Search Results

Search found 12686 results on 508 pages for 'ruby on rails3 beta'.

Page 285/508 | < Previous Page | 281 282 283 284 285 286 287 288 289 290 291 292 | Next Page >

Override transparency color when converting transparent PNG to JPG

- by Alexander Malfait

I'm using Dragonfly to generate thumbnail images in a Rails app. I'm serving all picture images as JPG's. Now the client is uploading transparent PNG files, like this one: http://www.ibanez.co.jp/products/images/eg2010/ART120_TRF_12_02.png Dragonfly uses RMagick to convert these images to JPG. The problem is that it converts the PNG images to JPG with a black background, and my site's design requires a white background. I've tried to override it like this: encoded_image = Magick::Image.from_blob(image.data).first if encoded_image.format.downcase == format image # do nothing else encoded_image.format = format encoded_image.background_color = "white" encoded_image.transparent_color = "white" encoded_image.to_blob end But the produced JPG images still contain a black background. Does anyone know how to beat RMagick into using a white background when converting the transparent layer? I know I could just serve as PNG, but then the images are 10 times as large, and the site is already pretty bandwidth heavy.

Read the article
Workling processes multiplying uncontrolably

- by adam

Hello there. We have a rails app running on passenger and we background process some tasks using a combination of RabbitMQ and Workling. The workling's worker process is started using the script/workling_client command. There is always only one worker process started, and the script/workling_client has a :multiple => false options, thus allowing only one instance. But sometimes, under mysterious circumstances which I haven't been able to track down, more worklings spawn up. If I let the system run for some time, more and more worklings appear. I'm not sure if these rogue worklings cause any problems, but it is still unsettling not to know why is it happening. We are using Monit to monitor the workling process. So if it dies, it will spawn it up again. But this still does not explain how come there are suddenly more than one of them. So my question is: does anyone know what can be cause of this and how to make it stop? Is it possible that workling sometimes dies by itself, without deleting it's pid file? Could there be something wrong with the Daemons gem workling_client is build upon?

Read the article
problems selecting a mutliple select value from database in Rails

- by Ramy

From inside of a form_for in rails, I'm inserting multiple select values into the database, like this: <div class="new-partner-form"> <%= form_for [:admin, matching_profile.partner, matching_profile], :html => {:id => "edit_profile", :multipart => true} do |f| %> <%= f.submit "Submit", :class => "hidden" %> <div class="rounded-block quarter-wide radio-group"> <h4>Exclude customers from source:</h4> <%= f.select :source, User.select(:source).group(:source).order(:source).map {|u| [u.source,u.source]}, {:include_blank => false}, {:multiple => true} %> <%= f.error_message_on :source %> </div> I'm then trying to pull the value from the database like this: def does_not_contain_source(matching_profiles) Expression.select(matching_profiles, :source) do |keyword| Rails.logger.info("Keyword is : " + keyword) @customer_source_tokenizer ||= Tokenizer.new(User.select(:source).where("id = ?", self.owner_id).map {|u| u.source}[0]) #User.select("source").where("id = ?", self.owner_id).to_s) @customer_source_tokenizer.divergent?(keyword) end end but getting this: ExpressionErrors: Bad syntax: --- - "" - B - "" this is what the value is in the database but it seems to choke when i access it this way. What's the right way to do this?

Read the article
Rails 4, not saving @user.save when registering new user

- by Yuichi

When I try to register an user, it does not give me any error but just cannot save the user. I don't have attr_accessible. I'm not sure what I am missing. Please help me. user.rb class User < ActiveRecord::Base has_secure_password validates :email, presence: true, uniqueness: true, format: { with: /\A([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})\Z/i } validates :password, presence: true, length: {minimum: 6} validates :nickname, presence: true, uniqueness: true end users_controller.rb class UsersController < ApplicationController def new @user = User.new end def create @user = User.new(user_params) # Not saving @user ... if @user.save flash[:success] = "Successfully registered" redirect_to videos_path else flash[:error] = "Cannot create an user, check the input and try again" render :new end end private def user_params params.require(:user).permit(:email, :password, :nickname) end end Log: Processing by UsersController#create as HTML Parameters: {"utf8"=>"?", "authenticity_token"=>"x5OqMgarqMFj17dVSuA8tVueg1dncS3YtkCfMzMpOUE=", "user"=>{"email"=>"[email protected]", "password"=>"[FILTERED]", "nickname"=>"example"}, "commit"=>"Register"} (0.1ms) begin transaction User Exists (0.2ms) SELECT 1 AS one FROM "users" WHERE "users"."email" = '[email protected]' LIMIT 1 User Exists (0.1ms) SELECT 1 AS one FROM "users" WHERE "users"."nickname" = 'example' LIMIT 1 (0.1ms) rollback transaction

Read the article
Error in releasing gem

- by akhil

Guys i am using jeweler to create a gem . I have successfully written my code and pushed it to github and my git status is clean . Now when i want to release my gem i did 'rake release' it is creating my gem .... but its is not releasing to rubyforge . and i end up in the following error Committing trisulrp.gemspec Pushing master to origin Tagging v1.2.2 Pushing v1.2.2 to origin Generated: trisulrp.gemspec trisulrp.gemspec is valid. WARNING: no rubyforge_project specified Successfully built RubyGem Name: trisulrp Version: 1.2.2 File: trisulrp-1.2.2.gem rake aborted! Permission denied - (./trisulrp-1.2.2.gem, ./pkg/trisulrp-1.2.2.gem) I don kno where am goin wrong .......

Read the article
Redirecting users after destroy

- by mathee

I have 3 models: Questions, Answers, and Profiles (I know, it should be called "Users"). When you view a question Q, I query the database for the answers to Q. (They are linked by id.) In the view, the current user has the option to delete his answer by clicking on the destroy link displayed next to his answer: %table %tr %td Answers: - @answers.each do |a| %tr %td - @provider = Profile.find(a.provider) %i #{h @provider.username} said: %br #{h a.description} %td = link_to 'View full answer', a %td - if a.provider == @profile.id #{link_to 'Delete my answer', a, :confirm => 'Are you sure?', :method => :delete} The problem is that when the user clicks on the destroy link, it redirects to the /answers/index. I want it to redirect to /questions/Q. What's the best way to do this? I know that there's a redirect_to method, but I don't know how to implement it when I want to redirect to an action for a different controller. It also needs to remember the question from which the answer is being deleted. I tried passing something like :question_id in link_to as: #{link_to 'Delete my answer', a, :confirm => 'Are you sure?', :question_id => @question.id, :method => :delete} In AnswersController#destroy: def destroy @answer = Answer.find(params[:id]) @answer.destroy respond_to do |format| format.html { redirect_to(answers_url) } format.xml { head :ok } end @question = Question.find(params[:question_id]) redirect_to question_path(@question) end The :question_id information is not passed to the destroy method, so I get this error: Couldn't find Question without an ID To confirm, I added a puts call before Question.find, and it returned nil.

Read the article
Location of Embedly (JQuery-Preview) Results

- by user749798

Embedly/Jquery-Preview has been fantastic. However, I'm trying to change the location of the preview result, and having trouble. Right now, the result appears right below the input field...but I'd rather have it in a separate part of the page. Is there a way to do this? I've tried changing the location of the selector and loading divs, but that hasn't helped. It seems to ignore those divs and put it right below the submit button. Below is my code: <form accept-charset="UTF-8" action="private" class="new_comment" data-remote="true" id="new_comment" method="post"> <input class="photo_comm" id="comment_comment" name="comment[comment]" placeholder="add a comment or link..." size="30" type="text" /><span type="text" id="counter">1000</span> <input class="btn btn-primary btn-mini" data-disable-with="Submitting..." name="commit" type="submit" value="Post" /> </form>  <div class="loading"> <img src='http://embedly.github.com/jquery-preview/images/loading-rectangle.gif'> </div>  <div class="selector"></div> $('#comment_comment').preview({ key:'60f1dcdf3258476794784148a6eb65e7', // Sign up for a key: http://embed.ly/pricing selector : {type:'rich'}, preview : { submit : function(e, data){ e.preventDefault(); $.ajax({ dataType: 'script', url: this.form.attr('action'), type: 'POST', data: data }); }, }, autoplay : 0, maxwidth : 400, display : {display : 'rich'} });

Read the article
Dynamic select menu Rails, Javascript HABTM

- by Jack

Hi, I am following a tutorial in one of Ryan Bates' Railscasts here. Basically I want a form where there are 2 drop down menus, the contents of one are dependent on the other. I have Years and Courses, where Years HABMT Courses and Courses HABTM Years. In the tutorial, the javascript is as follows: var states = new Array(); <% for state in @states -%> states.push(new Array(<%= state.country_id %>, '<%=h state.name %>', <%= state.id %>)); <% end -%> function countrySelected() { country_id = $('person_country_id').getValue(); options = $('person_state_id').options; options.length = 1; states.each(function(state) { if (state[0] == country_id) { options[options.length] = new Option(state[1], state[2]); } }); if (options.length == 1) { $('state_field').hide(); } else { $('state_field').show(); } } document.observe('dom:loaded', function() { countrySelected(); $('person_country_id').observe('change', countrySelected); }); Where I guess country has many states and state belongs to country. I think what I need to do is edit the first for statement to somehow loop through all of the courses for each year_id, but don't know how to do this. Any ideas? Thanks

Read the article
rails check_box_tag value is NULL

- by looloobs

Hi I am not sure why I am having this problem, maybe I am using the check_box_tag incorrectly. I have a form that is used to send an email message. You are supposed to be able to choose one or more boxes that represent different groups of people. <%= check_box_tag (:bcc_email, value = @spouses) %> <%= f.label :bcc_email, "Company Spouses" %><br /> <%= check_box_tag (:bcc_email, value = @soldiers) %> <%= f.label :bcc_email, "Company Soldiers" %><br /> The values are an array of email addresses. Those work fine, I have had them functioning as drop down menus for sometime. When I look at the HTML page source the values are there, they are just not being passed along with the create method. Any ideas?

Read the article
Create calendardateselect from javascript

- by 99miles

Not sure why I can't figure this out. When a user makes a selection, a javascript method is called, at which point I want to add a calendardateselect to an existing div tag from the javascript. According to the docs, it seems like this should work: var a = new CalendarDateSelect( document.getElementById("date_area"), {embedded:true, year_range:10} ); $('date_area').insert(a); ... or maybe this.... var newScript = document.createElement('script'); newScript.type = 'text/javascript'; var tn = document.createTextNode("new CalendarDateSelect( $(this).previous() )"); newScript.appendChild(tn); $('date_area').insert(newScript); http://code.google.com/p/calendardateselect/wiki/JavascriptDocumentation But neither of them are working. I feel like I've tried everything. Ideas?

Read the article
Rails, Clearance, using User ID after logging in?

- by Elliot

I'm using clearance (http://wiki.github.com/thoughtbot/clearance) for authentication in my rails app. But I'm trying to figure out how to grab the user's ID in a view after logging in. Any ideas?

Read the article
Using STI path with same controller

- by TenJack

I am using STI and am wondering, do I have to have a separate controller for each model? I have a situation where I only use the create and edit actions for one model in the STI relationship, but I get an 'undefined method' error if I try to do a form for. More specifically, I have two models that inherit from List: class RegularList < List class OtherList < List and I have a lists controller that handles these actions, but I only create new models with RegularList using forms. i.e. the only situation where I use a form_for to create a new List object is with RegularList. What I would like to do is something like: class ListsController < ApplicationController def new @list = RegularList.new end otherwise the route for creating a new list looks like regular_list/new but I would like it to just be list/new. Thoughts?

Read the article
RDoc template customization

- by ximus

Hi, how can I change my default RDoc template for my gem environment. I'd like my gem server to look like this RDoc: http://getcloudkit.com/api/ and I've seen that design around so this shouldn't be so difficult.

Read the article
Polymorphic :has_many, :through as module in Rails 3.1 plugin

- by JohnMetta

I've search everywhere for a pointer to this, but can't find one. Basically, I want to do what everyone else wants to do when they create a polymorphic relationship in a :has_many, :through way… but I want to do it in a module. I keep getting stuck and think I must be overlooking something simple. To wit: module ActsPermissive module PermissiveUser def self.included(base) base.extend ClassMethods end module ClassMethods def acts_permissive has_many :ownables has_many :owned_circles, :through => :ownables end end end class PermissiveCircle < ActiveRecord::Base belongs_to :ownable, :polymorphic => true end end With a migration that looks like this: create_table :permissive_circles do |t| t.string :ownable_type t.integer :ownable_id t.timestamps end The idea, of course, is that whatever loads acts_permissive will be able to have a list of circles that it owns. For simple tests, I have it "should have a list of circles" do user = Factory :user user.owned_circles.should be_an_instance_of Array end which fails with: Failure/Error: @user.circles.should be_an_instance_of Array NameError: uninitialized constant User::Ownable I've tried: using :class_name => 'ActsPermissive::PermissiveCircle' on the has_many :ownables line, which fails with: Failure/Error: @user.circles.should be_an_instance_of Array ActiveRecord::HasManyThroughSourceAssociationNotFoundError: Could not find the source association(s) :owned_circle or :owned_circles in model ActsPermissive::PermissiveCircle. Try 'has_many :owned_circles, :through => :ownables, :source => <name>'. Is it one of :ownable? while following the suggestion and setting :source => :ownable fails with Failure/Error: @user.circles.should be_an_instance_of Array ActiveRecord::HasManyThroughAssociationPolymorphicSourceError: Cannot have a has_many :through association 'User#owned_circles' on the polymorphic object 'Ownable#ownable' Which seems to suggest that doing things with a non-polymorphic-through is necessary. So I added a circle_owner class similar to the setup here: module ActsPermissive class CircleOwner < ActiveRecord::Base belongs_to :permissive_circle belongs_to :ownable, :polymorphic => true end module PermissiveUser def self.included(base) base.extend ClassMethods end module ClassMethods def acts_permissive has_many :circle_owners, :as => :ownable has_many :circles, :through => :circle_owners, :source => :ownable, :class_name => 'ActsPermissive::PermissiveCircle' end end class PermissiveCircle < ActiveRecord::Base has_many :circle_owners end end With a migration: create_table :permissive_circles do |t| t.string :name t.string :guid t.timestamps end create_table :circle_owner do |t| t.string :ownable_type t.string :ownable_id t.integer :permissive_circle_id end which still fails with: Failure/Error: @user.circles.should be_an_instance_of Array NameError: uninitialized constant User::CircleOwner Which brings us back to the beginning. How can I do what seems to be a rather common polymorphic :has_many, :through on a module? Alternatively, is there a good way to allow an object to be collected by arbitrary objects in a similar way that will work with a module?

Read the article
Form to sort an index in rails

- by shmichael

I'm a newcomer to Rails. I want to build a simple form that determines the sort order of a list. I've implemented a form in the likes of - <%= radio_button_tag :sort, "rating" %> <%= label_tag :sort_rating, "order by rating" %> <%= radio_button_tag :sort, "name" %> <%= label_tag :sort_name, "order by name" %> And now I am unsure how to implement the sort at the controller/model level. The aspects I am puzzled about are: Where should the sort be performed How could the sort parameter be persisted How could the code be reused Right now, I can't even get the selected sort method to remain selected after a submit. I would most appreciate any guidance or reference to an example.

Read the article
Splitting PDF to png

- by Josh Crowder

I'm using paperclip to upload a pdf. Once the file is uploaded I need to split every page into a png. This is the command I think I need to use convert -size 640x300 fileName.pdf slide.png Now if I run that command from terminal it works fine, but I need a way of getting each slides name so I can add it into a model. What's the best way to achieve this?

Read the article
About to migrate :string but I'm thinking :text might be better. Performance/Purpose?

- by Sam

class CreateScrapes < ActiveRecord::Migration def self.up create_table :scrapes do |t| t.text :saved_characters t.text :sanitized_characters t.string :href t.timestamps end end def self.down drop_table :scrapes end end I'm about to rake db:migrate and I'm think about the attribute type if I should be using text or string. Since saved_characters and sanitized_characters will be arrays with thousands of unicode values, its basically comma delimited data, I'm not sure if `:text' is really the right way to go here. What would you do?

Read the article
Adding a computed column to an ActiveRecord query

- by bmwbzz

Hi, I am running a query using a scope and some conditions. Something like this: conditions[:offset] = (options[:page].to_i - 1) * PAGE_SIZE unless options[:page].blank? conditions[:limit] = options[:limit] ||= PAGE_SIZE scope = Promo.enabled.active results = scope.all conditions I'd like to add a computed column to the query (at the point when I'm now calling scope.all). Something like this: (ACOS(least(1,COS(0.71106459055501)*COS(-1.2915436464758)*COS(RADIANS(addresses.lat))*COS(RADIANS(addresses.lng))+ COS(0.71106459055501)*SIN(-1.2915436464758)*COS(RADIANS(addresses.lat))*SIN(RADIANS(addresses.lng))+ SIN(0.71106459055501)*SIN(RADIANS(addresses.lat))))*3963.19) as accurate_distance Is there a way to do that without just using find_by_sql and rewriting the whole existing query? Thanks!

Read the article
Webrat select_date selector failure.

- by sharas

Code in steps file: select_date user.date_of_birth, :from => "Date of birth" Selector fail When I register with valid user credentials # features/step_definitions/authentication_steps.rb:2 Could not find field: "user_date_of_birth_1i_1i" (Webrat::NotFoundError) ./features/step_definitions/authentication_steps.rb:9:in `/^I register with valid user credentials$/' features/authentication.feature:6:in `When I register with valid user credentials' HTML output seems to be normal: <select name="user[date_of_birth(1i)]" id="user_date_of_birth_1i"> Is it bug, or I am doing something wrong

Read the article
How to sort some values from an array in a controller in Rails?

- by Alfred Nerstu

I've got a links array that I'm saving to a database. The problem is that the records aren't saved in the order of the array ie links[1] is saved before links[2] and so on... This is a example from the view file: <p> <label for="links_9_label">Label</label> <input id="links_9_name" name="links[9][name]" size="30" type="text" /> <input id="links_9_url" name="links[9][url]" size="30" type="text" /> </p> And this is my controller: def create @links = params[:links].values.collect { |link| @user.links.new(link) } respond_to do |format| if @links.all?(&:valid?) @links.each(&:save!) flash[:notice] = 'Links were successfully created.' format.html { redirect_to(links_url) } else format.html { render :action => "new" } end end end Thanks in advance! Alfred

Read the article
rendering specific fields with Rails

- by Tam

Hi, If I have an object say @user and I want to render only certain fields in it say first_name and last_name(I'm using AMF) render :amf => @user how do I do that? I know I can use :select when doing the 'find' but I need to use the other field at the server side but don't want to send them with AMF to the client side and I don't want to do a second 'find' Thanks, Tam

Read the article
where from does paperclip get the name of original file?

- by Pavel K.

i started using nginx upload module (which creates upload files like /tmp/000121545) but i need paperclip to use original filename while saving files (like /public/avatars/LuckyLuke.jpg) previously in the parameters Rails were passing just "avatar"=>#<File:/tmp/RackMultipart20100413-6151-t3ecq0-0> no original filename as well, so i am wondering where from does it come in paperclip? i tried looking through plugin code but it's currently a bit too complex for me.

Read the article
rspec "it" string

- by geosteve

Is it possible for an rspec method to get the value of the parameter passed to it() in the local method? For example, if I want: describe Me do it "should figure this out" puts "I " + SPEC_NAME end end to print this: I should figure this out ... what would I put for SPEC_NAME in the code sample? Even better, how would a relatively new rubologist like me figure this out on his own?

Read the article
Apache + Passenger not passing on custom status codes

- by harm

I'm currently building an API. This API communicates with the client via status codes. I created several custom status codes (as per http://www.w3.org/Protocols/rfc2616/rfc2616-sec6.html#sec6) in order to inform the client on certain things. For example I introduced the 481 status code to signify a specific client error. The Rails app I wrote works like a charm. But when Apache and Passenger are serving it things run aground. When I provoke a 481 error the response header looks like this: HTTP/1.1 500 Internal Server Error Date: Wed, 19 May 2010 06:37:05 GMT Server: Apache/2.2.9 (Debian) Phusion_Passenger/2.2.5 mod_ssl/2.2.9 OpenSSL/0.9.8g X-Powered-By: Phusion Passenger (mod_rails/mod_rack) 2.2.5 Cache-Control: no-cache X-Runtime: 1938 Set-Cookie: _session_id=32bc259dc763193ad57ae7dc19d5f57e; path=/; HttpOnly Content-Length: 62 Status: 481 Content-Type: application/json; charset=utf-8 As you can see the original Status header is still there almost a the end. But the 'true' status header (the very first line) is quiet different. It seems that Apache doesn't like Status headers it has no knowledge of and thus assumes an error. Is there anyway to fix this? Maybe via the mod_headers ( http://httpd.apache.org/docs/2.2/mod/mod_headers.html) module? I don't know enough of Apache to figure this out on my own. Thanks,

Read the article
Imagemagick Resizing in Paperclip

- by jonathan.soeder

So, I want to resize images to a FIXED width, but proportional height. I have been trying a wide range of operators: 380x242# 380x242 380!x242 380x242< none of them have the desired effect. Any help? I want it to fill or resize to the 380 width, then resize / shrink the height by the same factor it used to shrink or resize the image to 380 wide.

Read the article

< Previous Page | 281 282 283 284 285 286 287 288 289 290 291 292 | Next Page >