CODEWITHSUNDEEP
ruby-on-railsrubyarraysobjectinsert
Afaria
Afaria

Reputation: 393

Adding objects to an array?

I'm trying to insert a object into a array, but instead of insert into array, it prints in the screen the memory addresses.

I have the following code in my controller:

@article = Article.new("test","test1")
@articles <<  @article     #this line causes the prints

And my view have this code:

<%=
    @articles.each do |a|
    a.titulo + " / " + a.texto
    end
%>

Upvotes: 0

Views: 1646

Answers (4)

Brennan
Brennan

Reputation: 5732

This is likely expected behavior. If @articles is indeed an array, this should work. Just check the array after the append and make sure the newly added element is there. If you are doing this from the console, then the printing you are seeing is probably console behavior and not << behavior.

Because of the comment below, I'm changing my answer to reflect the actual problem. You are trying to render the enumerator to the view, and not the articles. Your view should look like:

<% @articles.each |a| %>
  <%= a.titulo + " / " + a.texto %>
<% end %>

Upvotes: 1

Bob Mazanec
Bob Mazanec

Reputation: 1121

Create @articles as an Array before adding to it with <<.

E.g.,

class MyController < ...
  def your_method
    @articles ||= []
    @article = Article.new("test","test1")
    @articles <<  @article
  end

  ...
end

(and/or in a before_ filter and/or...)

Upvotes: 1

Uri Agassi
Uri Agassi

Reputation: 37409

Your problem is with how you render the @articles:

<%= @articles.each do |a| a.titulo + " / " + a.texto end %>

The return value of each is the array itself. You want to render each element within the array, so you should do something like this:

<% @articles.each do |a| %> 
  <%= a.titulo + " / " + a.texto %>
<% end %>

Upvotes: 3

NM Pennypacker
NM Pennypacker

Reputation: 6942

You could force @articles to be an array like this:

@articles ||= []

Then add your @article like you were already doing

Upvotes: 1

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