Skip to content

Instantly share code, notes, and snippets.

View francisbrito's full-sized avatar
💭
💻 🌴 🇩🇴

Francis Brito francisbrito

💭
💻 🌴 🇩🇴
View GitHub Profile
@NigelEarle
NigelEarle / Knex-Migrations-Seeding.md
Last active October 31, 2024 18:18
Migration and seeding instructions using Knex.js!

Migrations & Seeding

What are migrations??

Migrations are a way to make database changes or updates, like creating or dropping tables, as well as updating a table with new columns with constraints via generated scripts. We can build these scripts via the command line using knex command line tool.

To learn more about migrations, check out this article on the different types of database migrations!

Creating/Dropping Tables

@jayphelps
jayphelps / batchsampling.js
Last active August 18, 2022 23:27
Batch Sampling Example from my talk, Real-time Insights, powered by Reactive Programming
let buffer = getWebSocket()
.bufferTime(1000);
let gate = new BehaviorSubject(true);
let batchSize = 50;
let batchSizeCounter = 0;
let results = gate
.switchMap(enabled => enabled ? buffer : Observable.never())
.do(buffer => {

Git Cheat Sheet

Add & Commit

git init
Inicializa un repositorio.

git status
Muestra cuál es el estado actual del proyecto (qué archivos han sido modificados, cuáles están en el directorio de trabajo y cuáles en el stage area).

git add [file] ó git add --all
Agrega archivos al stage area.

@jacobian
jacobian / models.py
Created February 15, 2011 18:11
An example of using many-to-many "through" to augment m2m relationships. See http://www.quora.com/How-do-you-query-with-a-condition-on-a-ManyToMany-model-in-Django for context.
from django.db import models
class Person(models.Model):
name = models.CharField(max_length=200)
groups = models.ManyToManyField('Group', through='GroupMember', related_name='people')
class Meta:
ordering = ['name']
def __unicode__(self):