1dolinski

require 'rubygems'
require 'mongo'
require 'pry'
require 'win32ole'

db = Mongo::Connection.new.db("test")
x = db['text']

1dolinski

require 'win32ole'

#check if there is an excel application open
	#yes
		#check through the open excel applications, see if one of the tab names is the same as the one specified in the parameter
			#yes
				#set that workbook and that sheet equal to the variables @wb and @ws1
			#no
				#create a new workbook, delete all of the pages except "Sheet1", rename "Sheet1" to "openxls"
	#no

1dolinski

require 'win32ole'

#check if there is an excel application open
  #yes
		#check through the open excel applications, see if one of the tab names is the same as the one specified in the parameter
			#yes
				#set that workbook and that sheet equal to the variables @wb and @ws1
			#no
				#create a new workbook, delete all of the pages except "Sheet1", rename "Sheet1" to "openxls"
	#no

1dolinski

require 'win32ole'

#check if there is an excel application open
	#yes
		#check through the open excel applications, see if one of the tab names is the same as the one specified in the parameter
			#yes
				#set that workbook and that sheet equal to the variables @wb and @ws1
			#no
				#create a new workbook, delete all of the pages except "Sheet1", rename "Sheet1" to "openxls"
	#no

1dolinski

require 'win32ole'

#check if there is an excel application open
  #yes
    #check through the open excel applications, see if one of the tab names is the same as the one specified in the parameter
      #yes
        #set that workbook and that sheet equal to the variables @wb and @ws1
      #no
        #create a new workbook, delete all of the pages except "Sheet1", rename "Sheet1" to "openxls"
  #no

1dolinski

<%= form_tag("/search", :method => "get") do %>
  <%= label_tag(:q, "Search for:") %>
  <%= text_field_tag(:q) %>
  <%= submit_tag("Search") %>
<% end %>
This will generate the following HTML:

<form accept-charset="UTF-8" action="/search" method="get">
  <label for="q">Search for:</label>
  <input id="q" name="q" type="text" />

1dolinski

require 'string_score/ext/string'

"JAMES DOWNY".downcase.score("Downy, James".downcase)

#=> 0

"JAMES DOWNY".downcase.score("James Downy".downcase)
#=> 1

1dolinski

w = [[2],[1],[3]]
#=> [[2], [1], [3]]
x = w.dup
#=> [[2], [1], [3]]

x.each do |a|
  a << 1
end

1dolinski

Now you know the fundamental requirement for thread-safe code: mutation of shared state must be done atomically. Any time you change a variable that is shared by many threads, it needs to be done atomically. Unfortunately Ruby and most other mainstream languages only give you one tool to do this: the lock aka the mutex.

Mutex is short for “mutual exclusion” as in “only one thread can be executing this code at a time”. Usage is simple:

@mutex = Mutex.new
@mutex.synchronize do
  i += 1
end

1dolinski

y = 3
if y != 2 || y != 4
puts "ok"
end

# => "ok"

# Is there a way to shorten this?