Hello,
I cannot find the issue and it drives me crazy :(
let's simplify. I have 2 models: saving and purchase_type
a *saving* corresponds to a *purchase_type* e.g. new sourcing or
renegotiation
a saving has exactly one purchase_type and a purchase_type has many
savings.
when I try to display the list of savings and their purchase type
(name, not Id), i get the dreaded "You have a nil object when you
didn't expect it!".
The weirdest thing is that it works for category and subcategory, but
not for purchase type.
Is this a camel casing issue? All the relevant code is below
I'm getting mad, please help :)
Thanks,
P.
Here's the index.rhtml (extracts -- RoR tells me the issue is on the
line with *****):
<% @saving.each do |s|%>
<tr>
<td><%=s.id%></td>
<td><%=s.country.name%></td>
<td><%=s.country_reference%></td>
<td><%=s.supplier%></td>
<td><%=s.buyer%></td>
<td><%=s.category.name%></td>
<td><%=s.subcategory.name%></td>
***** <td><%=s.purchaseType.name %></td>
the controller (saving_controller):
class SavingController < ApplicationController
def index
@category = Category.find(:all).collect {|c| [ c.name, c.id ] }
@subcategory = Subcategory.find(:all).collect {|c| [ c.name,
c.id ] }
@purchaseType = PurchaseType.find(:all).collect {|c| [ c.name,
c.id ] }
sort_order = params[:sort_by]
sort_order ||= 'id' # for default sort
@saving = Saving.search(params[:search], params[:page],
sort_order)
end
end
the saving model (saving - table name = savings):
class Saving < ActiveRecord::Base
validates_presence_of :supplier,
:a_saving,
:a_spend,
:country_id,
:category_id,
:subcategory_id,
:buyer,
:purchaseType_id,
validates_numericality_of :a_saving, :a_spend
belongs_to :category
belongs_to :purchaseType
belongs_to :subcategory
def self.search(search, page, sort_order)
search='%' if search=='' || search=='Type your search term'
paginate :page => page,
:conditions => ['supplier like
?',"%#{search}%"],
:order => sort_order
end
end
the purchase_type model (model name = PurchaseType -table name =
purchase_types):
class PurchaseType < ActiveRecord::Base
validates_presence_of :name
has_many :saving
end
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