Re: [Rails] Auto generate models on creation of other models in Ruby on Rails

On 10 May 2013 11:36, Carlos Mathiasen <gunmath987@gmail.com> wrote:
> On Fri, May 10, 2013 at 5:09 AM, Colin Law <clanlaw@googlemail.com> wrote:
>>
>> On 9 May 2013 22:41, Jessica Lu <loppilop@gmail.com> wrote:
>> > I have a model called Video that has many statuses. I want to create a
>> > status of each kind and add it to @video.statuses in the def create of
>> > VideosController.
>> >
>> > In VideosController, I have:
>> >
>> > def create
>> > @video = Video.new(params[:video])
>> > Kind.all.each do |f|
>> > @video.statuses.new(:kind =>f, :kind_id=>f.id,:comment =>"",
>> > :time_comp => nil, :completed =>false, :video_id =>@video.id)
>
>
> You don't need ":video_id => @video.id". Replace this line with that:
> @video.statuses.build(:kind =>f, :kind_id=>f.id,:comment =>"", :time_comp =>
> nil, :completed =>false)
> build is an alias to new, you can look here[0]
>
> Then when you call @video.save, all statuses will create too, with
> @video.id.

Carlos is right, my suggestion to use create will not work as the
video has not been saved yet.

Colin

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