ruby-on-rails - simple_form - rails forms select

¿Cómo usar marcadores de posición en lugar de etiquetas en simple_form?

Question

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

Answer 1

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.

Answer 2

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.

Answer 3

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

Answer 4

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.