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# All the places I used !! in a very sizable project | |
# (4 cases in 7600 LOC, about 40% of which is specs) | |
# ActiveRecord callback - writing to a DB: | |
def update_has_emailable_accounts! | |
# !! replaces "condition ? true : false" | |
self.update_attribute(:has_emailable_accounts, !!accounts.detect { |account| account.emailable? }) | |
end | |
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// invokes +callback+ on elements found by +selector+ that have an href property value | |
// equal to the current page (pathname). It is recommended to use a selector that selects | |
// anchor (a) elements. | |
function currentPage(selector, callback) { | |
$$(selector).each(function(e) { | |
if (e.href == document.URL) { | |
callback.call(null, e); | |
} | |
}) | |
} |
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/* | |
The shuttle is a 1-5 paged slideshow of elements with pagination and small dots | |
to indicate what page you are on. The slideshow auto-advances when you're not | |
using it, and a few other minor features. | |
Implemented with Prototype and Low Pro. | |
*/ | |
Shuttle = {}; | |
Shuttle.CurrentPage = 1; | |
Shuttle.AutoAdvanceTime = 0; |
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# this works fine, but it uses a local variable with no purpose | |
factorial = lambda do |n| | |
return 1 if n <= 1 | |
n * factorial.call(n - 1) | |
end | |
puts factorial.call(5) |
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module ActiveRecord | |
module NamedScope | |
# All subclasses of ActiveRecord::Base have two named \scopes: | |
# * <tt>all</tt> - which is similar to a <tt>find(:all)</tt> query, and | |
# * <tt>scoped</tt> - which allows for the creation of anonymous \scopes, on the fly: <tt>Shirt.scoped(:conditions => {:color => 'red'}).scoped(:include => :washing_instructions)</tt> | |
# | |
# These anonymous \scopes tend to be useful when procedurally generating complex queries, where passing | |
# intermediate values (scopes) around as first-class objects is convenient. | |
def self.included(base) | |
base.class_eval do |
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#map.invoices 'customers/invoices/:date_from/:date_to.:format', :controller => 'customers', :action => 'invoices', :format => 'html', :date_to => Date.today | |
map.invoices 'customers/invoices/:date_from', :controller => 'customers', :action => 'invoices', :format => 'html', :date_to => Date.today | |
map.invoices 'customers/invoices/:date_from/:date_to.:format', :controller => 'customers', :action => 'invoices', :format => 'html' | |
## OR MAYBE? ## | |
map.invoices 'customers/invoices/:date_from.:format', :controller => 'customers', :action => 'invoices', :format => 'html', :date_to => Date.today | |
map.invoices 'customers/invoices/:date_from/:date_to.:format', :controller => 'customers', :action => 'invoices', :format => 'html' | |
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def attributes=(attributes = {}) | |
attributes.each_pair do |k, v| | |
self.send("#{k}=", attributes.delete(k)) unless self.has_attribute?(k) | |
end | |
super(attributes) | |
end | |
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tmp_file_path('gateway', '/data/nginx_tmp') |
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module GoogleSearchHelper | |
def search_box_js | |
<<-GOOGLE_JS | |
<!-- Google CSE Search Box Begins --> | |
<form action="/search" id="cse-search-box"> | |
<input type="hidden" name="cx" value="YOUR CX VALUE" /> | |
<input type="hidden" name="cof" value="YOUR COF VALUE" /> | |
<input type="text" name="q" size="25" /> |
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>> ObjectSpace.each_object { } | |
=> 12212 | |
>> ObjectSpace.each_object { } | |
=> 12465 | |
>> ObjectSpace.each_object { } | |
=> 12718 | |
>> ObjectSpace.each_object { } | |
=> 12971 | |
>> ObjectSpace.each_object { } | |
=> 13224 |