**Author:**  [@Thufir](https://www.ruby-forum.com/u/Thufir)\
**Post date:** [January 16, 2008, 10:59am UTC](https://www.ruby-forum.com/t/tag-name-in-show-rhtml/126213/1 "2008-01-16T10:59:29Z")
There’s some cut-and-paste involved from previous, sorta working
versions. I’m looking at line #29, and don’t understand it.
What does tag.name mean? The current Tag object? the name field for
that object? Something else?
I’m getting the following error:
NoMethodError in Feeds#show
Showing app/views/feeds/show.rhtml where line #29 raised:
undefined method `name’ for #\“tag
one”, “id”=\>“1”}\>
Extracted source (around line #29):
26: (None)
27: \<% else %\>
28: \<% for tag in @feed.tags %\>
29: \<%= tag.name %\>
30: \<%= link\_to ‘Remove’, { :action =\> ‘remove\_tag’,
31: :id =\> @feed, :which\_tag =\> tag.id },
32: :confirm =\> ‘Are you sure?’, :post =\> true %\>
[http://localhost:3000/feeds/show/1](http://localhost:3000/feeds/show/1)
The code is at:
[http://strawr.googlecode.com/svn/trunk/app/views/feeds/show.rhtml](http://strawr.googlecode.com/svn/trunk/app/views/feeds/show.rhtml)
Thanks,
Thufir
---
**Author:**  [@Thufir](https://www.ruby-forum.com/u/Thufir)\
**Post date:** [January 16, 2008, 11:18am UTC](https://www.ruby-forum.com/t/tag-name-in-show-rhtml/126213/2 "2008-01-16T11:18:49Z")
On 16 Jan 2008, at 09:58, Thufir wrote:
> There’s some cut-and-paste involved from previous, sorta working
> versions. I’m looking at line #29, and don’t understand it.
>
> What does tag.name mean? The current Tag object? the name field for
> that object? Something else?
> Didn’t you write this to begin with 🙂 ?
> tag.name means call the name method on tag, and the line above says
> you’re iterating through the tags of the feed.
Fred
---
**Author:**  [@Thufir](https://www.ruby-forum.com/u/Thufir)\
**Post date:** [January 16, 2008, 11:47am UTC](https://www.ruby-forum.com/t/tag-name-in-show-rhtml/126213/3 "2008-01-16T11:47:50Z")
Hi,
tag object doesn’t have attribute called name and it doesn’t have name
method so you must be getting error you might replace tag.name with
tag.tag
Thufir wrote:
> There’s some cut-and-paste involved from previous, sorta working
> versions. I’m looking at line #29, and don’t understand it.
>
> What does tag.name mean? The current Tag object? the name field for
> that object? Something else?
>
> I’m getting the following error:
>
> NoMethodError in Feeds#show
>
> Showing app/views/feeds/show.rhtml where line #29 raised:
>
> undefined method `name’ for #\“tag
> one”, “id”=\>“1”}\>
>
> Extracted source (around line #29):
>
> 26: (None)
>
> 27: \<% else %\>
> 28: \<% for tag in @feed.tags %\>
> 29: \<%= tag.name %\>
> 30: \<%= link\_to ‘Remove’, { :action =\> ‘remove\_tag’,
> 31: :id =\> @feed, :which\_tag =\> tag.id },
> 32: :confirm =\> ‘Are you sure?’, :post =\> true %\>
>
> [http://localhost:3000/feeds/show/1](http://localhost:3000/feeds/show/1)
>
> The code is at:
>
> [http://strawr.googlecode.com/svn/trunk/app/views/feeds/show.rhtml](http://strawr.googlecode.com/svn/trunk/app/views/feeds/show.rhtml)
>
> Thanks,
>
> Thufir
---
**Author:**  [@Thufir](https://www.ruby-forum.com/u/Thufir)\
**Post date:** [January 16, 2008, 8:16pm UTC](https://www.ruby-forum.com/t/tag-name-in-show-rhtml/126213/4 "2008-01-16T20:16:20Z")
On Wed, 16 Jan 2008 10:17:39 +0000, Frederick C. wrote:
> Didn’t you write this to begin with ? tag.name means call the name
> method on tag, and the line above says you’re iterating through the tags
> of the feed.
>
> Fred
Well, there was copy/paste from a dummies book (which, of course, was
deprecated) combined with the fact that I’ve gone back and forth with
subversion revisions due to mucking up a naming convention…
I wish that I’d simply written the view, but that probably wasn’t the
case ☹
-Thufir
---
**Author:**  [@Thufir](https://www.ruby-forum.com/u/Thufir)\
**Post date:** [January 16, 2008, 8:29pm UTC](https://www.ruby-forum.com/t/tag-name-in-show-rhtml/126213/5 "2008-01-16T20:29:17Z")
On Wed, 16 Jan 2008 11:47:50 +0100, Rita Amritkar wrote:
> tag object doesn’t have attribute called name and it doesn’t have name
> method so you must be getting error you might replace tag.name with
> tag.tag
Yes, this now displays everything correctly, in that I can see which
tags
have been associated with a specific feed. That view for the
has\_many\_through is working.
However, I would like to add CRUD functionality:
thufir@arrakis ~/strawr $
thufir@arrakis ~/strawr $ tail app/controllers/feeds\_controller.rb -n 20
def add\_some\_tags
@feed = Feed.find(params[:id])
@unused\_tags =
Tag.find(:all) - @feed.tags
if @unused\_tags.any?
@tags\_to\_add = @unused\_tags.select { |tag|
(@params[‘tag’+tag.id.to\_s][‘checked’] == ‘1’)}
@tags\_to\_add.each { |tag|
@feed.tags \<\< Tag.find\_or\_create\_by\_tag(params[:which\_tag])}
end
if @tags\_to\_add.any? and @feed.save
flash[:notice] = ‘Tags have been added!’
end
redirect\_to :action =\> ‘show’, :id =\> @feed
end
end
thufir@arrakis ~/strawr $
In the show I need to add a form to call this method?
thanks,
Thufir
---
**Author:**  [@Thufir](https://www.ruby-forum.com/u/Thufir)\
**Post date:** [January 16, 2008, 8:42pm UTC](https://www.ruby-forum.com/t/tag-name-in-show-rhtml/126213/6 "2008-01-16T20:42:49Z")
On Wed, 16 Jan 2008 19:28:12 +0000, Thufir wrote:
> > tag object doesn’t have attribute called name and it doesn’t have name
> > method so you must be getting error you might replace tag.name with
> > tag.tag
>
> Yes, this now displays everything correctly, in that I can see which
> tags have been associated with a specific feed. That view for the
> has\_many\_through is working.
I forgot that I had installed a plug-in. Ok, my show does now display
the “add tag” button (but only if there are tags not associated with
that
feed.) However, clicking on the button results in:
ActiveRecord::HasManyThroughCantAssociateNewRecords in
FeedsController#add\_some\_tags
Cannot associate new records through ‘Feed#memberships’ on ‘#’. Both
records must have an id in order to create the has\_many :through record
associating them.
RAILS\_ROOT: ./script/…/config/…
The feeds/show.rhtml is at
[http://strawr.googlecode.com/svn/trunk/app/views/feeds/show.rhtml](http://strawr.googlecode.com/svn/trunk/app/views/feeds/show.rhtml)
I fixed the naming conventions; the model’s look good; the streamlined
plugin has now given a “remove” CRUD interface, which is nice, and
works.
Is it because I’m using deprecated code in the controller, perhaps?
All data was entered during the migration (from db/migrate/00#\_.rb
and so forth).