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  • Problem with displaying content when using RJS

    - by Shreyas Satish
    I'm quite sure this is a silly error but I'm unable to spot it. Please help me out on this. This is my controller code def filter_by_content @articles = Article.find(:all) end My RJS (filter_by_content.rjs) update_page do |page| page.replace_html 'articles', :partial => 'main/filtered', :object => @articles end My Partial 'filtered' <div id = "articles"> <% if @articles %> <% @articles.each do |article| %> <%= article.title %> <% end %> <% end %> </div> I checked my server, and the articles are sure getting fetched but the problem is with displaying them. Thanks !

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  • Is there a way to create a step chart using the Google Charts API?

    - by Nathan
    I'd like to use the google charts API to create a step chart for my Rails application. Preferably using the annotated timeline Google has (since it has a nice wrapper plugin for rails): http://code.google.com/apis/visualization/documentation/gallery/annotatedtimeline.html However, there doesn't seem to be a way to create a step chart using the annotated timeline or any other chart in the Google API. I'm looking to make a plot like this: If there is no way to do this with the google API, is there an alternative graphing library that can handle such a task?

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  • How can I get Rails to interpret a text field as a datetime

    - by doctororange
    My database has a datetime field, and I want to be able to create new entries. Obviously the Rails datetime_select helper isn't the most user friendly thing to have in your form. I'd rather have a text field for the datetime (or one for the date, and one for the time) and interpret the inputs like PHP strtotime can. I might just be searching the wrong keywords. Surely this has been discussed in great depth somewhere. Thanks :0)

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  • Strange routing

    - by astropanic
    How I can setup my rails app to respond to such urls: http://mydomain.com/white-halogene-lamp http://mydomain.com/children-lamps http://mydomain.com/contact-form The first one should link to my products controller, and show my product with this name The second one should link to my categories controller, and show the category with this name The third one should link to my sites controller, and show the site with this title. All three models (product, category, site) have a method to_seo, giving the mentioned above urls (after the slash) I know it's not the restful way, but please don't disuss here, it is wrong approach or not, that's not the question. The question is how to accomplish this weird routing ? I know we have catch all routes, but how I can tell rails to use different controllers on different urls in the catch all route ? Or have You an better idea ? I would avoid redirects to other urls.

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  • executing named_scoped only when there are present params

    - by Luca Romagnoli
    Hi have a model like this: class EventDate < ActiveRecord::Base belongs_to :event named_scope :named, lambda { | name | { :joins => { :event => :core}, :conditions => ["name like ?", "%#{ name }%"] }} named_scope :date_range, lambda { | start, length | { :conditions => ["day >= ? AND day <= ?", start, date + (length || 30) ] }} it works correctly if i launch name = "ba" start = Date.today EventDate.named(name).date_range(start , start + 2) But if the name or the start is nil i don't want execute the named_scope like name = nil EventDate.named(name).date_range(start , start + 2) Is possible to set a condition inner the named_scope ? thanks

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  • date comparisons in Rails

    - by aressidi
    Hi there, I'm having trouble with a date comparison in a named scope. I'm trying to determine if an event is current based on its start and end date. Here's the named scope I'm using which kind of works, though not for events that have the same start and end date. named_scope :date_current, :conditions => ["Date(start_date) <= ? AND Date(end_date) >= ?", Time.now, Time.now] This returns the following record, though it should return two records, not one... >> Event.date_current => [#<Event id: 2161, start_date: "2010-02-15 00:00:00", end_date: "2010-02-21 00:00:00", ...] What it's not returning is this as well >> Event.find(:last) => #<Event id: 2671, start_date: "2010-02-16 00:00:00", end_date: "2010-02-16 00:00:00", ...> The server time seems to be in UTC and I presume that the entries are being stored in the DB in UTC. Any ideas as to what I'm doing wrong or what to try? Thanks!

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  • Rmagick Fails To Manipulate PNG

    - by Tyler DeWitt
    Following the Railscast episode on CarrierWave: I installed ImageMagick on Mountain Lion via homebrew, exported the following path: export PKG_CONFIG_PATH="/opt/local/lib/pkgconfig:$PKG_CONFIG_PATH" Symlinked the following: ln -s /usr/local/include/ImageMagick/wand /usr/local/include/wand ln -s /usr/local/include/ImageMagick/magick /usr/local/include/magick And installed rmagick via bundler. In my uploader I have the following: include CarrierWave::RMagick version :thumb do process :resize_to_limit => [85, 85] end Which creates thumbnails just fine, but not for png files. I've tried a handful of png images and it always fails with this error: Failed to manipulate with rmagick, maybe it is not an image? Original Error: no decode delegate for this image format `<path>/public/uploads/tmp/20121022-2133-9885-3333/thumb_cat_vs_internet.png' @ error/constitute.c/ReadImage/544 jpeg images work just fine. EDIT identify -list format | grep -i png returns nothing, indicating the png decode delegate is probably missing. Now what?

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  • ActiveMerchant Integration usage example?

    - by giorgian
    Where can I find a complete example of ActiveMerchant Integrations usage? I can see tons of examples of Gateways' usage, but couldn't see how an Integration should be used (e.g. what do you do in the return_url and cancel_return_url controller actions?)

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  • How would I detect horizontal-black lines using ImageMagick?

    - by Zando
    So I have what is essentially a spreadsheet in TIFF format. There is some uniformity to it...for example, all the column widths are the same. I want to de-limit this sheet by those known-column widths and basically create lots of little graphic files, one for each cell, and run OCR on them and store it into a database. The problem is that the horizontal lines are not all the same height, so I need to use some kind of graphics library command to check if every pixel across is the same color (i.e. black). And if so, then I know I've reached the height-delimiter for a cell. How would I go about doing that? (I'm using RMagick)

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  • What if I have an API method and a contoller/view method with the same name in RoR?

    - by Chad Johnson
    Suppose I want to be able to view a list of products on my site by going to /product/list. Great. So this uses my 'list' view and outputs some HTML which my web browser will render. But now suppose I want to provide a REST API to my client where they can get a list of their products. So I suppose I'd have them authenticate with oAuth and then they'd call /product/list which would return a JSON array of their products. But like I said earlier, /product/list displays an HTML web page. So, I have a conflict. What is normal practice as far as providing APIs in Rails? Should I have a subdirectory, 'api', in /app/controller, and another 'product' controller? So my client would go to /api/product/list to get a list of their products? I'm a bit new to RoR, so I don't have the best grasp of the REST functionality yet, but hopefully my question makes sense.

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  • ActionView::MissingTemplate after Rails 3.1 upgrade

    - by jonallard
    After upgrading to Rails 3.1.0 and following David Rice's instructions, all of my controllers strangely can't find their views anymore. # rails s # Started GET "/units" for 127.0.0.1 at 2011-09-04 07:52:23 -0400 Unit Load (0.1ms) SELECT "units".* FROM "units" ActionView::MissingTemplate (Missing template units/index, application/index with {:handlers=>[:erb, :builder], :formats=>[:html], :locale=>[:en, :en]}. Searched in: ): app/controllers/units_controller.rb:9:in `index' units_controller.rb: # GET /units # GET /units.xml def index @units = Unit.all respond_to do |format| format.html # index.html.erb format.xml { render :xml => @units } end end Of course, the view is there (/app/views/units/index.html.erb; it was working before the upgrade). I feel this is a stupid error, what am I missing here?

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  • Remove a tag type from the view

    - by user284194
    I have an index view that lists all of the tags for my Entry and Message models. I would like to only show the tags for Entries in this view. I'm using acts-as-taggable-on. Tags Controller: def index @letter = params[:letter].blank? ? 'a' : params[:letter] @tagged_entries = Tagging.find_all_by_taggable_type('Entry').map(&:taggable) #@tagged_messages = Tagging.find_all_by_taggable_type('Message') #@tagged_messages = Tagging.find_all_by_taggable_type('Message').map(&:taggable) @title = "Tags" if params[:letter] == '#' @data = Tag.find(@tagged_entries, :conditions => ["name REGEXP ?", "^[^a-z]"], :order => 'name', :select => "id, name") else @data = Tag.find(@tagged_entries, :conditions => ["name LIKE ?", "#{params[:letter]}%"], :order => 'name', :select => "id, name") end respond_to do |format| flash[:notice] = 'We are currently in Beta. You may experience errors.' format.html end end tags#index: <% @data.each do |t| %> <div class="tag"><%= link_to t.name.titleize, tag_path(t) %></div> <% end %> I want to show only the taggable type 'Entry' in the view. Any ideas? Thank you for reading my question.

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  • add method to reflection-object and named-scopes

    - by toy
    I Like to add a method to my has_many relation in the way that it is applyed on the relation object. I got an Order wich :has_many line_items I like to write things like order.line_items.calculate_total # returns the sum of line_items this I could do with: :has_many line_items do def calculate_total ... end end but this would not be applyed to named_scopes like payalbes_only: order.line_items.payables_only.calculate_total here calculate total would receive all line_items of order and not the scoped ones from payables_only-scope. My log tells me that the paybles_only scope is even not applied to the sql.

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  • How to set RAILS_ENV variable when running Rails tests?

    - by Jason
    In both my environment.rb and test_helper.rb files I have: ENV["RAILS_ENV"] = "development" I have one functional test written, however when I run it, the script tries to connect to my database using the "test" configuration settings which are in the database.ymal file & won't connect the the database. How can I run my tests using the "development" environment settings?

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  • Rails - CSV export: prompt for file download

    - by Pierre
    Hello, I want to give my users the ability to export a table to CSV. So in my controller, I've added on top of the file: respond_to :html, :js, :csv I'm also setting the headers if the requested format is csv: if params[:format] == 'csv' generate_csv_headers("negotiations-#{Time.now.strftime("%Y%m%d")}") end Code for generate_csv_headers(in application_controller) is: def generate_csv_headers(filename) headers.merge!({ 'Cache-Control' => 'must-revalidate, post-check=0, pre-check=0', 'Content-Type' => 'text/csv', 'Content-Disposition' => "attachment; filename=\"#{filename}\"", 'Content-Transfer-Encoding' => 'binary' }) end I've also created a view named index.csv.erb to generate my file: <%- headers = ["Id", "Name"] -%> <%= CSV.generate_line headers %> <%- @negotiations.each do |n| -%> <%- row = [ n.id, n.name ] -%> <%= CSV.generate_line row %> <%- end -%> I don't have any error, but it simply displays the content of the CSV file, while I'd expect a prompt from the browser to download the file. I've read a lot, but could not find anything that'd work. Do you have an idea? thanks, p.

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  • How do I model teams and gameplay in this scorekeeping application?

    - by Eric Hill
    I'm writing a scorekeeping application for card game that has a few possibly-interesting constraints. The application accepts user registrations for players, then lets them check-in to a particular game (modeled as Event). After the final player registers, the app should generate teams, singles or doubles, depending on the preference of the person running the game and some validations (can't do doubles if there's an odd number checked in). There are @event.teams.count rounds in the game. To sum up: An event consists of `@event.teams.count` rounds; Teams can have 1 or more players Events have n or n/2 teams (depending on whether it's singles or doubles) Users will be members of different teams at different events Currently I have a rat's nest of associations: class User < ActiveRecord::Base has_many :teams, :through => :players has_many :events, :through => :teams class Event < ActiveRecord::Base has_many :rounds has_many :teams has_many :players, :through => :teams class Player < ActiveRecord::Base belongs_to :user belongs_to :team end class Team < ActiveRecord::Base has_many :players belongs_to :event end class Round < ActiveRecord::Base belongs_to :event belongs_to :user end The sticky part is team generation. I have basically a "start game" button that should freeze the registrations and pair up teams either singly or doubly, and render to Round#new so that the first (and subsequent) matches can be scored. Currently I'm implementing this as a check on Round#new that calls Event#generate_teams and displays the view: # Event#generate_teams def generate_teams # User has_many :events, :through => :registrations # self.doubles is a boolean denoting 2 players per team registrations.in_groups_of(self.doubles ? 2 : 1, nil).each do |side| self.teams << Player.create(self,side) end end Which doesn't work. Should there maybe be a Game model that ties everything together rather than (my current method) defining the game as an abstraction via the relationships between Events, Users, and Rounds (and Teams and Players and etc.)? My head is swimming.

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  • Trouble sending html in email with Pony gem

    - by Gearóid
    Hi, I've found this gem to be a great and easy way to send mail but I can't seem to send any html in it. If I write the following: Pony.mail( :to => message[:to], :from => @account[:from], :subject => message[:subject], :content_type => 'text/html', :html_body => "<h1>hey there!</h1>", :via => :smtp, :smtp => { :host => MY_HOST, :port => PORT, :auth => AUTH, :user => MY_USER, :password => MY_PASSWORD, :tls => true } ) The code above send a mail but the message appears to be empty in gmail. Any help would be greatly appreciated on this. Thanks.

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  • Associating Models with Polymorphic

    - by Josh Crowder
    I am trying to associate Contacts with Classes but as two different types. Current_classes and Interested_classes. I know I need to enable polymorphic but I am not sure as to where it needs to be enabled. This is what I have at the moment class CreateClasses < ActiveRecord::Migration def self.up create_table :classes do |t| t.string :class_type t.string :class_name t.string :date t.timestamps end end def self.down drop_table :classes end end class CreateContactsInterestedClassesJoin < ActiveRecord::Migration def self.up create_table 'contacts_interested_classes', :id => false do |t| t.column 'class_id', :integer t.column 'contact_id', :integer end end def self.down drop_table 'contacts_interested_classes' end end class CreateContactsCurrentClassesJoin < ActiveRecord::Migration def self.up create_table 'contacts_current_classes', :id => false do |t| t.column 'class_id', :integer t.column 'contact_id', :integer end end def self.down drop_table 'contacts_current_classes' end end And then inside of my Contacts Model I want to have something like this. class Contact < ActiveRecord::Base has_and_belongs_to_many :classes, :join_table => "contacts_interested_classes", :foreign_key => "class_id" :as => 'interested_classes' has_and_belongs_to_many :classes, :join_table => "contacts_current_classes", :foreign_key => "class_id" :as => 'current_classes' end What am I doing wrong?

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  • Invoking external shell application through RubyCocoa

    - by Shyam
    Hi, How would I invoke an external application through the RubyCocoa bridge? I read something about NSTask, yet I have no idea how this should be translated in RubyCocoa. My goal is to have an IB_action to trigger a method which will run a terminal application with some parameters, i.e. ls -p $mydir, where mydir comes from an IB_outlet such as an Textfield. Any directions or help would be greatly appreciated!

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  • 'script/console test' with spork and rspec not loading the whole environment?

    - by TheDeeno
    I'm trying to load up console to interact with some of my rspec mocking helpers. I expected that running script/console test would load an env similar to when I run spec. However, this doesn't appear to be the case. It looks like spec_helper is never loaded. Or, if it is, it's not actually running through the logic because spork has polluted it a bit. In short, is there a quick and easy way to get an interactive rspec party going?

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