Mike Wenger mwenger1

Joining a Rails Project Checklist

Getting My Bearings

Learn the data model with an ERD file
Browse the apps controllers and data model with Rails Panel
Learn about gems in the project with Gem Server
Deploy something to staging with Parity
Get to know your fellow developers with github insights

Starting a new project

Run react-native-template. Reference commit shaw in first commit message
react-native-git-upgrade
yarn upgrade interactive
Build app in xcode usine iphone SE (ensured well designed for smallest screen)
Add app icon images with generator-toolbox
Open Android emulator. /Users/janedo/Library/Android/sdk/tools/emulator -list-avds and then /Users/janedoe/Library/Android/sdk/tools/emulator -avd DEVICE_TYPE -netdelay none -netspeed full
Build app for Android react-native run-android. May need to create an android/local.properties file
Build app to personal iphone. May require [team provisioning profile](https://developer.apple.com/library/content/documentation/IDEs/Conceptual/App

C-b space => Swaps veritcal/horizontal Search with "/" and "?"

Vim

:b spec/  => recent files in buffer
:buffers => recently opened files
:Unlink => Delete files
:registers; "6p  => print sixth item in clipbard
zzCenter the current line within the window
ztBring the current line to the top of the window
zbBring the current line to the bottom of the window
ctrl+w, T = open pane in a new tab

Bash

wget -r -np -k http://sidekiq.org/ => Download Entire Website
:Ag spec/**/*file*
export RAILS_ENV=test => set env value temporarily
ls | wc -l # count number of lines
grep -e FactoryGirl **/*.rake **/*.rb -l | xargs sed -i "" "s|FactoryGirl|FactoryBot|" # replace words in specific files

Query Syntax

SELECT now() - query_start as "runtime", usename, datname, waiting, state, query
  FROM  pg_stat_activity
  WHERE now() - query_start > '2 minutes'::interval
 ORDER BY runtime DESC;

Migrations

Sandbox

babel-node
.editor

ES6

New Goodies

Polymorphic Relationship

  # db/migrate
  Picture
    t.integer :imageable_id
    t.string  :imageable_type
    OR
    t.references :imageable, polymorphic: true, index: true

  # models

	{
	"meta": {
	"limit": 20,
	"next": null,
	"offset": 0,
	"previous": null,
	"total_count": 2
	},
	"objects": [
	{

	[
	{
	"title": "Elixir & Phoenix in Production",
	"videoUrl": "https://embedwistia-a.akamaihd.net/deliveries/28fb24ee5c38509d8726d4214e65d1420c6e775c/file.mp4",
	"minutes": "18",
	"tags": [
	"Foundations",
	"Testing"
	],
	"description": "Elixir & Phoenix, so hot right now! On this week’s episode we’ll take a look at some of the great features of both Elixir and Phoenix through the lens of Bamboo, a library for sending emails in Phoenix apps, recently released by thoughtbot...",