Heroku
Heroku Rails Receipes Running a migration heroku run rake db:migrate Clearing a PG database on heroku heroku pg:reset DATABASE WARNING: Destructive action postgresql-flexible-10203 will lose […]
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CSS and SASS in Rails
A good article about organising CSS/SASS in Rails http://www.mattboldt.com/organizing-css-and-sass-rails/ Basically you have this in yourapp/assets/stylesheets/application.css /* NOTE: Not Application.scss */ /* *= require_self *= require […]
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Redefining Rails Models: Going Beyond Rails and Sometimes, Beyond Tables
Harnessing ActiveRecord Outside Rails ActiveRecord, the model component of Rails, is well-known for its versatility. It can be used within Rails, of course, but did […]
Continue reading »CSS Tips
To center an image, use margin: auto; and make it into a block element: img { display: block; margin: auto; width: 40%; } Highlight alla länkar som inte länkar nånstans! a[href=”#”], a[href=””], a:not([href]) […]
Continue reading »Rails Templates
Just use them! Save a bunch of time when startiung a new project. Here’s my latest fav: Rails 5.1 with Bootstrap, Font Awesome and Devise. […]
Continue reading »Java Dates and Periods
Period and Duration are not just alternatives, they work very different. Duration is designed to work in exact measurements in seconds and nanoseconds. However, Period […]
Continue reading »Rails Console tips
Sometimes you want to test queries etc from the Rails Console that requiers you to be logged in (for example via Devise). This is how […]
Continue reading »Calculating Historical Volatility
Historical Volatility shows how volatile an asset has been. There are numerous ways of calculating it, and I will show the most simple one here. […]
Continue reading »The Builder Pattern
Reasoning I won’t even go into why you should learn patterns. Patterns are canned knowledge! A problem the Builder Pattern solve It helps you avoid […]
Continue reading »Adding Stripe Payments to your Rails application
If you need to process payments, for example charging the user for using your great new website, Stripe is a great contender. An alternative is […]
Continue reading »Setting up 1000 Devise user accounts using fixtures
Seting up a one Devise user (version 3.5.1 and later) is simple in file <app>/test/fixtures/users.yml: tom: id: 11 name: TestUser email: test@example.org encrypted_password: <%= Devise::Encryptor.digest(User, ‘password’) […]
Continue reading »IOS App that scrolls both vertically and horizontally
Great example on how you create a “Netflix-lookalike” app with scrolling in bort vertical and horizontal direction. https://github.com/ThornTechPublic/HorizontalScrollingCollectionView
Continue reading »Hibernate and Java annotations
So….. I wanted to use something as neat and powerful as Rails’ ActiveRecord. I had used hibernate a bit a long time ago, and frankly […]
Continue reading »CheatSheet for creating an XCode IOS app with a UITableView
Setup Create a standard ViewController (NOT a TableViewController!) Drag a Table onto the ViewController. Snap to edges, Reset to “Suggested Constraints”. Option Cmd Shift = […]
Continue reading »Javascript-länkar att lägga till samlingen
Om ‘use strict’: http://ejohn.org/blog/ecmascript-5-strict-mode-json-and-more/ Modular Javascript/CommonJS: https://addyosmani.com/writing-modular-js/ Babel: Code for ES6 and still be backwards compatible with older browsers: https://babeljs.io JSX In depth: http://facebook.github.io/react/docs/jsx-in-depth.html
Continue reading »Facebook React Native
Det finns flera ramverk som ger möjlighet att skriva appar i Javascript, och sedan kompilera dem för den målmiljö man är intresserad av (oftast iOS […]
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