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  • How to install mysql gem on Mac os 10.6 ?

    - by Mr_Nizzle
    i just installed MAMP on this iMac and the rubygems but when i run: sudo gem install mysql — –with-mysql-config=/usr/local/mysql/bin/mysql_config gives me Building native extensions. This could take a while... ERROR: Error installing mysql: ERROR: Failed to build gem native extension. /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb mkmf.rb can't find header files for ruby at /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ruby.h Gem files will remain installed in /Library/Ruby/Gems/1.8/gems/mysql-2.8.1 for inspection. Results logged to /Library/Ruby/Gems/1.8/gems/mysql-2.8.1/ext/mysql_api/gem_make.out ERROR: could not find gem — locally or in a repository ERROR: could not find gem –with-mysql-config=/usr/local/mysql/bin/mysql_config locally or in a repository how can i install this gem ?

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  • like-vim emacs ruby indentation

    - by edbond
    ruby-mode from svn, looks equal to 1.1 version here is emacs indentation of hash User.all({ :joins => :account, :conditions => {:delete_at => nil} }) here is the same in vim User.all({ :joins => :account, :conditions => {:delete_at => nil} }) How to make emacs indent like vim in ruby-mode?

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  • Generating the input id with an ActiveRecord model

    - by swilliams
    How do you generate an input's id attribute, given a model? For example, if I have a model of Person with a first_name attribute, the form helper prints out a textbox with this html: <input type="text" id="person_first_name" /> How can I generate that person_first_name from some other place in the code (like in a controller or some place)?

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  • NoMethodError when using .where (eager fetching)

    - by Ethan Leroy
    I have the following model classes... class Image < ActiveRecord::Base attr_accessible :description, :title has_many :imageTags has_many :tags, :through => :imageTags end class Tag < ActiveRecord::Base attr_accessible :name has_many :imageTags has_many :images, :through => :imageTags end class ImageTag < ActiveRecord::Base attr_accessible :position belongs_to :image belongs_to :tag end And when I use find for getting the Tag with the id 1 t = Tag.find(1); @images = t.images; But when I do the same with where, I get a NoMethodError, with the description undefined method 'images': t = Tag.where(:name => "foo"); @images = t.images; I also tried adding .includes(:images) before the .where statement, but that doesn't work too. So, how can I get all Images that belong to a Tag?

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  • Problem building relationships between models

    - by Brian Roisentul
    Until now, I've been using acts_as_taggable_on plugin for tagging announcements. That plugin creates the following tables: taggings: relates tags and announcements table(for the tagged item, it has a field called taggable_id, which I rename to "announcement_id" for what I'll explain below). tags: has the tag ids and names. The other day, I discovered that I had no way of getting the announcements tagged with a certain tag, but doing Announcement.tagged_with(tag_name), and I don't want to search by name, but for id. So, as I'm using almost nothing of the functionality in that plugin, I decided to create the models for taggings and tags tables, to accomplish this: Announcement.tags. The models' relationships look as following: class Tagging < ActiveRecord::Base belongs_to :announcement belongs_to :tag end class Tag < ActiveRecord::Base has_many :announcements, :through => :taggings end class Announcement < ActiveRecord::Base has_many :tags, :through => :taggings Why can't I execute the command Announcement.tags? Because when I try, I get undefined method `tags'

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  • RoR: Condition Always False - Why?

    - by Matt Hollingsworth
    Working in RoR 2.3.x. My quiz_results table has a row for user_id (3907) and result (0.1), and two users I'm looking at with no rows in the quiz_results table. This line keeps returining false: -if QuizResult.find_by_user_id(@user_id).present? But if I change it to anything that returns true, the next line reports an error on the * method: ="#{(QuizResult.average('score', :conditions => 'user_id = #{@user.id}') * 100).round}%" The beginning of the code is a loop: [email protected] do |user| Any ideas how to fix? Have tried unsuccessfully all day.

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  • Testing instance variables from controllers with rspec

    - by Thiago
    Hi, I am trying to get the following spec to run: describe BlacklistController, "GET index" do it "should display the list of universally blocked numbers" do get :index debugger assigns[:blocked_numbers].should contain "190" end end Here's the action def index @blocked_numbers << "190" respond_to do |format| format.html end end And the failure simply says that assigns[:blocked_numbers} is nil. Why's that?

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  • Send value from one action to another

    - by TJY
    I have vendors/show view with button "Add new item" button. When i press "Add new item", it leads to items/new view with select which contain all Vendors. I want to send vendor id value to items/new, that way it will be possible to show correct Vendor on my select. How it can be done RIGHT?

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  • Include only the latest/newest associated record with active record?

    - by railsnewbie
    is it possible to load only the latest associated record of an associated table? an example: class author attr_accessible :first_name, :last_name, :birthday has_many :books end class book attr_accessible :pages, :date of publication, :title belongs_to :author end Is there a way to generate a scope to load only the newest released book the author wrote? Or the book with the most pages? I know, that I could include or join all books. But I don't know if its possible to load only a specific book for each author. So that I could do a query like this: Author.authors_and_their_newest_book So that I could get these results first_name_author_1, last_name_author_1, birthday_author_1, pages_book_3, date of publication_book_3, title_book_3 first_name_author_2, last_name_author_2, birthday_author_2, pages_book_5, date of publication_book_5, title_book_5 first_name_author_3, last_name_author_3, birthday_author_3, pages_book_9, date of publication_book_9, title_book_9 ...

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  • ActiveRecord validates... custom field name.

    - by Dmitriy Likhten
    I would like to fix up some error messages my site generates. Here is the problem: class Brand < ActiveRecord::Base validates_presence_of :foo ... end My goal is to make a message "Ticket description is required" instead of "Foo is required" or may not be blank, or whatever. The reason this is so important is because lets say previously the field was ticket_summary. That was great and the server was coded to use that, but now due to crazy-insane business analysts it has been determined that ticket_summary is a poor name, and should be ticket_description. Now I don't necessarily want to have my db be driven by the user requirements for field names, especially since they can change frequently without functionality changes. Is there a mechanism for providing this already?

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  • has_many through and saving to join table

    - by Paul
    I have the following: class Invite < ActiveRecord::Base belongs_to :user has_many :invite_recipients has_many :recipients, :through => :invite_recipients end class InviteRecipient < ActiveRecord::Base belongs_to :invite belongs_to :user_comm validates_associated :user_comm, :invite validates_uniqueness_of :user_comm_id, :scope => :invite_id end class UserComm < ActiveRecord::Base end I'd like to create a method for Invite with invite_text and a list of UserComms as the variables and then have it create a new invite with the following validations: 1. All UserComms are unique 2. The invite isn't saved unless all the associated InviteRecipients are saved as well (in other words, the invite isn't valid unless all the created InviteRecipients are valid) I'm not familiar with how to create model functions. Moreover, when I try something like this: i = Invite.new(:invite_text => 'come join') ir1 = InviteRecipient.new(:invite => i, :user_comm => user_comm1) ir2 = InviteRecipient.new(:invite => i, :user_comm => user_comm2) i.invite_recipients = [uc1, uc2] i.save! I get: SystemStackError: stack level too deep

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  • Removing "duplicate objects"

    - by keruilin
    Let's say I have an array of objects from the same class, with two attributes of concern here: name and created_at. How do I find objects with the same name (considered dups) in the array, and then delete the duplicate record in the database. The object with the most-recent created_at date, however, is the one that must be deleted.

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  • Encrypted ID in URLs

    - by Eric
    I am trying to hash or encrypt a record's ID for URL's such that people can't view various records simply by guessing different integer ID's. Essentially, my URL's would be something like this: /plans/0AUTxwoGkOYfiZGd2 instead of /plans/304. Would the best way to do this just be to use SHA-1 to hash the plan's id and store it in a hashed_id column for plans? Then, overwrite to_param and add a finder to find by hashed_id? How do you ensure that the characters generated are 0-9, a-z, or A-Z? Thanks!

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  • Accessing global variables in a flash[:notice]

    - by Trip
    This is deals_controller.rb. And it works like this, except two things. Not sure how to call Deal.count to add in my flash[:notice] . I get the hunch that its not calling something global. I need that contional statement back, as I'm pretty sure its responsible for actually adding the new @deal . So I assume my syntax is off. Do note, I added an extra 'end' when I uncomment this block. def create -# This will use the disclaimer_ids submitted from the check boxes in the view -# to add/delete deal.disclaimers entries to matched the list of checked boxes. @deal = Deal.new(params[:deal]) -# <------I Need this commented out IF statement back ------- -#if @deal.valid? && @organization.deals << @deal flash[:notice] = 'Your promotion is published! You may find it in the number 1 position of our #{deal.count} previously posted promotions. To see your promotion, click here."' respond_to do |format| format.html { redirect_to organization_deals_path(@organization) } format.js -# I Need this IF Statement Back! -#else -#@disclaimers = Disclaimer.all -#render :action = 'new' end end Thanks!

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  • RSpec leaves record in test database

    - by DMiller
    Whenever I run a user test, RSpec leaves the Fabricated user in the test database after the test has completed, which is messing up my other tests. I will do a rake db:test:prepare, but when I run my tests again, the record is recreated in my database. I have no idea why this is happening. It only happens with user objects. In my spec_helper file I even have: config.use_transactional_fixtures = true Here is an example test that creates a record: it "creates a password reset token for the user" do alice = Fabricate(:user) post :create, email: alice.email expect(assigns(alice.password_reset_token)).to_not eq(nil) end Fabricator: Fabricator(:user) do email { Faker::Internet.email } password 'password' name { Faker::Name.name } end Could this have anything to do with my users model?

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  • extended permissions

    - by melimoreno
    Hi i'm doing a fb app that update the status box(what's in your mind), i'm using set_status from facebooker .. first i have this error: set_status needs extended permission so i google it and find this: before_filter :ensure_has_status_update .. so i put it in my controller and that solves the problem, but when i try to update the status, all ways redirect me to a fb page that says: You have already granted permissions to this application. so i go to the controller comment before_filter :ensure_has_status_update and then go to my app again and it works.. so i want to do this if (has_status_update == false) ask for permision else update the status i google it for a long time but i can't find an answer..

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  • dependent: :destroy is not deleting dependencies from views

    - by jxdx
    Projects have many rooms. When I delete a project from the view, the associated rooms are not deleted. Rooms also have many products which should also be deleted when a project is deleted. Project class class Project < ActiveRecord::Base belongs_to :user has_many :rooms, dependent: :destroy has_many :products, through: :rooms end Projects Controller class ProjectsController < ApplicationController def destroy @project = current_user.projects.find(params[:id]) if @project.delete redirect_to user_projects_path(@project.user) end end end Rooms Controller class RoomsController < ApplicationController def destroy @room = Room.find(params[:id]) if @room.delete redirect_to root_path end end The delete link in the projects show view. = link_to "Delete", project_room_path(room.project, room), method: :delete, data: { confirm: "Are you sure?" }, title: room.title, class: "btn btn-danger"

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  • Prototype 'on show' Event.observe handler

    - by ryan
    I am trying to make an AJAX request that updates a div's content when that div is shown. My initial thought was to use an Event observer that watched for a div to be shown, but I cannot seem to find an appropriate handler. Is there an easy way to make an AJAX request for an element 'on show?'

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  • OpenId + Bort + google

    - by zakurahime
    Hi I'm new in using ruby and i wanted to implement the openid feature that came with the bort template... I used the google openid url https://www.google.com/accounts/o8/id in the sign up but it cant get the email that i used in the openid login.. here's a part of my code... its the standard code from the bort template def create logout_keeping_session! if using_open_id? authenticate_with_open_id(params[:openid_url], :return_to => open_id_create_url, :required => [:nickname, :email]) do |result, identity_url, registration| if result.successful? create_new_user(:identity_url => identity_url, :login => registration['nickname'], :email => registration['email']) else failed_creation(result.message || "Sorry, something went wrong") end end else create_new_user(params[:user]) end end i will really appreciate any help on this.. i've been stuck with this for a few days now.. thanks

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  • Getting a loop when using link_to :back

    - by onildo
    I have this structure for the table course: Search page - Result Page - Edit Page - Show page When i go from result page to a specific course edit page, i edit it, and end up on the show page, but when i hit back, i get a loop from show to edit, and back to show and so on. I want the edit page to back to the result page if it came from there. im using this on both: <%= link_to "Back", :back %>

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  • Camping: Return user to recent entries, but keep errors

    - by echoback
    Users can view a specific entry in my webapp with a URL. /entry/8, for example. If an entry doesn't exist, "Entry not found" gets appended to @messages and I render an error page. I'd like to redirect the user to /recent, but I can't figure out a good way to keep the error message around to be displayed. There are other actions that need to take place in the Recent controller, so I can't just duplicate the query and render :posts.

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