render json as output in rails controller

Question

I have a method in my rails controller and in the controller I need to render the output as a message in json format.

def createItem
    @item = Item.new(params[:item])

    respond_to do |format|
      if @item.save
        format.json { render json: message: "Item is successfully Created" }
      else
        format.json { render json: @item.errors, status: :unprocessable_entity }
      end
    end
  end

But when I submit the form, the browser is displaying blank. I need to render the json text as above. How do I do it. Please help

Rajesh Omanakuttan · Accepted Answer · 2014-04-16 10:18:35Z

2

You could change,

def createItem
  @item = Item.new(params[:item])

  respond_to do |format|
    if @item.save
      format.json { render json: message: "Item is successfully Created" }
    else
      format.json { render json: @item.errors, status: :unprocessable_entity }
    end
  end
end

To

def createItem
  @item = Item.new(params[:item])

  respond_to do |format|
    if @item.save
      json_string = {'message' => 'Item is successfully Created'}.to_json
      format.json { render :json => {item: @item, json_string}
    else
      format.json { render json: @item.errors, status: :unprocessable_entity }
    end
  end

end

answered Apr 16, 2014 at 10:18

Rajesh Omanakuttan

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Comments

Muntasim · Accepted Answer · 2014-04-16 09:37:28Z

0

If you want to see the JSON request you should have to give the .json at the end of your URL.

Suppose that you dont want to give the url, in your model you should type :

def as_json(options={})
    { :name => self.name }  # NOT including the email field
end

def as_json(options={})
    super(:only => [:name])
end

And then in your controller :

def index 
  @names = render :json => Name.all 
end

Then the JSON code will automatically come to picture without using .json.

edited Apr 16, 2014 at 9:37

Muntasim

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answered Apr 16, 2014 at 9:16

kishoreror

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