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pragma solidity ^0.4.24; | |
// ---------------------------------------------------------------------------- | |
// Sample token contract | |
// | |
// Symbol : LCST | |
// Name : LCS Token | |
// Total supply : 100000 | |
// Decimals : 2 | |
// Owner Account : 0xde0B295669a9FD93d5F28D9Ec85E40f4cb697BAe |
- Sinatra is a framework that is considered by the ruby community as baby rails
- It's not really baby by any means; it's more like a stripped back version of rails
- You have to create more of the code yourself, rails comes bundled with more features that allows you to start coding quicker
- But it is kind of nice to know that you wrote every line of code in the app
- A framework is something that allows a programmer to handle all the aspects of what it takes to build an API or a web app
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FROM ruby:2.3.1 | |
# Install dependencies | |
RUN apt-get update -qq && apt-get install -y build-essential libpq-dev nodejs | |
# Set an environment variable where the Rails app is installed to inside of Docker image: | |
ENV RAILS_ROOT /var/www/app_name | |
RUN mkdir -p $RAILS_ROOT | |
# Set working directory, where the commands will be ran: |
Code is clean if it can be understood easily – by everyone on the team. Clean code can be read and enhanced by a developer other than its original author. With understandability comes readability, changeability, extensibility and maintainability.
- Follow standard conventions.
- Keep it simple stupid. Simpler is always better. Reduce complexity as much as possible.
- Boy scout rule. Leave the campground cleaner than you found it.
- Always find root cause. Always look for the root cause of a problem.
http://stackoverflow.com/a/808776/1180523
# model
validates :email, :uniqueness => { message: "is wrong" }
validates :name, :uniqueness => { message: "Your name is wrong" }
HUMANIZED_ATTRIBUTES = {
:email => "E-mail address",
:name => "" # don't include column name in error
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HTTP status code symbols for Rails | |
Thanks to Cody Fauser for this list of HTTP responce codes and their Ruby on Rails symbol mappings. | |
Status Code Symbol | |
1xx Informational | |
100 :continue | |
101 :switching_protocols | |
102 :processing |