From 0b9abf84ccf951ef9bf3e0443f9f6fd0dbf27c9f Mon Sep 17 00:00:00 2001
From: Angus McLeod <angus@mcleod.org.au>
Date: Wed, 11 Sep 2019 19:53:51 +1000
Subject: [PATCH] Add support for date variable in field interpolation

---
 lib/builder.rb | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/lib/builder.rb b/lib/builder.rb
index 018fd7ff..f6d426b4 100644
--- a/lib/builder.rb
+++ b/lib/builder.rb
@@ -53,7 +53,21 @@ class CustomWizard::Builder
       result
     end
 
-    result.gsub(/w\{(.*?)\}/) { |match| recurse(data, [*$1.split('.')]) }
+    result = result.gsub(/w\{(.*?)\}/) { |match| recurse(data, [*$1.split('.')]) }
+    
+    result.gsub(/v\{(.*?)\}/) do |match|
+      attrs = $1.split(':')
+      key = attrs.first
+      format = attrs.length > 1 ? attrs.last : nil
+      v = nil
+      
+      if key == 'time'
+        time_format = format.present? ? format : "%B %-d, %Y"
+        v = Time.now.strftime(time_format)
+      end
+      
+      v
+    end
   end
   
   def self.recurse(data, keys)