Action View Form Tag Helpers
Provides a number of methods for creating form tags that don’t rely on an Active Record object assigned to the template like FormHelper
does. Instead, you provide the names and values manually.
NOTE: The HTML options disabled
, readonly
, and multiple
can all be treated as booleans. So specifying disabled: true
will give disabled="disabled"
.
- B
- C
- D
- E
- F
- H
- I
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- W
- ActionView::Helpers::UrlHelper
- ActionView::Helpers::TextHelper
- ActionView::Helpers::ContentExfiltrationPreventionHelper
Instance Public methods
button_tag(content_or_options = nil, options = nil, &block) Link
Creates a button element that defines a submit
button, reset
button or a generic button which can be used in JavaScript, for example. You can use the button tag as a regular submit tag but it isn’t supported in legacy browsers. However, the button tag does allow for richer labels such as images and emphasis, so this helper will also accept a block. By default, it will create a button tag with type submit
, if type is not given.
Options
-
:data
- This option can be used to add custom data attributes. -
:disabled
- If true, the user will not be able to use this input. -
Any other key creates standard HTML options for the tag.
Examples
button_tag
# => <button name="button" type="submit">Button</button>
button_tag 'Reset', type: 'reset'
# => <button name="button" type="reset">Reset</button>
button_tag 'Button', type: 'button'
# => <button name="button" type="button">Button</button>
button_tag 'Reset', type: 'reset', disabled: true
# => <button name="button" type="reset" disabled="disabled">Reset</button>
button_tag(type: 'button') do
content_tag(:strong, 'Ask me!')
end
# => <button name="button" type="button">
# <strong>Ask me!</strong>
# </button>
check_box_tag(name, options = {})
check_box_tag(name, value, options = {})
check_box_tag(name, value, checked, options = {})
Link
Creates a check box form input tag.
Options
-
:value
- The value of the input. Defaults to"1"
. -
:checked
- If set to true, the checkbox will be checked by default. -
:disabled
- If set to true, the user will not be able to use this input. -
Any other key creates standard HTML options for the tag.
Examples
check_box_tag 'accept'
# => <input id="accept" name="accept" type="checkbox" value="1" />
check_box_tag 'rock', 'rock music'
# => <input id="rock" name="rock" type="checkbox" value="rock music" />
check_box_tag 'receive_email', 'yes', true
# => <input checked="checked" id="receive_email" name="receive_email" type="checkbox" value="yes" />
check_box_tag 'tos', 'yes', false, class: 'accept_tos'
# => <input class="accept_tos" id="tos" name="tos" type="checkbox" value="yes" />
check_box_tag 'eula', 'accepted', false, disabled: true
# => <input disabled="disabled" id="eula" name="eula" type="checkbox" value="accepted" />
# File actionview/lib/action_view/helpers/form_tag_helper.rb, line 455 def check_box_tag(name, *args) if args.length >= 4 raise ArgumentError, "wrong number of arguments (given #{args.length + 1}, expected 1..4)" end options = args.extract_options! value, checked = args.empty? ? ["1", false] : [*args, false] html_options = { "type" => "checkbox", "name" => name, "id" => sanitize_to_id(name), "value" => value }.update(options.stringify_keys) html_options["checked"] = "checked" if checked tag :input, html_options end
color_field_tag(name, value = nil, options = {}) Link
Creates a text field of type “color”.
Options
Supports the same options as text_field_tag
.
Examples
color_field_tag 'name'
# => <input id="name" name="name" type="color" />
color_field_tag 'color', '#DEF726'
# => <input id="color" name="color" type="color" value="#DEF726" />
color_field_tag 'color', nil, class: 'special_input'
# => <input class="special_input" id="color" name="color" type="color" />
color_field_tag 'color', '#DEF726', class: 'special_input', disabled: true
# => <input disabled="disabled" class="special_input" id="color" name="color" type="color" value="#DEF726" />
date_field_tag(name, value = nil, options = {}) Link
Creates a text field of type “date”.
Options
Supports the same options as text_field_tag
.
Examples
date_field_tag 'name'
# => <input id="name" name="name" type="date" />
date_field_tag 'date', '2014-12-31'
# => <input id="date" name="date" type="date" value="2014-12-31" />
date_field_tag 'date', nil, class: 'special_input'
# => <input class="special_input" id="date" name="date" type="date" />
date_field_tag 'date', '2014-12-31', class: 'special_input', disabled: true
# => <input disabled="disabled" class="special_input" id="date" name="date" type="date" value="2014-12-31" />
datetime_field_tag(name, value = nil, options = {}) Link
Creates a text field of type “datetime-local”.
Options
Supports the same options as text_field_tag
. Additionally, supports:
-
:min
- The minimum acceptable value. -
:max
- The maximum acceptable value. -
:step
- The acceptable value granularity. -
:include_seconds
- Include seconds in the output timestamp format (true by default).
Examples
datetime_field_tag 'name'
# => <input id="name" name="name" type="datetime-local" />
datetime_field_tag 'datetime', '2014-01-01T01:01'
# => <input id="datetime" name="datetime" type="datetime-local" value="2014-01-01T01:01" />
datetime_field_tag 'datetime', nil, class: 'special_input'
# => <input class="special_input" id="datetime" name="datetime" type="datetime-local" />
datetime_field_tag 'datetime', '2014-01-01T01:01', class: 'special_input', disabled: true
# => <input disabled="disabled" class="special_input" id="datetime" name="datetime" type="datetime-local" value="2014-01-01T01:01" />
email_field_tag(name, value = nil, options = {}) Link
Creates a text field of type “email”.
Options
Supports the same options as text_field_tag
.
Examples
email_field_tag 'name'
# => <input id="name" name="name" type="email" />
email_field_tag 'email', 'email@example.com'
# => <input id="email" name="email" type="email" value="email@example.com" />
email_field_tag 'email', nil, class: 'special_input'
# => <input class="special_input" id="email" name="email" type="email" />
email_field_tag 'email', 'email@example.com', class: 'special_input', disabled: true
# => <input disabled="disabled" class="special_input" id="email" name="email" type="email" value="email@example.com" />
field_id(object_name, method_name, *suffixes, index: nil, namespace: nil) Link
Generate an HTML id
attribute value for the given name and field combination
Return the value generated by the FormBuilder
for the given attribute name.
<%= label_tag :post, :title %>
<%= text_field :post, :title, aria: { describedby: field_id(:post, :title, :error) } %>
<%= tag.span("is blank", id: field_id(:post, :title, :error) %>
In the example above, the <input type="text">
element built by the call to text_field
declares an aria-describedby
attribute referencing the <span>
element, sharing a common id
root (post_title
, in this case).
# File actionview/lib/action_view/helpers/form_tag_helper.rb, line 102 def field_id(object_name, method_name, *suffixes, index: nil, namespace: nil) if object_name.respond_to?(:model_name) object_name = object_name.model_name.singular end sanitized_object_name = object_name.to_s.gsub(/\]\[|[^-a-zA-Z0-9:.]/, "_").delete_suffix("_") sanitized_method_name = method_name.to_s.delete_suffix("?") [ namespace, sanitized_object_name.presence, (index unless sanitized_object_name.empty?), sanitized_method_name, *suffixes, ].tap(&:compact!).join("_") end
field_name(object_name, method_name, *method_names, multiple: false, index: nil) Link
Generate an HTML name
attribute value for the given name and field combination
Return the value generated by the FormBuilder
for the given attribute name.
<%= text_field :post, :title, name: field_name(:post, :title, :subtitle) %>
<%# => <input type="text" name="post[title][subtitle]"> %>
<%= text_field :post, :tag, name: field_name(:post, :tag, multiple: true) %>
<%# => <input type="text" name="post[tag][]"> %>
# File actionview/lib/action_view/helpers/form_tag_helper.rb, line 132 def field_name(object_name, method_name, *method_names, multiple: false, index: nil) names = method_names.map! { |name| "[#{name}]" }.join # a little duplication to construct fewer strings case when object_name.blank? "#{method_name}#{names}#{multiple ? "[]" : ""}" when index "#{object_name}[#{index}][#{method_name}]#{names}#{multiple ? "[]" : ""}" else "#{object_name}[#{method_name}]#{names}#{multiple ? "[]" : ""}" end end
field_set_tag(legend = nil, options = nil, &block) Link
Creates a field set for grouping HTML form elements.
legend
will become the fieldset’s title (optional as per W3C). options
accept the same values as tag.
Examples
<%= field_set_tag do %>
<p><%= text_field_tag 'name' %></p>
<% end %>
# => <fieldset><p><input id="name" name="name" type="text" /></p></fieldset>
<%= field_set_tag 'Your details' do %>
<p><%= text_field_tag 'name' %></p>
<% end %>
# => <fieldset><legend>Your details</legend><p><input id="name" name="name" type="text" /></p></fieldset>
<%= field_set_tag nil, class: 'format' do %>
<p><%= text_field_tag 'name' %></p>
<% end %>
# => <fieldset class="format"><p><input id="name" name="name" type="text" /></p></fieldset>
# File actionview/lib/action_view/helpers/form_tag_helper.rb, line 638 def field_set_tag(legend = nil, options = nil, &block) content = [] content << content_tag("legend", legend) unless legend.blank? content << capture(&block) if block_given? content_tag(:fieldset, safe_join(content), options) end
file_field_tag(name, options = {}) Link
Creates a file upload field. If you are using file uploads then you will also need to set the multipart option for the form tag:
<%= form_tag '/upload', multipart: true do %>
<label for="file">File to Upload</label> <%= file_field_tag "file" %>
<%= submit_tag %>
<% end %>
The specified URL will then be passed a File
object containing the selected file, or if the field was left blank, a StringIO object.
Options
-
Creates standard HTML attributes for the tag.
-
:disabled
- If set to true, the user will not be able to use this input. -
:multiple
- If set to true, *in most updated browsers* the user will be allowed to select multiple files. -
:accept
- If set to one or multiple mime-types, the user will be suggested a filter when choosing a file. You still need to set up model validations.
Examples
file_field_tag 'attachment'
# => <input id="attachment" name="attachment" type="file" />
file_field_tag 'avatar', class: 'profile_input'
# => <input class="profile_input" id="avatar" name="avatar" type="file" />
file_field_tag 'picture', disabled: true
# => <input disabled="disabled" id="picture" name="picture" type="file" />
file_field_tag 'resume', value: '~/resume.doc'
# => <input id="resume" name="resume" type="file" value="~/resume.doc" />
file_field_tag 'user_pic', accept: 'image/png,image/gif,image/jpeg'
# => <input accept="image/png,image/gif,image/jpeg" id="user_pic" name="user_pic" type="file" />
file_field_tag 'file', accept: 'text/html', class: 'upload', value: 'index.html'
# => <input accept="text/html" class="upload" id="file" name="file" type="file" value="index.html" />
form_tag(url_for_options = {}, options = {}, &block) Link
Starts a form tag that points the action to a URL configured with url_for_options
just like ActionController::Base#url_for. The method for the form defaults to POST.
Options
-
:multipart
- If set to true, the enctype is set to “multipart/form-data”. -
:method
- The method to use when submitting the form, usually either “get” or “post”. If “patch”, “put”, “delete”, or another verb is used, a hidden input with name_method
is added to simulate the verb over post. -
:authenticity_token
- Authenticity token to use in the form. Use only if you need to pass custom authenticity token string, or to not add authenticity_token field at all (by passingfalse
). Remote forms may omit the embedded authenticity token by settingconfig.action_view.embed_authenticity_token_in_remote_forms = false
. This is helpful when you’re fragment-caching the form. Remote forms get the authenticity token from themeta
tag, so embedding is unnecessary unless you support browsers without JavaScript. -
:remote
- If set to true, will allow the Unobtrusive JavaScript drivers to control the submit behavior. By default this behavior is an ajax submit. -
:enforce_utf8
- If set to false, a hidden input with name utf8 is not output. -
Any other key creates standard HTML attributes for the tag.
Examples
form_tag('/posts')
# => <form action="/posts" method="post">
form_tag('/posts/1', method: :put)
# => <form action="/posts/1" method="post"> ... <input name="_method" type="hidden" value="put" /> ...
form_tag('/upload', multipart: true)
# => <form action="/upload" method="post" enctype="multipart/form-data">
<%= form_tag('/posts') do -%>
<div><%= submit_tag 'Save' %></div>
<% end -%>
# => <form action="/posts" method="post"><div><input type="submit" name="commit" value="Save" /></div></form>
<%= form_tag('/posts', remote: true) %>
# => <form action="/posts" method="post" data-remote="true">
form_tag(false, method: :get)
# => <form method="get">
form_tag('http://far.away.com/form', authenticity_token: false)
# form without authenticity token
form_tag('http://far.away.com/form', authenticity_token: "cf50faa3fe97702ca1ae")
# form with custom authenticity token
# File actionview/lib/action_view/helpers/form_tag_helper.rb, line 78 def form_tag(url_for_options = {}, options = {}, &block) html_options = html_options_for_form(url_for_options, options) if block_given? form_tag_with_body(html_options, capture(&block)) else form_tag_html(html_options) end end
hidden_field_tag(name, value = nil, options = {}) Link
Creates a hidden form input field used to transmit data that would be lost due to HTTP’s statelessness or data that should be hidden from the user.
Options
-
Creates standard HTML attributes for the tag.
Examples
hidden_field_tag 'tags_list'
# => <input type="hidden" name="tags_list" id="tags_list" autocomplete="off" />
hidden_field_tag 'token', 'VUBJKB23UIVI1UU1VOBVI@'
# => <input type="hidden" name="token" id="token" value="VUBJKB23UIVI1UU1VOBVI@" autocomplete="off" />
hidden_field_tag 'collected_input', '', onchange: "alert('Input collected!')"
# => <input type="hidden" name="collected_input" id="collected_input"
value="" onchange="alert('Input collected!')" autocomplete="off" />
Source: on GitHub
|image_submit_tag(source, options = {}) Link
Displays an image which when clicked will submit the form.
source
is passed to AssetTagHelper#path_to_image
Options
-
:data
- This option can be used to add custom data attributes. -
:disabled
- If set to true, the user will not be able to use this input. -
Any other key creates standard HTML options for the tag.
Data attributes
-
confirm: 'question?'
- This will add a JavaScript confirm prompt with the question specified. If the user accepts, the form is processed normally, otherwise no action is taken.
Examples
image_submit_tag("login.png")
# => <input src="/assets/login.png" type="image" />
image_submit_tag("purchase.png", disabled: true)
# => <input disabled="disabled" src="/assets/purchase.png" type="image" />
image_submit_tag("search.png", class: 'search_button', alt: 'Find')
# => <input class="search_button" src="/assets/search.png" type="image" />
image_submit_tag("agree.png", disabled: true, class: "agree_disagree_button")
# => <input class="agree_disagree_button" disabled="disabled" src="/assets/agree.png" type="image" />
image_submit_tag("save.png", data: { confirm: "Are you sure?" })
# => <input src="/assets/save.png" data-confirm="Are you sure?" type="image" />
# File actionview/lib/action_view/helpers/form_tag_helper.rb, line 612 def image_submit_tag(source, options = {}) options = options.stringify_keys src = path_to_image(source, skip_pipeline: options.delete("skip_pipeline")) tag :input, { "type" => "image", "src" => src }.update(options) end
label_tag(name = nil, content_or_options = nil, options = nil, &block) Link
Creates a label element. Accepts a block.
Options
-
Creates standard HTML attributes for the tag.
Examples
label_tag 'name'
# => <label for="name">Name</label>
label_tag 'name', 'Your name'
# => <label for="name">Your name</label>
label_tag 'name', nil, class: 'small_label'
# => <label for="name" class="small_label">Name</label>
# File actionview/lib/action_view/helpers/form_tag_helper.rb, line 281 def label_tag(name = nil, content_or_options = nil, options = nil, &block) if block_given? && content_or_options.is_a?(Hash) options = content_or_options = content_or_options.stringify_keys else options ||= {} options = options.stringify_keys end options["for"] = sanitize_to_id(name) unless name.blank? || options.has_key?("for") content_tag :label, content_or_options || name.to_s.humanize, options, &block end
month_field_tag(name, value = nil, options = {}) Link
Creates a text field of type “month”.
Options
Supports the same options as text_field_tag
. Additionally, supports:
-
:min
- The minimum acceptable value. -
:max
- The maximum acceptable value. -
:step
- The acceptable value granularity.
Examples
month_field_tag 'name'
# => <input id="name" name="name" type="month" />
month_field_tag 'month', '2014-01'
# => <input id="month" name="month" type="month" value="2014-01" />
month_field_tag 'month', nil, class: 'special_input'
# => <input class="special_input" id="month" name="month" type="month" />
month_field_tag 'month', '2014-01', class: 'special_input', disabled: true
# => <input disabled="disabled" class="special_input" id="month" name="month" type="month" value="2014-01" />
number_field_tag(name, value = nil, options = {}) Link
Creates a number field.
Options
Supports the same options as text_field_tag
. Additionally, supports:
-
:min
- The minimum acceptable value. -
:max
- The maximum acceptable value. -
:in
- A range specifying the:min
and:max
values. -
:within
- Same as:in
. -
:step
- The acceptable value granularity.
Examples
number_field_tag 'quantity'
# => <input id="quantity" name="quantity" type="number" />
number_field_tag 'quantity', '1'
# => <input id="quantity" name="quantity" type="number" value="1" />
number_field_tag 'quantity', nil, class: 'special_input'
# => <input class="special_input" id="quantity" name="quantity" type="number" />
number_field_tag 'quantity', nil, min: 1
# => <input id="quantity" name="quantity" min="1" type="number" />
number_field_tag 'quantity', nil, max: 9
# => <input id="quantity" name="quantity" max="9" type="number" />
number_field_tag 'quantity', nil, in: 1...10
# => <input id="quantity" name="quantity" min="1" max="9" type="number" />
number_field_tag 'quantity', nil, within: 1...10
# => <input id="quantity" name="quantity" min="1" max="9" type="number" />
number_field_tag 'quantity', nil, min: 1, max: 10
# => <input id="quantity" name="quantity" min="1" max="10" type="number" />
number_field_tag 'quantity', nil, min: 1, max: 10, step: 2
# => <input id="quantity" name="quantity" min="1" max="10" step="2" type="number" />
number_field_tag 'quantity', '1', class: 'special_input', disabled: true
# => <input disabled="disabled" class="special_input" id="quantity" name="quantity" type="number" value="1" />
# File actionview/lib/action_view/helpers/form_tag_helper.rb, line 945 def number_field_tag(name, value = nil, options = {}) options = options.stringify_keys options["type"] ||= "number" if range = options.delete("in") || options.delete("within") options.update("min" => range.min, "max" => range.max) end text_field_tag(name, value, options) end
password_field_tag(name = "password", value = nil, options = {}) Link
Creates a password field, a masked text field that will hide the users input behind a mask character.
Options
-
:disabled
- If set to true, the user will not be able to use this input. -
:size
- The number of visible characters that will fit in the input. -
:maxlength
- The maximum number of characters that the browser will allow the user to enter. -
Any other key creates standard HTML attributes for the tag.
Examples
password_field_tag 'pass'
# => <input id="pass" name="pass" type="password" />
password_field_tag 'secret', 'Your secret here'
# => <input id="secret" name="secret" type="password" value="Your secret here" />
password_field_tag 'masked', nil, class: 'masked_input_field'
# => <input class="masked_input_field" id="masked" name="masked" type="password" />
password_field_tag 'token', '', size: 15
# => <input id="token" name="token" size="15" type="password" value="" />
password_field_tag 'key', nil, maxlength: 16
# => <input id="key" maxlength="16" name="key" type="password" />
password_field_tag 'confirm_pass', nil, disabled: true
# => <input disabled="disabled" id="confirm_pass" name="confirm_pass" type="password" />
password_field_tag 'pin', '1234', maxlength: 4, size: 6, class: "pin_input"
# => <input class="pin_input" id="pin" maxlength="4" name="pin" size="6" type="password" value="1234" />
radio_button_tag(name, value, options = {})
radio_button_tag(name, value, checked, options = {})
Link
Creates a radio button; use groups of radio buttons named the same to allow users to select from a group of options.
Options
-
:checked
- If set to true, the radio button will be selected by default. -
:disabled
- If set to true, the user will not be able to use this input. -
Any other key creates standard HTML options for the tag.
Examples
radio_button_tag 'favorite_color', 'maroon'
# => <input id="favorite_color_maroon" name="favorite_color" type="radio" value="maroon" />
radio_button_tag 'receive_updates', 'no', true
# => <input checked="checked" id="receive_updates_no" name="receive_updates" type="radio" value="no" />
radio_button_tag 'time_slot', "3:00 p.m.", false, disabled: true
# => <input disabled="disabled" id="time_slot_3:00_p.m." name="time_slot" type="radio" value="3:00 p.m." />
radio_button_tag 'color', "green", true, class: "color_input"
# => <input checked="checked" class="color_input" id="color_green" name="color" type="radio" value="green" />
range_field_tag(name, value = nil, options = {}) Link
Creates a range form element.
Options
Supports the same options as number_field_tag
.
Examples
range_field_tag 'quantity', '1'
# => <input id="quantity" name="quantity" type="range" value="1" />
range_field_tag 'quantity', in: 1...10
# => <input id="quantity" name="quantity" min="1" max="9" type="range" />
range_field_tag 'quantity', min: 1, max: 10, step: 2
# => <input id="quantity" name="quantity" min="1" max="10" step="2" type="range"
search_field_tag(name, value = nil, options = {}) Link
Creates a text field of type “search”.
Options
Supports the same options as text_field_tag
.
Examples
search_field_tag 'name'
# => <input id="name" name="name" type="search" />
search_field_tag 'search', 'Enter your search query here'
# => <input id="search" name="search" type="search" value="Enter your search query here" />
search_field_tag 'search', nil, class: 'special_input'
# => <input class="special_input" id="search" name="search" type="search" />
search_field_tag 'search', 'Enter your search query here', class: 'special_input', disabled: true
# => <input disabled="disabled" class="special_input" id="search" name="search" type="search" value="Enter your search query here" />
select_tag(name, option_tags = nil, options = {}) Link
Creates a dropdown selection box, or if the :multiple
option is set to true, a multiple choice selection box.
Helpers::FormOptions can be used to create common select boxes such as countries, time zones, or associated records. option_tags
is a string containing the option tags for the select box.
Options
-
:multiple
- If set to true, the selection will allow multiple choices. -
:disabled
- If set to true, the user will not be able to use this input. -
:include_blank
- If set to true, an empty option will be created. If set to a string, the string will be used as the option’s content and the value will be empty. -
:prompt
- Create a prompt option with blank value and the text asking user to select something. -
Any other key creates standard HTML attributes for the tag.
Examples
select_tag "people", options_from_collection_for_select(@people, "id", "name")
# <select id="people" name="people"><option value="1">David</option></select>
select_tag "people", options_from_collection_for_select(@people, "id", "name", "1")
# <select id="people" name="people"><option value="1" selected="selected">David</option></select>
select_tag "people", raw("<option>David</option>")
# => <select id="people" name="people"><option>David</option></select>
select_tag "count", raw("<option>1</option><option>2</option><option>3</option><option>4</option>")
# => <select id="count" name="count"><option>1</option><option>2</option>
# <option>3</option><option>4</option></select>
select_tag "colors", raw("<option>Red</option><option>Green</option><option>Blue</option>"), multiple: true
# => <select id="colors" multiple="multiple" name="colors[]"><option>Red</option>
# <option>Green</option><option>Blue</option></select>
select_tag "locations", raw("<option>Home</option><option selected='selected'>Work</option><option>Out</option>")
# => <select id="locations" name="locations"><option>Home</option><option selected='selected'>Work</option>
# <option>Out</option></select>
select_tag "access", raw("<option>Read</option><option>Write</option>"), multiple: true, class: 'form_input', id: 'unique_id'
# => <select class="form_input" id="unique_id" multiple="multiple" name="access[]"><option>Read</option>
# <option>Write</option></select>
select_tag "people", options_from_collection_for_select(@people, "id", "name"), include_blank: true
# => <select id="people" name="people"><option value="" label=" "></option><option value="1">David</option></select>
select_tag "people", options_from_collection_for_select(@people, "id", "name"), include_blank: "All"
# => <select id="people" name="people"><option value="">All</option><option value="1">David</option></select>
select_tag "people", options_from_collection_for_select(@people, "id", "name"), prompt: "Select something"
# => <select id="people" name="people"><option value="">Select something</option><option value="1">David</option></select>
select_tag "destination", raw("<option>NYC</option><option>Paris</option><option>Rome</option>"), disabled: true
# => <select disabled="disabled" id="destination" name="destination"><option>NYC</option>
# <option>Paris</option><option>Rome</option></select>
select_tag "credit_card", options_for_select([ "VISA", "MasterCard" ], "MasterCard")
# => <select id="credit_card" name="credit_card"><option>VISA</option>
# <option selected="selected">MasterCard</option></select>
# File actionview/lib/action_view/helpers/form_tag_helper.rb, line 201 def select_tag(name, option_tags = nil, options = {}) option_tags ||= "" html_name = (options[:multiple] == true && !name.end_with?("[]")) ? "#{name}[]" : name if options.include?(:include_blank) include_blank = options[:include_blank] options = options.except(:include_blank) options_for_blank_options_tag = { value: "" } if include_blank == true include_blank = "" options_for_blank_options_tag[:label] = " " end if include_blank option_tags = content_tag("option", include_blank, options_for_blank_options_tag).safe_concat(option_tags) end end if prompt = options.delete(:prompt) option_tags = content_tag("option", prompt, value: "").safe_concat(option_tags) end content_tag "select", option_tags, { "name" => html_name, "id" => sanitize_to_id(name) }.update(options.stringify_keys) end
submit_tag(value = "Save changes", options = {}) Link
Creates a submit button with the text value
as the caption.
Options
-
:data
- This option can be used to add custom data attributes. -
:disabled
- If true, the user will not be able to use this input. -
Any other key creates standard HTML options for the tag.
Examples
submit_tag
# => <input name="commit" data-disable-with="Save changes" type="submit" value="Save changes" />
submit_tag "Edit this article"
# => <input name="commit" data-disable-with="Edit this article" type="submit" value="Edit this article" />
submit_tag "Save edits", disabled: true
# => <input disabled="disabled" name="commit" data-disable-with="Save edits" type="submit" value="Save edits" />
submit_tag nil, class: "form_submit"
# => <input class="form_submit" name="commit" type="submit" />
submit_tag "Edit", class: "edit_button"
# => <input class="edit_button" data-disable-with="Edit" name="commit" type="submit" value="Edit" />
# File actionview/lib/action_view/helpers/form_tag_helper.rb, line 525 def submit_tag(value = "Save changes", options = {}) options = options.deep_stringify_keys tag_options = { "type" => "submit", "name" => "commit", "value" => value }.update(options) set_default_disable_with value, tag_options tag :input, tag_options end
telephone_field_tag(name, value = nil, options = {}) Link
Creates a text field of type “tel”.
Options
Supports the same options as text_field_tag
.
Examples
telephone_field_tag 'name'
# => <input id="name" name="name" type="tel" />
telephone_field_tag 'tel', '0123456789'
# => <input id="tel" name="tel" type="tel" value="0123456789" />
telephone_field_tag 'tel', nil, class: 'special_input'
# => <input class="special_input" id="tel" name="tel" type="tel" />
telephone_field_tag 'tel', '0123456789', class: 'special_input', disabled: true
# => <input disabled="disabled" class="special_input" id="tel" name="tel" type="tel" value="0123456789" />
text_area_tag(name, content = nil, options = {}) Link
Creates a text input area; use a textarea for longer text inputs such as blog posts or descriptions.
Options
-
:size
- A string specifying the dimensions (columns by rows) of the textarea (e.g., “25x10”). -
:rows
- Specify the number of rows in the textarea -
:cols
- Specify the number of columns in the textarea -
:disabled
- If set to true, the user will not be able to use this input. -
:escape
- By default, the contents of the text input are HTML escaped. If you need unescaped contents, set this to false. -
Any other key creates standard HTML attributes for the tag.
Examples
text_area_tag 'post'
# => <textarea id="post" name="post"></textarea>
text_area_tag 'bio', @user.bio
# => <textarea id="bio" name="bio">This is my biography.</textarea>
text_area_tag 'body', nil, rows: 10, cols: 25
# => <textarea cols="25" id="body" name="body" rows="10"></textarea>
text_area_tag 'body', nil, size: "25x10"
# => <textarea name="body" id="body" cols="25" rows="10"></textarea>
text_area_tag 'description', "Description goes here.", disabled: true
# => <textarea disabled="disabled" id="description" name="description">Description goes here.</textarea>
text_area_tag 'comment', nil, class: 'comment_input'
# => <textarea class="comment_input" id="comment" name="comment"></textarea>
# File actionview/lib/action_view/helpers/form_tag_helper.rb, line 413 def text_area_tag(name, content = nil, options = {}) options = options.stringify_keys if size = options.delete("size") options["cols"], options["rows"] = size.split("x") if size.respond_to?(:split) end escape = options.delete("escape") { true } content = ERB::Util.html_escape(content) if escape content_tag :textarea, content.to_s.html_safe, { "name" => name, "id" => sanitize_to_id(name) }.update(options) end
text_field_tag(name, value = nil, options = {}) Link
Creates a standard text field; use these text fields to input smaller chunks of text like a username or a search query.
Options
-
:disabled
- If set to true, the user will not be able to use this input. -
:size
- The number of visible characters that will fit in the input. -
:maxlength
- The maximum number of characters that the browser will allow the user to enter. -
:placeholder
- The text contained in the field by default which is removed when the field receives focus. If set to true, use the translation found in the current I18n locale (through helpers.placeholder.<modelname>.<attribute>). -
Any other key creates standard HTML attributes for the tag.
Examples
text_field_tag 'name'
# => <input id="name" name="name" type="text" />
text_field_tag 'query', 'Enter your search query here'
# => <input id="query" name="query" type="text" value="Enter your search query here" />
text_field_tag 'search', nil, placeholder: 'Enter search term...'
# => <input id="search" name="search" placeholder="Enter search term..." type="text" />
text_field_tag 'request', nil, class: 'special_input'
# => <input class="special_input" id="request" name="request" type="text" />
text_field_tag 'address', '', size: 75
# => <input id="address" name="address" size="75" type="text" value="" />
text_field_tag 'zip', nil, maxlength: 5
# => <input id="zip" maxlength="5" name="zip" type="text" />
text_field_tag 'payment_amount', '$0.00', disabled: true
# => <input disabled="disabled" id="payment_amount" name="payment_amount" type="text" value="$0.00" />
text_field_tag 'ip', '0.0.0.0', maxlength: 15, size: 20, class: "ip-input"
# => <input class="ip-input" id="ip" maxlength="15" name="ip" size="20" type="text" value="0.0.0.0" />
time_field_tag(name, value = nil, options = {}) Link
Creates a text field of type “time”.
Options
Supports the same options as text_field_tag
. Additionally, supports:
-
:min
- The minimum acceptable value. -
:max
- The maximum acceptable value. -
:step
- The acceptable value granularity. -
:include_seconds
- Include seconds and ms in the output timestamp format (true by default).
Examples
time_field_tag 'name'
# => <input id="name" name="name" type="time" />
time_field_tag 'time', '01:01'
# => <input id="time" name="time" type="time" value="01:01" />
time_field_tag 'time', nil, class: 'special_input'
# => <input class="special_input" id="time" name="time" type="time" />
time_field_tag 'time', '01:01', include_seconds: true
# => <input id="time" name="time" type="time" value="01:01:00.000" />
time_field_tag 'time', '01:01', min: '00:00', max: '23:59', step: 1
# => <input id="time" max="23:59" min="00:00" name="time" step="1" type="time" value="01:01" />
url_field_tag(name, value = nil, options = {}) Link
Creates a text field of type “url”.
Options
Supports the same options as text_field_tag
.
Examples
url_field_tag 'name'
# => <input id="name" name="name" type="url" />
url_field_tag 'url', 'http://rubyonrails.org'
# => <input id="url" name="url" type="url" value="http://rubyonrails.org" />
url_field_tag 'url', nil, class: 'special_input'
# => <input class="special_input" id="url" name="url" type="url" />
url_field_tag 'url', 'http://rubyonrails.org', class: 'special_input', disabled: true
# => <input disabled="disabled" class="special_input" id="url" name="url" type="url" value="http://rubyonrails.org" />
utf8_enforcer_tag() Link
Creates the hidden UTF-8 enforcer tag. Override this method in a helper to customize the tag.
# File actionview/lib/action_view/helpers/form_tag_helper.rb, line 976 def utf8_enforcer_tag # Use raw HTML to ensure the value is written as an HTML entity; it # needs to be the right character regardless of which encoding the # browser infers. '<input name="utf8" type="hidden" value="✓" autocomplete="off" />'.html_safe end
week_field_tag(name, value = nil, options = {}) Link
Creates a text field of type “week”.
Options
Supports the same options as text_field_tag
. Additionally, supports:
-
:min
- The minimum acceptable value. -
:max
- The maximum acceptable value. -
:step
- The acceptable value granularity.
Examples
week_field_tag 'name'
# => <input id="name" name="name" type="week" />
week_field_tag 'week', '2014-W01'
# => <input id="week" name="week" type="week" value="2014-W01" />
week_field_tag 'week', nil, class: 'special_input'
# => <input class="special_input" id="week" name="week" type="week" />
week_field_tag 'week', '2014-W01', class: 'special_input', disabled: true
# => <input disabled="disabled" class="special_input" id="week" name="week" type="week" value="2014-W01" />