On Monday, 24 August 2015 04:28:12 UTC-4, iampravee...@gmail.com wrote:
>
> Hi friends , I am modifying virtualX open source application. I wanted to
> introduce new functionality that is uploading questions from .csv file and
> storing those questions to the database. I am very new to ruby this task
> becomes very tough for me . So i referred so many websites and blogs and i
> ready some code for this feature . but this is code is not working . I am
> getting HTTP 500 error . As i checked code in Aptanan Studio , it is
> showing some errors.
>
In future, please also post the errors; since this isn't all the code in
your application we can't run it to see what happens, and are relying on
you to tell us.
> I am posting my code over here . Please help me friends . I am really not
> getting what is happening .
>
> I am using Ruby 1.8.7
> Rails 3.0.3
>
>
>
> questions_controller.rb
>
> def import
>
> @question = Question.new
> @question.import(params[:file])
>
You've defined the import method below as a class method (`def
self.import`) but are attempting to call an instance method here on
`@question`.
The two lines above should likely be:
Question.import(params[:file])
> redirect_to root_url, notice: "Questions imported succefully."
> end
>
> questions.rb
>
> def self.import(file)
> CSV.foreach(file.path, headers: true) do |row|
>
> question_hash = row.to_hash
> @question = Question.where(id: question_hash[“id”])
>
>
Double-check your source file: the line you've pasted here has slant-quotes
(“ and ”) which are not the same thing to Ruby as a straight double-quote
("). It's also possible that these were adding while composing the email.
> if @question.count == 1
> @question.first.update_attributes(question_hash)
> else
> Question.save!(question_hash)
>
What is the intent of this line? Are there situations where you can have
multiple `Question` records with the same ID? There is not a class method
called `save!` built into ActiveRecord.
--Matt Jones
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