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Generate sitemap.xml in Rails app

This post shows how to make sitemap.xml for your web site. The sitemap will be accessible by URL http://mysite.com/sitemap.xml

Routes

Myrails::Application.routes.draw do

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<!-- Modified from https://gist.github.com/NicholasKimuli/2b167ca1c6ce03cb860e3f89d17db1eb 
Bonaire, Saba and Sint Eustatius may need a future flag update -->
<select class="input-block-level" id="countryCode" name="countryCode">
        <option data-countryCode="AF" value="93">&#x1F1E6&#x1F1EB Afghanistan (+93)</option>
        <option data-countryCode="AL" value="355">&#x1F1E6&#x1F1FD Albania (+355)</option>
        <option data-countryCode="DZ" value="213">&#x1F1E9&#x1F1FF Algeria (+213)</option>
        <option data-countryCode="AD" value="376">&#x1F1E6&#x1F1E9 Andorra (+376)</option>
        <option data-countryCode="AO" value="244">&#x1F1E6&#x1F1F4 Angola (+244)</option>
        <option data-countryCode="AI" value="1264">&#x1F1E6&#x1F1EE Anguilla (+1264)</option>
        <option data-countryCode="AG" value="1268">&#x1F1E6&#x1F1EC Antigua &amp; Barbuda (+1268)</option>

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source "https://rubygems.org"

gem "progressbar"

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ruby '2.7.1'

gem 'rails', github: 'rails/rails'
gem 'tzinfo-data', '>= 1.2016.7'  # Don't rely on OSX/Linux timezone data

# Action Text
gem 'actiontext', github: 'basecamp/actiontext', ref: 'okra'
gem 'okra', github: 'basecamp/okra'

# Drivers

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<!-- start Gist JS code-->
<script>
(function(){
  var loadEvent = 'turbolinks:load';
  var unloadEvent = 'turbolinks:before-visit';
  var loadHandler = function() {
    document.removeEventListener(loadEvent, loadHandler);
    document.addEventListener(unloadEvent, unloadHandler);
    setTimeout(function () {
      // Replace WORKSPACE_ID text with your Workspace ID

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PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

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Webpack in Rails

All code is available in example app - https://github.com/maxivak/webpacker-rails-example-app

Table of Contents

• NPM and Yarn
• Webpack and Webpacker

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How to setup Let's Encrypt for Nginx on Ubuntu 18.04 (including IPv6, HTTP/2 and A+ SLL rating)

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Virtual hosts

Let's say you want to host domains first.com and second.com.

Create folders for their files:

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<template>
  <div>
    <vue-editor v-model="content" ref="editor" :editor-options="toolbarOptions" @text-change="updateValue" useCustomImageHandler @imageAdded="uploadImage"></vue-editor>
  </div>
</template>

<script>
import Vue from "vue";
import axios from 'axios'
let VueEditor, Quill;

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require 'pathname'
require 'open3'
require 'mini_magick'

SRC_DIR = '/path/to/src/dir/'.freeze
TMP_DIR = '/path/to/tmp/dir/'.freeze

class TextReader
  def initialize(input_path, output_path)
    @input_path  = input_path