search for: unit_price

Hi, I have two objects: Contacts Lists I want to be able to add multiple contacts to multiple lists. I''ve created a linking table and a form that allows me to select the contacts using checkboxes, but I''m having some problems with the controller and model. I receive the following error message when I submit the form: Mysql::Error: Cannot add or update a child row: a

I am using this line on my index.rhtml page to capture the quantity required of a particular item for a basic shopping cart app: <%= text_field ''line_item'', ''quantity'', {:size=>3} %> </td> but my next screen (a cart screen) doesn''t reflect what was entered in that text field when the item is added to the cart. That is,

...'s the rhtml code: <%= start_form_tag :action => ''update_cart'' %> <% for @item in @items %> <%= @item.product.title %> <%= text_field "item[]",''quantity'' %> <%= number_to_currency(@item.unit_price) %> $<%= @item.quantity * @item.unit_price %> <%= link_to ''Remove item'', {:action => ''remove_from_cart'', :id => @item.product} %> <% end %> Total $ <%= @cart.total_price %> <%= submit_tag '...

The Problem: how to do the validation. I have not written it correctly!!! Given two tables: sizes and prices; with a relation: has_many ,belongs_to a Price.unit_price for a given Size.meassure must be marked ''true'' as the standard unit_price for that meassure. There will be many other unit_prices for a given meassure, those must be marked ''false'' table sizes meassure, :string (ie.small, medium, big) Model Size has_many :pr...

Instead of using numeric I created the field "unit_price" as PostgreSQL type money. Now when I try and add a row I get the following. How do I override AR default behaviour to cast numeric post data to money, or am I forced to only support database types that active_record knows about? RuntimeError: ERROR C42804 Mcolumn "unit_price"...

I want to modify and update the items in the Depot - "display_cart". Since the cart is in a session, its a little hard to get at the data. I just want to create a way to change quantities, prices and recalculate. Has someone done this, and could you point me to the right direction. Thanks Chas -- Posted via http://www.ruby-forum.com/.

...t;description" >Description :</label></td><td><%= text_area ''line_item'', ''description'', :cols=>"99", :rows=>"2" %></td></tr> <tr><td><class="depot-form" label for="unit_price" >Price :</label></td><td><%= text_field ''line_item'', ''unit_price'' %></td></tr> <tr><td></td></tr> </table> </div> <%= submit_tag ''Create Additional Item'' %>...

...0: -%> 11: <tr> 12: <td><%= item.product%></td>" this is display_cart.rhtml line_item.rb has: "class LineItem < ActiveRecord::Base belongs_to :product def self.for_product(product) item = self.new item.quantity = 1 item.product = product item.unit_price = product.price end end " cart.rb has: "class Cart attr_reader :items attr_reader :total_price def initialize @items = [] @total_price = 0.0 end def add_product(product) @items << LineItem.for_product(product) @total_price += product.price end end " I...

Hi all, I have a little function called format_price(price) that simply formats the argument as a dollar sign, dollar amount, dot and penny amount. Then, in a .rhtml file, I could do this: <%= format_price(item.unit_price * item.quantity) %> But where do I put the format_price() function definition? The app couldn''t find it in app/controllers/application.rb. Where do I put it so it''s available to all views? Thanks SteveT Steve Litt Author: * Universal Troubleshooting Process courseware...

I went throught the "agile web developemnt with rails" and Now I''m trying to ''enhance'' the code with some extra options. When I go to admin/shipping I want to include some data from the products table in with the order info listed. I can''t seem to get this to work. in my partial form I''m trying to add this: <td

Good evening. I have this following table and I would like to turn it into a matrix in which my rows would be filled with de "Sellers", my columns with my "Articles" and my data would be the mean unitary price used by each seller in each produt. Seller Art. Unit Price 1 v1 p1 9.148352 2 v2 p1 2.858073 3 v3 p1 3.775315 4 v4

Hello, When i test this code <h1>contenu de votre panier</h1> <table> <% for item in @items product = item.product %> <tr> <td><%= item.quantity %></td> <td><%= h(product.title)%></td> <td align="right"><%=item.unit_price %></td> <td align="right"><%=item.unit_price * item.quantity %></td> </tr> <% end %> </table> I saw this message NoMethodError in Store#display_cart Showing app/views/store/display_cart.rhtml where line #5 raised: undefined method `product&...

...duct1.inspect =========================== So I am getting on console following output. ========================== [#<Product:0x3cd61c8 @attributes={"demand"=>nil, "name"=>"Part2", "quantity"=>"4", "id"=>"3", "unit_price"=>"1.000"}>] ========================== But when I am writing "print @product1.name" instead of "print @product1.inspect" in my code for displaying just name on console I m getting following error:- ========================= undefined method `name'...

...t;td rowspan="2" align="center"><input type="text" name="product_name[#{@ product.id}]" size="30" value="<%= @product.product_name %>"></td> <td align="center"><input type="text" name="unit_price[#{@product.id}]" size="5", value="<%= @product.unit_price %>"></td> <td align="center"><input type="text" name="sell_price[#{@product.id}]" size="5"></td> </tr> <tr> <td align="cent...

...s/store_controller.rb:9:in `add_to_cart'' The only method that I can see called in line 13 is #find since product_id is a defined column in line_items: CREATE TABLE line_items ( id bigserial NOT NULL, product_id bigint NOT NULL, quantity numeric(10,2) DEFAULT 0 NOT NULL, unit_price money NOT NULL ) WITHOUT OIDS; with this as line_items.rb in app/models #-------------------------------------------------------------------------- 1 class LineItem < ActiveRecord::Base 2 3 belongs_to :product 4 5 def self.for_product(product) 6 item...

I''d like to be able to comment out a few lines of RHTML code easily. With HTML you can just surround the code in <!-- ... -->, but if you do that with the RHTML, it still gets executed, then the resulting HTML is commented out. Sometimes I''d like to be able to leave the code in but not have it evaluated..usually just for quick tests, but sometimes I want to take the

...roducts a cheaper alternative (takes a awfull lot of time), I would like to concentrate on a top 20 for example. Maybe calculate the pct contribution to the total budget, and take the top 20? Any other ideas for an approach? Here an example dataframe: dat <- data.frame(item=1:160, unit_price=round(c(runif(80,0,100), runif(80,250,1000)),2), count=round(c(runif(40, 1,10), runif(40,20,1000),runif(40, 1,10), runif(40,20,1000)),0), total=0) dat$total = dat$count*dat$unit_price Bart -- View this message in context: http://r.789695.n4.nabble.com/Year-cost-optimisati...

...seen the errata or >have any ideas? I would think that if we''re getting the same results, >surely there''s someone else out there who knows what''s going on. I had similar problems, turns out in the method LineItem#for_product the last line for me was "item.unit_price = product.price", so this was returning the float rather than the "item" object itself. All you need is to add a line "item" which would return the object rather than the float - class LineItem < ActiveRecord::Base belongs_to :product def LineItem.for_product...

...le Qty. </th> <th> Demand Qty. </th> </tr> <% for product in @products %> <tr> <td> <%=hidden_field ''product'',''product_id''+i.to_s, :value=>product.id%> <%=product.name%> </td> <td> <%=product.unit_price%> </td> <td> <%=product.quantity%> </td> <td> <%=text_field("product", "dem_quantity"+i.to_s, "size" => 20)%> </td> </tr> <% i=i+1 %> <% end%> <tr> <%=hidden_field ''product'',...

Here are a few suggestions, wondering what others thought: When you generate a model for a DB table, it would be nice if the model.rb contained the DB schema (kind of like # commented out schema) right in the model file. This would make reference WAY easier and put all of the DB stuff in one easy file. Thanks. also nice, of course, woudl be for rails to try and ''guess'' the