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  • How to use a scope in combination with a Model method?

    - by Bjorn
    Hi all, I'm currently working on some scope filters, and I'd like to have it filter on a method (don't know how to name it otherwise). My code: class Product < ActiveRecord::Base def price_with_discount price-discount.to_f end scope :by_price, lambda {|min,max|{ :conditions => { :price_with_discount => min.to_f..max.to_f }}} end This doesn't work: "No attribute named price_with_discount exists for table products". How can I trick my scope into using the method I defined instead of searching for a column named price_with_discount? Bjorn

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  • Generate a controller with all the RESTful functions

    - by Barb
    Hello, I am trying to generate a controller with all the RESTful actions stubbed. I had read at link text that all I needed to do was to use call the generator with just a controller name I would get just that. So, I ran "script/generate rspec_controller Properties" and I got an empty controller. Any other suggestions would be greatly appreciated.

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  • Failed to install nokogiri and webrat on Mac OS X

    - by 23tux
    Hi, I was trying to install webrat on my Mac, but I've got the error, that the iconv.h is missing. Here is the log: Building native extensions. This could take a while... ERROR: Error installing webrat: ERROR: Failed to build gem native extension. /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb checking for iconv.h in /opt/local/include/,/opt/local/include/libxml2,/opt/local/include,/opt/local/include,/opt/local/include/libxml2,/usr/local/include,/usr/local/include/libxml2,/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/include,/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/include/libxml2,/usr/include,/usr/include/libxml2... no iconv is missing. try 'port install iconv' or 'yum install iconv' *** extconf.rb failed *** Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers. Check the mkmf.log file for more details. You may need configuration options. Provided configuration options: --with-opt-dir --without-opt-dir --with-opt-include --without-opt-include=${opt-dir}/include --with-opt-lib --without-opt-lib=${opt-dir}/lib --with-make-prog --without-make-prog --srcdir=. --curdir --ruby=/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby --with-iconv-dir --without-iconv-dir --with-iconv-include --without-iconv-include=${iconv-dir}/include --with-iconv-lib --without-iconv-lib=${iconv-dir}/lib --with-xml2-dir --without-xml2-dir --with-xml2-include --without-xml2-include=${xml2-dir}/include --with-xml2-lib --without-xml2-lib=${xml2-dir}/lib --with-xslt-dir --without-xslt-dir --with-xslt-include --without-xslt-include=${xslt-dir}/include --with-xslt-lib --without-xslt-lib=${xslt-dir}/lib Gem files will remain installed in /Library/Ruby/Gems/1.8/gems/nokogiri-1.4.1 for inspection. Results logged to /Library/Ruby/Gems/1.8/gems/nokogiri-1.4.1/ext/nokogiri/gem_make.out The weird thing is, that the iconv.h is already in the /opt/local/include/ directory. Can anyone recommend a solution? thx, tux

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  • cache_money only writing to memcached on creates and updates, and seemingly never looking in the cac

    - by Shane Liebling
    I seem to be having some extremely odd cache_money interactions. When I am on the console, and I create a new instance of a class and save it I see the cache misses and cache stores on my memcached console output. Then when the create finishes I see a bunch of cache deletions. If I then try to do any kind of find for the newly created object (or any other objects for that matter) I never see any cache access. This is highly confusing. I could kind of understand if all finds never hit the cache (though that in and of itself would be an issue requiring investigation), but finds do seem to hit the cache when the object is being created (checking for associations and such). Anyone have this experience in the past at all? Any thoughts? AFAIK there isn't really much in the way of configuration options for cache_money, and it certainly doesn't seem like there are any that would be on by default and be creating these kinds of symptoms. My cache_money config is basically straight out of the docs. Any help would be greatly appreciated.

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  • package issue with ubuntu 10.10 and passenger requirements

    - by user368937
    I'm trying to get Passenger working with Ubuntu 10.10 and I'm running into a problem. It seems that the passenger installer is not recognizing the virtual package. I'm getting this error: Code: passenger-install-apache2-module ... * OpenSSL support for Ruby... not found ... And then it says, run this: * To install OpenSSL support for Ruby: Please run apt-get install libopenssl-ruby as root. When I run the above command, it refers to the libruby package: sudo apt-get install libopenssl-ruby Reading package lists... Done Building dependency tree Reading state information... Done Note, selecting 'libruby' instead of 'libopenssl-ruby' libruby is already the newest version. 0 upgraded, 0 newly installed, 0 to remove and 43 not upgraded. When I look at the details for libruby, it says it provides libopenssl-ruby: Code: Provides: libbigdecimal-ruby, libcurses-ruby, libdbm-ruby, libdl-ruby, libdrb-ruby, liberb-ruby, libgdbm-ruby, libiconv-ruby, libopenssl-ruby, libpty-ruby, libracc-runtime-ruby, libreadline-ruby, librexml-ruby, libsdbm-ruby, libstrscan-ruby, libsyslog-ruby, libtest-unit-ruby, libwebrick-ruby, libxmlrpc-ruby, libyaml-ruby, libzlib-ruby And when I rerun the passenger installer, it gives the same error: Code: passenger-install-apache2-module ... * OpenSSL support for Ruby... not found ... Let me know if you need more info. How do I fix this?

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  • Logging in with webrat, celerity doesn't recognize that.

    - by Matthew Willhite
    I'm using cucumber with webrat, and I am just starting to integrate culerity/celerity. My webrat login steps have been working great, and I have them as a Background for many of my scenarios. The problem is that although I can log in successfully via webrat, my celerity specific step definitions don't seem to recognize that. I can check the session from the step def and it confirms that I have a valid user that is logged in. Any advice would be greatly appreciated! Thanks

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  • Nested Forms not passing belongs_to :id

    - by Bill Christian
    I have the following model class Project < ActiveRecord::Base has_many :assignments, :conditions => {:deleted_at => nil} has_many :members, :conditions => {:deleted_at => nil} accepts_nested_attributes_for :members, :allow_destroy => true end class Member < ActiveRecord::Base belongs_to :project belongs_to :person belongs_to :role has_many :assignments, :dependent => :destroy, :conditions => {:deleted_at => nil} accepts_nested_attributes_for :assignments, :allow_destroy => true validates_presence_of :role_id validates_presence_of :project_id end and I assume the controller will populate the member.project_id upon project.save for each nested member record. However, I get a validation error stating the project_id is blank. My controller method: def create # @project is created in before_filter if @project.save flash[:notice] = "Successfully created project." redirect_to @project else render :action => 'new' end end Do I need to manually set the project_id in each nested member record? Or what is necessary for the controller to populate when it creates the member records?

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  • Explicit return from a Ruby method - implementation hiding, reuse and optimisations.

    - by Chris McCauley
    Hi, Rather than allowing a Ruby method to blindly return the last statement evaluated, is there any advantage to returning nil explicitly? In terms of implementation hiding and reuse, it seems dangerous to blindly allow the last expression evaluated to be returned - isn't there a danger that a user will rely on this only to get a nasty surprise when the implementation is modified? Surely returning nil would be better unless an explicit return value was given. Following on, is there an optimisation that Ruby can make when the return is a simple type rather than a reference to a more complex object? Chris

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  • ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)

    - by Imran
    Can someone please help as i've spent all day trying to fix this. I installed the latest XAMPP and now i can't connect to mysql from terminal.I checked my .profile file and the PATH seems ok. Does anyone know whats happened and what's the solution? PATH=$PATH:/Applications/XAMPP/xamppfiles/bin export PATH THIS IS A PROGRAMMING QUESTION AS I'M A PHP DEVELOPER TRYING TO DO MY JOB! Thankyou soo much in advance;-)

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  • Thinking sphinx: Problems with polymorphic associations

    - by auralbee
    Hello, I recently switched from ultrasphinx to thinking_sphinx for full-text search. I am trying to figure out how to index fields of polymorphic associations. I found some information but I still have some problems, although it seems to be easy. Here is my setup: class Info < ActiveRecord::Base belongs_to :mappable, :polymorphic => true define_index indexes mappable_type indexes mappable(:name), :as => :mappable_name end class A < ActiveRecord::Base has_many :infos, :as => :mappable end class B < ActiveRecord::Base has_many :infos, :as => :mappable end Amongst others, I want to do a search in the name column of A and B (both classes have this column), so I added the field to my index. When I do rake thinking_sphinx:index I get the following error: Generating Configuration to .../config/development.sphinx.conf rake aborted! undefined method `connection' for Object:Class .../.gem/ruby/1.8/gems/thinking-sphinx-1.3.16/lib/thinking_sphinx/ association.rb:149:in `casted_options' Any idea? Am I missing something? Thanks in advance. Tobi

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  • seed-fu not working on winxp

    - by cbrulak
    I have seed-fu installed on my mac book, no problems. But I can install it fine on winxp but when I run it, I get: Don't know how to bulid task db:seed I checked my installed directory (c:\ruby\libs) and it appears to be there. Any ideas?

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  • Extra arguments for Factory Girl

    - by J. Pablo Fernández
    I need to pass extra arguments to factory girl to be used in a callback. Something like this (but more complex really): Factory.define :blog do |blog| blog.name "Blah" blog.after_create do |blog| blog.posts += sample_posts blog.save! end end and then create it with something like this: Factory.create(:blog, :sample_posts => [post1, post2]) Any ideas how to do it?

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  • Only show content when certain criteria is met?

    - by Elliot
    I'm wondering if theres a best practice for what I'm trying to accomplish... First we have the model categories, categories, has_many posts. Now lets say, users add posts. Now, I have a page, that I want to display only the current user's posts by category. Lets say we have the following categories: A, B, and C User 1, has posted in Categories A and B. In my view I have something like: @categories.each do |category| category.name @posts.each do |post| if post.category_id==category.id post content here end end end The problem with this, is I'm going to show the empty category, as well as the categories that do have content. Is there a more efficient way of going about this? As I don't want to show the empty categories. Best, Elliot

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  • "no block given" errors with cache_money

    - by emh
    i've inherited a site that in production is generating dozens of "no block given" exceptions every 5 minutes. the top of the stack trace is: vendor/gems/nkallen-cache-money-0.2.5/lib/cash/accessor.rb:42:in `add' vendor/gems/nkallen-cache-money-0.2.5/lib/cash/accessor.rb:33:in `get' vendor/gems/nkallen-cache-money-0.2.5/lib/cash/accessor.rb:22:in `call' vendor/gems/nkallen-cache-money-0.2.5/lib/cash/accessor.rb:22:in `fetch' vendor/gems/nkallen-cache-money-0.2.5/lib/cash/accessor.rb:31:in `get' so it appears that the problem is in the cache money plugin. has anyone experienced something similar? i've cut and pasted the relevant code below -- anyone more familiar with blocks able to discern any obvious problems? 11 def fetch(keys, options = {}, &block) 12 case keys 13 when Array 14 keys = keys.collect { |key| cache_key(key) } 15 hits = repository.get_multi(keys) 16 if (missed_keys = keys - hits.keys).any? 17 missed_values = block.call(missed_keys) 18 hits.merge!(missed_keys.zip(Array(missed_values)).to_hash) 19 end 20 hits 21 else 22 repository.get(cache_key(keys), options[:raw]) || (block ? block.call : nil) 23 end 24 end 25 26 def get(keys, options = {}, &block) 27 case keys 28 when Array 29 fetch(keys, options, &block) 30 else 31 fetch(keys, options) do 32 if block_given? 33 add(keys, result = yield(keys), options) 34 result 35 end 36 end 37 end 38 end 39 40 def add(key, value, options = {}) 41 if repository.add(cache_key(key), value, options[:ttl] || 0, options[:raw]) == "NOT_STORED\r\n" 42 yield 43 end 44 end

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  • validates_associated in production

    - by Rien
    Hi all. Imagine a simple model. class Service belongs_to :user validates_associated :user accepts_nested_attributes_for :user end Nothing special right? The validations on the associated User model trigger correctly in development mode. But don't do anything in production. I've added a validates_on_presence :user just like the docs say. This triggers when there's no User associated with the Service, but fill in one thing on the User model and nothing happens! It's driving me up the walls. Am I overlooking something? More info about the MVC: I use formtastic for the forms. Thanks!

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  • TextMate can't find my RSpec gem in opt (from macports)

    - by sbwoodside
    I know I've had this problem before so I'm really frustrated. I've got the Ruby RSpec bundle installed for TextMate, but when I Run Behaviour Description or Run Focused Example I get this wonderful error: /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems.rb:827: in `report_activate_error': Could not find RubyGem rspec (>= 1.1.0) (Gem::LoadError) from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems.rb:261: in `activate' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby /1.8/rubygems.rb:68:in `gem' from /Users/simon/Library/Application Support/TextMate/Bundles/Ruby RSpec.tmbundle/Support/lib/spec_mate.rb:13 from /tmp/temp_textmate.oWRPUR:3:in `require' from /tmp/temp_textmate.oWRPUR:3 (I added linebreaks to make it readable) I'm using macports so my rspec gem is installed in /opt/local/lib/ruby/gems/1.8/gems/. Why isn't it finding it? In Preferences Advanced Shell Variables my TM_RUBY is set to /opt/local/bin/ruby. I also tried the trick here: http://dnite.org/2007/8/28/textmate-and-your-environment-variables/ ... which didn't do anything.

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  • How do I.. get a value for time at 9:00am local, regardless of the timezone?

    - by ander163
    In my app, I need to set a variable for a start time to be 9:00 a.m. local, wherever the user is located. I have a timezone variable for each user and the save and retrieve are all working. But I need to set a variable when I create a new event to be 9:00 am in the user's local time zone. My current method uses the local time of the server, then makes the adjustments for the individual user's time zone. I don't know what I don't know - is there a command to create the value for "Today's date at 9:00 am where you are"? My current code is: t = Time.now.to_date.beginning_of_day + 11.hours (forcing the 2 hour offset between my primary user and the server in a different timezone).

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  • Help on using paperclip plugin

    - by Brian Roisentul
    I've just installed this plugin, created the migrations, added everything I needed to make it work(I didn't install ImageMagick yet). The problem is when I get the upload control parameter to save it in my controller, I get something like this: #<File:C:\Users\Brian\AppData\Local\Temp\RackMultipart.2560.6677> instead of a simple string, like C:\Users\Brian\AppData\Local\Temp\RackMultipart.2560.6677 And if I try to read it I get the following exception: TypeError backtrace must be Array of String What am I doing wrong? How do I read it or simply get rid of the # and < symbols?

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  • Date and Time Conversion in Ruby

    - by dkris
    I am currently looking on converting Thu Jun 10 16:17:55 +0530 2010 to 15/06/2010 or 15-06-2010 using Ruby I am getting the dates from the DB as shown below. @tickets = Ticket.find(:all) for ticket in @tickets print ticket.created_at end I have been looking around for resources as I a n00b in RoR/Ruby. I have looked at Class Date Class DateTime and couldn't make much of it. Please let me know how I could achieve this conversion in Ruby.

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  • Hash inside YAML file?

    - by yuval
    I want to include a hash and list inside a YAML file that I'm parsing with the following command: APP_CONFIG = YAML.load_file("#{RAILS_ROOT}/config/config.yml") My YAML file looks like this: feeds: [{:url => 'http://www.google.com', :label => 'default'}] But this doesn't seem to work. How would I go about achieving such a thing? Thanks, Yuval

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  • Ruby generic filesystem libraries

    - by webdestroya
    I am looking for a "Virtual File System" type library for ruby. I want to be able to have a completely generic file system that I can easily switch between using Local files and using S3 or using FTP or something like that. (Identical to VFS for Java) Has anybody used any type of generic file system for ruby (I just need it to support local files and Amazon S3) Any pointers would be much appreciated.

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  • Is there a way of executing embedded ruby in a javascript file in my /public/javascripts directory?

    - by brad
    I have a form with an ever-growing amount of associated javascript. At present this javascript lives in my form view which is fine, but it's getting larger and starting to overwhelm the form making it difficult to work on the form. I want to put this in a separate file in my /public/javascripts directory but a lot of the javascript is generated by embedded ruby. This embedded ruby is ignored and passed through to the browser if I just put the code here. What is the best way (if any) of having this embedded ruby executed and the javascript being generated in the same way as if it were in my view?

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  • heroku time zone problem, logging local server time

    - by Ole Morten Amundsen
    UPDATE: Ok, I didn't formulate a good Q to be answered. I still struggle with heroku being on -07:00 UTC and I at +02:200 UTC. Q: How do I get the log written in the correct Time.zone ? The 9 hours difference, heroku (us west) - norway, is distracting to work with. I get this in my production.log (using heroku logs): Processing ProductionController#create to xml (for 81.26.51.35 at 2010-04-28 23:00:12) [POST] How do I get it to write 2010-04-29 08:00:12 +02:00 GMT ? Note that I'm running at heroku and cannot set the server time myself, as one could do at your amazon EC2 servers. Below is my previous question, I'll leave it be as it holds some interesting information about time and zones. Why does Time.now yield the server local time when I have set the another time zone in my environment.rb config.time_zone = 'Copenhagen' I've put this in a view <p> Time.zone <%= Time.zone %> </p> <p> Time.now <%= Time.now %> </p> <p> Time.now.utc <%= Time.now.utc %> </p> <p> Time.zone.now <%= Time.zone.now %> </p> <p> Time.zone.today <%= Time.zone.today %> </p> rendering this result on my app at heroku Time.zone (GMT+01:00) Copenhagen Time.now Mon Apr 26 08:28:21 -0700 2010 Time.now.utc Mon Apr 26 15:28:21 UTC 2010 Time.zone.now 2010-04-26 17:28:21 +0200 Time.zone.today 2010-04-26 Time.zone.now yields the correct result. Do I have to switch from Time.now to Time.zone.now, everywhere? Seems cumbersome. I truly don't care what the local time of the server is, it's giving me loads of trouble due to extensive use of Time.now. Am I misunderstanding anything fundamental here?

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