Rails - Feb 2006 - Newbie question - Automatically update _form.rhtml?

Hi all, I''ve got an odd issue. I''m new to Ruby/Rails and have
a bit of a
silly question. I''m following along with the nice little tutorial here,
to get an idea of the system:

http://www.onlamp.com/pub/a/onlamp/2005/01/20/rails.html?page=3

However, I''m running into an issue where the author adds a new field in
his database, refreshes the browser and shows the updated form with the 
new field.

Okay, maybe I''m missing something, but I can''t, for the life
of me,
figure out how this is done. I''ve actually poked the system enough to 
realise that the _form.rhtml file is controlling this snipped, and that 
it''s not updating when I update my database.

Am I missing something here, or do I have to manually regenerate 
_form.rhtml on database updates?

I''m running the newest Rails/Ruby (downloaded last week) on Lighttpd on
my Gentoo Linux system. Any ideas?

Cheers

-- 
Posted via http://www.ruby-forum.com/.

On 27/02/06, Paul Sweeney <psweeney@8-bitdesign.com>
wrote:
> Am I missing something here, or do I have to manually regenerate
> _form.rhtml on database updates?
You should consider a scaffold-generated files only as an example and
customize them as soon as needed. You may regenerate them when
database changes - but only during learning or in VERY early stage of
development. Later on you have to and should adjust them manually.

--
?ukasz Piestrzeniewicz

?ukasz Piestrzeniewicz wrote:
> On 27/02/06, Paul Sweeney <psweeney@8-bitdesign.com> wrote:
> 
>>Am I missing something here, or do I have to manually regenerate
>>_form.rhtml on database updates?
> 
> 
> You should consider a scaffold-generated files only as an example and
> customize them as soon as needed. You may regenerate them when
> database changes - but only during learning or in VERY early stage of
> development. Later on you have to and should adjust them manually.
?ukasz I think you kind of bounced off the side of Paul''s question...
he''s still learning
and should be fine using scaffold for that.

Paul, I think that tutorial might be out of date now and was written back when
the
scaffolded form introspected the fields in your table on every request. At least
I *think*
it once did that... But if you look at a _form.rhtml now it just has a generated
input
field for each column in your db. I think you need to regenerate it to see
changes.

Someone please correct me if I''m wrong... Curt, you lurking about?

b

> Someone please correct me if I''m wrong... Curt, you lurking about?
Well, I followed Curt''s tutorial last week installing the latest
revisions of everything (Ruby, Rails and friends) and had no problems
whatsoever.  (Just in case anyone''s interested, there is a spanish
translation available here [1])

So my bet would be that there''s something wrong with Paul''s
setup
(Curt''s tutorial uses Windows+WEBrick while he is using
Gentoo+lightty)... but I''m clueless...

Greetings.

[1].
http://www.sobrerailes.com/articles/2006/02/24/tutorial-en-catellano-rolling-with-ruby-on-rails
--
----------------------------------------------------
http://www.sobrerailes.com

Just wondering... did you run script/generate scaffold?  Then the
generated files won''t reflect your changes to the database anyway.


On 2/27/06, Juan Lupi?n <pantulis@gmail.com>
wrote:
> > Someone please correct me if I''m wrong... Curt, you lurking
about?
>
> Well, I followed Curt''s tutorial last week installing the latest
> revisions of everything (Ruby, Rails and friends) and had no problems
> whatsoever.  (Just in case anyone''s interested, there is a spanish
> translation available here [1])
>
> So my bet would be that there''s something wrong with
Paul''s setup
> (Curt''s tutorial uses Windows+WEBrick while he is using
> Gentoo+lightty)... but I''m clueless...
>
> Greetings.
>
> [1].
http://www.sobrerailes.com/articles/2006/02/24/tutorial-en-catellano-rolling-with-ruby-on-rails
> --
> ----------------------------------------------------
> http://www.sobrerailes.com
>

--
----------------------------------------------------
http://hronia.blogalia.com

On 2/27/06, Paul Sweeney <psweeney@8-bitdesign.com>
wrote:
> Hi all, I''ve got an odd issue. I''m new to Ruby/Rails and
have a bit of a
> silly question. I''m following along with the nice little tutorial
here,
> to get an idea of the system:
>
> http://www.onlamp.com/pub/a/onlamp/2005/01/20/rails.html?page=3
>
> However, I''m running into an issue where the author adds a new
field in
> his database, refreshes the browser and shows the updated form with the
> new field.
>
> Okay, maybe I''m missing something, but I can''t, for the
life of me,
> figure out how this is done. I''ve actually poked the system enough
to
> realise that the _form.rhtml file is controlling this snipped, and that
> it''s not updating when I update my database.
>
> Am I missing something here, or do I have to manually regenerate
> _form.rhtml on database updates?
>
> I''m running the newest Rails/Ruby (downloaded last week) on
Lighttpd on
> my Gentoo Linux system. Any ideas?
If you followed the tutorial, then there shouldn''t even be a
_form.rhtml, because the tutorial usues dynamic scaffolding that does
not generate any code (there''s another kind of scaffolding created
with the "script/generate scaffold" command that does create code
filles, but the tutorial does not use this).

You can download the source code for the cookbook app and compare it
with yours to see what''s different:

  http://www.onlamp.com/onlamp/2005/03/03/examples/cookbook_part2_0.13.1.zip

Curt

On 27/02/06, Ben Munat <bent@munat.com> wrote:
> ?ukasz I think you kind of bounced off the side of Paul''s
question... he''s still learning
> and should be fine using scaffold for that.
I strongly disagree. Curt''s tutorial was a very valuable resource. Was
- a year ago. During this year Rails evolved. Now I consider this
material more harmfull than helpfull. It just teaches too many bad
habits. Adding fields to the database through clickety-clik? Using
run-time scaffold instead of generated one?

Right now Apple''s tutorial is a lot better resource:
http://developer.apple.com/tools/rubyonrails.html

--
?ukasz Piestrzeniewicz
http://ragnarson.blogspot.com

Ok. Fair enough. I just didn''t see your answer answering his
question... of course, I
didn''t really help much either. ;-)

Curt, I think ?ukasz is calling you out. :-O

b

?ukasz Piestrzeniewicz wrote:
> On 27/02/06, Ben Munat <bent@munat.com> wrote:
> 
>>?ukasz I think you kind of bounced off the side of Paul''s
question... he''s still learning
>>and should be fine using scaffold for that.
> 
> 
> I strongly disagree. Curt''s tutorial was a very valuable resource.
Was
> - a year ago. During this year Rails evolved. Now I consider this
> material more harmfull than helpfull. It just teaches too many bad
> habits. Adding fields to the database through clickety-clik? Using
> run-time scaffold instead of generated one?
> 
> Right now Apple''s tutorial is a lot better resource:
> http://developer.apple.com/tools/rubyonrails.html
> 
> --
> ?ukasz Piestrzeniewicz
> http://ragnarson.blogspot.com
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails

On 2/28/06, Ben Munat <bent@munat.com> wrote:
> Ok. Fair enough. I just didn''t see your answer answering his
question... of course, I
> didn''t really help much either. ;-)
>
> Curt, I think ?ukasz is calling you out. :-O
I basically agree. A lot has changed in Rails in the last year (boy is
that an understatement). Migrations are the way to go for real
database work, although I see nothing wrong with GUI DB development
for someone who whose testing the waters.

I actually intended it to be an intro for Windows developers because
(at the time) there was already plenty of material available for Linux
& OSX. Because of this I deliberately took a very visual style.

Curt