About 153 questions
You have to catch this error yourself.
In application.rb
class ApplicationController < ActionController::Base
rescue_from ActionController::UnknownF
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Asked on 7 February 2018
Make sure you have require "action_cable/engine" in application.rb
Asked on 7 February 2018
https://stackoverflow.com/questions/34756809/actioncable-channel-not-accessible-outside-rails-plugin
Asked on 7 February 2018
Use timecop gem!
Or...Rail's default TimeHelper
https://blog.pivotal.io/labs/labs/goodbye-timecop-hello-timehelpers
Asked on 7 February 2018
1.seconds or 1.second is only precise to the second, not milli-seconds
Asked on 7 February 2018
client side
rails 5.0
If you are using the javascript actioncable package. you can unsubscribe by calling the unsubscribe() function on the channel r
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Asked on 7 February 2018
In config/airbrake.rb,
# New way
Airbrake.configure do |c|
c.environment = Rails.env
c.ignore_environments = %w(development test)
end
Reference:
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Asked on 7 February 2018
Use hash "#" before a string of comments
For example, in .env,
# You can comment HereFOO=Bar
Asked on 7 February 2018
http://weblog.rubyonrails.org/2016/6/30/Rails-5-0-final/#yay
http://railsapps.github.io/updating-rails.html
Asked on 7 February 2018
https://github.com/seleniumhq/selenium
https://github.com/flavorjones/chromedriver-helper
http://jjbohn.info/blog/2013/07/31/how-to-take-a-screenshot-
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Asked on 7 February 2018
See http://pjkh.com/articles/postgresql-json-vs-rails-serialize/
Asked on 7 February 2018
Yes, you can serialize with Struct and OpenStruct, but you also need to create the Structto store it.
Asked on 7 February 2018
Make sure your cookie is set to be permanent, so that it doesn't get deleted when you exit the browser.
Asked on 7 February 2018
class UsersController < ApplicationController
def update
user = User.first
user.update(user_params)
end
private
def user_params
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Asked on 7 February 2018
http://web.archive.org/web/20100210204319/http://blog.hasmanythrough.com/2008/2/27/count-length-size
If you set up a counter cache on the association
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Asked on 7 February 2018
after_create - works once, only after the record is first created.
after_save - works every time when you "save" a record; a record can be "saved" wit
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Asked on 7 February 2018
If you have an attribute that needs to be saved to the database as an object (hash, json or array), and retrieved as the same object, then specify the
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Asked on 7 February 2018
Like "sent 2 mins ago"
time_ago_in_words(timestamp)
Example:
timestamp = Time.nowtime_ago_in_words(timestamp)
Asked on 7 February 2018
In Ruby On Rails, active record provides .new & .save v.s. .create, what is the difference?
Answer
Although it is correct that create calls new and t
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Asked on 7 February 2018
So I am using anchorScroll and scrollTo to allow user to scroll to different sections of a page, however, whenever the scrollTo link is clicked, the p
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Asked on 7 February 2018
