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@mabenson00
mabenson00 / cheatsheet.rb
Last active October 22, 2024 02:15
Rails Postgres ActiveRecord JSON cheatsheet
# Basic key operators to query the JSON objects :
# #> : Get the JSON object at that path (if you need to do something fancy)
# -> : Get the JSON object at that path (if you don't)
# ->> : Get the JSON object at that path as text
# {obj, n} : Get the nth item in that object
# https://www.postgresql.org/docs/9.4/functions-json.html#FUNCTIONS-JSONB-OP-TABLE
# Date
# date before today
@blelump
blelump / aws_signed_request_v4.rb
Last active December 8, 2022 15:51
Sample Ruby code to create AWS signed request version 4 (with request headers)
#Signing AWS Requests By Using Signature Version 4
#http://docs.aws.amazon.com/general/latest/gr/sigv4_signing.html
require 'uri'
require 'openssl'
require 'net/http'
require 'cgi'
method = 'GET'
service = 'iam'
#!/usr/bin/ruby
# Create display override file to force Mac OS X to use RGB mode for Display
# see http://embdev.net/topic/284710
require 'base64'
data=`ioreg -l -d0 -w 0 -r -c AppleDisplay`
edids=data.scan(/IODisplayEDID.*?<([a-z0-9]+)>/i).flatten
vendorids=data.scan(/DisplayVendorID.*?([0-9]+)/i).flatten