Ruby for Rails: underfined method 'name ' for #<Array:0xb6c971cc>

Question

Hi, I want to display the column 'name' after being found from the table mytest.

In the mytest.rb, I defined "attrib_accessor :name";

In the procedure index under directory /controller/mytest_controller.rb,

def index
###[Ignore some code]
@[email protected]_by_id 
### I am able to verify the tuples in @mytesttbl
end 

In the /view/mytest/index.rhtml, I have code like

<div id="mytesttable"> <%= render(:partial =>"mytesttbl", :object => @mytesttbl)%> </div> 

In the /view/mytest/_mytesttbl.html.erb. I have code like

<tr>
 <td><%=mytestbl.name %></td>
<tr>

when I ran the above code, I have error on _mytesttbl.html.erb,

undefined method 'name ' for #<Array:0xb6c971cc>

Please help. Thanks,

Answer 1

mytesttbl is an array. Change view/mytest/index.rhtml to

<% @mytesttbl.each do |obj| %>
  <div id="mytesttable">
   <%= render(:partial =>"mytesttbl", :object => obj)%>
  </div>
<% end %>

Edit: Also, view/mytest/_mytesttbl.html.erb should look like

<tr>
 <td><%= object.name %></td>
<tr>

Answer 2

I'm guessing that's not your actual code since it wouldn't actually work. Your find is returning an array. You either want to loop through the array or, if you know it contains only one object (as in the case where you actually are finding by a unique id), you can just do mytesttbl.first to get the object out of it.

Answer 3

arent you missing an argument for the @user.find_by_id? usually when i want to get the name i do:

controller @user= User.find(params[:id]) to find a user by a specific id.

view <%= @user.name %>

if you want to find all users then

controller @user = User.find(:all)

view <% @user.each do |user| %> <% user.name %> <% end %>

User.find_by_id is redudant because User.find by default finds by id.