Ok, my idiotic mistake, thank you. I am persisting the tags now using
this code:
def after_save
tag!
super
end
def tags= tags
@tag_names = tags.split(',').map{ |name| name.strip.titleize }
end
def tag!
return unless tag_names
existing_tags = Tag.where(:name => tag_names).all
tags_to_create = tag_names - existing_tags.map(&:name)
Tag.multi_insert tags_to_create.map{ |name| {:name => name} }
remove_all_tags
DB[:causes_tags].multi_insert tag_names.map{ |name| {:tag_name
=> name, :cause_id => id} }
rescue Sequel::DatabaseError => e
tag!
end
On Jan 12, 8:00 pm, Jeremy Evans <[email protected]> wrote:
> On Jan 12, 5:45 pm, Macario Ortega <[email protected]> wrote:
>
> > Hi, I wan't to do something with a model after it has been saved, i.e.
> > associate it with a list of tags after the model is saved but by then
> > I loose my instance variables, this is the only non obvious for me
> > behavior I found so far with sequel, I would not expect this to
> > happen.
>
> > class Cause < Sequel::Model
> > many_to_many :tags, :right_key => :tag_name
>
> > def tags= tags
> > @tag_names = tags.split(',').map(&:strip)
> > end
>
> > def after_update
> > @tag_names # => nil
> > super
> > end
> > end
>
> Are you calling tags= on the same model instance before calling save/
> update? If not, that's probably the issue. Also, you don't appear to
> be persisting the tags, which raises a red flag to me.
>
> Jeremy
>
> > So the way for associating on creation would be outside the model?
>
> > Thanks
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