AtulKsol

psql: FATAL: Peer authentication failed for user “postgres” (or any user)

The connection failed because by default psql connects over UNIX sockets using peer authentication, that requires the current UNIX user to have the same user name as psql. So you will have to create the UNIX user postgres and then login as postgres or use sudo -u postgres psql database-name for accessing the database (and psql should not ask for a password).

If you cannot or do not want to create the UNIX user, like if you just want to connect to your database for ad hoc queries, forcing a socket connection using psql --host=localhost --dbname=database-name --username=postgres (as pointed out by @meyerson answer) will solve your immediate problem.

But if you intend to force password authentication over Unix sockets instead of the peer method, try changing the following pg_hba.conf* line:

from

naps62

# spec/support/webpack.rb

module WebpackTestBuild
  TS_FILE = Rails.root.join("tmp", "webpack-spec-timestamp")
  class << self
    attr_accessor :already_built
  end

  def self.run_webpack
    puts "running webpack-test"

frankcleary

from concurrent.futures import ThreadPoolExecutor
from threading import BoundedSemaphore


class BoundedExecutor:
    """BoundedExecutor behaves as a ThreadPoolExecutor which will block on
    calls to submit() once the limit given as "bound" work items are queued for
    execution.

    :param bound: Integer - the maximum number of items in the work queue

primaryobjects

<div className='delete-button' onClick={() => { if (window.confirm('Are you sure you wish to delete this item?')) this.onCancel(item) } } />

withoutwax

Creating an API-Only Application with Ruby on Rails

01 - Create a new API-only Rails app

rails new ror-app-name --api

02 - Basic Scaffold

01 - Model

This step is for creating a very basic level of model for us to work in. If you know already, or wish to apply your own custom models with relationships you can skip this step.

theel0ja

<iframe src="https://view.officeapps.live.com/op/embed.aspx?src=https://calibre-ebook.com/downloads/demos/demo.docx" width="600" height="780" style="border: none;"></iframe>

steven2358

FFmpeg cheat sheet

A list of useful commands for the FFmpeg command line tool.

Download FFmpeg: https://www.ffmpeg.org/download.html

Full documentation: https://www.ffmpeg.org/ffmpeg.html

Basic conversion

pelted

ACTIVE_CLASS = 'is-active'.freeze

def active_for(options)
  name_of_controller = options.fetch(:controller) { nil }
  name_of_action     = options.fetch(:action) { nil }
  request_path       = options.fetch(:path) { nil }

  return ACTIVE_CLASS if request_path && request_path == request.path

  if name_of_controller == controller_name

mrmartineau

Stimulus cheatsheet

• Website: https://stimulusjs.org/
• GitHub repo: https://github.com/stimulusjs/stimulus
• Handbook: https://stimulusjs.org/handbook/introduction
• Discourse: https://discourse.stimulusjs.org/

Lifecycle callbacks

• initialize: once, when the controller is first instantiated
• connect: anytime the controller is connected to the DOM

ryanflorence

// Adds a lovely fade in of the modal
// and a gentle slide-down of the modal content
class Demo extends React.Component {
  state = { showDialog: false };
  render() {
    return (
      <div>
        <button onClick={() => this.setState({ showDialog: true })}>
          Show Dialog
        </button>