Rails - Dec 2004 - question about post changes for a list of objects once

Hi, 

In the web browser, I have a grid to show a list of object (say a list
of post or appt), the user can edit individual row in the client without
post data back to server (using javascript),
After the change, the user will click a submit key to post changes back
to server and file the change once.

Does rails have some standard way to handle this?

Also for the following code (I copied from the example in active record)
logger.info "\nUsing has_and_belongs_to_many association"
david = Person.find(1)
david.add_companies(thirty_seven_signals, next_angle)

Is anyway to add the companies using company ID instead of using the
company object so I don''t need to call company.FindOne("123")
since I
don''t need other information for the company?
-- Something like David.add_companiesByID("123")

Thanks
chong

It''s not necessarily a _Rails_ standard way to handle this, but
it''s a
simple enough solution---for each field, set up the inputs as
array-style inputs and include the record''s id:

<input type="text"
name="myobjects[<%=obj.id%>][some_field]" />

Then, in the receiving controller, @params[''myobjects''] should
be a
collection of the input values keyed on each id, i.e.:

@params[''myobjects''][1][''some_field'']
@params[''myobjects''][24][''some_other_field'']
etc.

At least, this is the way, I''d expect @params to behave---anybody know
differently?


On Mon, 6 Dec 2004 12:25:25 -0600, ChongQing Xiao
<cqxiao-VSMm719ZX/VmbZtjAW+qKA@public.gmane.org>
wrote:
> Hi,
> 
> In the web browser, I have a grid to show a list of object (say a list
> of post or appt), the user can edit individual row in the client without
> post data back to server (using javascript),
> After the change, the user will click a submit key to post changes back
> to server and file the change once.
> 
> Does rails have some standard way to handle this?
> 
> Also for the following code (I copied from the example in active record)
> logger.info "\nUsing has_and_belongs_to_many association"
> david = Person.find(1)
> david.add_companies(thirty_seven_signals, next_angle)
> 
> Is anyway to add the companies using company ID instead of using the
> company object so I don''t need to call
company.FindOne("123") since I
> don''t need other information for the company?
> -- Something like David.add_companiesByID("123")
> 
> Thanks
> chong
> _______________________________________________
> Rails mailing list
> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
> 

-- 
Regards,
John Wilger

-----------
Alice came to a fork in the road. "Which road do I take?" she asked.
"Where do you want to go?" responded the Cheshire cat.
"I don''t know," Alice answered.
"Then," said the cat, "it doesn''t matter."
- Lewis Carrol, Alice in Wonderland

I see. So in the controller, I just manually get the ID and update each
ID with the data in the fields.

Thanks
chong

-----Original Message-----
From: rails-bounces-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
[mailto:rails-bounces-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org] On
Behalf Of John Wilger
Sent: Monday, December 06, 2004 12:53 PM
To: rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
Subject: Re: [Rails] question about post changes for a list of objects
once

It''s not necessarily a _Rails_ standard way to handle this, but
it''s a
simple enough solution---for each field, set up the inputs as
array-style inputs and include the record''s id:

<input type="text"
name="myobjects[<%=obj.id%>][some_field]" />

Then, in the receiving controller, @params[''myobjects''] should
be a
collection of the input values keyed on each id, i.e.:

@params[''myobjects''][1][''some_field'']
@params[''myobjects''][24][''some_other_field'']
etc.

At least, this is the way, I''d expect @params to behave---anybody know
differently?


On Mon, 6 Dec 2004 12:25:25 -0600, ChongQing Xiao
<cqxiao-VSMm719ZX/VmbZtjAW+qKA@public.gmane.org>
wrote:
> Hi,
> 
> In the web browser, I have a grid to show a list of object (say a list
> of post or appt), the user can edit individual row in the client
without
> post data back to server (using javascript),
> After the change, the user will click a submit key to post changes
back
> to server and file the change once.
> 
> Does rails have some standard way to handle this?
> 
> Also for the following code (I copied from the example in active
record)
> logger.info "\nUsing has_and_belongs_to_many association"
> david = Person.find(1)
> david.add_companies(thirty_seven_signals, next_angle)
> 
> Is anyway to add the companies using company ID instead of using the
> company object so I don''t need to call
company.FindOne("123") since I
> don''t need other information for the company?
> -- Something like David.add_companiesByID("123")
> 
> Thanks
> chong
> _______________________________________________
> Rails mailing list
> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
> 

-- 
Regards,
John Wilger

-----------
Alice came to a fork in the road. "Which road do I take?" she asked.
"Where do you want to go?" responded the Cheshire cat.
"I don''t know," Alice answered.
"Then," said the cat, "it doesn''t matter."
- Lewis Carrol, Alice in Wonderland
_______________________________________________
Rails mailing list
Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
http://lists.rubyonrails.org/mailman/listinfo/rails

> Does rails have some standard way to handle this?
<snip>
> Is anyway to add the companies using company ID instead of using the
> company object so I don''t need to call
company.FindOne("123") since I
> don''t need other information for the company?
> -- Something like David.add_companiesByID("123")
Right now I am pretty sure the answer is "no" at least without some
manual
fudgery mentioned by another poster.  I had this proposal written up but
life sucked me away from rails for a few weeks:

http://actionpack.rubyonrails.org/show/FormBuildingByCollections

Any feedback would be appreciated.  :)

Regards,
-- 
Dave Steinberg
http://www.geekisp.com/