6873fc8026
Upgraded to Rails 2.0.2, except that we maintain vendor/rails/actionpack/lib/action_controller/routing.rb from Rail 1.2.6 (at least for now), so that Routes don't change. We still get to enjoy Rails's many new features. Also fixed a bug in Chunk-handling: disable WikiWord processing in tags (for real this time).
51 lines
1.7 KiB
Ruby
51 lines
1.7 KiB
Ruby
class Hash
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# Returns a JSON string representing the hash.
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#
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# Without any +options+, the returned JSON string will include all
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# the hash keys. For example:
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#
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# { :name => "Konata Izumi", 'age' => 16, 1 => 2 }.to_json
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#
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# {"name": "Konata Izumi", 1: 2, "age": 16}
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#
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# The keys in the JSON string are unordered due to the nature of hashes.
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#
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# The <tt>:only</tt> and <tt>:except</tt> options can be used to limit the
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# attributes included, and will accept 1 or more hash keys to include/exclude.
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#
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# { :name => "Konata Izumi", 'age' => 16, 1 => 2 }.to_json(:only => [:name, 'age'])
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#
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# {"name": "Konata Izumi", "age": 16}
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#
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# { :name => "Konata Izumi", 'age' => 16, 1 => 2 }.to_json(:except => 1)
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#
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# {"name": "Konata Izumi", "age": 16}
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#
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# The +options+ also filter down to any hash values. This is particularly
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# useful for converting hashes containing ActiveRecord objects or any object
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# that responds to options in their <tt>to_json</tt> method. For example:
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#
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# users = User.find(:all)
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# { :users => users, :count => users.size }.to_json(:include => :posts)
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#
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# would pass the <tt>:include => :posts</tt> option to <tt>users</tt>,
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# allowing the posts association in the User model to be converted to JSON
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# as well.
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def to_json(options = {}) #:nodoc:
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hash_keys = self.keys
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if options[:except]
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hash_keys = hash_keys - Array(options[:except])
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elsif options[:only]
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hash_keys = hash_keys & Array(options[:only])
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end
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returning result = '{' do
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result << hash_keys.map do |key|
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"#{ActiveSupport::JSON.encode(key)}: #{ActiveSupport::JSON.encode(self[key], options)}"
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end * ', '
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result << '}'
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end
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end
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end
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