cheatsheets/rails-forms.md

title	layout
Rails form helpers	default

Forms

# Model:
form_for @post do |f|

form_for @post,
  url: { method: 'put', action: 'create' },
  html: { class: 'nifty_form' } do |f|

  f.label :first_name
  f.text_field :first_name

  field :multiselect, f, :first_name

Stuff

f.object

Fields

f.check_box :is_admin
f.text_field :title
f.text_area :body,
  size: '60x12'

f.label :post, :title
f.label :post, :title, "Title"
f.label :post, :title, "Title", class: "title"
f.label(:post, :terms) { "Accept terms" }
#=> <label for="post_title">Title</label>

radio_button("post", "category", "rails")
radio_button("post", "category", "java")
#=> <input type="radio" id="post_category_rails" name="post[category]"
#   value="rails" checked="checked" />

Select dropdowns

f.time_zone_select :time_zone
f.date_select :birthday

f.select :city_id, [['Lisbon',1], ['Madrid',2], ...], 4   # (4 = selected)

f.collection_select :city_id, City.all, :id, :name

options_for_select [['Lisbon',1], ['Madrid', 2], ...], 4  # Just makes <option> tags

The rest

f.submit "Create"
f.hidden_field

I18n

helpers.submit.create = "Create a %{model}"
helpers.submit.update = "Confirm changes to %{model}"

helpers.submit.article.create = "Publish article"
helpers.submit.article.update = "Update article"

helpers.label.post.body = "Write your body text here"