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bergh
2012 Apr 18
1
has_and_belongs_to_many: Item Already in Collection?
I''m putting together what should be a simple app using content and
tags
using has_and_belongs_to_many for each.
create_table :contents_tags, :id => false do |t|
t.references :content
t.references :tag
end
When a user tries to add a new tag, I''m trying to detect if the
content already has the tag.
So ... I grab the tag like this:
tag =