniziato da poco a programmare in ruby, e stavo facendo un piccolo programma che, dato un sistema di disequazioni, trova i punti comuni a queste, impostando un problema di programmazione lineare. Viene chiesto in i… --- ## [Assoziierte Objekte werden nicht abgespeichert](https://www.ruby-forum.com/t/assoziierte-objekte-werden-nicht-abgespeichert/116769)

**Author:** [@mvondung](https://www.ruby-forum.com/u/mvondung)\ **Replies:** 2\ **Last updated:** [October 9, 2007, 6:00pm UTC](https://www.ruby-forum.com/t/assoziierte-objekte-werden-nicht-abgespeichert/116769 "2007-10-09T18:00:07Z")

Hallo, wir haben ein Problem, das die assoziierte Objekte nur abgespeichert werden wenn das parent Objekt noch nicht in der Datenbank vorhanden ist. Unter Rails 1.1.6 ging dies noch. Modelle: class Father \< ActiveR… --- ## [Poner imagen en botÃ³n de examinar (attachment\_fu)](https://www.ruby-forum.com/t/poner-imagen-en-bota-n-de-examinar-attachment-fu/116717)

**Author:** [@zaid](https://www.ruby-forum.com/u/zaid)\ **Replies:** 2\ **Last updated:** [October 9, 2007, 9:01am UTC](https://www.ruby-forum.com/t/poner-imagen-en-bota-n-de-examinar-attachment-fu/116717 "2007-10-09T09:01:27Z")

Hooola Tengo el siguiente formulario: \<% form\_for(:establishment\_photo, :url =\> {:action =\> “create” }, :html =\> { :multipart =\> true }) do |f| -%\> Nueva Imagen \<%= f.file\_field :uploaded\_… --- ## [HTML-Email mit eingebautem Bild](https://www.ruby-forum.com/t/html-email-mit-eingebautem-bild/116640)

**Author:** [@stephanos](https://www.ruby-forum.com/u/stephanos)\ **Replies:** 2\ **Last updated:** [October 8, 2007, 7:49pm UTC](https://www.ruby-forum.com/t/html-email-mit-eingebautem-bild/116640 "2007-10-08T19:49:44Z")

Hallo, wie kann ich mittels ActionMailer eine Email versenden, bei der ein Bild mitgeschickt und in der Mail angezeigt wird. Das Ergebnis soll also folgendermassen aussehen: Hallo Username, dies ist das von dir gew… --- ## [Recherche dÃ©veloppeur Ruby / Ruby on Rails ( H/F) sur Paris](https://www.ruby-forum.com/t/recherche-da-veloppeur-ruby-ruby-on-rails-h-f-sur-paris/116647)

**Author:** [@Fabien\_P](https://www.ruby-forum.com/u/Fabien_P)\ **Replies:** 2\ **Last updated:** [October 8, 2007, 3:21pm UTC](https://www.ruby-forum.com/t/recherche-da-veloppeur-ruby-ruby-on-rails-h-f-sur-paris/116647 "2007-10-08T15:21:47Z")

Bonjour à tous, Nous recherchons pour un de nos clients un développeur RoR même junior. Comme un url vaut mieux qu’un long mail, j’ai mis l’annonce sur elle contient, je pense, toutes les informations que vous pour… --- ## [Dudas, instalacion de rails en fedora 4, Apache/2.0.54](https://www.ruby-forum.com/t/dudas-instalacion-de-rails-en-fedora-4-apache-2-0-54/116485)

**Author:** [@miguel](https://www.ruby-forum.com/u/miguel)\ **Replies:** 5\ **Last updated:** [October 8, 2007, 11:39am UTC](https://www.ruby-forum.com/t/dudas-instalacion-de-rails-en-fedora-4-apache-2-0-54/116485 "2007-10-08T11:39:05Z")

Hola Amigos ROReros, cmoo estÃ¡n Ahora que mi app estÃ¡ lista para produccion, tengo que crear el ambiente en mi servidor, tengo un acceso ssh de root , por lo que puedo instalar sin problemas. pero como es mi pri… --- ## [\[rails\] mostrare checkbox in collezioni ( e will\_paginate?)](https://www.ruby-forum.com/t/rails-mostrare-checkbox-in-collezioni-e-will-paginate/116587)

**Author:** [@stratboy](https://www.ruby-forum.com/u/stratboy)\ **Replies:** 4\ **Last updated:** [October 8, 2007, 11:05am UTC](https://www.ruby-forum.com/t/rails-mostrare-checkbox-in-collezioni-e-will-paginate/116587 "2007-10-08T11:05:02Z")

Salve. Ho una tabella con una colonna booleana ‘visible’. Per esercizio sto cercando di paginarla mostrando un checkbox per ogni entry, checked o unchecked a seconda se visible Ã¨ true o false (questo controllo lo far… --- ## [Duda gettext](https://www.ruby-forum.com/t/duda-gettext/116562)

**Author:** [@CSSSSsar\_Duque](https://www.ruby-forum.com/u/CSSSSsar_Duque)\ **Replies:** 3\ **Last updated:** [October 8, 2007, 9:58am UTC](https://www.ruby-forum.com/t/duda-gettext/116562 "2007-10-08T09:58:06Z")

Hola, Alguien conoce algún modo de hacer que si el navegador manda request.env\[“HTTP\_ACCEPT\_LANGUAGE”\] “es”, “es\_AR” o el que fuera gettext lea en #{RAILS\_ROOT}/locale/es\_ES/?. Supongo que se puede hacer quick’n dirt… --- ## [Zweiter RESTful Controller fÃ¼r dieselbe Ressource?!](https://www.ruby-forum.com/t/zweiter-restful-controller-fa-r-dieselbe-ressource/116584)

**Author:** [@spiderware](https://www.ruby-forum.com/u/spiderware)\ **Replies:** 2\ **Last updated:** [October 8, 2007, 8:34am UTC](https://www.ruby-forum.com/t/zweiter-restful-controller-fa-r-dieselbe-ressource/116584 "2007-10-08T08:34:06Z")

Liebe RoRUG, mein Problem ist kurz beschrieben: Ich möchte gerne eine zweiten REST-ful Controller für dieselbe Ressource haben. Nimmt man mal den einfachen Fall, dass man ein Model sowohl genestet (Anzeigen der Meil… --- ## [Oktobertreffen der RUG Rhein-Main](https://www.ruby-forum.com/t/oktobertreffen-der-rug-rhein-main/116611)

**Author:** [@codeblogger](https://www.ruby-forum.com/u/codeblogger)\ **Replies:** 0\ **Last updated:** [October 7, 2007, 11:20pm UTC](https://www.ruby-forum.com/t/oktobertreffen-der-rug-rhein-main/116611 "2007-10-07T23:20:49Z")

Hallo, hiermit lade ich alle Interessierten zum Oktobertreffen der RUG Rhein-Main ein. Am 16. Oktober treffen wir uns um 19.00 Uhr zum “Debriefing” von der RailsConf Europe. Treffpunkt ist wieder der “Neue Volkswir… --- ## [Imagen como botÃ³n de formulario](https://www.ruby-forum.com/t/imagen-como-bota-n-de-formulario/116599)

**Author:** [@zaid](https://www.ruby-forum.com/u/zaid)\ **Replies:** 2\ **Last updated:** [October 7, 2007, 9:49pm UTC](https://www.ruby-forum.com/t/imagen-como-bota-n-de-formulario/116599 "2007-10-07T21:49:59Z")

Hola CÃ³mo se puede poner una imagen como botÃ³n de un formulario?? Estoy probando asÃ: \<%= submit\_tag ( image\_tag("…/images/aceptar.gif", :border =\> 0), :value=\> ‘Select’) %\> Pero me da error… Gracias --- ## [\[rails\] &block negli argomenti?](https://www.ruby-forum.com/t/rails-block-negli-argomenti/116583)

**Author:** [@stratboy](https://www.ruby-forum.com/u/stratboy)\ **Replies:** 2\ **Last updated:** [October 7, 2007, 4:52pm UTC](https://www.ruby-forum.com/t/rails-block-negli-argomenti/116583 "2007-10-07T16:52:27Z")

Salve! Qualcuno sa dirmi cosa significa il termine ‘&block’ quando scritto come ultimo argomento nella firma di una funzione in un qualche documento di Rails? es. link\_to\_function(name, \*args, &block) Tkz! --- ## [Rhtml to pdf?](https://www.ruby-forum.com/t/rhtml-to-pdf/116312)

**Author:** [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\ **Replies:** 7\ **Last updated:** [October 7, 2007, 2:29am UTC](https://www.ruby-forum.com/t/rhtml-to-pdf/116312 "2007-10-07T02:29:23Z")

Bonjour, Je souhaiterais directement transformer le rendu d’un rhtml en pdf. J’ai testé avec htmldoc, mais il ne tient pas compte des css. Princexml le fait mais c’est relativement très très cher. Connaissez vous un … --- ## [Error con will\_paginate](https://www.ruby-forum.com/t/error-con-will-paginate/116522)

**Author:** [@fonsito](https://www.ruby-forum.com/u/fonsito)\ **Replies:** 1\ **Last updated:** [October 6, 2007, 7:35pm UTC](https://www.ruby-forum.com/t/error-con-will-paginate/116522 "2007-10-06T19:35:02Z")

Ante todo, lo siento si existe algÃºn otro post con el mismo error ya respondido, pero mi amigo google ya no me trata como antaÃ±o. Tal y como vi en un railcast, me puse a incluir las funciones de paginaciÃ³n del plu… --- ## [Problema con attachment\_fu](https://www.ruby-forum.com/t/problema-con-attachment-fu/116467)

**Author:** [@zaid](https://www.ruby-forum.com/u/zaid)\ **Replies:** 3\ **Last updated:** [October 6, 2007, 12:10pm UTC](https://www.ruby-forum.com/t/problema-con-attachment-fu/116467 "2007-10-06T12:10:45Z")

Hola Estoy usando attachment\_fu y RMagick para subir fotos, cambiar el tamaÃ±o y crear un thumbnail. El caso que cuando aÃ±ado una imagen, la primera vez la hace bien y el resto da error al hacer el save en el contro… --- ## [Problema con ereditarietÃ e moduli](https://www.ruby-forum.com/t/problema-con-ereditarieta-e-moduli/116000)

**Author:** [@kaaio](https://www.ruby-forum.com/u/kaaio)\ **Replies:** 7\ **Last updated:** [October 6, 2007, 11:26am UTC](https://www.ruby-forum.com/t/problema-con-ereditarieta-e-moduli/116000 "2007-10-06T11:26:06Z")

Sto lavorando ad un piccolo programma in Ruby, in particolare mi manca la GUI. Per farla uso le wxWidgets, andando a definire nel file gui.rb una classe Gui che eredita Wx:App, quindi la dichiaro cosÃ¬: class Gui \< W… --- ## [Duda del uso de self y ambito de las variables](https://www.ruby-forum.com/t/duda-del-uso-de-self-y-ambito-de-las-variables/115888)

**Author:** [@horix](https://www.ruby-forum.com/u/horix)\ **Replies:** 8\ **Last updated:** [October 6, 2007, 4:04am UTC](https://www.ruby-forum.com/t/duda-del-uso-de-self-y-ambito-de-las-variables/115888 "2007-10-06T04:04:46Z")

Hola lista, tengo una pregunta para hacerles. Tengo dentro del controlador quiero declarar una variable de instancia que se llama @usuario, en determinado momento del programa se llama a una funcion que hace un find a… [Previous page](https://www.ruby-forum.com/c/community/3.md?page=267) [Next page](https://www.ruby-forum.com/c/community/3.md?page=269)