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¿Cómo usar marcadores de posición en lugar de etiquetas en simple_form? (4)

Quiero usar marcadores de posición en cualquier lugar de mi aplicación en lugar de etiquetas. Estoy usando simple_form y Rails (3.2.14). ¿Cómo puedo especificar en el archivo de configuración simple_form para usar marcadores de posición en lugar de etiquetas?

En los inicializadores hay un archivo simple_form.rb, es decir

# Use this setup block to configure all options available in SimpleForm. SimpleForm.setup do |config| # Wrappers are used by the form builder to generate a # complete input. You can remove any component from the # wrapper, change the order or even add your own to the # stack. The options given below are used to wrap the # whole input. config.wrappers :default, :class => :input, :hint_class => :field_with_hint, :error_class => :field_with_errors do |b| ## Extensions enabled by default # Any of these extensions can be disabled for a # given input by passing: `f.input EXTENSION_NAME => false`. # You can make any of these extensions optional by # renaming `b.use` to `b.optional`. # Determines whether to use HTML5 (:email, :url, ...) # and required attributes b.use :html5 # Calculates placeholders automatically from I18n # You can also pass a string as f.input :placeholder => "Placeholder" b.use :placeholder ## Optional extensions # They are disabled unless you pass `f.input EXTENSION_NAME => :lookup` # to the input. If so, they will retrieve the values from the model # if any exists. If you want to enable the lookup for any of those # extensions by default, you can change `b.optional` to `b.use`. # Calculates maxlength from length validations for string inputs b.optional :maxlength # Calculates pattern from format validations for string inputs b.optional :pattern # Calculates min and max from length validations for numeric inputs b.optional :min_max # Calculates readonly automatically from readonly attributes b.optional :readonly ## Inputs b.use :label_input b.use :hint, :wrap_with => { :tag => :span, :class => :hint } b.use :error, :wrap_with => { :tag => :span, :class => :error } end # The default wrapper to be used by the FormBuilder. config.default_wrapper = :default # Define the way to render check boxes / radio buttons with labels. # Defaults to :nested for bootstrap config. # :inline => input + label # :nested => label > input config.boolean_style = :nested # Default class for buttons config.button_class = ''btn'' # Method used to tidy up errors. Specify any Rails Array method. # :first lists the first message for each field. # Use :to_sentence to list all errors for each field. # config.error_method = :first # Default tag used for error notification helper. config.error_notification_tag = :div # CSS class to add for error notification helper. config.error_notification_class = ''alert alert-error'' # ID to add for error notification helper. # config.error_notification_id = nil # Series of attempts to detect a default label method for collection. # config.collection_label_methods = [ :to_label, :name, :title, :to_s ] # Series of attempts to detect a default value method for collection. # config.collection_value_methods = [ :id, :to_s ] # You can wrap a collection of radio/check boxes in a pre-defined tag, defaulting to none. # config.collection_wrapper_tag = nil # You can define the class to use on all collection wrappers. Defaulting to none. # config.collection_wrapper_class = nil # You can wrap each item in a collection of radio/check boxes with a tag, # defaulting to :span. Please note that when using :boolean_style = :nested, # SimpleForm will force this option to be a label. # config.item_wrapper_tag = :span # You can define a class to use in all item wrappers. Defaulting to none. # config.item_wrapper_class = nil # How the label text should be generated altogether with the required text. # config.label_text = lambda { |label, required| "#{required} #{label}" } # You can define the class to use on all labels. Default is nil. config.label_class = ''control-label'' # You can define the class to use on all forms. Default is simple_form. # config.form_class = :simple_form # You can define which elements should obtain additional classes # config.generate_additional_classes_for = [:wrapper, :label, :input] # Whether attributes are required by default (or not). Default is true. # config.required_by_default = true # Tell browsers whether to use default HTML5 validations (novalidate option). # Default is enabled. config.browser_validations = false # Collection of methods to detect if a file type was given. # config.file_methods = [ :mounted_as, :file?, :public_filename ] # Custom mappings for input types. This should be a hash containing a regexp # to match as key, and the input type that will be used when the field name # matches the regexp as value. # config.input_mappings = { /count/ => :integer } # Custom wrappers for input types. This should be a hash containing an input # type as key and the wrapper that will be used for all inputs with specified type. # config.wrapper_mappings = { :string => :prepend } # Default priority for time_zone inputs. # config.time_zone_priority = nil # Default priority for country inputs. # config.country_priority = nil # Default size for text inputs. # config.default_input_size = 50 # When false, do not use translations for labels. # config.translate_labels = true # Automatically discover new inputs in Rails'' autoload path. # config.inputs_discovery = true # Cache SimpleForm inputs discovery # config.cache_discovery = !Rails.env.development? end


Solución para formularios habilitados para bootstrap

Para que esto funcione con Bootstrap tuve que actualizar simple_form_bootstrap.rb y comentar las entradas de la b.use :label en la configuración para vertical_form y horizontal_form :

#b.use :label, class: ''control-label'' b.use :placeholder

Luego, como @Bigxiang mencionó correctamente los marcadores de posición, todos deben tener un valor definido en su simple_form.{LANG}.yml .

en: placeholders: defaults: first_name: First name last_name: Last name user: email: Email

Tenga en cuenta que no tiene que especificar el modelo cuando use traducciones genéricas defaults , como primer nombre, last_name en mi ejemplo.


Necesita 3 pasos para habilitar mostrar marcadores de posición en lugar de etiquetas automáticamente y necesita hacer más configuraciones.

  1. asegúrese de que b.use :placeholder en simple_form.rb

  2. asegúrese de que b.use :input lugar de b.use :label_input

  3. más importante, modifique su simple_form.en.yml:

    en
      forma simple:
        "sí Sí''
        "no no''
      necesario:
        texto: ''requerido''
        marca: ''*''
      marcadores de posición:
        usuario:
          nombre nombre''

en tu pagina:

<%= simple_form_for @user do |f|%> <%= f.input :name%> <% end%>

Cada marcador de posición debe definirse aquí, o no se mostrará.


Usted simplemente altera, en initializers / simple_form.rb:

## Inputs b.use :label_input

a

## Inputs b.use :input

y, en sus vistas, simplemente use el atributo: marcador de posición en lugar de: etiqueta


simple_form permite ocultar una etiqueta individual pasando una label:false para cada entrada. Por ejemplo: <%= f.input :email, placeholder: ''Email'', label:false %> ocultará la etiqueta de su entrada de correo electrónico en un formulario.