How get array item correctly?

Question

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.

you want to take array of all question fields of Question table? See my answer. — Jyothu
– Jyothu, Commented Jun 5, 2013 at 6:52

Ganesh Kunwar · Accepted Answer · 2013-06-05 07:41:16Z

1

 @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

edited Jun 5, 2013 at 7:41

answered Jun 5, 2013 at 6:37

Ganesh Kunwar

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1 Comment

Ganesh Kunwar Over a year ago

check again by show = Question.find_by_question_status(params[:id]) and show.question

user1616238 · Accepted Answer · 2013-06-05 06:38:48Z

0

@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

answered Jun 5, 2013 at 6:38

user1616238

3 Comments

Johny Oggy Over a year ago

find method can search only by id or somthing else ?

user1616238 Over a year ago

sorry. thought he was searching for id when he passed id in params. see my edited answer

Johny Oggy Over a year ago

it give me only the last item in array which in question of this post

Jyothu · Accepted Answer · 2013-06-05 06:50:17Z

0

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 }

answered Jun 5, 2013 at 6:50

Jyothu

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2 Comments

Johny Oggy Over a year ago

yes and other information. Can I use map(&:question) like this map(&:question, &status) ?

Jyothu Over a year ago

No you can't use like that. U want to take the status field also..?

RahulOnRails · Accepted Answer · 2013-06-05 06:53:23Z

0

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.

edited Jun 5, 2013 at 6:53

answered Jun 5, 2013 at 6:43

RahulOnRails

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Comments

Deepika · Accepted Answer · 2013-06-05 07:10:24Z

0

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.

edited Jun 5, 2013 at 7:10

answered Jun 5, 2013 at 6:55

Deepika

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3 Comments

Johny Oggy Over a year ago

I want get array information and then get from them all what i want, for example: question and status fields or only question field..

Johny Oggy Over a year ago

yes...it give me any field...but only for ONE item in array. When I searching by params[:id] - it is id of category and in array i get all information from this category. Your solution give me only ONE item.

Johny Oggy Over a year ago

i think i should use each in each

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