Unique indexes

Rails
1

I have a unique index on Channelnote.note.
In my controller, I go to save the Channelnote.
But, if the note portion already exists, it naturally throws an error.
How can I alleviate this, so that it only saves if the note is NOT
already in the table? Thanks, RVince

    cnote = Channelnote.new

cnote.note = params[‘channelnotes’]
cnote.channel_id = @channel.id
cnote.associate_id = current_associate.id
g=cnote.save

2

On Wed, Oct 7, 2009 at 8:15 AM, RVince [email protected] wrote:

   cnote.channel_id = @channel.id
   cnote.associate_id = current_associate.id
   g=cnote.save

begin
cnote.save!
rescue
flash[:notice] = ‘channel note failed to save’
end

or you could check to see if it exists before trying to save it.

cn = Channelnote.find_by_note( params[:channelnotes] )
cnote.save unless cn

–
Greg D.
http://destiney.com/

3

Greg D. wrote:

On Wed, Oct 7, 2009 at 8:15 AM, RVince [email protected] wrote:

� � � �cnote.channel_id = @channel.id
� � � �cnote.associate_id = current_associate.id
� � � �g=cnote.save

begin
cnote.save!
rescue
flash[:notice] = ‘channel note failed to save’
end

or you could check to see if it exists before trying to save it.

cn = Channelnote.find_by_note( params[:channelnotes] )
cnote.save unless cn

Or put a validates_uniqueness_of in the app.

–
Greg D.
http://destiney.com/

Best,

Marnen Laibow-Koser
http://www.marnen.org
[email protected]

4

You could use find_or_create_by_note, too

2009/10/7, Marnen Laibow-Koser [email protected]:

flash[:notice] = ‘channel note failed to save’

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

–
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