Images for depot app posted by Roy Stannard @ Thu, 04 Dec 2008 08:03:30 -0000

Roy Stannard — Thu, 04 Dec 2008 08:03:30 -0000

OK not to worry, found them

Images for depot app posted by Roy Stannard @ Thu, 04 Dec 2008 06:51:22 -0000

Roy Stannard — Thu, 04 Dec 2008 06:51:22 -0000

Hi,

Where are the product images downloaded from?

The Depot Application posted by choonsiong @ Sun, 30 Nov 2008 06:18:15 -0000

choonsiong — Sun, 30 Nov 2008 06:18:15 -0000

I have the same problem as Andreas… any helps appreciate. :-)

Possible bug on find method with :select attribute and aggregate functions... posted by Alfredo Rico Moros @ Sun, 23 Nov 2008 19:06:20 -0000

Alfredo Rico Moros — Sun, 23 Nov 2008 19:06:20 -0000

Apologize, a mistake of copy and paste..

This is the output..

Specification.find(:all, :select => ‘tolerancia, sum(umbral) as total’, :group => ‘tolerancia’)
=> [#<specification tolerancia:>, #<specification tolerancia:>]

Where is my total field??

Possible bug on find method with :select attribute and aggregate functions... posted by Alfredo Rico Moros @ Sun, 23 Nov 2008 19:02:54 -0000

Alfredo Rico Moros — Sun, 23 Nov 2008 19:02:54 -0000

Hi to everyboy.. I need your help in order to know if I get wrong..

I’m using rails 2.2.2 with MySQL 5.0

I have this migration file:

class CreateSpecifications < ActiveRecord::Migration def self.up create_table :specifications do |t| t.string :tolerancia t.integer :umbral

t.timestamps
  end
end

def self.down
  drop_table :specifications
end
end

I put some data by mean of script/console
Specification.create(:umbral => 33, :tolerancia => ‘alta’)
Specification.create(:umbral => 23, :tolerancia => ‘alta’)
Specification.create(:umbral => 12, :tolerancia => ‘baja’)
Specification.create(:umbral => 33, :tolerancia => ‘baja’)

Then when I run the following statement
Specification.find(:all, :select => ‘tolerancia, sum(umbral) as total’, :group => ‘tolerancia’)

I get the following:
[#<specification tolerancia:>, #<specification tolerancia:>]

Where is my total field??? How could I get it???

Besides, whit the following statement:
>> Specification.find(:first, :select => ‘now() as ahora’)
=> #<specification>

Where is my field ‘ahora’?

I have ran this situation on Heroku.com with the same sadly results..

Thanks in advanced by your help…

web development company posted by Alena Smith @ Wed, 19 Nov 2008 07:55:30 -0000

Alena Smith — Wed, 19 Nov 2008 07:55:30 -0000

Here is an opportunity to succeed your wants and needs by visiting the url http://www.tiwebdevelopment.com

Problem with Server posted by Gordon Burkell @ Tue, 18 Nov 2008 19:55:11 -0000

Gordon Burkell — Tue, 18 Nov 2008 19:55:11 -0000

Me Again Never mind figured it out.

I read a little further and found that after ruby script/server if I placed webrick it worked. It was trying to open Mongrel.

Problem with Server posted by Gordon Burkell @ Tue, 18 Nov 2008 19:49:27 -0000

Gordon Burkell — Tue, 18 Nov 2008 19:49:27 -0000

Hey I’m just a beginner so I am sorry if this is a simple question. I am on the first application in the new Rails book (Via PDF) and I ran the ruby script/server command and got this warning

path to log file not valid: log/mongrel.log

How do I fix this problem???? Again I am quite new so any help is great!
THANKS
GB

The Depot Application posted by Andreas Boman @ Thu, 13 Nov 2008 16:13:49 -0000

Andreas Boman — Thu, 13 Nov 2008 16:13:49 -0000

I have v2 of the book; doing depot in rails 1.2.6 and I’m stuck at iteration D3: Highlighting Changes.

The javascript cart update added in D2 works fine. When I add the D3 stuff the cart stops updating until a page reload (and no effect is visible).

As you may notice, I moved on and tried D4, also with no luck (similar error). I have spent a day googling and reading various threads on lists and forums to no avail. If I comment the visual_effect lines out in add_to_cart.rjs the app up to iteration D2 works as expected.
Any help would be very welcome.

These should be the relevant log and code snippets:

log

Processing StoreController#add_to_cart (for 127.0.0.1 at 2008-11-13 10:48:12) [POST]
  Session ID: d9989c77d2d4dbe5a15a970c0e8de41b
  Parameters: {"commit"=>"Add to Cart", "action"=>"add_to_cart", "id"=>"6", "controller"=>"store"}
  Product Columns (0.003199)   SHOW FIELDS FROM products
  Product Load (0.001346)   SELECT * FROM products WHERE (products.`id` = 6) 
Rendering store/add_to_cart
Rendered store/_cart_item (0.00187)
Rendered store/_cart_item (0.00040)
Rendered store/_cart_item (0.00037)
Rendered store/_cart (0.00730)

ActionView::TemplateError (undefined method `[]' for #<Enumerable::Enumerator:0x7f61e8a06008>) on line #5 of app/views/store/add_to_cart.rjs:
2: 
3: #page[:cart].visual_effect :blind_down if @cart.total_items == 1
4: 
5: page[:current_item].visual_effect :highlight

    $HOME/.gem/ruby/1.8/gems/activesupport-1.4.4/lib/active_support/core_ext/string/access.rb:43:in `first'
    $HOME/.gem/ruby/1.8/gems/activesupport-1.4.4/lib/active_support/inflector.rb:144:in `camelize'
    $HOME/.gem/ruby/1.8/gems/activesupport-1.4.4/lib/active_support/core_ext/string/inflections.rb:49:in `camelize'
    $HOME/.gem/ruby/1.8/gems/actionpack-1.13.6/lib/action_view/helpers/prototype_helper.rb:719:in `method_missing'
    $HOME/src/rails/depot/app/views/store/add_to_cart.rjs:5:in `_run_rjs_47app47views47store47add_to_cart46rjs'
    $HOME/.gem/ruby/1.8/gems/actionpack-1.13.6/lib/action_view/helpers/prototype_helper.rb:329:in `instance_exec'
    $HOME/.gem/ruby/1.8/gems/actionpack-1.13.6/lib/action_view/helpers/prototype_helper.rb:329:in `initialize'
    $HOME/.gem/ruby/1.8/gems/actionpack-1.13.6/lib/action_view/helpers/prototype_helper.rb:641:in `new'
    $HOME/.gem/ruby/1.8/gems/actionpack-1.13.6/lib/action_view/helpers/prototype_helper.rb:641:in `update_page'
    $HOME/src/rails/depot/app/views/store/add_to_cart.rjs:0:in `_run_rjs_47app47views47store47add_to_cart46rjs'
    $HOME/.gem/ruby/1.8/gems/actionpack-1.13.6/lib/action_view/base.rb:325:in `send'
    $HOME/.gem/ruby/1.8/gems/actionpack-1.13.6/lib/action_view/base.rb:325:in `compile_and_render_template'
    $HOME/.gem/ruby/1.8/gems/actionpack-1.13.6/lib/action_view/base.rb:301:in `render_template'
    $HOME/.gem/ruby/1.8/gems/actionpack-1.13.6/lib/action_view/base.rb:260:in `render_file'
    $HOME/.gem/ruby/1.8/gems/actionpack-1.13.6/lib/action_controller/base.rb:812:in `render_file'
    $HOME/.gem/ruby/1.8/gems/actionpack-1.13.6/lib/action_controller/base.rb:717:in `render_with_no_layout'
    $HOME/.gem/ruby/1.8/gems/actionpack-1.13.6/lib/action_controller/layout.rb:256:in `render_without_benchmark'
    $HOME/.gem/ruby/1.8/gems/actionpack-1.13.6/lib/action_controller/benchmarking.rb:50:in `render'
    /usr/lib/ruby/1.8/benchmark.rb:293:in `measure'
    $HOME/.gem/ruby/1.8/gems/actionpack-1.13.6/lib/action_controller/benchmarking.rb:50:in `render'
    $HOME/.gem/ruby/1.8/gems/actionpack-1.13.6/lib/action_controller/base.rb:1102:in `perform_action_without_filters'
    $HOME/.gem/ruby/1.8/gems/actionpack-1.13.6/lib/action_controller/filters.rb:696:in `call_filters'
    $HOME/.gem/ruby/1.8/gems/actionpack-1.13.6/lib/action_controller/filters.rb:688:in `perform_action_without_benchmark'
    $HOME/.gem/ruby/1.8/gems/actionpack-1.13.6/lib/action_controller/benchmarking.rb:66:in `perform_action_without_rescue'
    /usr/lib/ruby/1.8/benchmark.rb:293:in `measure'
    $HOME/.gem/ruby/1.8/gems/actionpack-1.13.6/lib/action_controller/benchmarking.rb:66:in `perform_action_without_rescue'
    $HOME/.gem/ruby/1.8/gems/actionpack-1.13.6/lib/action_controller/rescue.rb:83:in `perform_action'
    $HOME/.gem/ruby/1.8/gems/actionpack-1.13.6/lib/action_controller/base.rb:435:in `send'
    $HOME/.gem/ruby/1.8/gems/actionpack-1.13.6/lib/action_controller/base.rb:435:in `process_without_filters'
    $HOME/.gem/ruby/1.8/gems/actionpack-1.13.6/lib/action_controller/filters.rb:684:in `process_without_session_management_support'
    $HOME/.gem/ruby/1.8/gems/actionpack-1.13.6/lib/action_controller/session_management.rb:114:in `process'
    $HOME/.gem/ruby/1.8/gems/actionpack-1.13.6/lib/action_controller/base.rb:334:in `process'
    $HOME/.gem/ruby/1.8/gems/rails-1.2.6/lib/dispatcher.rb:41:in `dispatch'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/rails.rb:76:in `process'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/rails.rb:74:in `synchronize'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/rails.rb:74:in `process'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:159:in `process_client'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:158:in `each'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:158:in `process_client'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `run'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `initialize'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `new'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `run'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `initialize'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `new'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `run'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/configurator.rb:282:in `run'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/configurator.rb:281:in `each'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/configurator.rb:281:in `run'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:128:in `run'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/command.rb:212:in `run'
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:281
    $HOME/.gem/ruby/1.8/gems/activesupport-1.4.4/lib/active_support/dependencies.rb:488:in `load'
    $HOME/.gem/ruby/1.8/gems/activesupport-1.4.4/lib/active_support/dependencies.rb:488:in `load'
    $HOME/.gem/ruby/1.8/gems/activesupport-1.4.4/lib/active_support/dependencies.rb:342:in `new_constants_in'
    $HOME/.gem/ruby/1.8/gems/activesupport-1.4.4/lib/active_support/dependencies.rb:488:in `load'
    $HOME/.gem/ruby/1.8/gems/rails-1.2.6/lib/commands/servers/mongrel.rb:60
    /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require'
    /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'
    $HOME/.gem/ruby/1.8/gems/activesupport-1.4.4/lib/active_support/dependencies.rb:495:in `require'
    $HOME/.gem/ruby/1.8/gems/activesupport-1.4.4/lib/active_support/dependencies.rb:342:in `new_constants_in'
    $HOME/.gem/ruby/1.8/gems/activesupport-1.4.4/lib/active_support/dependencies.rb:495:in `require'
    $HOME/.gem/ruby/1.8/gems/rails-1.2.6/lib/commands/server.rb:39
    /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require'
    /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:27:in `require' 
script/server:3

Rendering $HOME/.gem/ruby/1.8/gems/actionpack-1.13.6/lib/action_controller/templates/rescues/layout.rhtml (500 Internal Error)

cart.rb

  def add_product(product)
    current_item = @items.find {|item| item.product == product}
    if current_item
      current_item.increment_quantity
    else
      current_item = CartItem.new(product)
      @items << current_item
    end
    current_item
  end

store_controller.rb


  def add_to_cart
    begin
      product = Product.find(params[:id])
    rescue ActiveRecord::RecordNotFound
      logger.error("Attempt to access invalid product #{params[:id]}")
      redirect_to_index("Invalid product")
    else
      @cart = find_cart
      @current_item = @cart.add_product(product)
    end
  end

_cart_item.rhtml


<% if cart_item == @current_item %>
  <tr id="current_item">
<% else %>
  <tr>
<% end %>
    <td><%= cart_item.quantity %>&times;</td>
    <td><%=h cart_item.title %></td>
    <td class="item-price"><%= number_to_currency(cart_item.price) %></td>
  </tr>

add_to_cart.rjs


page.replace_html("cart", :partial => "cart", :object => @cart)

#page[:cart].visual_effect :blind_down if @cart.total_items == 1

page[:current_item].visual_effect :highlight

The Depot Application posted by Joe Sak @ Thu, 06 Nov 2008 06:56:44 -0000

Joe Sak — Thu, 06 Nov 2008 06:56:44 -0000

Just found out:

def add_to_cart
      begin
          product = Product.find(params[:id])
      rescue ActiveRecord::RecordNotFound
          logger.error("Attempt to access invalid product #{params[:id]}")
          redirect_to_index("Invalid product")
      else
          @cart = find_cart
            @cart.add_product(product)
            @current_item = @cart.add_product(product)

      end
  end

I had the add_product method running twice. smack forehead

The Depot Application posted by Joe Sak @ Thu, 06 Nov 2008 06:36:08 -0000

Joe Sak — Thu, 06 Nov 2008 06:36:08 -0000

I just got to p 124 in the 2nd Edition.

I got the highlighting of the current item working. Now, for no reason, when I click add to cart, it adds double. It used to increment properly but now it’s incrementing double.

So I click Add to Cart and it says 2x Book Title Price
I click Add to Cart again and it says 4x Book Title Price

Can anyone help me figure out why this is happening?

The Depot Application posted by Hayden Hancock @ Sat, 01 Nov 2008 06:44:25 -0000

Hayden Hancock — Sat, 01 Nov 2008 06:44:25 -0000

I am only on page 77 of the Beta book and have run into an error on rake db:migrate.

Ruby version: 1.8.6
Rails version: 2.1.2
Gem version: 1.3.1

rake aborted!
no such file to load -- sqlite3

I’ve installed rake using the command: gem install rake
I’ve also tried deleting the “Depot” application and restarting but continue to get the same error.

Help! Stuck @ Chapter 8 posted by Sammy @ Wed, 29 Oct 2008 02:27:13 -0000

Sammy — Wed, 29 Oct 2008 02:27:13 -0000

Hi there,

I am stuck in chapter 8, more specifically in 8.3.
I have followed all the steps and double checked them and I get this error
—-—-—-—-—-—-—-—-—-—-—-—-—-—-— NoMethodError in StoreController#add_to_cart

You have a nil object when you didn’t expect it!
You might have expected an instance of Array.
The error occurred while evaluating nil.find

RAILS_ROOT: /home/sammy/Projects/depot
Application Trace | Framework Trace | Full Trace

app/controllers/store_controller.rb:8:in `add_to_cart’
—-—-—-—-—-—-—-—-—-—-—-—-—-—--

I assume it complains about the ”@items.find” in store_controller…but cant figure out why…

Anyone experienced the same? What am I doing wrong?

A problem in crearting a "rails" application in "InstantRails" posted by Abder-Rahman Hasan Ali @ Wed, 22 Oct 2008 17:22:00 -0000

Abder-Rahman Hasan Ali — Wed, 22 Oct 2008 17:22:00 -0000

I’m using “InstantRails”.

I’m trying to create a new “Rails” application using the following command:

rails demo

And, this is what I get:

C:/InstantRails/ruby/bin/rails:9:in `require’: no such file to load—rubygems
(LoadError) from C:/InstantRails/ruby/bin/rails:9

Why is that? and, what should I do?

Thanks.

Online

Slighlty Confused posted by Jason Franklin-Stokes @ Thu, 09 Oct 2008 22:06:42 -0000

Jason Franklin-Stokes — Thu, 09 Oct 2008 22:06:42 -0000

In routes.rb, you need to add

map.game ‘game’, :controller => ‘game’, :action => ‘index’

or better

map.resources :games

Foreign Key constraints posted by Jason Franklin-Stokes @ Thu, 09 Oct 2008 21:56:27 -0000

Jason Franklin-Stokes — Thu, 09 Oct 2008 21:56:27 -0000

The general consensus is that the data in your database should outlive the software that you use to read, write and update the data in it.

Therefore if you include foreign key constraints on a database level any old piece o software can use the data – You make your data rails independent.

The other advantage is that you can produce diagrams showing the relations of your tables to one another (which is in fact helpful when things get larger).

Also adding these constrains gives you a safety net when deleting dependent fields across different tables. i.e. if your miss a declaration your code, the database won’t. – thus decreasing the risk of table rows floating around in the table with no parents.

Sqlite3 does not support foreign key restrains – however, you should no be using it in production mode. Use Postgress or MYSQL etc – which support this feature anyway.

Routing Errors posted by Jason Franklin-Stokes @ Thu, 09 Oct 2008 21:46:11 -0000

Jason Franklin-Stokes — Thu, 09 Oct 2008 21:46:11 -0000

just an after note: when ever you make any changes to routes.rb always resart the server.

generate/scaffold command problem posted by Roy Stannard @ Mon, 29 Sep 2008 11:25:58 -0000

Roy Stannard — Mon, 29 Sep 2008 11:25:58 -0000

Success! I managed to solve the mysq db creaate problem.

Following the ‘last resort’ method at the end of

https://help.ubuntu.com/community/MysqlPasswordReset

From the console:
sudo apt-get—purge remove mysql-server mysql-common mysql-client
and
sudo apt-get install mysql-server mysql-common mysql-client

this put up an input screen which allowed me to set user and password. Synaptic did not do this

Since I had no data to worry about, this method was a no-brainer.

Mysql is now working with rails 2,

Thanks for your help.

I tried downloading SQLite posted by Aron Grinshtein @ Thu, 25 Sep 2008 14:00:24 -0000

Aron Grinshtein — Thu, 25 Sep 2008 14:00:24 -0000

I am using a MAC OS X 10.3.9. Dave says that I have to download SQLite. I tried downloading it with no success. I downloaded the zip file, unzipped it, and it doesnt work.

Any suggestions?

Thanks

generate/scaffold command problem posted by Sam Ruby @ Mon, 22 Sep 2008 17:06:00 -0000

Sam Ruby — Mon, 22 Sep 2008 17:06:00 -0000

Your mysql status indicates that your username is roy, but your database.yml tells rails to use root instead.

generate/scaffold command problem posted by Roy Stannard @ Mon, 22 Sep 2008 16:49:15 -0000

Roy Stannard — Mon, 22 Sep 2008 16:49:15 -0000

Sorry about the messed up database.yml details. I’m not sure why this happened

Here they are again
development:
adapter: mysql
encoding: utf8
database: depot_development
username: root
password: random #socket: /var/run/mysqld/mysqld.sock
host: localhost

generate/scaffold command problem posted by Roy Stannard @ Mon, 22 Sep 2008 16:45:44 -0000

Roy Stannard — Mon, 22 Sep 2008 16:45:44 -0000

Actually I meant to post mysql status info before
mysql> status;
—-—-—
mysql Ver 14.12 Distrib 5.0.51a, for debian-linux-gnu (i486) using readline 5.2

Connection id: 45
Current database:
Current user: roy@localhost
SSL: Not in use
Current pager: stdout
Using outfile: ’’
Using delimiter: ;
Server version: 5.0.51a-3ubuntu5.1 (Ubuntu)
Protocol version: 10
Connection: Localhost via UNIX socket
Server characterset: latin1
Db characterset: latin1
Client characterset: latin1
Conn. characterset: latin1
UNIX socket: /var/run/mysqld/mysqld.sock
Uptime: 8 hours 8 min 15 sec

and the relevant section in database.yml

development: adapter: mysql encoding: utf8 database: depot_development username: root password: random

socket: /var/run/mysqld/mysqld.sock host: localhost

I’ve looked at 72-73 and I’m really not sure where to go from here.

I’m still getting this error

roy@prospero:~/programming/rails_apps/agile_rails/depot$ mysqladmin -u root -p create depot_development
Enter password:
mysqladmin: connect to server at ‘localhost’ failed
error: ‘Access denied for user ‘root’@’localhost’ (using password: YES)’

Thanks for your help, I do appreciate it.

Roy

generate/scaffold command problem posted by Sam Ruby @ Mon, 22 Sep 2008 15:35:54 -0000

Sam Ruby — Mon, 22 Sep 2008 15:35:54 -0000

Looks like you got a connection, but didn’t provide the right user and password. Check your config/database.yml. You can find more information on pages 72-73 in the B1.5 printing of the PDF.

generate/scaffold command problem posted by Roy Stannard @ Mon, 22 Sep 2008 14:58:19 -0000

Roy Stannard — Mon, 22 Sep 2008 14:58:19 -0000

Duh! thanks Sam. It works.

Actually, since my first post, I’ve been looking at using mysql rather than sqlite. My reasons are that I worked thru most of AWDWR2 and have some (little) familiarity with mysql and also I have some data in an mysql database that I will be using later.

So I set up a depot app with rails configured for mysql using rails—database=mysql depot that runs OK

But when I try to create a db I get an error message

roy@prospero:_{/programming/rails_apps/agile_rails$ mysqladmin -u root create depot_development
mysqladmin: connect to server at ‘localhost’ failed
error: ‘Access denied for user ‘root’@’localhost’ (using password: NO)’}

I have installed mysql and it seems to be working

roy@prospero:/programming/rails_apps/agile_rails/depot$ mysqladmin version
mysqladmin Ver 8.41 Distrib 5.0.51a, for debian-linux-gnu on i486
Copyright© 2000-2006 MySQL AB
This software comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to modify and redistribute it under the GPL license

Server version 5.0.51a-3ubuntu5.1
Protocol version 10
Connection Localhost via UNIX socket
UNIX socket /var/run/mysqld/mysqld.sock
Uptime: 6 hours 28 min 1 sec

and

roy@prospero:~/programming/rails_apps/agile_rails/depot$ mysqladmin version
mysqladmin Ver 8.41 Distrib 5.0.51a, for debian-linux-gnu on i486
Copyright© 2000-2006 MySQL AB
This software comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to modify and redistribute it under the GPL license