ruby-on-rails-3.2

问题 I have the below association class Picture < ActiveRecord::Base belongs_to :user end class User < ActiveRecord::Base has_many :pictures end And in my PicturesController i am eager loading the user class PicturesController < ApplicationController def index @pictures = Picture.includes(:user).all end end In my view, i am displaying each pictures user name -@pictures.each do |picture| %tr %td= picture.name %td= picture.user.name Now the question is, even though i am eager loading the user, i see

问题 I'm using ckeditor in my rails projec and I have a problem with image uploading. I don't want everything that ckeditor have, that I wrote some simple config.js for it: CKEDITOR.editorConfig = (config) -> config.language = 'pl' config.toolbar_Pure = [ '/', { name: 'basicstyles', items: [ 'Bold','Italic','Underline','Strike','Subscript','Superscript','-','RemoveFormat' ] }, { name: 'paragraph', items: [ 'NumberedList','BulletedList','-','Outdent','Indent','-','Blockquote','-','JustifyLeft',

问题 Anybody know a Rails method that will allow me to look for an existing record or create a new one AND execute a subsequent block of code? Example: Model.where(parameters).first_or_create do |m| # execute this regardless of whether record exists or not end Similarly, the method find_or_create_by does not execute a block in either scenario. I could use if-else statements but that will duplicate my code... 回答1: According to the API, the block in your example will only execute if the record does

问题 Anybody know a Rails method that will allow me to look for an existing record or create a new one AND execute a subsequent block of code? Example: Model.where(parameters).first_or_create do |m| # execute this regardless of whether record exists or not end Similarly, the method find_or_create_by does not execute a block in either scenario. I could use if-else statements but that will duplicate my code... 回答1: According to the API, the block in your example will only execute if the record does

问题 My question: Should I roll my own model versioning or use one of the versioning gems that's already out there? If I should use a gem, which one seems best for this application? Info about my app My app is a simple Checklist app. There are Checklists and Jobs, and I track user responses with Responses and Submissions. The Response tells me what the use said ("Done", with a note "We need more mops.") and the Submission tells me when that particular Checklist was filled out (because there may be

问题 The main thing I've gathered from reading about Sessions vs Cookies is that Cookies are stored on the client-side and that sessions are stored on the server-side. If sessions are stored on the server-side, then how does the server ever know which client is theirs? Clearly, something must be on the client-side. Whenever I use my self-rolled user authentication, I have a session_token column in my users database table. Then, this module tends to facilitate sessions for me: module SessionsHelper

问题 I need some help with routes for nested controllers. I can't figure out from the Rails guide docs by myself. I have the following controllers in a rails 3.2 app: /app/controllers/organizations_controller.rb (class OrganizationsController) /app/controllers/organization/events_controller.rb (class Organization::EventsController) then, in routes.rb resources :organizations, path: 'org' do resources :events member do get 'confirm' end end end running rake routes shows (only the relevant part for

问题 I want to select value from select list in RSpec . For example i have such data: <div class="control-group"> <label class="control-label" for="user_teacher_leader_attributes_teacher_id">Teacher names</label> <div class="controls"> <select id="user_teacher_leader_attributes_teacher_id" name="user[teacher_leader_attributes][teacher_id]"> <option value="1" selected="selected">Math teacher</option> <option value="2">Physics teacher</option> </div> </div> I want to select option Physics teacher

问题 I just upgraded from Rails 3.0.3 to 3.2.1. The upgrade went smoothly on my Mac but I'm having trouble getting a 3.2.1 instance of my app running on my Ubuntu production server. The error I'm getting is this: Could not find i18n-0.6.0 in any of the sources (Bundler::GemNotFound) Obviously, other people have had this same problem before. Unfortunately, the solution here doesn't fix it for me. Doing sudo bundle install doesn't seem to make a difference. I also found this post but I don't

问题 Trying to create an instance of a model, I get the following error... u = User.create # or .where(...).first_or_create # or .where(...).first_or_initialize ArgumentError: wrong number of arguments (2 for 1) Is anyone having the same problem with Rails 3.2? 回答1: Have you overloaded your model's initialize method? In my case, I had overloaded it with: def initialize(attributes=nil) ... end Which I had to fix to: def initialize(attributes = nil, options = {}) ... end In Rails 3.2, the commit