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-rw-r--r--config/initializers/alaveteli.rb1
-rw-r--r--lib/date_quarter.rb22
-rw-r--r--spec/lib/date_quarter_spec.rb29
3 files changed, 52 insertions, 0 deletions
diff --git a/config/initializers/alaveteli.rb b/config/initializers/alaveteli.rb
index c7672d05b..e909013aa 100644
--- a/config/initializers/alaveteli.rb
+++ b/config/initializers/alaveteli.rb
@@ -52,6 +52,7 @@ require 'alaveteli_localization'
require 'message_prominence'
require 'theme'
require 'xapian_queries'
+require 'date_quarter'
AlaveteliLocalization.set_locales(AlaveteliConfiguration::available_locales,
AlaveteliConfiguration::default_locale)
diff --git a/lib/date_quarter.rb b/lib/date_quarter.rb
new file mode 100644
index 000000000..ac159b420
--- /dev/null
+++ b/lib/date_quarter.rb
@@ -0,0 +1,22 @@
+module DateQuarter
+ extend self
+
+ def quarters_between(start_at, finish_at)
+ results = []
+
+ quarter_start = start_at.beginning_of_quarter
+ quarter_end = start_at.end_of_quarter
+
+ while quarter_end <= finish_at.end_of_quarter do
+ # Collect these
+ results << [quarter_start, quarter_end]
+
+ # Update dates
+ quarter_start = quarter_end + 1.second
+ quarter_end = quarter_start.end_of_quarter
+ end
+
+ results
+ end
+
+end
diff --git a/spec/lib/date_quarter_spec.rb b/spec/lib/date_quarter_spec.rb
new file mode 100644
index 000000000..29c2eb28d
--- /dev/null
+++ b/spec/lib/date_quarter_spec.rb
@@ -0,0 +1,29 @@
+require File.expand_path(File.dirname(__FILE__) + '/../spec_helper')
+
+describe DateQuarter do
+ include DateQuarter
+
+ describe :quarters_between do
+
+ it 'returns all the quarters in a year' do
+ # This is a bit of a convoluted spec, since we have to convert each
+ # Time in to an Integer to make a reasonable comparison
+ # See http://makandracards.com/makandra/1057-why-two-ruby-time-objects-are-not-equal-although-they-appear-to-be
+ start = Time.parse('2014-01-01')
+ finish = Time.parse('2014-12-31')
+
+ expected = [['Wed Jan 01 00:00:00 +0000 2014', 'Mon Mar 31 23:59:59 +0000 2014'],
+ ['Tue Apr 01 00:00:00 +0000 2014', 'Mon Jun 30 23:59:59 +0000 2014'],
+ ['Tue Jul 01 00:00:00 +0000 2014', 'Tue Sep 30 23:59:59 +0000 2014'],
+ ['Wed Oct 01 00:00:00 +0000 2014', 'Wed Dec 31 23:59:59 +0000 2014']].
+ map { |pair| [Time.parse(pair[0]).to_i, Time.parse(pair[1]).to_i] }
+
+ quarters_between(start, finish).each_with_index do |pair, i|
+ pair.map!(&:to_i)
+ pair.should == expected[i]
+ end
+ end
+
+ end
+
+end