runemadsen

Polymorphic Associations reversed

It's pretty easy to do polymorphic associations in Rails: A Picture can belong to either a BlogPost or an Article. But what if you need the relationship the other way around? A Picture, a Text and a Video can belong to an Article, and that article can find all media by calling @article.media

This example shows how to create an ArticleElement join model that handles the polymorphic relationship. To add fields that are common to all polymorphic models, add fields to the join model.

mkhatib

/**
* Generates number of random geolocation points given a center and a radius.
* @param  {Object} center A JS object with lat and lng attributes.
* @param  {number} radius Radius in meters.
* @param {number} count Number of points to generate.
* @return {array} Array of Objects with lat and lng attributes.
*/
function generateRandomPoints(center, radius, count) {
  var points = [];
  for (var i=0; i<count; i++) {

Vercoutere

I wrote a middleware class that sets a singleton "Context" based upon either a domain or subdomain. This was an untested class and was refactored for testing with some help from @adamwathan (https://gist.github.com/adamwathan/d8dd4ea5337eb3f975b8).

puckbag

<?php

require __DIR__ . '/vendor/autoload.php';

use GuzzleHttp\Client;
use GuzzleHttp\HandlerStack;
use GuzzleHttp\Handler\CurlFactory;
use GuzzleHttp\Handler\CurlHandler;
use GuzzleHttp\Handler\CurlMultiHandler;
use GuzzleHttp\Handler\EasyHandle;

rodrigoddalmeida

model = Repo.get!(Model, id)

Ecto.Changeset.change(model)
|> Ecto.Model.Timestamps.put_timestamp(:deleted_at, Ecto.DateTime, true)
|> Repo.update

lokhman

WARNING

May contain out of date information. Check the comments below!

The list of actions listed below was taken mostly from Book Of Zeus with minor modifications and did the job well for Ubuntu version, which was available at that moment (May 2016). This gist was created for internal use and was never meant to be discovered by the web, although Google managed to find and index this page, which was a great surprise for me. Please check the original source for the updated information (links are provided in most of the sections), and read the comments below: they provide more details about the usage experience.

System Updates

http://bookofzeus.com/harden-ubuntu/initial-setup/system-updates/

Keeping the system updated is vital before starting anything on your system. This will prevent people to use known vulnerabilities to enter in your system.

nerdyworm

#!/bin/bash

set -e

CURRENT_NAME="CurentName"
CURRENT_OTP="current_name"

NEW_NAME="NewName"
NEW_OTP="new_name"

CarlosEduardo

Multi-Tenancy (tenant) Strategy for Doctrine ORM

This gist is about using a Multi-Tenancy strategy for your Doctrine entities.

See: https://gist.github.com/CarlosEduardo/aedfa640e3f7f22451686fb7e57228e3

ahmadshah

Soft Delete Ecto Repo

The goal is to support soft delete functionality in Ecto.Repo. With the suggestion by @imranismail, another repo is created and the remaining functionalities are delegate to the original MyApp.Repo.

The new repo get/2 and all/1 functions will exclude the soft deleted record by default. delete/1 and delete_all/1 will update the delete_at column by default instead of deleting.

Example

MyApp.Repo.get(MyApp.User, 1) //will return nil if record is in soft delete state

ahmadshah

defmodule Randomizer do
  @moduledoc """
  Random string generator module.
  """
  
  @doc """
  Generate random string based on the given legth. It is also possible to generate certain type of randomise string using the options below:

  * :all - generate alphanumeric random string
  * :alpha - generate nom-numeric random string