ProGM

Arel Cheatsheet on Steroids

A (more) complete cheatsheet for Arel, including NamedFunction functions, raw SQL and window functions.

Tables

posts = Arel::Table.new(:posts)
posts = Post.arel_table # ActiveRecord

Table alias

aitormagan

#EXTINF:-1,Nickelodeon
http://B29273.cdn.telefonica.com/29273/NICK_SUB.m3u8
#EXTINF:-1,Disney Junior
http://B29285.cdn.telefonica.com/29285/DSNJR_SUB.m3u8
#EXTINF:-1,40TV
http://B31312.cdn.telefonica.com/31312/40TV_SUB.m3u8
#EXTINF:-1,Disney XD
http://B31309.cdn.telefonica.com/31309/DSNYXD_SUB.m3u8
#EXTINF:-1,Canal Cocina
http://B31305.cdn.telefonica.com/31305/COCINA_SUB.m3u8

maxivak

Custom submit button in simple_form and bootstrap 3

Objective

It is easy to add wrappers for input components in simple_form, but it takes some time to modify rendering of buttons ("f.button").

We want to have this in our form:

= f.button :submit_cancel, 'Save'

albertbori

import Foundation

extension String
{
    var length: Int {
        get {
            return countElements(self)
        }
    }
    

franciscoj

gs -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=merged.pdf file1.pdf file2.pdf file3.pdf

# -q -dNOPAUSE -dBATCH -> means just quietly and close ghostscript after running
# -sOutputFile=merged.pdf is the merged file
# file1.pdf file2.pdf file3.pdf is the list of files thar are going to be merged.