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-rw-r--r--ext/json/lib/json/add/date.rb34
1 files changed, 34 insertions, 0 deletions
diff --git a/ext/json/lib/json/add/date.rb b/ext/json/lib/json/add/date.rb
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+++ b/ext/json/lib/json/add/date.rb
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+unless defined?(::JSON::JSON_LOADED) and ::JSON::JSON_LOADED
+ require 'json'
+end
+require 'date'
+
+# Date serialization/deserialization
+class Date
+
+ # Deserializes JSON string by converting Julian year <tt>y</tt>, month
+ # <tt>m</tt>, day <tt>d</tt> and Day of Calendar Reform <tt>sg</tt> to Date.
+ def self.json_create(object)
+ civil(*object.values_at('y', 'm', 'd', 'sg'))
+ end
+
+ alias start sg unless method_defined?(:start)
+
+ # Returns a hash, that will be turned into a JSON object and represent this
+ # object.
+ def as_json(*)
+ {
+ JSON.create_id => self.class.name,
+ 'y' => year,
+ 'm' => month,
+ 'd' => day,
+ 'sg' => start,
+ }
+ end
+
+ # Stores class name (Date) with Julian year <tt>y</tt>, month <tt>m</tt>, day
+ # <tt>d</tt> and Day of Calendar Reform <tt>sg</tt> as JSON string
+ def to_json(*args)
+ as_json.to_json(*args)
+ end
+end