Haml 3.1.2 displays single quotes in FormBuilder#text_ field html escaped. You may see something like that: David's Chapter Looking at the page's HTML, your field's...
Capistrano 2 brings the shell command which allows you to run commands on your deployment targets. There is also invoke to run a command directly from your terminal.
...allow running Capistrano tasks or shell commands, and scope to individual machines or machine roles. Unfortunately Capistrano 3 does not include these commands any more. cap shell Basics
...so I hope it will be fixed with a future release. The following test succeeds: context 'factories' do let(:test_case) { FactoryBot.create(:test_case) } it 'are valid' do expect(test...
...byebug) FactoryBot.create(:test_case) *** NameError Exception: uninitialized constant # ::TargetLimitation Did you mean? TargetsTestScenario It seems like Byebug does not work well with zeitwerk. There is already a patch in Ruby...
...On purpose? Right... In Gnome Make it an additional ESC key by going to System -> Preference -> Keyboard -> Layouts -> Options -> CapsLock key behavior and select "Make CapsLock an additional ESC".
...to using dconf. dconf write /org/gnome/desktop/input-sources/xkb-options "['caps:escape']" Or, open Tweak advanced GNOME 3 settings and follow Keyboard & Mouse -> Additional Layout Options to chose the same option as described above...
We have released Modularity 2. It has many incompatible changes. See below for a script to migrate your applications automatically. There is no does method anymore We now use traits...
The script will rename your files and change your code. It will also syntax-check your files after conversion (since the script is not perfect). Check the diff...
The robots.txt file and HTML tag can be used to control the behavior of search engine crawlers. Both have different effects. robots.txt Marking a URL path as "disallowed" in robots.txt...
...crawlers to not access that path. robots.txt is not a guarantee for exclusion from search engine results. A "disallowed" URL might be known from an external link, and can still...
Rails 5.2+ supports "verbose query logs" where it shows the source of a query in the application log. Normally, it looks like this: User Load (0.5ms) SELECT "users".* FROM...
...app/controllers/users_controller.rb:42:in `load_users' However, you may encounter ActiveRecord's LogSubscriber as the source for all/most queries which is not helpful at all: User Load (0.5ms) SELECT "users...
...links. Popular pagination libraries like will_paginate or Kaminari do this for us by simply issuing an extra query, like this: SELECT post.* FROM posts LIMIT 20 OFFSET 100;
...of the time. But rarely, you might have very complicated WHERE conditions or a subquery that takes time to run. In these cases, doing two queries is slower than it...
...all the world to admire. For private gems this is very bad. To make sure this cannot happen, rubygems 2.2+ allows you to restrict eligible push hosts: Gem::Specification.new 'my...
...gem', '1.0' do |s| # ... s.metadata['allowed_push_host'] = 'https://gems.my-company.example' end In case you already messed up, follow these instructions to get your gem removed. Of course, it's not...
...Ever wanted to give an element "the container's width minus 20px on each side"? Here you go: .foo { width: calc(100% - (20px * 2)); } When using Sass, you need to...
...interpolate Sass expressions: $margin: 20px * 2 .foo width: calc(100% - #{$margin}) Supported by all modern browsers and IE9...
...Linux and MacOS, they look horrible on Windows, a problem that gets worse with smaller font sizes. The culprit is something called font hinting: ... hinting is about... programming instructions that...
...hinting, causing horrible rendering for most fonts. Embedding autohinting information into font files A solution is to autohint fonts and replace the existing (bad) hinting with the autohinting information.
You may want this for things where Rationals are being used, like when subtracting Date objects from one another. What's happening? Converting a Rational to a String usually...
...does something like this: 1.8.7 > Rational(2, 3).to_s => "2/3" 1.9.3 > Rational(2, 3).to_s => "2/3" 2.0.0 > Rational(2, 3).to_s => "2/3" However, when you have a...
...Content-Type on GET request (which have a blank body), an external API may still force you to send one. Angular's $http service will strip that header when the...
...is blank. [1] This is possibly a misconception of RFC2616. Here is how to send GET requests with a Content-Type header in Angular. Example Consider this request: $http({ method...
A fantastic guide for a dilemma facing any web-based product. Here’s a simple set of Yes/No questions that you can quickly answer before you add another item to...
...your product roadmap. Saying yes to a feature request – whether it’s a to an existing customer, a product enquiry, a teammate, or a manager – is immediately rewarding. It’s...
Soon after having written our shell-for script, we wanted to easily get dumps of our productions machines, too. This is how we do it: dump-for staging [-s]
...dump to your project's tmp directory and name it according to the capistrano stage you're calling for, here: staging.dump. When you pass the optional -s option, the dump...
...message like this, rubygems.org might have issues with their ipv6 connectivity: $ bundle install Fetching source index from https://rubygems.org/ Retrying fetcher due to error (2/4): Bundler::HTTPError Could not fetch...
...specs from https://rubygems.org/ due to underlying error <timed out (https://rubygems.org/specs.4.8.gz)> The (a little bit dirty) possible solution If that's actually the case, then you can try...
When using Sidekiq in your application, you must write thread-safe code. This wiki page also lists gems that are known to be unsafe on threaded applications.
...gem that will also be used by a Sidekiq worker, make sure to confirm it's thread-safe...
What are Google’s plans for turning WebM into a genuinely open standard, one that is based on consensus like the rest of W3C’s HTML5 effort? Would Google fully...
...support such an effort? Even the WebM project’s domain is controlled by Google. Google chose to release WebM under the Creative Commons license which would theoretically allow a standards...
...Railses. Consul now uses Memoizer for this. Temporarily change the current power When you set Power.current to a power in an RSpec example, you must remember to nilify it afterwards...
...Otherwise other examples will see your global changes. A better way is to use the .with_power method to change the current power for the duration of a block:
We used zeroclipboard.js in some of our projects but now we switched to clipboard.js because it does not rely on flash. Flash support of the major browsers has ended.
...more advantages of clipboard.js: it consists only of a single javascript file, so it does not trigger additional requests with rails it automagically provides user feedback by selecting the text...
jQuery doesn't store information about event listeners and data values with the element itself. This information is instead stored in a global, internal jQuery cache object. Every time you...
...gets deleted is when you call remove() on the element that put it there! Since cache entries also have a pointer back to the element that spawned them, it is...
...Use Before and After to avoid that. Details Consider this Cucumber feature file: Feature: Something that needs to be tested Background: Given a user And I sign in Scenario: Sign...
When I sign out Then I should see "Signed out" Scenario: Something else # ... Now, assume you have these step definitions: Around do puts "** Around: before yield" yield puts "** Around...
...extremely popular amongst front-end developers the last couple of years. This isn’t surprising, as it has made it a lot easier for us to create dynamic layouts and...
...to those fields that is case-insensitive. The model looked like this: create_table :shop_locations do |t| t.string :street t.string :house_number t.string :zip_code t.string :city t.belongs_to...
end But how to solve the uniqueness problem? Another day, another undocumented Rails feature! This time, it’s that ActiveRecord::Base.connection.add_index supports an undocumented option to pass a...