benshimmin

# This probably isn't a good thing to want to do, but it came up for me,
# so in the spirit of helping others with weird problems (and because this
# seems to be documented almost nowhere):

after_save do
  
  if some_failing_condition
    errors.add(:something, "some failure happened.")
    raise ActiveRecord::RecordInvalid.new(self)
  end

benshimmin

You need Node, obviously, and JSDom. Then use it like this:

$ ./pathformer.js test.svg > test.out.svg

benshimmin

<?php
/* Caveat: I'm not a PHP programmer, so this may or may
 * not be the most idiomatic code...
 *
 * FPDF is a free PHP library for creating PDFs:
 * http://www.fpdf.org/
 */
require("fpdf.php");

class PDF extends FPDF {

benshimmin

-- adapted from <http://johnmacfarlane.net/pandoc/scripting.html>
import Text.Pandoc
import Text.Pandoc.Shared (stringify)

extractURL :: Inline -> [String]
extractURL (Link txt (u,_)) = [stringify txt ++ " : <" ++ u ++ ">"]
extractURL (Image _ (u,_)) = [u]
extractURL _ = []

extractURLs :: Pandoc -> [String]

benshimmin

# Assumptions:
# 1. $("#pdf-download") is something you can click on (not really required).
# 2. $(".result-page") is something in your existing page that you want to turn into a PDF.
# 3. You want to add a class of `pdf-rendered` to it and then specify some CSS which applies when that class is added.
# 4. Your CSS for `.pdf-rendered` specifies a useful width for a PDF (795px is pretty good) and anything else you like
#    (this is for portrait ("p") PDFs; obviously you'll need to make a few modifications for landscape PDFs!).

# How it works:
# 1. Take the requested element in your existing page, clone it, add a "pdf-rendered" class to it, and append to
#    the body.

benshimmin

$ /Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome -disable-prompt-on-repost &

benshimmin

Keybase proof

I hereby claim:

• I am benshimmin on github.
• I am benshimmin (https://keybase.io/benshimmin) on keybase.
• I have a public key ASBE3mlv4vBeRu2K3_PP63iNCM1RyV2Xx9pwCUI4QT0xSwo

To claim this, I am signing this object:

benshimmin

# This might not be the best way, it might be improved in more
# recent versions of Rails Admin, but this seems to work okay
# for me.

class SomeModel < ActiveRecord::Base

  enum :some_enum => {
    :some_key => 0
  }

benshimmin

// Sometimes you care about the order in which RequireJS-loaded modules
// are retrieved, and wish to execute a callback for each module in the
// order in which you originally specified them, rather than the order
// in which they are loaded.  You can do this with a queue.

var Queue = function() {
    
    var q,
        callCount = 0;
    

benshimmin

class Foo < ActiveRecord::Base
  
  scope :random_n, -> (n) { limit(n).order("RANDOM()") }

end

Foo.random_n(5) # -> five randomly chosen Foos

# For extra points, put this sort of thing into a Concern.