undefined method `name' ...........

rubyonrails-talk
1

Hi Community....

I'm new in this game, so this might be a easy question, but I have done my google, without result, so I will try this....

I'm learning ROR, and I'm using Patrick Lens 'Ruby on Rails' book. (This is written for ror 1.x - and I'm using NetBeans 6.1 - ror 2.x - this might be the problem...)

But...

I have made this Controller:

class StoryController < ApplicationController   def index     @current_time = Time.now     @s = Story.find_all_by_name('sitepoint')   end end

and this view:

<h1>Story#index</h1> hej <%= @current_time %> <%= @s.name%> <p>Find me in app/views/story/index.html.erb</p>

And, when browsing my 'story' (http://localhost:3000/story), I get this error: undefined method `name' for [#<Story id: 2, name: "sitepoint", link: "http://sitepoint">]:Array

Now using the Rails console within Netbeans, gives me this

v = Story.find_by_name('sitepoint')

v = Story.find_by_name('sitepoint') => #<Story id: 2, name: "sitepoint", link: "http://sitepoint">

v.name

v.name => "sitepoint"

No problem with 'name' - so what is the difference ? -

Regards Jørn

2

I have made this Controller:

class StoryController < ApplicationController def index    @current_time = Time.now    @s = Story.find_all_by_name('sitepoint') end end

<...>

Now using the Rails console within Netbeans, gives me this

v = Story.find_by_name('sitepoint')

v = Story.find_by_name('sitepoint') => #<Story id: 2, name: "sitepoint", link: "http://sitepoint">

v.name

v.name => "sitepoint"

No problem with 'name' - so what is the difference ? -

Can you spot a difference between   Story.find_all_by_name('sitepoint') and Story.find_by_name('sitepoint') ?

Now think, what you get back from the first query, and what you get back from the second one. Then answer yourself, does Array have an 'name' attribute?

Regards, Rimantas

3

Hi Community....

I'm new in this game, so this might be a easy question, but I have done my google, without result, so I will try this....

I'm learning ROR, and I'm using Patrick Lens 'Ruby on Rails' book. (This is written for ror 1.x - and I'm using NetBeans 6.1 - ror 2.x - this might be the problem...)

But...

I have made this Controller:

class StoryController < ApplicationController def index    @current_time = Time.now    @s = Story.find_all_by_name('sitepoint') end end

and this view:

<h1>Story#index</h1> hej <%= @current_time %> <%= @s.name%> <p>Find me in app/views/story/index.html.erb</p>

And, when browsing my 'story' (http://localhost:3000/story), I get this error: undefined method `name' for [#<Story id: 2, name: "sitepoint", link: "http://sitepoint">]:Array

Now using the Rails console within Netbeans, gives me this

v = Story.find_by_name('sitepoint')

v = Story.find_by_name('sitepoint') => #<Story id: 2, name: "sitepoint", link: "http://sitepoint">

v.name

v.name => "sitepoint"

No problem with 'name' - so what is the difference ? -

In the first example you are using "find_all_by_name". In the second you are using "find_by_name". The first returns an array. The second returns a Story object.

You can see this in the error:

undefined method `name' for [#<Story id: 2, name: "sitepoint", link: "http://sitepoint">]:Array

So you either need to loop in your view over @s. ie...

<% @s.each |story| do %>    <%= story.name %> <% end %>

Or change your controller to match what you are doing in console.

-philip

4

Yes.... hmmm.... that is very clear, and removing the all, solved the problem.... guess it is getting a bit late....

Thank you for you comments... I'm back on track.....

Regards Jørn.