similar to: nil can't be coerced into BigDecimal Options

Thanks in advance I want to know how to solve No method errors Agile Rails 4th ed Great book But second time I get this type of error I would like to know how to troubleshoot and resolve Please see below thanks once again NoMethodError in Store#index Showing C:/rails/shop9/app/views/line_items/_line_item.html.erb where line #9 raised: undefined method `title'' for nil:NilClass

I''ve got a few problems with this...Hopefully it''s cleaer what I''m trying to do (work out and display two prices, one discounted / one full). Be grateful for answers... The total price and discounted price are not calculated correctly and the duration is not coming through to the output page. --------------- class Course < ActiveRecord::Base has_one :enquiry

I''m doing the depot example in the Agle Web development book. I''m getting this error: "undefined method `product'' for #<BigDecimal:331ce70,''0.21E1'',8(8)> " "Extracted source (around line #9): 8: for item in @items 9: product = item.product 10: -%> 11: <tr> 12: <td><%= item.product%></td>"

I have looked at examples for this. I found a similar example in the Agile Web Dev... book but that didn''t help. Here''s what i am trying to do. A Cart has many line items. On the Display Cart page, I want to provide the user the option to update quantities. Here''s the rhtml code: <%= start_form_tag :action => ''update_cart'' %>

I''m using Attachment_Fu to save several thumbnails of a photo (resizing with ImageMagick) But when I try to crop them, nothing seems to happen to the file I want to drop and no error messages. I check the file timestamp of the thumbnail I want to crop and it looks updated. What''s strange is that ALL the other thumbnails and the original image''s file timestamps are

In the Agile Rails tutorial I am revisiting building a cart. I have followed the steps given in the book to create the class ''Cart'' thus: class Cart attr_reader :items attr_reader :total_price def add_product(product) @items << LineItem.for_product(product) @total_price += product.price end def initialize @items = [] @total_price = 0.0 end

I am getting an undefined method error in my cart.rb class when trying to find in an array. I cannot see what my error is. Perhaps a view more eyes can help me with this: #--------------------------------------------------------------- 1 class Cart 2 3 attr_reader :items 4 attr_reader :total_price 5 6 def initialize 7 @items = [] 8

hi, i''ve been cracking my head on this one for a while and would be humbly grateful for any pointers i''m working through Agile Web Devopment w Rails and, in the depot example have created the cart class for session handling, but am getting the following error, which suggests the @items variable is not being populated with any data from LineItem NoMethodError (You have a

I was just playing around in irb and noticed that while BigDecimal + Integer => BigDecimal, BigDecimal + Float => Float. Is there any reason for this? It seems inconsistent and means you have to check the class of any number you add to a BigDecimal, which looks very un-Ruby-like to me. Ashley

I''m working on building the shopping cart in the Depot tutorial in the Agile Web Development book. I''m at the part (about page 80) where you build the ability to add items to the cart. I''m able to get to /store/display_cart/ and it seems items are being added, but if I just click on a link to add an item (/store/add_to_cart/2) it gives me this: NoMethodError in

Hi, I have a real simple association setup here that''s just trying to: - Create a new PayjunctionOrder - Create some LineItem objects and assign them to the PayjunctionOrder - Save everything I''m using Rails Edge. ---- class PayjunctionOrder < ActiveRecord::Base has_many :line_items end ------------------ ---- class LineItem < ActiveRecord::Base belongs_to :order,

So, I''m personally cool with this change (patch from #5454, applied in [4596]), and I''ll make it work for Oracle tomorrow. But just wondering if folks considered the performance impact of the change? From a simple test it seems that BigDecimal math is about twice as slow as using Floats.

Hi everybody, I''ve search a lot on google to help me with this one without success. I know that some people had the same problem as I have, but there solutions doesn''t seems to work for me. I''m trying to do the depot example in the AWDwR book. But now I''m stock with a problem that I can''t solve. I get this error: <--- begin error here --->

Is there a method that converts BigDecimal 1520.0 to "one thousand five hundred and twenty"? -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to

I am overriding to_s method of BigDecimal class as below and its working fine. Wanted to confirm is there any other better way to do this ? Thanks! 49 class BigDecimal 50 alias :old_s :to_s 51 def to_s 52 return to_i.to_s if eql? to_i 53 self.old_s 54 end 55 end -- sαη∂ιρ Rαηѕιηg --- blog www.funonrails.com twitter @sandipransing skype sandip.ransing -- You received

I need to do some precise math, going to 12-14 decimal places, so I''m using BigDecimal. How can I store this in a db? I''m using postgresql 8.1.0, if that matters at all. I found a plugin [1] but it gives me the error "You have a nil object when you didn''t expect it! The error occurred while evaluating nil.each_pair," with no line number. The plugin itself

Hi all, Apologies in advance if I got this one wrong, I''m still just a newbie ;-) Going through the Apple ADC RoR tutorial it suddenly occurred to me that the ''number_to_currency()'' helper method was not DRY streamlined. Scenario:: The "number_to_currency()" methods options hash works great when I need to dynamically display different currencies when I

I have a strange problem with my setup of Passenger and Ruby Enterprise Edition. Sometimes the loading of BigDecimals from the database and session fails (silently) and the variable containing the BigDecimal is just empty. I cannot pinpoint where/when/how it happens, and it IS only periodic. I am using the newest versions of both Passenger and REE - I have even tried to run with latest commit

I was wondering if this is possible. I have a model (Item) that contains products. These products have prices that I''d like to format using number_to_currency. Rather than doing this several times inside the view, I thought it might be nice to do it once inside the model. The item table has an field called regular_price which holds a currency amount. I would like to do something

I was hoping 1.1 would provide a way to map SQL "decimal" column types to BigDecimal values, since BigDecimal is part of the Ruby standard api as of 1.8. But I don''t see any support for that in the migration documentation, and when I try to let Active Record do the mapping for me, it seems to coerce the column into a Float (as the AwdwR book says). Is it really there in