Accepts a container (hash, array, enumerable, your type) and returns a
string of option tags. Given a container where the elements respond to
first and last (such as a two-element array), the âlastsâ serve as option
values and the âfirstsâ as option text. Hashes are turned into this form
automatically, so the keys become âfirstsâ and values become lasts. If
selected is specified, the matching âlastâ or element will get
the selected option-tag. selected may also be an array of
values to be selected when using a multiple select.
options_for_select([["Dollar", "$"], ["Kroner", "DKK"]])
# => <option value="$">Dollar</option>
# => <option value="DKK">Kroner</option>
options_for_select([ "VISA", "MasterCard" ], "MasterCard")
# => <option>VISA</option>
# => <option selected="selected">MasterCard</option>
options_for_select({ "Basic" => "$20", "Plus" => "$40" }, "$40")
# => <option value="$20">Basic</option>
# => <option value="$40" selected="selected">Plus</option>
options_for_select([ "VISA", "MasterCard", "Discover" ], ["VISA", "Discover"])
# => <option selected="selected">VISA</option>
# => <option>MasterCard</option>
# => <option selected="selected">Discover</option>
You can optionally provide html attributes as the last element of the array.
options_for_select([ "Denmark", ["USA", {class: 'bold'}], "Sweden" ], ["USA", "Sweden"])
# => <option value="Denmark">Denmark</option>
# => <option value="USA" class="bold" selected="selected">USA</option>
# => <option value="Sweden" selected="selected">Sweden</option>
options_for_select([["Dollar", "$", {class: "bold"}], ["Kroner", "DKK", {onclick: "alert('HI');"}]])
# => <option value="$" class="bold">Dollar</option>
# => <option value="DKK" onclick="alert('HI');">Kroner</option>
If you wish to specify disabled option tags, set selected to
be a hash, with :disabled being either a value or array of
values to be disabled. In this case, you can use :selected to
specify selected option tags.
options_for_select(["Free", "Basic", "Advanced", "Super Platinum"], disabled: "Super Platinum") # => <option value="Free">Free</option> # => <option value="Basic">Basic</option> # => <option value="Advanced">Advanced</option> # => <option value="Super Platinum" disabled="disabled">Super Platinum</option> options_for_select(["Free", "Basic", "Advanced", "Super Platinum"], disabled: ["Advanced", "Super Platinum"]) # => <option value="Free">Free</option> # => <option value="Basic">Basic</option> # => <option value="Advanced" disabled="disabled">Advanced</option> # => <option value="Super Platinum" disabled="disabled">Super Platinum</option> options_for_select(["Free", "Basic", "Advanced", "Super Platinum"], selected: "Free", disabled: "Super Platinum") # => <option value="Free" selected="selected">Free</option> # => <option value="Basic">Basic</option> # => <option value="Advanced">Advanced</option> # => <option value="Super Platinum" disabled="disabled">Super Platinum</option>
NOTE: Only the option tags are returned, you have to wrap this call in a regular HTML select tag.
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