mwenger1

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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

mwenger1

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

mwenger1

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

mwenger1

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

mwenger1

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

mwenger1

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

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Sandbox

babel-node
.editor

ES6

New Goodies

mwenger1

[
  {
    "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...",

mwenger1

Polymorphic Relationship

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

  # models