pylebecq

What's the difference between cascade="remove" and orphanRemoval=true in Doctrine 2

TLDR: The cascade={"remove"} is like a "software" onDelete="CASCADE", and will remove objects from the database only when an explicit call to $em->remove() occurs. Thus, it could result in more than one object being deleted. orphanRemoval can remove objects from the database even if there was no explicit call to ->remove().

I answered this question a few times to different people so I will try to sum things up in this Gist.

Let's take two entities A and B as an example. I will use a OneToOne relationship in this example but it works exactly the same with OneToMany relationships.

class A

alanpeabody

defmodule MyApp do
  use Application

  def start(_type, _args) do
    import Supervisor.Spec, warn: false

    children = [
      Plug.Adapters.Cowboy.child_spec(:http, MyApp.Router, [], [
        dispatch: dispatch
      ])

gilbitron

APP_ENV=testing
APP_KEY=SomeRandomString

DB_CONNECTION=testing
DB_TEST_USERNAME=root
DB_TEST_PASSWORD=

CACHE_DRIVER=array
SESSION_DRIVER=array
QUEUE_DRIVER=sync

gunjanpatel

Revert the full commit

Sometimes you may want to undo a whole commit with all changes. Instead of going through all the changes manually, you can simply tell git to revert a commit, which does not even have to be the last one. Reverting a commit means to create a new commit that undoes all changes that were made in the bad commit. Just like above, the bad commit remains there, but it no longer affects the the current master and any future commits on top of it.

git revert {commit_id}

About History Rewriting

Delete the last commit

Deleting the last commit is the easiest case. Let's say we have a remote origin with branch master that currently points to commit dd61ab32. We want to remove the top commit. Translated to git terminology, we want to force the master branch of the origin remote repository to the parent of dd61ab32:

andrewstobbe

Mac OSX Sierra : Brew Apache + Mysql + PHP Switcher + DNSMasq + SSL 👍

Things I had to do using Homebrew to get my local web dev environment back up and running after migration to OSX Sierra + Xcode 8.1.

Note: I used brew reinstall because I had already installed most of this previously under Yosemite. Probably better ways to do this, but this is what worked for me.

brew doctor

brew tap homebrew/dupes
brew tap homebrew/versions

jniltinho

#!/bin/bash
### Install PHP 7.1 on CentOS 7.3 64Bits
### http://www.shaunfreeman.name/compiling-php-7-on-centos/
### https://www.howtoforge.com/tutorial/how-to-install-php-7-on-debian/


yum -y install git gcc gcc-c++ libxml2-devel pkgconfig openssl-devel bzip2-devel curl-devel libpng-devel libjpeg-devel 
yum -y install libXpm-devel freetype-devel gmp-devel libmcrypt-devel mariadb-devel aspell-devel recode-devel libpqxx-devel
yum -y install autoconf bison re2c libicu-devel libwebp-devel wget unzip net-tools libc-client-devel libpng12-devel
yum -y install libxslt-devel

MrPeker

let log = console.log;
console.log = function() {
    log("");
    log.apply(console, arguments);
    let info = new Error().stack.split('    at ')[2].trim().split(__dirname);
    log('-- from', '\x1b[33m', info[0].split(' (')[0], '\x1b[0m', 'at', '\x1b[33m', info[1], '\x1b[0m');
};

stinger

import Foundation
import Combine

enum APIError: Error, LocalizedError {
    case unknown, apiError(reason: String)

    var errorDescription: String? {
        switch self {
        case .unknown:
            return "Unknown error"