On Dec 12, 2010, at 4:59 PM, Rodrigo Mendonça wrote:
Great!!
when user_id is null (and can be null in some cases)
you can do this
%post.each do |p|%
%=p.user.name unless p.user.nil?%
%end
other way is
%=p.user.name unless p.user.empty?%
Or, you can push that into the model and avoid
Thanks for the replies Rob and Marnen - they are both very helpful to me
as a nube :)
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On 13 December 2010 16:30, Rob Biedenharn r...@agileconsultingllc.com wrote:
Or, you can push that into the model and avoid the extra logic in the view:
class Post
def user_name
self.user ? self.user.name : (none)
end
end
Instead of creating a new method to delegate from the
On Dec 12, 6:38 pm, Ast Jay li...@ruby-forum.com wrote:
In that loop, can I do:
td% post.user %/td
...to give me back the user that made that post?
In the rails console I can do user.posts (that gives me all the posts a
user has made) but I can't do post.user (to give me the user).
As
Hi Fred, thanks for the reply.
In the rails console with 'post.user' I get:
NoMethodError: undefined method `user' for #Post:0x0101455590
And in my view 'post.user.nameI get:
undefined method `name' for nil:NilClass
If I leave off '.name' I get what looks like an object:
It's not normal
try reboot your server
check in DB if user_id is null
try Post.first.user.name
2010/12/12 Ast Jay li...@ruby-forum.com
Hi Fred, thanks for the reply.
In the rails console with 'post.user' I get:
NoMethodError: undefined method `user' for #Post:0x0101455590
And in my
Hi Rodrigo, thanks for the reply.
I've tried that - but still doesn't work :(
I pushed the app to git:
https://github.com/Brook/uf/blob/master/app/views/topics/index.html.erb
And you can see where I'm trying to call it on line 18
Maybe you can spot where I've gone wrong? :/
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Search in app/model for the file User.rb (in singular)
This file exists??
Paste the code of this file here.
2010/12/12 Ast Jay li...@ruby-forum.com
Hi Rodrigo, thanks for the reply.
I've tried that - but still doesn't work :(
I pushed the app to git:
Thank you both for your help - I got it fixed with a little help from
Isaackearse on the Rails IRC channel.
The reason it was playing up was because I had some posts in the db that
weren't associated to any users - once they were deleted everything
works as expected :)
Thanks again to
2010/12/12 Rodrigo Mendonça den...@gmail.com:
Search in app/model for the file User.rb (in singular)
This file exists??
For posterity that should be user.rb not User.rb of course
Colin
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Great!!
when user_id is null (and can be null in some cases)
you can do this
%post.each do |p|%
%=p.user.name unless p.user.nil?%
%end
other way is
%=p.user.name unless p.user.empty?%
2010/12/12 Colin Law clan...@googlemail.com
2010/12/12 Rodrigo Mendonça den...@gmail.com:
Search in
Thanks Rodrigo.
Is that only for db fields that are part of the 'join'/association?
Because I had some other fields that were empty too (but they belonged
to the post model) but they didn't cause any probs.
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No, no, if field is null or empty you can use this.
It's not specifc for join or association
You are learning the ROR, and is better for you use .empty?
It's will cause less errors for you
Sorry for my english.. i'm still learning =D
2010/12/12 Ast Jay li...@ruby-forum.com
Thanks Rodrigo.
Thanks again Rodrigo, and no worries about your English... it is very
good!
If you're on twitter, please feel free to add me :) my username is:
AstonJ
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