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Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

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class UserProfile < ActiveRecord::Base
  has_attached_file :picture,
    styles: {
      original: {geometry: '1000x0>'},
      thumb: '100x100#',
      large: '300x200>',
    },
    convert_options: {large: "-quality 80 -strip -interlace Plane"},
    default_url: "http://s3-ap-southeast-1.amazonaws.com/#{ENV["S3_BUCKET"]}/user_profiles/placeholder.png",
    path: (Rails.env == 'test' || Rails.env == 'development') ? ":rails_root/public/images/:class/:id/:style/:filename" : "/:class/:id/:style/:filename",

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My Elasticsearch cheatsheet with example usage via rest api (still a work-in-progress)

Shortlinks:

• Cluster Health
  • Index Level
  • Shard Level
• Nodes Overview
• Indices Overview
• Cluster Maintenance

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.sour-tropical-gradient { background: -webkit-linear-gradient(90deg, #FD6F46 10%, #FB9832 90%); /* Chrome 10+, Saf5.1+ */ background: -moz-linear-gradient(90deg, #FD6F46 10%, #FB9832 90%); /* FF3.6+ */ background: linear-gradient(90deg, #FD6F46 10%, #FB9832 90%); /* W3C */ }
.subtle-gray-gradient { background: -webkit-linear-gradient(90deg, #dee1e1 10%, #f4f4f4 90%); /* Chrome 10+, Saf5.1+ */ background: -moz-linear-gradient(90deg, #dee1e1 10%, #f4f4f4 90%); /* FF3.6+ */ background: linear-gradient(90deg, #dee1e1 10%, #f4f4f4 90%); /* W3C */ }
.epic-bluegreen-gradient { background: -webkit-linear-gradient(90deg, #01a99c 10%, #0698b1 90%); /* Chrome 10+, Saf5.1+ */ background: -moz-linear-gradient(90deg, #01a99c 10%, #0698b1 90%); /* FF3.6+ */ background: linear-gradient(90deg, #01a99c 10%, #0698b1 90%); /* W3C */ }
.golden-face-gradient { background: -webkit-linear-gradient(90deg, #8e7a3f 10%, #b09a51 90%); /* Chrome 10+, Saf5.1+ */ background: -o-linear-gradient(90deg, #8e7a3f 10%, #b09a51 90%); /* Opera 11.

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options = { :body => 
  { :username => 'my',
    :password => 'password' 
  }
}
results = HTTParty.post("http://api.topcoder.com/v2/auth", options)

##
## example for post with papertrail and basic auth
##

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#!/bin/bash

RBENV_LOC=$HOME/.rbenv

if [ -d $RBENV_LOC ]; then
  rm -rf $RBENV_LOC
fi

echo 'Cloning rbenv...'
git clone --depth 1 -q https://github.com/rbenv/rbenv.git $RBENV_LOC

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bundle add devise
bundle install

rails g devise:install

class TurboDeviseController < ApplicationController
  class Responder < ActionController::Responder
    def to_turbo_stream
      controller.render(options.merge(formats: :html))
    rescue ActionView::MissingTemplate => error

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Layout/AccessModifierIndentation:
  Enabled: true

Layout/AlignHash:
  Enabled: true
  EnforcedColonStyle: key
  EnforcedLastArgumentHashStyle: always_inspect

Layout/AlignParameters:
  Enabled: true

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Run rails new --help to view all of the options you can use to generate new Rails application:

Output for Rails 6+

Usage:
  rails new APP_PATH [options]

Options:
      [--skip-namespace], [--no-skip-namespace]              # Skip namespace (affects only isolated applications)

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Ruby on Rails Cheatsheet

Architecture

Create a new application

Install the Rails gem if you haven't done so before