form_options

Creates select options from a container (list, tuple, dict)

Accepts a container (list, tuple, dict) 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 "lasts" serve as option values and the "firsts" as option text. Dicts are turned into this form automatically, so the keys become "firsts" and values become lasts. If selected is specified, the matching "last" or element will get the selected option-tag. Selected may also be an array of values to be selected when using a multiple select.

Examples (call, result):

>>> options_for_select([["Dollar", "$"], ["Kroner", "DKK"]])
'<option value="$">Dollar</option>\n<option value="DKK">Kroner</option>'
>>> options_for_select([ "VISA", "MasterCard" ], "MasterCard")
'<option value="VISA">VISA</option>\n<option value="MasterCard" selected="selected">MasterCard</option>'
>>> options_for_select(dict(Basic="$20", Plus="$40"), "$40")
'<option value="$40" selected="selected">Plus</option>\n<option value="$20">Basic</option>'
>>> options_for_select([ "VISA", "MasterCard", "Discover" ], ["VISA", "Discover"])
'<option value="VISA" selected="selected">VISA</option>\n<option value="MasterCard">MasterCard</option>\n<option value="Discover" selected="selected">Discover</option>'

Note: Only the option tags are returned, you have to wrap this call in a regular HTML select tag.

Create select options from objects in a container

Returns a string of option tags that have been compiled by iterating over the container and assigning the the result of a call to the value_attr as the option value and the name_attr as the option text. If selected is specified, the element returning a match on value_attr will get the selected option tag.

NOTE: Only the option tags are returned, you have to wrap this call in a regular HTML select tag.

Create select options from dicts in a container

Returns a string of option tags that have been compiled by iterating over the container and assigning the the result of a call to the value_key as the option value and the name_attr as the option text. If selected is specified, the element returning a match on value_key will get the selected option tag.

NOTE: Only the option tags are returned, you have to wrap this call in a regular HTML select tag.