Re: [Rails] Can't mass-assign protected attributes:

Hi Colin,
   I think u r using rails 3.2.x where mass assignment is protected for saving the record into the db
you need to write this piece of code in model

attr_accessible : field/column name

With Thanks & Regards, Santosh Mohanty Software Developer, Railsfactory(Ruby on Rails Solution)  ☎ 9445808957 www.railsfactory.org

Contact me: santosh@railsfactory.org santosh.railsfactory

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On Fri, Jun 8, 2012 at 12:32 PM, Colin Law <clanlaw@googlemail.com> wrote:

On 7 June 2012 23:08, cyber c. <lists@ruby-forum.com> wrote:
> Hi,
>
> i added a column to my DB using
> rails g migration AddAttrToTablename attr:string
> rake db:migrate
>
> I didnt change the model file. Should i?
>
> Now when i create a new record to the table assigning values to existing
> attrs and newly added attribute i get this error "Can't mass-assign
> protected attributes: attr"
>
> Any1 understand whats happening here?

You probably need to add the new field to the attr_accessible list in
the model.rb file so you can do such things as update_attributes(
params[...])  or new( params[...] )

Colin

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