Why Most Freelancers Set Their Clients Up For Failure (And How To Fix This)
How you can unknowingly screw your client's business when all you think about is closing the next user story.
Related cards:
How to: Upgrade CarrierWave to 3.x
While upgrading CarrierWave from version 0.11.x to 3.x, we encountered some very nasty fails. Below are the basic changes you need to perform and some behavior you may eventually run into when upgrading your application. This aims to save you some...
Upgrading Cucumber and Capybara to the latest versions available for Rails 2
Specify these gem versions in your Gemfile:
gem 'cucumber', '~> 1.3.0'
gem 'cucumber-rails', '= 0.3.2' # max version for Rails 2
gem 'capybara', '< 2' # capybara 2+ requires Rails 3
gem 'mime-types', '< 2' # dependeny of capybara
...
Ruby and Rails deprecation warnings and how to fix them
Add deprecation warnings and their solution or link to available solutions.
Global access to Rake DSL methods is deprecated. Please include Rake::DSL into classes and modules which use the Rake DSL methods.
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How to fix "Too many authentic authentication failures" with SSH and/or Capistrano
You are getting when connecting via SSH or deploying with Capistrano (which uses SSH):
Too many authentication failures for username
This is caused by having too many SSH keys added to your keyring or ssh-agent. Your ssh-agent will throw all...
Dynamically uploading files to Rails with jQuery File Upload
Say we want …
- to create a
Gallery
that has a name andhas_many :images
, which in turn have a caption - to offer the user a single form to create a gallery with any number of images
- immediate uploads with a progress bar per image
- a snapp...
How to upgrade Rails: Workflow advice
When upgrading Rails versions -- especially major versions -- you will run into a lot of unique issues, depending on the exact version, and depending on your app.
However, it is still possible to give some generic advice on how you want to tackle...
Invoices: How to properly round and calculate totals
While it might seem trivial to implement an invoice that sums up items and shows net, gross and vat totals, it actually involves a lot of rules and caveats. It is very easy to create invoices where numbers don't add up and a few cents are missing....
How to install packages from newer Ubuntu releases
We're usually running Ubuntu LTS versions. Sometimes newer hardware requires packages from more recent Ubuntu releases that only come with 6 months of support. If there is really no other way, it's possible to install packages from later Ubuntu re...
How to create giant memory leaks in AngularJS (and other client-side JavaScript)
This guide shows how to create an AngularJS application that consumes more and more memory until, eventually, the browser process crashes on your users.
Although this guide has been written for Angular 1 originally, most of the advice is relevant...
How to list updateable dependencies with Bundler and Yarn
Bundler
bundle outdated [--filter-major|--filter-minor|--filter-patch]
Example output for bundle outdated --filter-major
Other examples
A useful flag is --strict
as it wi...