alchimere

# Other syntax without patch
STUDENT_LEVELS = {
  freshman:  Student::Underclassman,
  sophomore: Student::Underclassman,
  junior:    Student::Upperclassman,
  senior:    Student::Upperclassman,
  graduate:  Student::Graduate
}.tap { |h| h.default = Student::Unregistered }

fiftin

1. Dump the data only sql to file
  $ pg_dump --data-only --inserts YOUR_DB_NAME > dump.sql
2. scp to local

3. Remove the SET statements at the top
  such as:
    SET statement_timeout = 0;
    SET client_encoding = 'SQL_ASCII';

4. Remove the setval sequence queries

bf4

Relevant Rails PRs

• rails/rails#16052
  • https://github.com/rails/rails/commit/9e42cf019f2417473e7dcbfcb885709fa2709f89
• https://github.com/rails/rails/commit/2c46d6db4feaf4284415f2fb6ceceb1bb535f278
• https://github.com/rails/rails/commit/39f2c3b3ea6fac371e79c284494e3d4cfdc1e929
• https://github.com/rails/rails/commit/bdc5141652770fd227455681cde1f9899f55b0b9
• https://github.com/rails/rails/commit/d26dd00854c783bcb1249168bb3f4adf9f99be6c

h/t to http://juanitofatas.com/2015/01/31/rails-5-active-record-or/ for some more useful links

maria-p

// transform cropper dataURI output to a Blob which Dropzone accepts
function dataURItoBlob(dataURI) {
    var byteString = atob(dataURI.split(',')[1]);
    var ab = new ArrayBuffer(byteString.length);
    var ia = new Uint8Array(ab);
    for (var i = 0; i < byteString.length; i++) {
        ia[i] = byteString.charCodeAt(i);
    }
    return new Blob([ab], { type: 'image/jpeg' });
}

mnylen

Using the new Safari View Controller from React Native application

• Safari View Controller is iOS 9 only. You need Xcode 7 (beta 2 currently) to use it

• React Native 0.6.0 is the minimum I got this working on

You might need to add this to your Info.plist in order for iOS 9 to load your application correctly:

<key>NSAppTransportSecurity</key>

50kudos

#!/bin/bash

cat $(find app/assets/stylesheets/ -type f) |
grep -Eo '\.[a-z]+[a-z0-9_-]*' | sort | uniq | sed s/.// |

while read CSS; do
  if ! grep -Erqi "([^(remove|has)]?class[(:|=|[:space:]*=>[:space:]*)]*[[:space:]\W]*[(\"|')]*[-a-z0-9[:space:]]*$CSS|\\.$CSS\b)" app/views/ vendor/assets/ app/assets/javascripts/; then
    echo $CSS >> unused.scss;
  fi
done

martinrusev

# Source 
#  http://www.iconoclastlabs.com/blog/ruby-on-rails-on-the-raspberry-pi-b-with-rbenv

git clone https://github.com/sstephenson/rbenv.git ~/.rbenv
echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bashrc
echo 'eval "$(rbenv init -)"' >> ~/.bashrc
git clone https://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build

sudo apt-get install autoconf bison build-essential libssl-dev libyaml-dev libreadline6 libreadline6-dev zlib1g zlib1g-dev
sudo apt-get install -y openssl libreadline6-dev git-core zlib1g libssl-dev

Integralist

const flattenTco = ([first, ...rest], accumulator) => 
  (first === undefined)
    ? accumulator
    : (Array.isArray(first))
      ? flattenTco([...first, ...rest])
      : flattenTco(rest, accumulator.concat(first))
  
const flatten = (n) => flattenTco(n, []);
  
console.log(flatten([[1,[2,[[3]]]],4,[5,[[[6]]]]]))

robertjpayne

#import <Foundation/Foundation.h>
#import "RCTBridgeModule.h"

#define RCT_EXTERN_MODULE(objc_name, objc_supername) \
  RCT_EXTERN_REMAP_MODULE(objc_name, objc_name, objc_supername)

#define RCT_EXTERN_REMAP_MODULE(js_name, objc_name, objc_supername) \
  objc_name : objc_supername \
  @end \
  @interface objc_name (RCTExternModule) <RCTBridgeModule> \

spieker

# This concern enables namespaces in Pundit. In order to use it, put this
# module into the `app/controllers/concerns` folder of your project and then
# include the module into the controller you want to namespace the policies in
# after the include of Pundit.
#
# To secify the namespace to use, overwrite the `pundit_namespace` method on
# your controller then.
#
# Example
# =======