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  • Enforcing a Uniqueness Constraint in a Nested Form

    - by Euwyn
    I'm trying not to fight the defaults here and use Rails built-in support for nested attributes (from http://ryandaigle.com/articles/2009/2/1/what-s-new-in-edge-rails-nested-attributes). I'm labeling Things with Tags, and all works swell, and for each Thing I have a form with a nested field that creates a new Tag by a name. Trouble is, I need to make sure that each Tag has a unique name. Instead of creating a new Tag, if a user enters the name of one that already exists, I need to create the associate with that pre-existing Tag. How do I do this?

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  • Rexml - Parsing Data

    - by Paddy
    I have a XML File in the following format: <?xml version='1.0' encoding='UTF-8'?> <entry xmlns='http://www.w3.org/2005/Atom' xmlns:gwo='http://schemas.google.com/analytics/websiteoptimizer/2009' xmlns:app='http://www.w3.org/2007/app' xmlns:gd='http://schemas.google.com/g/2005' gd:etag='W/&quot;DUYGRX85fCp7I2A9WxFWEkQ.&quot;'><id>https://www.google.com/analytics/feeds/websiteoptimizer/experiments/1025910</id><updated>2010-05-31T02:12:04.124-07:00</updated><app:edited>2010-05-31T02:12:04.124-07:00</app:edited><title>Flow Experiment</title><link rel='gwo:goalUrl' type='text/html' href='http://cart.personallifemedia.com/dlg/download.php'/><link rel='alternate' type='text/html' href='https://www.google.com/websiteoptimizer'/><link rel='self' type='application/atom+xml' href='https://www.google.com/analytics/feeds/websiteoptimizer/experiments/1025910'/><gwo:analyticsAccountId>16334726</gwo:analyticsAccountId><gwo:autoPruneMode>None</gwo:autoPruneMode><gwo:controlScript>..... I have to parse and get the data for gd:etag and how do I do it? I was able to get the value using SimpleXML, but i wanted to achieve it in ReXML. Please do advice.

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  • format.js generate 406 Not Acceptable error

    - by Denis
    Hello, following code generate a 406 Not Acceptable error. What can be wrong with my code? def remote_create @photo = Photo.new(params[:photo]) respond_to do |format| if @photo.save # add @photo's thumbnail to last import tag format.js { render :update do |page| page.insert_html :bottom, 'polaroids' , :partial => 'polaroid', :locals => {:photo => @photo} end } else format.html end end end Started POST "/photos/remote_create" for 127.0.0.1 at 2010-03-14 14:02:08 Processing by PhotosController#remote_create as HTML Parameters: {"photo"=>{"photo"=>#<File:/var/folders/BT/BTpdsWBkF6myaI-sl3+1NU+++TI/-Tmp-/RackMultipart20100314-285-1y9eq1x-0>, "name"=>"4204497503_a0c43c561d.jpg"}} SQL (0.6ms) INSERT INTO "photos" ("created_at", "filename", "height", "name", "photo_content_type", "photo_file_name", "photo_file_size", "photo_updated_at", "size", "updated_at", "width") VALUES ('2010-03-14 13:02:08.449499', NULL, NULL, '4204497503_a0c43c561d.jpg', 'application/octet-stream', '4204497503_a0c43c561d.jpg', 136710, '2010-03-14 13:02:08.446370', NULL, '2010-03-14 13:02:08.449499', NULL) [paperclip] Saving attachments. [paperclip] saving /Users/denisjacquemin/Documents/code/projects/photos/public/system/photos/224/original/4204497503_a0c43c561d.jpg Completed in 101ms with 406

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  • map.resource, parameter restrictions

    - by Tiago
    I've a controller :platform here. I'm trying to do something like: /:platform_name/ to redirect to its show, with the parameter. Here is what I've got: map.resource :platform, :as => ':platform_name', :platform_name => /pc|ps2|ps3|wii|ds|psp|xbox-360/ It's working fine. I've other neasted resources to it, and all them are accessing. But. The problem is, I've only those platform names, but when it doesnt fine another route, it aways fall on this. if I try /whatever/, it will look for the *platform_name = whatever*. I was expecting it to fall into the map.connect ':controller/:action/:id' rule. When I did *:platform_name = /pc|ps2|ps3|wii|ds|psp|xbox-360/*, wasnt expected that this rule only apply when the regular expression is fit? how could i restrict this?

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  • DRb connecting to linux client from windows

    - by Christopher Dancy
    I have a few DRb services running on different windows machines and they can all connect and talk with each other just fine. When I put these DRb services on Linux machines and try to connect from windows nothing happens and I get a DRB:ConnError ... the service on Linux is never touched. So I did a netstat on the linux box and the service(port) were not listed anywhere even though the program is clearly running. Is there someting that I'm missing when talking to DRb services on Linux from a windows machine?

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  • Rails wiki highlight/strikethrough version differences between article versions

    - by mark
    Hi I'm wondering how to implement highlighting of changes to user edited articles on a wiki style rails project. Since articles may be fairly lengthy I'd ideally like strikethrough and highlighting, similar to github and wikipedia for example. Despite searching around the net I've not really come up with much, apart from instiki which is a complete wiki application. Thanks in advance for any advice.

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  • How to perform Rails model validation checks within model but outside of filters using ledermann-rails-settings and extensions

    - by user1277160
    Background I'm using ledermann-rails-settings (https://github.com/ledermann/rails-settings) on a Rails 2/3 project to extend virtually the model with certain attributes that don't necessarily need to be placed into the DB in a wide table and it's working out swimmingly for our needs. An additional reason I chose this Gem is because of the post How to create a form for the rails-settings plugin which ties ledermann-rails-settings more closely to the model for the purpose of clean form_for usage for administrator GUI support. It's a perfect solution for addressing form_for support although... Something that I'm running into now though is properly validating the dynamic getters/setters before being passed to the ledermann-rails-settings module. At the moment they are saved immediately, regardless if the model validation has actually fired - I can see through script/console that validation errors are being raised. Example For instance I would like to validate that the attribute :foo is within the range of 0..100 for decimal usage (or even a regex). I've found that with the previous post that I can use standard Rails validators (surprise, surprise) but I want to halt on actually saving any values until those are addressed - ensure that the user of the GUI has given 61.43 as a numerical value. The following code has been borrowed from the quoted post. class User < ActiveRecord::Base has_settings validates_inclusion_of :foo, :in => 0..100 def self.settings_attr_accessor(*args) >>SOME SORT OF UNLESS MODEL.VALID? CHECK HERE args.each do |method_name| eval " def #{method_name} self.settings.send(:#{method_name}) end def #{method_name}=(value) self.settings.send(:#{method_name}=, value) end " end >>END UNLESS end settings_attr_accessor :foo end Anyone have any thoughts here on pulling the state of the model at this point outside of having to put this into a before filter? The goal here is to be able to use the standard validations and avoid rolling custom validation checks for each new settings_attr_accessor that is added. Thanks!

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  • Ajax Push Engine

    - by gkrdvl
    Hi all, are there anyone hear about APE (Ajax Push Engine) before ? I'm building Rails application and trying to create group chat with this APE realtime engine, the problem is how to make Rails communicate with APE Server ? Are there any tutorial or reference on working APE with Rails ?

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  • intelligent thin start with port alias for bash

    - by seaofclouds
    i would like a single alias (ts) which starts my local development server. the script should test for an open port starting at 3000 and use the first available port. additionally, some sites require a rackup file, making -R config.ru necessary. this script should check the current directory for the config.ru file and add that to the alias if present. currently, to start my local development environment, i run: alias ts="thin -R config.ru -p 3000 start" often, i need to run several servers to test different sites, so i've created additional aliases: alias ts1="thin -R config.ru -p 3001 start"

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  • split html text in 2 paragraphs

    - by Luca Romagnoli
    hi i have a html text like this: aaa dafjsld dslajfk òsal asfòljd <a href="ciao.com">aa aa</a> adsfsadfsadfs i want to split it in 2 paragraphs. but i don't want to generate this situation: <p>aaa dafjsld dslajfk òsal asfòljd <a href="ciao.com">aa</p><p> aa</a> adsfsadfsadfs</p> how can i check if the split involves any tags and avoid it? thanks

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  • Fastest way to deploy rails apps with Passenger

    - by yuval
    I am working on a Dreamhost server with Rails 2.3.5. Every time I make changes to a site, I have to ssh into the site, remove all the files, upload a zip file containing all the new files for the site, unzip that file, migrate the database, and go. Something tells me there's a faster way to deploy rails apps. I am using mac Time Machine to keep track of different versions of my applications. I know git tracks files, but I don't really know how to work with it to deploy my applications, since passenger takes care of all the magic for me. What would be a faster way to deploy my applications (and avoid the downtime associated with my method when I delete all files on the server)? Thanks!

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  • rails paperclip multi upload

    - by mattherick
    hello! has somebody from you followed this tutorial? link text I really don´t now why, but I got following fault, when I went through the tutorial word by word: @album[photo_attributes]‘ is not allowed as an instance variable name somebody an idea why?

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  • Keeping dates in order when using date_select and discarding year in Rails?

    - by MikeH
    My app has users who have seasonal products. When a user selects a product, we allow him to also select the product's season. We accomplish this by letting him select a start date and an end date for each product. We're using date_select to generate two sets of drop-downs: one for the start date and one for the end date. Including years doesn't make sense for our model. So we're using the option: discard_year => true To explain our problem, consider that our products are apples. Vendor X carries apples every year from September to January. Years are irrelevant here, and that's why we're using discard_year => true. However, while the specific years are irrelevant, the relative point in time from the start date to the end date is relevant. This is where our problem arises. When you use discard_year => true, Rails does set a year in the database, it just doesn't appear in the views. Rails sets all the years to 0001 in our app. Going back to our apple example, this means that the database now thinks the user has selected September 0001 to January 0001. This is a problem for us for a number of reasons. To solve this, the logic that I need to implement is the following: - If season_start month/date is before season_end month/date, then standard Rails approach is fine. - But, if season_start month/date is AFTER season_end month/date, then I need to dynamically update the database field such that the year for season_end is equal to the year for season_start + 1. My best guess is that I would create a custom method that runs as an after_save or after_update in my products model. But I'm not really sure how to do this. Ideas? Anybody ever had this issue? Thanks!

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  • Rails: How to produce 404 or redirect upon undesired url exploitation?

    - by Baby Diego
    I want to hide the urls for editing users and their profiles behind safer and meaningful urls. For instance, I want /user/13/edit to be /settings/account and /user/13/profile/edit to be /settings/profile. I managed to achieve that, but for that I had to load the user information from the current_user bit from the session. Like so: # users_controller def edit @user = current_user end # profiles_controller def edit @user = current_user @profile = @user.profile end But now, since I can't compare @user.id from the params with the current_user in the session, how can I stop the old urls (/user/13/edit and /user/13/profile/edit) from being exploitable? They always load the forms for the current user, so there's no harm done, but I'd be more comfortable if they just produced a 404 error or something. Thanks in advance.

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  • How to let users post links/images to Facebook, Twitter, Buzz etc... from a Rails based website?

    - by wgpubs
    I'd like to offer users the ability to post images / links to articles from my web application to Facebook, Twitter, Buzz and any other social network. A perfect example of the functionality I'm trying to replicate is mashable.com ... where each social network is represented by an icon that a) shows the number of shares AND b) allows users to click on it to post to that specific network. Don't know if it matters ... but the site is built using RoR. Thanks

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  • Random record in ActiveRecord

    - by astrofoo
    I'm in need of getting a random record from a table via ActiveRecord. I've followed the example from Jamis Buck from 2006. However, I've also come across another way via a Google search (can't attribute with a link due to new user restrictions): rand_id = rand(Model.count) rand_record = Model.first(:conditions => [ "id >= ?", rand_id]) I'm curious how others on here have done it or if anyone knows what way would be more efficient.

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  • Rails: Easy way to add more than one flash[:notice] at a time.

    - by Josh Pinter
    I thought every time you do a flash[:notice]="Message" it would add it to the array which would then get displayed during the view but the following just keeps the last flash: flash[:notice] = "Message 1" flash[:notice] = "Message 2" Now I realize it's just a simple hash with a key (I think :)) but is there a better way to do multiple flashes than the following: flash[:notice] = "Message 1<br />" flash[:notice] = "Message 2" Thanks. Josh

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  • rails solr search limit total search results / get fixed number of results

    - by kLeos
    I'm trying to perform a search, order the results randomly, and only return a number of results, not all matches. Something like limit(2) I've tried using the Solr param 'rows' but that doesn't seem to do anything: @featured_articles = Article.search do with(:is_featured, true) order_by :random adjust_solr_params do |params| params[:rows] = 2 end end @featured_articles.total should be 2, but it returns more than 2 How can I get a randomized fixed number of results?

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  • Rails migration won't run, no error thrown

    - by kouak
    Here's a simple migration I'd like to run : class AddTimeOfRevisionToBrandWikis < ActiveRecord::Migration def self.up add_column :brand_wikis, :time_of_revision, :datetime end def self.down remove_column :brand_wikis, :time_of_revision end end Here's what I get when I try to run it : $ rake db:migrate (in /Users/kouak/Documents/workspace/wtb) You have 1 pending migrations: 20100404115341 AddTimeOfRevisionToBrandWikis Run "rake db:migrate" to update your database then try again. What's wrong with rake db:migrate ?

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  • How do I avoid nesting forms when offering inline editing of lists with checkboxes for mass updates.

    - by adam
    A lot of sites offer the ability to edit lists of items inline as well as allowing multiple items to be selected via checkboxes and have an action performed all at once e.g. delete, mark as spam etc. But how do you implement this without violating html rules. I need one form for the checkboxes with individual submit_tags for the mass actions. But after a user clicks on an item in the list, another form via Ajax will be inserted within the checkbox form. How do I avoid doing this? I'm using rails and jQuery.

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