Merge branch 'issues/1390-james-cheshire-infographic-wdtk' into wdtk

1 files changed, 22 insertions, 0 deletions

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