Your row_to_update actually is still a relation (which for most purposes
behaves like an Array) rather than a single row. It may contain one or more
items.
If you are sure your array only contains one item, you can do:
row_to_update = History.where("user_id = ? AND question_id = ?",
current_user.id, play_list[0][0]).first
BTW you can also simplify this query:
record = History.where(user_id: current_user, question_id:
play_list[0][0]).first
if record
record.update_attributes(...)
end
Don't need to do .empty? check because record will be nil if not found, and
the if-statement will not evaluate.
.
On Thursday, July 17, 2014 6:37:52 PM UTC-7, Ruby-Forum.com User wrote:
>
> Can anyone help with this (I'm a novice). I am trying to update several
> attributes in the History table from inside another controller (Drill
> controller)
>
> if !(History.where("user_id = ? AND question_id = ?", current_user.id,
> play_list[0][0])).empty?
> row_to_update = History.where("user_id = ? AND question_id = ?",
> current_user.id, play_list[0][0])
> row_to_update.update_attributes(:date_time => Time.now, :correct =>
> params[:answeredCorr)
> else
> ...
>
> I get the error:
> NoMethodError: undefined method `update_attributes' for
> #<ActiveRecord::Relation::ActiveRecord_Relation_History:0x00000109d80f40>
> from
> /Users/dcastellano1/.rvm/gems/ruby-2.1.0/gems/activerecord-4.0.3/lib/active_record/relation/delegation.rb:121:in
>
>
> `method_missing'
>
> Thank,
> Dave Castellano
>
> --
> Posted via http://www.ruby-forum.com/.
>
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