Manh Pham Van (Opn VN - Dev Manager) manhpham90vn

PostgreSQL is Enough

Background and Cron Jobs

Xcode deinit breakpoint for UIViewController

This breakpoint provides an easy way to track view controller deinitialization (deallocation) in UIKit-based applications. This can help finding memory leaks caused by retain cycles preventing view controllers from being deinitialized when dismissed or popped.

From Cédric Luthi's tweet in 2017:

Useful Xcode breakpoint. When you dismiss a controller and you don’t hear the pop sound (or see the log), you probably have a retain cycle.

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#Steps to install latest Laravel, LEMP on AWS Ubuntu 16.4 version. This tutorial is the improvised verision of this tutorial on Digitalocean based on my experience.

Install PHP 7.2 on Ubuntu

Run the following commands in sequence.

sudo apt-get install -y language-pack-en-base
sudo LC_ALL=en_US.UTF-8 add-apt-repository ppa:ondrej/php
sudo apt-get update
sudo apt-get install zip unzip

	#!/usr/bin/env bash

	# Author: @11808s8 - Adriano
	# Email: [email protected]
	# Version: 1.1.0 - 07/04/2020
	#
	# @TODO: Refactor this, breaking parts into modules
	# and include more comments/User feedbacks
	#
	# @TODO: Remove hardcoded credentials

	class PageViewController: UIPageViewController {
	override func setViewControllers(_ viewControllers: [UIViewController]?, direction: UIPageViewController.NavigationDirection, animated: Bool, completion: ((Bool) -> Void)? = nil) {
	super.setViewControllers(viewControllers, direction: direction, animated: animated) { (isFinished) in
	if isFinished && animated {
	DispatchQueue.main.async {
	super.setViewControllers(viewControllers, direction: direction, animated: false, completion: nil)
	}
	}

	completion?(isFinished)

	// based on http://stackoverflow.com/questions/13017257/how-do-you-determine-spacing-between-cells-in-uicollectionview-flowlayout https://github.com/mokagio/UICollectionViewLeftAlignedLayout

	import UIKit
	extension UICollectionViewLayoutAttributes {
	func leftAlignFrame(with sectionInset:UIEdgeInsets){
	var tempFrame = frame
	tempFrame.origin.x = sectionInset.left
	frame = tempFrame
	}
	}

	// for multiple requests
	let isRefreshing = false;
	let failedQueue = [];

	const processQueue = (error, token = null) => {
	failedQueue.forEach(prom => {
	if (error) {
	prom.reject(error);
	} else {
	prom.resolve(token);

	/**
	* Used as a wrapper for data that is exposed via a LiveData that represents an event.
	*/
	open class Event<out T>(private val content: T) {

	var hasBeenHandled = false
	private set // Allow external read but not write

	/**
	* Returns the content and prevents its use again.

	for (key, value) in UserDefaults.standard.dictionaryRepresentation() {
	print("\(key) = \(value) \n")
	}