[Rails] Re: need help with an awkard error

On Jun 7, 3:37 am, Jeweller <jiangna...@gmail.com> wrote:
> thanks ,Fred.
> I still don't understand,because in the model I use the
> "validates_presense_of :commenter" to make sure the commenter
> won't be nil.
> Here's the file I used to generate sample data.
>
> require 'faker'
> def make_comments
> Micropost.all.each do |micropost|
> User.all(:limit => 2).each do |user|
> micropost.comments.create!(:content =>
> Faker::Lorem.sentence(4), :commenter => user)
> end
> end
> end
>
> Now, every micropost has two comments, and the commenters are the
> first,and the second one in the database.
>
> In your opinon, what may brings to the situation ---" the path to your
> rails app contain some non ASCII characters"

I don't think it's related to the actual problem in your app but I do
think it could be triggering a bug in the backtrace cleaner stuff in
rails, which is obscuring the actual error you get. Should be easy
enough to test this hypothesis

Fred
>
> On 6月7日, 上午2时29分, Frederick Cheung <frederick.che...@gmail.com> wrote:
>
>
>
> > On Jun 6, 4:34 pm, Jeweller <jiangna...@gmail.com> wrote:
>
> > > so I placed this line in the home.html.erb to test
> > > <%= @feed_items.first.comments.first.commenter.name %>
> > > it's worked!
>
> > > I'm very confused. I mean what's the difference between these two
> > > ways? And also the error message, it's very strange. because I've
> > > specified utf-8 encoding in the database.yml
>
> > Well the main difference is that this is only displaying a single
> > name. If for example there is a comment where comment.commenter is nil
> > then calling .name on it would raise an error but your second example
> > would be ok unless the bad comment happens to be the first comment of
> > the first item.
>
> > I think the actual error message you get is something unrelated
> > happening during the process of preparing the error page. Does the
> > path to your rails app contain some non ASCII characters perhaps?
>
> > Fred.

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