Hive profile

davidpm

@davidpm

quick posts about programming

226 followers 20 following 17 posts Reputation 44.27

davidpm
@davidpm Aug 9, 2019, 3:01 AM UTC

Disabling dangerous redis commands in Production redux

I recently read a great article from Honeybadger that muses on what could happen to a production environment if a fat fingered developer did something like: Redis.current.flushdb. This scared me enou…

1 upvotes 1 replies $0.00
davidpm
@davidpm Sep 4, 2018, 9:30 PM UTC

Heuristics on the Practice of Programming

### A Living List What follows is a living list of heuristics I've come to internalize over the years as a developer. My goal is to periodically add to this list. Consider it a repository of programm…

6 upvotes 2 replies $0.01
davidpm
@davidpm Jul 7, 2018, 7:02 AM UTC

Git Interactive Rebase to Alter Commits

Do you have skeletons in your git history? Maybe you want to re-write that history? I know I've been down that road, and since I've had to look up how to do this several times I thought it was high t…

2 upvotes 0 replies $0.00
davidpm
@davidpm Jun 3, 2018, 9:06 PM UTC

Dropping Into B-trees

My recent (and only) RailsConf talk: https://www.youtube.com/watch?v=17XecHy9Pzg

3 upvotes 0 replies $0.00
davidpm
@davidpm Jun 3, 2018, 6:55 AM UTC

Create a command-line gem from scratch with Thor (part two)

This is the last in a two-part post on creating a Ruby cli gem from scratch. Part one found here. --- Picking up from our last post, we want to start working on our user interface. In this case we wa…

3 upvotes 0 replies $0.00
davidpm
@davidpm Jun 3, 2018, 6:17 AM UTC

Create a command-line gem from scratch with Thor

This is the first in a two-part post on creating a Ruby command-line gem from scratch. Part two found here. --- Let's write a command-line interface (cli) as a Ruby gem. We need the gem to do somethi…

2 upvotes 1 replies $0.00
davidpm
@davidpm May 29, 2018, 1:28 AM UTC

Blockchain Proof of Concept

If you are a programmer and have been hearing all of the fuss about THE BLOCKCHAIN but haven't yet looked into it, and were looking for a starting point, this is the post for you! Feel free to skip t…

2 upvotes 0 replies $0.00
davidpm
@davidpm Mar 6, 2018, 7:25 PM UTC

SQL Cheat Sheet

SQL can do a lot: data insertion, querying, updating and deleting, schema creation and modification, and data access control. I have to look up this stuff more often than I'd like to admit. How do I…

0 upvotes 0 replies $0.00
davidpm
@davidpm Mar 6, 2018, 5:09 AM UTC

Bootstrap with Rails and Postgres

> rails new app_name ...gives you all you need to get started developing an application, notably using SQLite as the default datastore. I've always worked with Postgresql (postgres) since I starte…

3 upvotes 2 replies $1.79
davidpm
@davidpm Mar 5, 2018, 2:08 AM UTC

REGEX Multiline Anchors

Ever try out a regular expression on rubular, stick it in your model: MEH_REGEX = /^(?=.*[a-zA-Z])(?=.*[0-9]).{8,}$/ ...start up your test suite and see this error? The provided regular expression is…

3 upvotes 1 replies $1.72