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• devise roles: different roles, in some cases same rights

  - by mattherick

  I have two roles in devise. The first is the admin and the second the normal user-role. Now I´d like to give these two groups in some cases same rights with before filters. How does this work? I have: before_filter :authenticate_user!, :only = [:new, :create] before_filter :authenticate_admin!, :only = [:new, :create, :edit, :update, :destroy] But now only a user can :new and :create...the admin not.. What I have to do here? Thanks, Mattherick

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• Where are the factory_girl records?

  - by gmile

  I'm trying to perform an integration test via Watir and RSpec. So, I created a test file within /integration and wrote a test, which adds a test user into a base via factory_girl. The problem is — I can't actually perform a login with my test user. The test I wrote looks as following: ... before(:each) @user = Factory(:user) @browser = FireWatir::Firefox.new end it "should login" @browser.text_field(:id, "username").set(@user.username) @browser.text_field(:id, "password").set(@user.password) @browser.button(:id, "get_in").click end ... As I'm starting the test and see a "performance" in browser, it always fires up a Username is not valid error. I've started an investigation, and did a small trick. First of all I've started to have doubts if the factory actually creates the user in DB. So after the immediate call to factory I've put some puts User.find stuff only to discover that the user is actually in DB. Ok, but as user still couldn't have logged in I've decided to see if he's present in DB with my own eyes. I've added a sleep right after a factory call, and went to see what's in the DB at the moment. I was crushed to see that the user is actually missing there! How come? Still, when I'm trying to output a user within the code, he is actually being fetched from somewhere. So where does the records, made by factory_girl within a runtime lie? Is it test or dev DB? I don't get it. I've 10 times checked if I'm running my Mongrel in test mode (does it matter? I think it does, as I'm trying to tun an integration test) and if my database.yml holds the correct connection specific data. I'm using an authlogic, if that can give any clue (no, putting activate_authlogic doesn't work here).

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• Add a :filter param to the end of a url

  - by bob

  Hello, I am building an application that requires a search to go deeper than the initial level. I am using nested scopes to accomplish this and params in the URL For example, when a user searches for "handbag" it creates a query like the following. http://localhost:3000/junks?search=handbag&condition=&category=&main_submit=Go! I want to add a :filter param to the end of this url and reload the page with the new url. http://localhost:3000/junks?search=handbag&condition=&category=&main_submit=Go!&filter=lowest_price As shown above the &filter=lowest_price is added to the query. I have already written controller code to handle this and I know it works as long as the query is like the 2nd link above. my views code <div class = "filter_options"> <p> <strong>Filter by:</strong> <%= link_to_unless_current "Recent", :filter => 'recent' %> | <%= link_to_unless_current "Lowest Price", :filter => 'lowest_price' %> | <%= link_to_unless_current "Highest Price", :filter => 'highest_price' %> </p> </div> This is how I have it currently, which works if my URL does not have a search string attached to it. Unfortunately, this will go to a http://localhost:3000/junks?filter=lowest_price even if there is a search string. I would like to know how to create my links so that they add onto the search string shown in the 2nd code example. Additionally, if a search string with a filter is already present, it would only change that filter and resubmit the search string with the new filter. I hope I am being clear.

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• xmlhttprequest always return with status code 0 for firefox

  - by Neo

  hi, I am trying to make asynchronous calls using xmlhttprequest object so it completely works fine in internet explorer but for firefox it wont work a small code snippet of problem if (req.readyState == 4) { if (req.status == 200) //here firefox gives status code always 0 and for IE works fine { //read response } else { alert("There was a problem with the request."); } }

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• Jquery UI Slider - Input a Value and Slider Move to Location

  - by RobertC

  I was wondering if anyone has found a solution or example to actually populating the input box of a slider and having it slide to the appropriate position onBlur() .. Currently, as we all know, it just updates this value with the position you are at. So in some regards, I am trying to reverse the functionality of this amazing slider. One link I found: http://www.webdeveloper.com/forum/archive/index.php/t-177578.html is a bit outdated, but looks like they made an attempt. However, the links to the results do not exist. I am hoping that there may be a solution out there. I know Filament has re-engineered the slider to handle select (drop down) values, and it works flawlessly.. So the goal would be to do the same, but with an input text box. Any help would be incredible! Thanks in Advance!! Robert

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• Facebooker extended permissions??

  - by Ivan

  Facebook gives access to users' emails via the extended permission. There's also a way in JS and PHP to force users to grant the permission when they accept the app's TOS - http://wiki.developers.facebook.com/index.php/Extended_permissions Is there a way that I can do this with Facebooker? Regards..

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• Confused as to which Prototype helper to use

  - by user284194

  After reading http://api.rubyonrails.org/classes/ActionView/Helpers/PrototypeHelper.html I just can't seem to find what I'm looking for. I have a simplistic model that deletes the oldest message after the list of messages reaches 24, the model is this simple: class Message < ActiveRecord::Base after_create :destroy_old_messages protected def destroy_old_messages messages = Message.all(:order => 'updated_at DESC') messages[24..-1].each {|p| p.destroy } if messages.size >= 24 end end There is a message form below the list of messages which is used to add new messages. I'm using Prototype/RJS to add new messages to the top of the list. create.rjs: page.insert_html :top, :messages, :partial => @message page[@message].visual_effect :grow #page[dom_id(@messages)].replace :partial => @message page[:message_form].reset My index.html.erb is very simple: <div id="messages"> <%= render :partial => @messages %> </div> <%= render :partial => "message_form" %> When new messages are added they appear just fine, but when the 24 message limit has been reached it just keeps adding messages and doesn't remove the old ones. Ideally I'd like them to fade out as the new ones are added, but they can just disappear. The commented line in create.rjs actually works, it removes the expired message but I lose the visual effect when adding a new message. Does anyone have a suggestion on how to accomplish adding and removing messages from this simple list with effects for both? Help would be greatly appreciated. Thanks for reading. P.S.: would periodically_call_remote be helpful in this situation?

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• Testing Paypal error messages using ActiveMerchant

  - by vrish88

  Hello, Is there a way to test your application's processing and handling of Paypal generated credit card errors? I'd like to verify that my application can handle a declined credit card or something like that. So is there a way to have Paypal send an error message? Or would it be better to generate a stub and use it in the testing environment? If this is the better way, how would one generate a stub? Thanks!

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• jQuery .load() wait till content is loaded

  - by user1785870

  How to prevent jQuery $('body').load('something.php'); from changing any DOM till all the content from something.php (including images,js) is fully loaded -Lets say some actual content is: Hello world And something.php content is: image that loads for 10 seconds 20 js plugins After firing .load() function nothing should happen, till images an js files are fully loaded, and THEN instantly change the content. some preloader may appear, but its not subject of question.

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• ~/.irbrc not executed when starting irb or script/console

  - by Patrick Klingemann

  Here's what I've tried: 1. gem install awesome_print 2. echo "require 'ap'" >> ~/.irbrc 3. chmod u+x ~/.irbrc 4. script/console 5. ap { :test => 'value' } Result: NameError: undefined local variable or method `ap' for # Some additional info: Fedora 13 (observed this issues in prior versions of Fedora also) bash --version Produces: GNU bash, version 4.1.2(1)-release (x86_64-redhat-linux-gnu) Copyright (C) 2009 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later This is free software; you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.

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• FasterCSV Parsing issue?

  - by Schroedinger

  G'day guys, I'm currently using fastercsv to construct ActiveRecord elements and I can't for the life of me see this bug (tired), but for some reason when it creates, if in the rake file i output the column I want to save as the element value, it puts out correctly, as either a Trade or a Quote but when I try to save it into the activerecord, it won't work. FasterCSV.foreach("input.csv", :headers => true) do |row| d = DateTime.parse(row[1]+" "+row[2]) offset = Rational(row[3].to_i,24) o = d.new_offset(offset) t = Trade.create( :name => row[0], :type => row[4], :time => o, :price => row[6].to_f, :volume => row[7].to_i, :bidprice => row[10].to_f, :bidsize => row[11].to_i, :askprice => row[14].to_f, :asksize => row[15].to_i ) end Ideas? Name and Type are both strings, every other value works except for type. Have I missed something really simple?

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• Adding lengths of strings together in Ruby

  - by ppreyer

  I'm trying to write a program that takes the length of my first, middle, and last names individually and then adds the total amount of letters up in the end. My answer keeps on being 666 instead of 18. Here is the code I have written: puts 'What is your first name?' firstName = gets.chomp realFirstName = firstName.length.to_i puts 'What is your middle name?' middleName = gets.chomp realMiddleName = middleName.length.to_i puts 'What is your last name?' lastName = gets.chomp realLastName = lastName.length.to_i puts 'Did you know there are ' + realFirstName.to_s + realMiddleName.to_s + realLastName.to_s + ' letters in your name?' Just wondering where I went wrong.

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• How to setup default attributes in a ruby model

  - by webdestroya

  I have a model User and when I create one, I want to pragmatically setup some API keys and what not, specifically: @user.apikey = Digest::MD5.hexdigest(BCrypt::Password.create("jibberish").to_s) I want to be able to run User.create!(:email=>"[email protected]") and have it create a user with a randomly generated API key, and secret. I currently am doing this in the controller, but when I tried to add a default user to the seeds.rb file, I am getting an SQL error (saying my apikey is null). I tried overriding the save definition, but that seemed to cause problems when I updated the model, because it would override the values. I tried overriding the initialize definition, but that is returning a nil:NilClass and breaking things. Is there a better way to do this?

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• Ruby 'if' condition in rjs

  - by ash34

  Hi, I want to insert a user in the userlist only if the user object (@row) is not nil. How do I do the insert conditionally in an rjs template? page.insert_html :bottom, :userlist, render(:partial = "user", :locals = { :user = @row, :myid = @row.id }) thanks much.

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• rails3 link_to :with attribute?

  - by z3cko

  i am wondering if the :with attribute is removed from rails3 since i cannot find anything in the rails3 api - http://rails3api.s3.amazonaws.com anyone has a clue or give a hint on how to use the :with parameter to send data with a link_to non-working example: = link_to "Foo", {:action => "filter", :filter => "filter1",:with => "'test='+$('search').value"}, :remote => true, :class => "trash unselected", :id => "boo" thanks!

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• AsyncPostBackTrigger disables buttons...

  - by afsharm

  I've a simple UpdatePanel and a button outside of it. I've introduced the button as an AsyncPostBackTrigger in the UpdatePanel. UpdatePanel itself works fine but the button does not. Whenever the button is clicked, its click handler does not run just like the button is not clicked at all! Why the button is not working and how can it be fixed? UPDATE: here is the markup: <asp:UpdatePanel ID="upGridView" runat="server" UpdateMode="Conditional"> <ContentTemplate> <asp:GridView ID="grdList" SkinID="SimpleGridView" DataKeyNames="Key" runat="server" AllowPaging="True" PageSize="15" AutoGenerateColumns="False" Caption="<%$ Resources: CommonResources, grdListCaption %>" EmptyDataText="<%$ Resources: CommonResources, grdListEmptyDataText %>" OnRowEditing="grdList_RowEditing" OnPageIndexChanging="grdList_PageIndexChanging" OnRowCreated="grdList_RowCreated"> <Columns> </Columns> </asp:GridView> </ContentTemplate> <Triggers> <asp:AsyncPostBackTrigger ControlID="btnDelete" EventName="Click" /> <asp:AsyncPostBackTrigger ControlID="btnNew" EventName="Click" /> <asp:AsyncPostBackTrigger ControlID="btnForward" EventName="Click" /> </Triggers> </asp:UpdatePanel> <asp:Button ID="btnDelete" runat="server" SkinID="Button" Text="<%$ Resources: CommonResources, btnDelete %>" OnClick="btnDelete_Click" /> <asp:Button ID="btnNew" runat="server" SkinID="Button" Text="<%$ Resources: CommonResources, btnNew %>" OnClick="btnNew_Click" /> <asp:Button ID="btnForward" runat="server" SkinID="Button" meta:resourcekey="btnForward" OnClick="btnForward_Click" />

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• Mysql::Error: Duplicate entry

  - by Shaliko

  Hi I have a model class Gift < ActiveRecord::Base validates_uniqueness_of :giver_id, :scope => :account_id end add_index(:gifts, [:account_id, :giver_id], :uniq => true) Action def create @gift= Gift.new(params[:gift]) if @gift.save ... else ... end end In the "production" mode, I sometimes get an error ActiveRecord::StatementInvalid: Mysql::Error: Duplicate entry '122394471958-50301499' for key 'index_gifts_on_account_id_and_user_id' What the problem?

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• Mysql::Error: Duplicate entry

  - by Shaliko

  Hi I have a model class Gift < ActiveRecord::Base validates_uniqueness_of :giver_id, :scope => :account_id end add_index(:gifts, [:account_id, :giver_id], :uniq => true) Action def create @gift= Gift.new(params[:gift]) if @gift.save ... else ... end end In the "production" mode, I sometimes get an error ActiveRecord::StatementInvalid: Mysql::Error: Duplicate entry '122394471958-50301499' for key 'index_gifts_on_account_id_and_giver_id' What the problem?

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• Aborting jQuery().load()

  - by Daniel I-S

  The .load() function of the jQuery library allows you to selectively load elements from another page (subject to certain rules). I would like to know whether it is possible to abort the load process. In our application, a user can browse a list of items. They may choose to click a button which loads and displays additional information about an item from another document (which can take some time). If they choose a different item in the list whilst a .load() is still happening, I would like the loading to be aborted. Is this possible? Is it even worth it? Any ideas? Dan

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• Installing and using acts-as-taggable-on

  - by seaneshbaugh

  This is going to be a really dumb question, I just know it, but I'm going to ask anyways because it's driving me crazy. How do I get acts-as-taggable-on to work? I installed it as a gem with gem install acts-as-taggable-on because I can't ever seem to get installing plugins to work, but that's a whole other batch of questions that are all probably really dumb. Anyways, no problems there, it installed correctly. I did ruby script/generate acts_as_taggable_on_migration and rake db:migrate, again no problems. I added acts_as_taggable to the model I want to use tags with, started up the server and then loaded the index for the model just to see if what I've got so far is working and got the following error: undefined local variable or method `acts_as_taggable' for #. I figure that just means I need to do something like require 'acts-as-taggable-on' to my model's file because that's typically what's necessary for gems. So I did that hit refresh and got uninitialized constant ActiveRecord::VERSION. I'm not even going to pretend to begin to know what that means went wrong. Did I go wrong somewhere or there something else I need to do. The installation instructions seem to me like they just assume you generally know what you're doing and don't even begin to explain what to do when things go wrong.

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• Putting update logic in your migrations

  - by Daniel Abrahamsson

  A couple of times I've been in the situation where I've wanted to refactor the design of some model and have ended up putting update logic in migrations. However, as far as I've understood, this is not good practice (especially since you are encouraged to use your schema file for deployment, and not your migrations). How do you deal with these kind of problems? To clearify what I mean, say I have a User model. Since I thought there would only be two kinds of users, namely a "normal" user and an administrator, I chose to use a simple boolean field telling whether the user was an adminstrator or not. However, after I while I figured I needed some third kind of user, perhaps a moderator or something similar. In this case I add a UserType model (and the corresponding migration), and a second migration for removing the "admin" flag from the user table. And here comes the problem. In the "add_user_type_to_users" migration I have to map the admin flag value to a user type. Additionally, in order to do this, the user types have to exist, meaning I can not use the seeds file, but rather create the user types in the migration (also considered bad practice). Here comes some fictional code representing the situation: class CreateUserTypes < ActiveRecord::Migration def self.up create_table :user_types do |t| t.string :name, :nil => false, :unique => true end #Create basic types (can not put in seed, because of future migration dependency) UserType.create!(:name => "BASIC") UserType.create!(:name => "MODERATOR") UserType.create!(:name => "ADMINISTRATOR") end def self.down drop_table :user_types end end class AddTypeIdToUsers < ActiveRecord::Migration def self.up add_column :users, :type_id, :integer #Determine type via the admin flag basic = UserType.find_by_name("BASIC") admin = UserType.find_by_name("ADMINISTRATOR") User.all.each {|u| u.update_attribute(:type_id, (u.admin?) ? admin.id : basic.id)} #Remove the admin flag remove_column :users, :admin #Add foreign key execute "alter table users add constraint fk_user_type_id foreign key (type_id) references user_types (id)" end def self.down #Re-add the admin flag add_column :users, :admin, :boolean, :default => false #Reset the admin flag (this is the problematic update code) admin = UserType.find_by_name("ADMINISTRATOR") execute "update users set admin=true where type_id=#{admin.id}" #Remove foreign key constraint execute "alter table users drop foreign key fk_user_type_id" #Drop the type_id column remove_column :users, :type_id end end As you can see there are two problematic parts. First the row creation part in the first model, which is necessary if I would like to run all migrations in a row, then the "update" part in the second migration that maps the "admin" column to the "type_id" column. Any advice?

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• Iframe vs dynamically loading web user controls

  - by kevin

  I need some advice on techniques to perform page redirect in asp.net. Which one is more recommended to use in asp.net? Dynamically changed the src of the Iframe to difference aspx. Dim frame As HtmlControl = CType(Me.FindControl("frameMain"), HtmlControl) frame.Attributes("src") = "page1.aspx" Dynamically load web user controls to an asp:panel. panelMain.Controls.Clear() panelMain.Controls.Add(LoadControl("WebControl/page1.ascx")) (convert all aspx page to web user controls)

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• How to: Searchlogic and Tags

  - by bob

  I have installed searchlogic and added will_paginate etc. I currently have a product model that has tagging enabled using the acts_as_taggable_on plugin. I want to search the tags using searchlogic. Here is the taggable plugin page: http://github.com/mbleigh/acts-as-taggable-on Each product has a "tag_list" that i can access using Product.tag_list or i can access a specific tag using Product.tags[0] I can't find the scope to use for searching however with search logic. Here is my part of my working form. <p> <%= f.label :name_or_description_like, "Name" %><br /> <%= f.text_field :name_or_description_like %> </p> I have tried :name_or_description_or_tagged_with_like and :name_or_description_or_tags_like and also :name_or_description_or_tags_list_like to try and get it to work but I keep have an error that says the options i have tried are not found (named scopes not found). I am wondering how I can get this working or how to create my own named_scope that would allow me to search the tags added to each product by the taggable plugin. Thanks!

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• adding model validation errors in rescue

  - by ash34

  I have the following model with a virtual attribute class Mytimeperiod < ActiveRecord::Base validates presence of :from_dt validates_format_of :from_dt, :with => /\A\d{2}\/\d{2}\/\d{4}\Z/, :message => "format is mm/dd/yyyy" def from_dt self.from_date.strftime("%m/%d/%Y") if !self.from_date.blank? end def from_dt=(from_dt) self.from_date = Date.parse(from_dt) rescue self.errors.add_to_base("invalid from dt") end end I am using <%= f.error_messages %> to display the error messages on the form. I am using from_dt as a virtual attribute (string). The 'presence of' and 'format of' validation errors show up on the form, but when the user enters an invalid date format on the form and Date.Parse raises an exception I have a 'errors.add_to_base' statement in the rescue clause. Can anyone tell me why this error does not show up in the form error messages when I disable the 'format of' validation. thanks.

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• Creating a new nested resource

  - by Bobby B

  I'm working on a basic garden logging application which consists of gardens, plants and planted plants. Each user has one or many gardens, plants are master definitions, and a planted plant can be thought of as an instance of a plant in a specific user's garden. In my routes.rb file I have the following: map.resources :gardens do |gardens| gardens.resources :planted_plants, :has_many => :plant_log_entries, :collection => { :filter => :post, :choose_garden => :post} gardens.resources :garden_log_entries end map.resources :plants This makes sense to me when retrieving a list of planted_plants in a user's garden, but I'd like to create a planted_plant record from the index of plant. The problem is, a user can have multiple gardens. How can I create a new form for a planted_plant that allows the user to specify which garden should be used? The current route requires a garden_id - which makes sense for retrieval, but I'd like to supply that as a parameter for creation. Thanks in advance for any help!

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