X-Git-Url: https://git.njae.me.uk/?a=blobdiff_plain;f=vendor%2Frails%2Factivesupport%2Flib%2Factive_support%2Fjson%2Fencoders%2Fhash.rb;fp=vendor%2Frails%2Factivesupport%2Flib%2Factive_support%2Fjson%2Fencoders%2Fhash.rb;h=e38b4f3e16ee0a895c690872661c9735a9606249;hb=437aa336c44c74a30aeea16a06743c32747ed661;hp=0000000000000000000000000000000000000000;hpb=97a0772b06264134cfe38e7494f9427efe0840a0;p=feedcatcher.git
diff --git a/vendor/rails/activesupport/lib/active_support/json/encoders/hash.rb b/vendor/rails/activesupport/lib/active_support/json/encoders/hash.rb
new file mode 100644
index 0000000..e38b4f3
--- /dev/null
+++ b/vendor/rails/activesupport/lib/active_support/json/encoders/hash.rb
@@ -0,0 +1,46 @@
+class Hash
+ # Returns a JSON string representing the hash.
+ #
+ # Without any +options+, the returned JSON string will include all
+ # the hash keys. For example:
+ #
+ # { :name => "Konata Izumi", 'age' => 16, 1 => 2 }.to_json
+ # # => {"name": "Konata Izumi", "1": 2, "age": 16}
+ #
+ # The keys in the JSON string are unordered due to the nature of hashes.
+ #
+ # The :only and :except options can be used to limit the
+ # attributes included, and will accept 1 or more hash keys to include/exclude.
+ #
+ # { :name => "Konata Izumi", 'age' => 16, 1 => 2 }.to_json(:only => [:name, 'age'])
+ # # => {"name": "Konata Izumi", "age": 16}
+ #
+ # { :name => "Konata Izumi", 'age' => 16, 1 => 2 }.to_json(:except => 1)
+ # # => {"name": "Konata Izumi", "age": 16}
+ #
+ # The +options+ also filter down to any hash values. This is particularly
+ # useful for converting hashes containing ActiveRecord objects or any object
+ # that responds to options in their to_json method. For example:
+ #
+ # users = User.find(:all)
+ # { :users => users, :count => users.size }.to_json(:include => :posts)
+ #
+ # would pass the :include => :posts option to users,
+ # allowing the posts association in the User model to be converted to JSON
+ # as well.
+ def to_json(options = {}) #:nodoc:
+ hash_keys = self.keys
+
+ if except = options[:except]
+ hash_keys = hash_keys - Array.wrap(except)
+ elsif only = options[:only]
+ hash_keys = hash_keys & Array.wrap(only)
+ end
+
+ result = '{'
+ result << hash_keys.map do |key|
+ "#{ActiveSupport::JSON.encode(key.to_s)}: #{ActiveSupport::JSON.encode(self[key], options)}"
+ end * ', '
+ result << '}'
+ end
+end