kimobrian

Migrations & Seeding

What are migrations??

Migrations are a way to make database changes or updates, like creating or dropping tables, as well as updating a table with new columns with constraints via generated scripts. We can build these scripts via the command line using knex command line tool.

To learn more about migrations, check out this article on the different types of database migrations!

Creating/Dropping Tables

kimobrian

var p1={
	x:0,
	y:0
};

var p2={
	x:0,
	y:1
};

kimobrian

Keybase proof

I hereby claim:

• I am kimobrian on github.
• I am warrior254 (https://keybase.io/warrior254) on keybase.
• I have a public key ASDg_TdpvhJfjhNjmmF57kv9ZwLSvY_oxD9q3dnqVc-_Jgo

To claim this, I am signing this object:

kimobrian

# Generate a new pgp key: (better to use gpg2 instead of gpg in all below commands)
gpg --gen-key
# maybe you need some random work in your OS to generate a key. so run this command: `find ./* /home/username -type d | xargs grep some_random_string > /dev/null`

# check current keys:
gpg --list-secret-keys --keyid-format LONG

# See your gpg public key:
gpg --armor --export YOUR_KEY_ID
# YOUR_KEY_ID is the hash in front of `sec` in previous command. (for example sec 4096R/234FAA343232333 => key id is: 234FAA343232333)

kimobrian

import Ember from 'ember';

export default Ember.Component.extend({
  actions: {
     logMessage: function() {
         this.get('log')();
     }
  }
});

kimobrian

Keybase proof

I hereby claim:

• I am kimobrian on github.
• I am k6i (https://keybase.io/k6i) on keybase.
• I have a public key ASDNGucP5CPrEnuG2buZ2SXLNCfP66Q1hM2ecAwKRIui4wo

To claim this, I am signing this object:

kimobrian

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

kimobrian

Deploying from circleci2.0 to Heroku

Resources:

• circleci 2.0 docs
• Managing SSH Keys on Heroku

Steps:

Prerequisites:

• Heroku CLI installed on your computer
• A project deployed to Heroku

kimobrian

var express = require('express');
var app = express();
var webpack = require('webpack');
var path = require('path');

var compiler = webpack(require('./webpack.config.js'));

app.use(require('webpack-dev-middleware')(compiler, {
  noInfo: true,
  publicPath: '/'

kimobrian

import { ApolloClient } from 'apollo-client';
import { HttpLink } from 'apollo-link-http'; // HttpLink replaces createNetworkInterface

// Create client that connects to the server
const client = new ApolloClient({
  link: HttpLink({ uri: /* server URL */}),
})