Specifying a Form name using start_/form_tag

#1

Hey all.

I’m trying use the form tag(s) to create a named / id’d form. I.e.,
I need to use JS to access the form via the DOM and submit it -
support for a reusable navigation component which will persist app
state on each jump.

However, from reading the form_tag APIs and searching google, I don’t
see where either :name or :id is an option which can be passed into
the form* tags. And having tried a number of permutations for
specifying the additional parameter based on the conventions for
other tags all result in error.

Any thoughts?

Thanks much,
mx.

Michael Xenakis
Architect
Ã?bermind, Inc.
206.290.3362
removed_email_address@domain.invalid

#2

I struggled with this same problem for a while. The issue, as you say,
is how to specify the DOM id of a form when using the form_tag method.
This is helpful when using things like ‘observe_form’, which requires
the form’s ID.

Try this:

<%= form_tag( {:action=>‘xyz’}, {:id=>‘my_form_id’} ) %>

*** The key is to surround your arguments with parenthesis. ***

I could swear that passing multiple hashes without surrounding parens
works in many other methods, so I’m not sure why it’s a problem here.

I hope this helps anyone who’s struggled with this.

-Ben Ridout

#3

Ruby doesn’t know if it’s a hash or a block - that’s why you need
parentheses. ie:

foo.bar { … }

the intent of the braces is ambiguous (and is most likely a block),
but

foo.bar( { … } )

clearly is taking a hash as an argument.

On Jun 8, 4:34 pm, Bne R. removed_email_address@domain.invalid