CODEWITHSUNDEEP
ruby-on-railsarrays
Johny Oggy
Johny Oggy

Reputation: 61

How get array item correctly?

I have this request to database

@show = Question.where(:question_status => params[:id])

Then in @show variable I have this: [#<Question id: 38, user_id: 1, question: "hi", question_status: 1, created_at: "2013-06-04 18:32:28", updated_at: "2013-06-04 18:32:28">, #<Question id: 40, user_id: 1, question: "urll", question_status: 1, created_at: "2013-06-04 18:34:57", updated_at: "2013-06-04 18:34:57">, #<Question id: 41, user_id: 1, question: "urll", question_status: 1, created_at: "2013-06-04 18:35:31", updated_at: "2013-06-04 18:35:31">]

How get , for example, question field ? I trying @show.question but have error no defined method question.

Upvotes: 0

Views: 79

Answers (5)

Ganesh Kunwar
Ganesh Kunwar

Reputation: 2653

 @show = Question.find_by_question_status(params[:id]) 
and @show.question

If you us where statement then use:

@show.each do |show|
  show.question
end

Upvotes: 1

Deepika
Deepika

Reputation: 826

Use @show.map(&:question) . This will give you all the questions in array.

@show.question gives you error no defined method question because you are trying to operate question on array @show.

If you do @show.first.question it will give you question of first object.

And

If you do @show.map(&:question) it will give you array of question.

To get all the information.

@show.each do |show|
  puts show.question
  puts show.question_status
  puts show.user_id
end

You can optimize it as per you requirement.

Upvotes: 0

RahulOnRails
RahulOnRails

Reputation: 6542

Try this code at your rails console

@show = Question.where(:question_status => params[:id])
@show.each_with_index do |ques, index|
   p "#{index+1} :: #{ques.question}"
end

With the help of index, you will get the sequence number of rows.

Upvotes: 0

Jyothu
Jyothu

Reputation: 3154

You want to take an array of all question fields?

questions = Question.where(:question_status => params[:id]).map(&:question)

Then you can simply go like

questions.each{|question| puts question }

Upvotes: 0

user1616238
user1616238

Reputation:

@show is an ActiveRecord::Relation object(Array). It does not belong to Question class. 

@show = Question.where(:question_status => params([:id]).first

if you are expecting only one result. Otherwise you have to iterate the array for each element

Upvotes: 0

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