Dan Bridges dbridges

## CustomSortFilterProxyModel.py
from PySide import QtGui

class CustomSortFilterProxyModel(QtGui.QSortFilterProxyModel):
    """
    Implements a QSortFilterProxyModel that allows for custom
    filtering. Add new filter functions using addFilterFunction().
    New functions should accept two arguments, the column to be
    filtered and the currently set filter string, and should
    return True to accept the row, False otherwise.

## comments_list.html.slim
h1 Comments

.comment-list data-controller="comment-list"
  ul.comments-list data-target="comment-list.commentList"
    = render @comments

  = form_with model: Comment.new, html: { data: { type: "html", action: "ajax:success->comment-list#onPostSuccess" } } do |form|
    = form.text_area :message, data: { target: "comment-list.message" }
    = form.submit "Post Comment"

## comments_controller.rb
class CommentsController < ApplicationController
  def index
    @comments = Comment.all
  end

  def create
    @comment = current_user.comments.create(comment_params)
    render @comment
  end

## comment_list_controller.js
import { Controller } from "stimulus";

export default class extends Controller {
  static targets = ["message", "commentList"]

  onPostSuccess(event) {
    let [data, status, xhr] = event.detail;
    this.commentListTarget.innerHTML += xhr.response;
    this.messageTarget.value = "";
  }

## create.js.erb
$(".comment-list").append("<%= j render(@comment) %>");
$(".comment-list form textarea").val("");

## birth_counts_mother_age_2002_2016.csv

          
            year
            age
            births
            population
            adjustedBirths

            
              2003
              15
              17520
              2032351
              0.862055816

            
              2003
              16
              38152
              2012581
              1.895675255

            
              2003
              17
              64671
              2015547
              3.208607887

            
              2003
              18
              93595
              2032257
              4.605470666

            
              2003
              19
              116222
              1993831
              5.829079797

            
              2003
              20
              115473
              2010652
              5.743062449

            
              2003
              21
              103090
              2031746
              5.073961017

            
              2003
              22
              94870
              2057360
              4.611249368

            
              2003
              23
              86886
              2048153
              4.242163549

## _comment.html.slim
- # app/views/comments/_comment.html.slim

li data-controller="comment" data-action="click->comment#hello"
  = "#{comment.message} by #{comment.user.email}"

## feed_urls.go
var feedURLs = []string{
 "https://blog.golang.org/feed.atom",
 "http://feeds.kottke.org/main",
}

## feed_fetch.go
type feedResult struct {
	feed *Feed
	err error
}

func fetchFeeds(urls []string) ([]*Feed) {
	// Create a channel to process the feeds
	feedc := make(chan feedResult, len(urls))

	// Start a goroutine for each feed url

## sample_atom.xml
<?xml version="1.0" encoding="utf-8"?>

<feed xmlns="http://www.w3.org/2005/Atom">

	<title>Example Feed</title>
	<subtitle>A subtitle.</subtitle>
	<link href="http://example.org/feed/" rel="self" />
	<link href="http://example.org/" />
	<id>urn:uuid:60a76c80-d399-11d9-b91C-0003939e0af6</id>
	<updated>2003-12-13T18:30:02Z</updated>
	from PySide import QtGui

	class CustomSortFilterProxyModel(QtGui.QSortFilterProxyModel):
	"""
	Implements a QSortFilterProxyModel that allows for custom
	filtering. Add new filter functions using addFilterFunction().
	New functions should accept two arguments, the column to be
	filtered and the currently set filter string, and should
	return True to accept the row, False otherwise.
	h1 Comments

	.comment-list data-controller="comment-list"
	ul.comments-list data-target="comment-list.commentList"
	= render @comments

	= form_with model: Comment.new, html: { data: { type: "html", action: "ajax:success->comment-list#onPostSuccess" } } do \|form\|
	= form.text_area :message, data: { target: "comment-list.message" }
	= form.submit "Post Comment"
	class CommentsController < ApplicationController
	def index
	@comments = Comment.all
	end

	def create
	@comment = current_user.comments.create(comment_params)
	render @comment
	end
	import { Controller } from "stimulus";

	export default class extends Controller {
	static targets = ["message", "commentList"]

	onPostSuccess(event) {
	let [data, status, xhr] = event.detail;
	this.commentListTarget.innerHTML += xhr.response;
	this.messageTarget.value = "";
	}
	$(".comment-list").append("<%= j render(@comment) %>");
	$(".comment-list form textarea").val("");
year	age	births	population	adjustedBirths
2003	15	17520	2032351	0.862055816
2003	16	38152	2012581	1.895675255
2003	17	64671	2015547	3.208607887
2003	18	93595	2032257	4.605470666
2003	19	116222	1993831	5.829079797
2003	20	115473	2010652	5.743062449
2003	21	103090	2031746	5.073961017
2003	22	94870	2057360	4.611249368
2003	23	86886	2048153	4.242163549
	- # app/views/comments/_comment.html.slim

	li data-controller="comment" data-action="click->comment#hello"
	= "#{comment.message} by #{comment.user.email}"
	var feedURLs = []string{
	"https://blog.golang.org/feed.atom",
	"http://feeds.kottke.org/main",
	}
	type feedResult struct {
	feed *Feed
	err error
	}

	func fetchFeeds(urls []string) ([]*Feed) {
	// Create a channel to process the feeds
	feedc := make(chan feedResult, len(urls))

	// Start a goroutine for each feed url
	<?xml version="1.0" encoding="utf-8"?>

	<feed xmlns="http://www.w3.org/2005/Atom">

	<title>Example Feed</title>
	<subtitle>A subtitle.</subtitle>
	<link href="http://example.org/feed/" rel="self" />
	<link href="http://example.org/" />
	<id>urn:uuid:60a76c80-d399-11d9-b91C-0003939e0af6</id>
	<updated>2003-12-13T18:30:02Z</updated>