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@zampino
zampino / struct_extension.ex
Last active July 20, 2022 00:32
Elixir Extending a Struct
defmodule DSL do
defmacro extend_struct struct_mod, keyword do
quote do
defstruct Keyword.merge(Map.to_list(Map.from_struct(unquote(struct_mod).__struct__)), unquote(keyword))
end
end
end
@khakimov
khakimov / gist:3558086
Created August 31, 2012 19:49
Matrix Effect in you terminal
echo -e "\e[1;40m" ; clear ; while :; do echo $LINES $COLUMNS $(( $RANDOM % $COLUMNS)) $(( $RANDOM % 72 )) ;sleep 0.05; done|awk '{ letters="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789@#$%^&*()"; c=$4; letter=substr(letters,c,1);a[$3]=0;for (x in a) {o=a[x];a[x]=a[x]+1; printf "\033[%s;%sH\033[2;32m%s",o,x,letter; printf "\033[%s;%sH\033[1;37m%s\033[0;0H",a[x],x,letter;if (a[x] >= $1) { a[x]=0; } }}'
@lexmag
lexmag / article.rb_product.rb
Created July 28, 2012 15:12
Two-way polymorphic models / Polymorphic HABTM association
class Article < ActiveRecord::Base # Product class is similar
belongs_to :user
has_many :media, as: :ownable
with_options through: :media, source: :representable do |assn|
assn.has_many :videos, source_type: 'Video'
assn.has_many :images, source_type: 'Image'
end
end