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  • Position of object in database

    - by fl00r
    Hi! I have got model Team and I've got (i.e.) team = Team.first :offset => 20. Now I need to get number of position of my team in db table. I can do it in ruby: Team.all.index team #=> 20 But I am sure that I can write it on SQL and it will be less expensive for me with big tables.

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  • Is there a SaaS for logging user activity?

    - by JoshL
    In almost every app that I build I create some kind of user log table to log various activities that my actual USERS (not visitors, but someone with an account) perform on the site. This is primarily used for customer service issues to allow me to pull up a record of the pages and actions that a user has visited. The downside to this is the size of the UserLogs table. It gets immense. I'm not sure if it is common practice or not for others to log INDIVIDUAL (not aggregate like Google Analytics) user behavior to a database, but if it is I'm wondering if any form of a SaaS exists to help offload this task? I essentially need a RESTful API that lets me store and retrieve individual user activity quickly and securely. Anyone know of any or am I the only one who has this issue?

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  • Authlogic Facebook find existing account

    - by pcasa
    Using Authlogic and Authlogic Facebook Connect. before_filter works great. Get name and facbook_uid saved in db. Only problem is that it saves a new record every time. Need help figuring out how to build some type of find_by_facebook_uid_or_create_user I have tried reading up on the API's for facebooker, but this is way over me. :( UPDATED - users_controller.rb def before_connect(facebook_session) self.firstname = facebook_session.user.first_name self.lastname = facebook_session.user.last_name self.persistence_token = reset_persistence_token end application_controller.rb before_filter :set_facebook_session helper_method :facebook_session

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  • Does it make sense to fragment cache static partials

    - by ash34
    Hi, I have my views and layouts split into multiple partials, some of them are static partials i.e, no data from the database being displayed here. Does it make sense to cache these to prevent the erb templating system from generating the html each time or it only makes sense to cache in situations where something needs to be retrieved from the db each time. thanks, ash

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  • disabling transactional fixtures in Rspec has no effect

    - by Dia
    Due to a legacy database I'm using, I'm stuck with MySQL using MyISAM, which means my tables don't support transactions. This is causing the tests to fail, since table data generated (I'm using factory_girl for fixtures) by the tests are not reverted for each scenario. I discovered that Rspec exposes the config.use_transactional_fixtures config setting in spec_helper.rb. which is set to true by default. When I set it to false, I don't see any effect on my tests; they still fail due to duplicate records. Isn't that setting supposed to automatically unroll any changes made to the DB? Or am I supposed to do that manually?

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  • require_owner code to limit controller actions not recognizing current user as owner

    - by bgadoci
    I am trying to restrict access to certain actions using a before_filter which seems easy enough. Somehow the ApplicationController is not recognizing that the current_user is the owner of the user edit action. When I take the filter off the controller correctly routes the current_user to their edit view information. Here is the code. Link to call edit action from user controller (views/questions/index.html.erb): <%= link_to "Edit Profile", edit_user_path(:current) %> ApplicationController (I am only posting the code that I think is affecting this but can post the whole thing if needed). class ApplicationController < ActionController::Base def require_owner obj = instance_variable_get("@#{controller_name.singularize.camelize.underscore}") # LineItem becomes @line_item return true if current_user_is_owner?(obj) render_error_message("You must be the #{controller_name.singularize.camelize} owner to access this page", root_url) return false end end and the before_filter class UsersController < ApplicationController before_filter :require_owner, :only => [:edit, :update, :destroy] #... end I simply get the rendering of the error message from the ApplicationController#require_owner action.

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  • DataMapper: using auto_migrate! with many-to-many dependencies?

    - by pschuegr
    Hi, I'm trying to migrate my app from MySql to Postgresql, using Rails3-pre and the latest DataMapper. I have several models which are related through many-to-many relationships using :through = Resource, which means that DataMapper creates a join table with foreign keys for both models. I can't auto_migrate! these changes, because I keep getting this: ERROR: cannot drop table users because other objects depend on it DETAIL: constraint artist_users_owner_fk on table artist_users depends on table users constraint site_users_owner_fk on table site_users depends on table users HINT: Use DROP ... CASCADE to drop the dependent objects too. I have tried everything I can think of, and thought I had things working when I added :constraint = :skip to the field definition, but I keep getting that error back when I try and run auto_migrate. I thought that :skip meant that it would ignore the dependents, but maybe that only applies for deleting rows and not dropping tables? I should mention that I can run auto_migrate after i nuke the db once, but after that, errors. Any suggestions or advice much appreciated.

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  • Why getting active record error when trying to work on arrays?

    - by keruilin
    I have the following association in my User model: has_and_belongs_to_many :friends, :class_name => 'User', :foreign_key => 'friend_id' I have the following uniqueness constraint in my user_users table: UNIQUE KEY `no_duplicate_friends` (`user_id`,`friend_id`) In my code, I am retrieving a user's friends -- friends = user.friends. friends is an array. I have a scenario where I want add the user with all those friends to the friends array. Ex: friends << user_with_all_those_homies However, I get the following error: ActiveRecord::StatementInvalid: Mysql::Error: Duplicate entry '18-18' for key 'no_duplicate_friends': INSERT INTO `users_users` (`friend_id`, `user_id`) VALUES (18, 18) What gives?

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  • Can I combine atom feeds from seperate resources into one?

    - by stephemurdoch
    I have two resource for which I would like to generate feeds; they are called podcasts and posts. The problem is that when I include the auto_discovery_link in my templates, I have to add one for each of the two atom feeds that I've generated. The reason why this is a problem is that there are now two feeds for users to choose from, and most people probably won't realise that they need both so will only pick one. Is there a way to combine atom feeds from different resources into one atom feed? Like application.atom or something? I'm using builder to generate the feed.

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  • Why is capistrano acting up like this?

    - by Matt
    I am having an issue with my deploy i ran cap deploy and got this Warning: Permanently added 'github.com,207.97.227.239' (RSA) to the list of known hosts. ** [174.143.150.79 :: out] Permission denied (publickey). ** fatal: The remote end hung up unexpectedly command finished *** [deploy:update_code] rolling back * executing "rm -rf /home/deploy/transprint/releases/20110105034446; true" servers: ["174.143.150.79"] [174.143.150.79] executing command here is my deploy.rb set :application, "transprint" set :domain, "174.149.150.79" set :user, "deploy" set :use_sudo, false set :scm, :git set :deploy_via, :remote_cache set :app_path, "production" set :rails_env, 'production' set :repository, "[email protected]:myname/something.git" set :scm_username, 'deploy' set :deploy_to, "/home/deploy/#{application}" role :app, domain role :web, domain role :db, domain, :primary => true please help

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  • Creating relationship between two model instances

    - by Lowgain
    This is probably pretty simple, but here: Say I've got two models, Thing and Tag class Thing < ActiveRecord::Base has_and_belongs_to_many :tags end class Tag < ActiveRecord::Base has_and_belongs_to_many :things end And I have an instance of each. I want to link them. Can I do something like: @thing = Thing.find(1) @tag = Tag.find(1) @thing.tags.add(@tag) If not, what is the best way to do this? Thanks!

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  • ActiveRecord field normalization

    - by Bill
    I feel bad asking this question, as I thought I knew enough about Activerecord to answer this myslef. But such is the way of having SO available ... I'm trying to remove the commas from a field in a model of mine, I want the user to be able to type a number , ie 10,000 and that number be stored in the database as 10000. I was hoping that I could do some model-side normalization to remove the comma. I don't want to depend on the view or controller to properly format my data. I tried ; before_validation :normalize def normalize self['thenumber'] = self['thenumber'].to_s.gsub(',','') end no worky :(

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  • Escape doube and single backslashes in a string in Ruby

    - by Nick Gorbikoff
    Hello. I'm trying to access a network path in my ruby script on a windows platform in a format like this. \\servername\some windows share\folder 1\folder2\ Now If I try to use this as a path, it won't work. Single backslashes are not properly escaped for this script. path = "\\servername\some windows share\folder 1\folder2\" d = Dir.new(path) I tried everything I could think of to properly escape slashes in the path. However I can't escape that single backslash - because of it's special meaning. I tried single quotes, double quotes, escaping backslash itself, using alternate quotes such as %Q{} or %q{}, using ascii to char conversion. Nothing works in a sense that I'm not doing it right. :-) Right now the temp solution is to Map a network drive N:\ pointing to that path and access it that way, but that not a solution. Does anyone have any idea how to properly escape single backslashes? Thank you

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  • open flash chart help needed

    - by Carlos Barbosa
    def reparto_de_ventas_por_marca #obtener los montos de las ventas en el periodo comprendido y sumarlas @ventas = Venta.find(:all) @marcas = Marca.find(:all) title = Title.new("Ingresos de este mes: #{@total}") pie = Pie.new pie.start_angle = 35 pie.animate = true pie.tooltip = '#val# de #total#<br>#percent# de 100%' pie.colours = ["#245a9c", "#fff"] pie.values = [ @marcas.each do |result| PieValue.new(result.ventas.count, result.name) end ] chart = OpenFlashChart.new chart.title = title chart.add_element(pie) chart.x_axis = nil render :text => chart.to_s end It just doesn't works i need to get the values to create a graph with flash chart. any help will be appreciated.

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  • Ruby - Read file in batches

    - by Algorist
    Hi, I am reading a file that is 10mb in size and which contains some id's. I read them into a list in ruby. I am concerned that it might cause memory issues in the future, when the number of id's in file might increase. Is there a effective way of reading a large file in batches? Thank you

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  • Counting distinct and duplicate attribute values in an array

    - by keruilin
    I have an array of users that's sorted in descending order based on total_points. I need to find the rank of each user in that array. The issue is that more than one user can have the same total points and, thus, the same rank. For example, three users could be in 3rd place with 200 Points. Here's my current code: class Leader < ActiveRecord::Base def self.points_leaders all_leaders = all_points_leaders # returns array of users sorted by total_points in desc order all_leaders_with_rank = [] all_leaders.each do |user| rank = all_leaders.index(user)+1 all_leaders_with_rank << Ldr.new(rank, user) # Ldr is a Struct end return all_leaders_with_rank end end How must I modify the code so that the correct rank is returned, and not just the value of the index position?

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  • Administrator account: Where, when and how?

    - by Pickels
    Where, when and how to insert/create the administrator account for a website? Here are a few ways I encountered in other websites/webapplication. Installation wizard: You see this a lot in blog software or forums. When you install the application it will ask you to create an administrator user. Private webapplication will most likely not have this. Installation file: A file you run to install your application. This file will create the administrator account for you. Configuration files: A configuration file that holds the credentials for the administrator account. Manually insert it into a database: Manually insert the administrator info into the database.

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  • has_one | nested attributes -

    - by user283179
    How would I show one of many nested objects in the index view class Album < ActiveRecord::Base has_many: photos accepts_nested_attributes_for :photos, :reject_if => proc { |a| a.all? { |k, v| v.blank?} } has_one: cover accepts_nested_attributes_for :cover end class Album Controller < ApplicationController layout "mini" def index @albums = Album.find(:all, :include => [:cover,]).reverse respond_to do |format| format.html # index.html.erb format.xml { render :xml => @albums } end end This is what I have so fare. I just want to show a cover for each album. Any info on this would be a massive help!!

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  • Is there a method I can use across controllers and if so, how do I use it?

    - by Angela
    I have several controllers that take an instance of different classes each (Email, Call, Letter, etc) and they all have to go through this same substitution: @email.message.gsub!("{FirstName}", @contact.first_name) @email.message.gsub!("{Company}", @contact.company_name) @email.message.gsub!("{Colleagues}", @colleagues.to_sentence) @email.message.gsub!("{NextWeek}", (Date.today + 7.days).strftime("%A, %B %d")) @email.message.gsub!("{ContactTitle}", @contact.title ) So, for example, @call.message for Call, @letter.message for Letter, etcetera. This isn't very dry. I'd like to have something like def messagesub(asset) @asset.message.gsub.... end or something like that so I can just use messagesub method in each controller.

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  • link_to for calling an action, instead of a button_to

    - by Brian Roisentul
    I'd like to call an action with a link_to button without being redirected to another page(I don't want ajax). For you to have an idea, I'm trying to accomplish a sort "link button" in a search page. So, when the link is clicked, the page should be refreshed showing the list ordered as I tell it in the action. If I do the following in my view, it will ask me for a template called as the action, and I don't want it: <%= link_to 'M&Aacute;S RELEVANTES', search_filter_relevance_path %> My routes file looks like this: map.search_filter_relevance "/anuncios/buscar", :controller => 'announcements', :action => 'search_filter_relevance' And my controller looks like this(I haven't developed the functionality yet): def search_filter_relevance end Any help on this will be appreciated.

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  • Need to reload current_cart to get the test passed

    - by leomayleomay
    I'm testing my online store app with RSpec, here's what I'm doing: # spec/controllers/line_items_controller_spec.rb require 'spec_helper' describe LineItemsController do describe "POST 'create'" do before do @current_cart = Factory(:cart) controller.stub!(:current_cart).and_return(@current_cart) end it 'should merge two same line_items into one' do @product = Factory(:product, :name => "Tee") post 'create', {:product_id => @product.id} post 'create', {:product_id => @product.id} assert LineItem.count.should == 1 assert LineItem.first.quantity.should == 2 end end end # app/controllers/line_items_controller.rb class LineItemsController < ApplicationController def create current_cart.line_items.each do |line_item| if line_item.product_id == params[:product_id] line_item.quantity += 1 if line_item.save render :text => "success" else render :text => "failed" end return end end @line_item = current_cart.line_items.new(:product_id => params[:product_id]) if @line_item.save render :text => "success" else render :text => "failed" end end end The problem right now is it never added up two line_items having the same product into one, because the second time I entered into the line_items_controller#create, the current_cart.line_items is [], I have run current_cart.reload to get the test passed, any idea what's going wrong?

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