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• How to mix mongodb and a traditional db in Rails?

  - by Jonathan

  I am considering using MongoDB (mongo-mapper) for a portion of my rails application. I am not ready to go whole hog MongoDB because there are too many useful gems that depend on a traditional DB. That being said there are parts of my application that would be great to leverage a document database. Has anyone had success mixing the two approaches? How do you link activerecord models with mongomapper models? Thanks, Jonathan

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• Rails: restful authentication setup help

  - by SuperString

  Hi I downloaded the plugin from http://github.com/techweenie/restful-authentication.git Then I run rails generate plugin authenticated user session This is the result I got: create vendor/plugins/authenticated create vendor/plugins/authenticated/MIT-LICENSE create vendor/plugins/authenticated/README create vendor/plugins/authenticated/Rakefile create vendor/plugins/authenticated/init.rb create vendor/plugins/authenticated/install.rb create vendor/plugins/authenticated/uninstall.rb create vendor/plugins/authenticated/lib create vendor/plugins/authenticated/lib/authenticated.rb invoke test_unit inside vendor/plugins/authenticated create test create test/authenticated_test.rb create test/test_helper.rb Then I tried to do rake db:migrate But I got error that says rake tasks in restful-authentication/tasks/auth.rake are deprecated. Use lib/tasks instead. I am new to rails, tried looking online but things seem to be outdated. Please help!

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• Combining Searchlogic named scopes with OR

  - by jaycode

  Is something like this possible? Product.price_greater_than(10000).or_tags_name_equals('luxury') The wiki doesn't help much on this... I saw in the wiki: User.id_or_age_lt_or_username_or_first_name_begins_with(10) => "id < 10 OR age < 10 OR username LIKE 'ben%' OR first_name like'ben%'" I really don't get that, how in the world did "ben" comes up??? could anyone help please?

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• Connection error with heroku db:push with postgresql

  - by Toby Hede

  I have suddenly started seeing this strange error when trying to push my database to heroku. > heroku db:push Auto-detected local database: postgres://infinity:infinity@localhost/infinity_development?encoding=utf8 Failed to connect to database: Sequel::DatabaseConnectionError -> TypeError wrong argument type String (expected Array) My app works fine - the credentials are all set locally.

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• Redmine connecting to SVN through SSL

  - by Pekka

  I am having trouble connecting Redmine to a locally hosted subversion repository using SSL. I suspect it's the self-signed certificate that usually triggers a warning in the SVN client and browser. When I try to connect to the local repo through SSL in Redmine, I get a red "Revision not available" error. When I try connecting through svn://, the connection times out, and I have to restart the web server. Connecting without SSL works without problems. It would be nice to run subversion on SSL to make it safely accessible from the outside as well. I could run the repository through plain HTTP but would like SSL for outside communication. As far as I understand, subversion can't be run both ways at the same time. Does anybody know what to do in such a situation? Is there a configuration setting to ignore invalid certificates somewhere?

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• how to add a entry to tables with relationships?

  - by siulamvictor

  I have 2 models, Users & Accounts. They are in one-to-many relationship, i.e. each accounts have many users. Accounts company_id company_name company_website Users user_id user_name password company_id email How can I add these entries to database using ActiveRecord? Supposed I don't is the company existed in the database when I add a new entry. Name Email Password Company ----------------------------------------------------------------------------- Albert [email protected] 123456 ABC Company Betty [email protected] 234567 ABC Company Carmen [email protected] 765432 XXX Company David [email protected] 654321 ABC Company

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• CruiseControl.rb: Error in plugin EmailNotifier: 501 5.1.7 Bad sender address syntax?

  - by Justin

  Hi guys, I can't seem to figure this out. I setup my email address in cruisecontrol.rb but no matter how I set it, it always gives me this error. Current settings are: project/cruise_config.rb: project.email_notifier.emails = ['[email protected]'] project.email_notifier.from = '[email protected]' site_config.rb: ActionMailer::Base.smtp_settings = { :address => "localhost", :domain => "myemail.com", } I've even tried ActionMailer::Base.delivery_method = :sendmail Configuration.email_from = '[email protected]' Any thoughts as to why my cruisecontrol can't send an e-mail? Thanks! Justin

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• How to use a nested form for multiple models in one form?

  - by Magicked

  I'm struggling to come up with the proper way to design a form that will allow me to input data for two different models. The form is for an 'Incident', which has the following relationships: belongs_to :customer belongs_to :user has_one :incident_status has_many :incident_notes accepts_nested_attributes_for :incident_notes, :allow_destroy => false So an incident is assigned to a 'Customer' and a 'User', and the user is able to add 'Notes' to the incident. I'm having trouble with the notes part of the form. Here how the form is being submitted: {"commit"=>"Create", "authenticity_token"=>"ECH5Ziv7JAuzs53kt5m/njT9w39UJhfJEs2x0Ms2NA0=", "customer_id"=>"4", "incident"=>{"title"=>"Something bad", "incident_status_id"=>"2", "user_id"=>"2", "other_id"=>"AAA01-042310-001", "incident_note"=>{"note"=>"This is a note"}}} It appears to be attempting to add the incident_note as a field under 'Incident', rather than creating a new entry in the incident_note table with an incident_id foreign key linking back to the incident. Here is the 'IncidentNote' model: belongs_to :incident belongs_to :user Here is the form for 'Incident': <% form_for([@customer,@incident]) do |f| %> <%= f.error_messages %> <p> <%= f.label :other_id, "ID" %><br /> <%= f.text_field :capc_id %> </p> <p> <%= f.label :title %><br /> <%= f.text_field :title %> </p> <p> <%= label_tag 'user', 'Assign to user?' %> <%= f.select :user_id, @users.collect {|u| [u.name, u.id]} %> </p> <p> <%= f.label :incident_status, 'Status?' %> <%= f.select :incident_status_id, @statuses.collect {|s| [s.name, s.id]} %> </p> <p> <% f.fields_for :incident_note do |inote_form| %> <%= inote_form.label :note, 'Add a Note' %> <%= inote_form.text_area :note, :cols => 40, :rows => 20 %> <% end %> </p> <p> <%= f.submit "Create" %> </p> <% end %> And finally, here are the incident_controller entries for New and Create. New: def new @customer = current_user.customer @incident = Incident.new @users = @customer.users @statuses = IncidentStatus.find(:all) @incident_note = IncidentNote.new respond_to do |format| format.html # new.html.erb format.xml { render :xml => @incident } end end Create: def create @users = @customer.users @statuses = IncidentStatus.find(:all) @incident = Incident.new(params[:incident]) @incident.customer = @customer @incident_note = @incident.incident_note.build(params[:incident_note]) @incident_note.user = current_user respond_to do |format| if @incident.save flash[:notice] = 'Incident was successfully created.' format.html { redirect_to(@incident) } format.xml { render :xml => @incident, :status => :created, :location => @incident } else format.html { render :action => "new" } format.xml { render :xml => @incident.errors, :status => :unprocessable_entity } end end end I'm not really sure where to look at this point. I'm sure it's just a limitation of my current Rails skill (I don't know much). So if anyone can point me in the right direction I would be very appreciative. Please let me know if more information is needed! Thanks!

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• How to validate presence of an uploaded file in rails?

  - by brad

  I'm playing around creating a rails file uploader and have struck a problem that should have an obvious solution. How do I check that a file has been selected in my form and uploaded? Here is my new.html.erb view <h2>Upload File</h2> <% form_for(@upload_file, :url => {:action => 'save'}, :html => {:multipart => true}) do |f| %> <%= f.error_messages %> <p> <%= f.label :file -%> <%= f.file_field :upload -%> </p> <p> <%= f.label :description %> <%= f.text_field :description %> </p> <p> <%= f.label :file_type %> <%= f.select :file_type, ["XML Data"] %> </p> <p><%= f.submit 'Upload File' %></p> <% end %> and here is my upload_file.rb model class UploadFile < ActiveRecord::Base validates_presence_of :description validates_presence_of :file_type validates_presence_of :upload def upload=(upload_file_field) self.name = "#{Time.now.strftime("%Y%m%d%H%M%S")}_#{upload_file_field.original_filename}" File.open("#{RAILS_ROOT}/public/upload/#{self.name}", "wb") { |f| f.write(upload_file_field.read) } end end If I use this as shown here, the validation validates_presence_of :upload always fails and I am returned to my form with an error message. I'd be very grateful if someone could explain how to do this validation correctly, and I'd be even more grateful if they could explain why it works. Thanks.

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• Treetop: parsing single node returns nil

  - by Matchu

  I'm trying to get the basic of Treetop parsing. Here's a very simple bit of grammar so that I can say ArithmeticParser.parse('2+2').value == 4. grammar Arithmetic rule additive first:number '+' second:number { def value first.value + second.value end } end rule number [1-9] [0-9]* { def value text_value.to_i end } end end Parsing 2+2 works correctly. However, parsing 2 or 22 returns nil. What did I miss?

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• rails declarative authorization, permit all actions for controller?

  - by SooDesuNe

  using the delcarative_authorization gem for rails, is there a shortcut to allow a role access to all controller actions? privileges do # default privilege hierarchies to facilitate RESTful Rails apps privilege :manage, :includes => [:create, :read, :update, :delete] end isn't sufficient, because I have more controlling methods than just CRUD in my controllers. Something like: role :foo do has_permission_on :bar, :to =>[:all] end would be perfect, but I'm not finding it in the docs.

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• counter variable not working?

  - by jaycode

  Just like many things in rails, sometimes it works, sometimes it doesn't... Showing app/views/admin/products/_variant.html.erb where line #8 raised: undefined local variable or method `variant_counter' for #<ActionView::Base:0x107f7ae10> I only want to display variant_counter from partial _variant. This was the render caller code: <%= render :partial => '/admin/products/variant', :collection => product.variants %> The funny thing is, I have been using partial counter heaps number of times, somehow now I encountered this issue. Could anybody point me out what are there to find out what may went wrong?

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• How to test JSON result from Rails functional tests?

  - by goodwill

  As title, I want to assert my AJAX request and test the JSON output, how can I do that?

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• How do you authenticate user generated "apps" for your app?

  - by Brian Armstrong

  I'm think something like Facebook apps here. User generated pieces of code that people can write to interact with my app. I understand how an authenticated API works, but this seems a little more complicated because not only does the APP have to authenticate itself (with a regular api-key) but the USER using the app has to be authenticated somehow too, without giving the app free reign. I've been reading a bit here to see how FB does it: http://wiki.developers.facebook.com/index.php/How_Facebook_Authenticates_Your_Application And it looks like you have to pass a signature in addition to the api-key along with every call, but I'm having trouble wrapping my head around how this gets generated and used on the other end (my server). Figure there must be a simple explanation of this out there? Thanks! P.S. I'm building a Rails app if there are any applicable gems/plugins.

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• not getting a page reload when submitting a form on a page

  - by Bob Walsh

  When showing a project, the user can add a decision via a form_for and its partial. Is there some way of avoiding reloading the page and just creating the record silently? In the controller method (adddecision) I have: respond_to do |format| if @decision.save format.html { redirect_to(@project) } format.xml { head :ok } else format.html { render :action => "show" } format.xml { render :xml => decision.errors, :status => :unprocessable_entity } end I've tried redirect_to(:back) etc - still getting a page reload.

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• named_scope or find_by_sql?

  - by keruilin

  I have three models: User Award Trophy The associations are: User has many awards Trophy has many awards Award belongs to user Award belongs to trophy User has many trophies through awards Therefore, user_id is a fk in awards, and trophy_id is a fk in awards. In the Trophy model, which is an STI model, there's a trophy_type column. I want to return a list of users who have been awarded a specific trophy -- (trophy_type = 'GoldTrophy'). Users can be awarded the same trophy more than once. (I don't want distinct results.) Can I use a named_scope? How about chaining them? Or do I need to use find_by_sql? Either way, how would I code it?

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• Rails - Override primary key on has_one

  - by Ben Hall

  I have the following associations, basically I want to link via userid and not the id of the object. class Tweet < ActiveRecord::Base has_one :user_profile, :primary_key = 'userid', :foreign_key = 'twitter_userid' class UserProfile < ActiveRecord::Base belongs_to :tweet, :foreign_key = 'userid' However the following spec fails as twitter_userid is reset to the id of the object it "should have the user's twitter id set on their user profile" do t = Tweet.new(:twitter_id = 1, :status = 'Tester', :userid = 'personA', :user_profile = UserProfile.new(:twitter_userid = 'personA', :avatar = 'abc')) t.save! t.user_profile.twitter_userid.should == 'personA' end should have the user's twitter id set on their user profile expected: "personA", got: 216 (using ==) However, the following does pass: it "should return the correct avatar after being saved" do t = Tweet.new(:twitter_id = 1, :status = 'Tester', :userid = 'personA', :user_profile = UserProfile.new(:twitter_userid = 'personA', :avatar = 'abc')) t.save! t.user_profile.avatar.should == 'abc' end How can I force it to use userid and not id? Thanks Ben

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• Saving multiple objects in a single call in rails

  - by CaptnCraig

  I have a method in rails that is doing something like this: a = Foo.new("bar") a.save b = Foo.new("baz") b.save ... x = Foo.new("123", :parent_id => a.id) x.save ... z = Foo.new("zxy", :parent_id => b.id) z.save The problem is this takes longer and longer the more entities I add. I suspect this is because it has to hit the database for every record. Since they are nested, I know I can't save the children before the parents are saved, but I would like to save all of the parents at once, and then all of the children. It would be nice to do something like: a = Foo.new("bar") b = Foo.new("baz") ... saveall(a,b,...) x = Foo.new("123", :parent_id => a.id) ... z = Foo.new("zxy", :parent_id => b.id) saveall(x,...,z) That would do it all in only two database hits. Is there an easy way to do this in rails, or am I stuck doing it one at a time?

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• Passing an instance variable through RJS?

  - by Elliot

  Hey guys here is my code (roughly): books.html.erb <% @books.each do |book| %> <% @bookid = book.id %> <div id="enter_stuff"> <%= render "input", :bookid => @bookid %> </div> <%end%> _input.html.erb <% @book = Book.find_by_id(@bookid) %> <strong>your book is: <%=h @book.name %></strong> create.rjs page.replace_html :enter_stuff, :partial => 'input', :object => @bookid The problem here is that only create.js doesn't seem to work (though, if instead of passing the partial I passed "..." it does work, so I know its that there are instance variables in the partial that aren't being reset. Any ideas?) So the final question, is how do I pass an instance variable to a partial through the create.rjs file? p.s. I know I will have duplicate div IDs, I'm not worrying about that for now though. Best, Elliot

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• Git push origin master

  - by user306472

  I posted this question early yesterday, but the thread seems to have died out. For reference, see http://stackoverflow.com/questions/2619117/git-push-origin-master . Here's the low-down: I'm new to git. I just set up an account with github and I followed all their instructions flawlessly until I got to the last command of git push origin master Upon entering this command, I get the error message "fatal: No path specified. See 'man git-pull' for valid url syntax." If I type in git origin show the output I see is origin. If I type in git remote -n show the output is * remote origin URL: [email protected]: HEAD branch: (not queried) Local ref configured for 'git push' (status not queried): (matching) pushes to (matching) Please help me get to the bottom of this.

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• Running rake migrate gives Mysql error schema_migrations.frm

  - by tesmar

  I am running 5.1 on Ubuntu 10.04, and the remote server is running 5.0.51, is this a problem? Mysql::Error: Incorrect information in file: './user/schema_migrations.frm': SELECT version FROM schema_migrations

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• Using Rails, problem testing has_many relationship

  - by east

  The summary is that I've code that works when manually testing, but isn't doing what I would think it should when trying to build an automated test. Here are the details: I've two models: Payment and PaymentTranscation. class Payment ... has_many :transactions, :class_name => 'PaymentTransaction' class PaymentTranscation ... belongs_to payment The PaymentTransaction is only created in a Payment model method, like so: def pay_up ... transactions.create!(params...) ... end I've manually tested this code, inspected the database, and everything works well. The failing automated test looks like this: def test_pay_up purchase = Payment.new(...) assert purchase.save assert_equal purchase.state, :initialized.to_s assert purchase.pay_up # this should create a new PaymentTransaction... assert_equal purchase.state, :succeeded.to_s assert_equal purchase.transactions.count, 1 # FAILS HERE; transactions is an empty array end If I step through the code, it's clear that the PaymentTransaction is getting created correctly (though I can't see it in the database because everything is in a testing transaction). What I can't figure out is why transactions is returning an empty array in the test when I know a valid PaymentTransaction is getting created. Anybody have some suggestions? Thanks in advance, east

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• Rails Unit Testing with MyISAM Tables

  - by tadman

  I've got an application that requires the use of MyISAM on a few tables, but the rest are the traditional InnoDB type. The application itself is not concerned with transactions where it applies to these records, but performance is a concern. The Rails testing environment assumes the engine used is transactional, though, so when the test database is generated from the schema.rb it is imported with the same engine. Is it possible to over-ride this behaviour in a simple manner? I've resorted to an awful hack to ensure the tables are the correct type by appending this to test_helper.rb: (ActiveRecord::Base.connection.select_values("SHOW TABLES") - %w[ schema_info ]).each do |table_name| ActiveRecord::Base.connection.execute("ALTER TABLE `#{table_name}` ENGINE=InnoDB") end Is there a better way to make a MyISAM-backed model be testable?

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• alias_attribute and creating and method with the original attribute name causes a loop

  - by Tiago

  Im trying to dynamically create a method chain in one attribute in my model. By now I have this function: def create_filtered_attribute(attribute_name) alias_attribute "#{attribute_name}_without_filter", attribute_name define_method "#{attribute_name}" do filter_words(self.send("#{attribute_name}_without_filter")) end end so I receive a string with the attribute name, alias it for '*_without_filter*' (alias_method or alias_method_chain fails here, because the attribute isnt there when the class is created), and I create a new method with the attribute name, where I filter its contents. But somehow, when I call *"#{attribute_name}_without_filter"* it calls my new method (i think because the alias_attribute some how), and the program goes into a stack loop. Can someone please enlighten me on this.

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• Background job with status in rails

  - by pepernik

  Hey. I would like to upload a file and then parse it. Because parsing can take up to 10min I installed delayed_job plugin and called parsing function through send_later function. I have to mention that this is an AJAX app. Imagine that you press an AJAX button that starts upload and after that the source is imported into the database. During the process I want to show the progress bar or message (importing...) and when it completes the task status changes to done. My question is: What is the best way to check for status of the process. What would you do? My idea is to have another controller actions "status" which look into the database and provide the right status.

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