Rails - Feb 2008 - Update first table when data is created in the second table

Hi,

I want to know how to  update data in first table when i create data in
second table.

For ex:

1)locations-Fields(id,name,reply_data)-TABLE ONE

2)Events-Fields(id,name)-TABLE TWO


I want to know how to update the reply_data column in the first table
when
data is added to  the Events table.
-- 
Posted via http://www.ruby-forum.com/.

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

this should work with callbacks like after_create or after_save:

http://api.rubyonrails.org/classes/ActiveRecord/Callbacks.html

just define them for table one and do whatever necessary with table two
-- 
Posted via http://www.ruby-forum.com/.

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Thorsten Mueller wrote:
> this should work with callbacks like after_create or after_save:
> 
> http://api.rubyonrails.org/classes/ActiveRecord/Callbacks.html
> 
> just define them for table one and do whatever necessary with table two
Can u show me an example as to how to do it..
-- 
Posted via http://www.ruby-forum.com/.

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

in the model of table two:

after_create :update_reply_data

def update_reply_data
  @record = TableOne.find(...)
  @record.update_attribute(:reply_data, new_value)
end

for:
TableOne.find(...)
must have some useful findcode, of course
and:
new_value should be the new value for reply_data,
whatever that is, can''t see that in your question

if the tables are related in some form, things get
more easy if you define this with belongs_to,
has_many and so on. but again i can''t guess those
details from your question
-- 
Posted via http://www.ruby-forum.com/.

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

On Feb 6, 2008 9:28 PM, Koli Koli
<rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
wrote:
> I want to know how to update the reply_data column in the first table
> when
> data is added to  the Events table.
Add an after_save filter.

http://api.rubyonrails.com/classes/ActiveRecord/Callbacks.html#M001298


-- 
Greg Donald
http://destiney.com/

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---