Sha256: 4af9afb9a1c29d8851800154d3d4ed4b48df50a3ce3a562769360f1aad139165
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Size: 1.87 KB
Versions: 10
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Stored size: 1.87 KB
Contents
module java::util::Map #:nodoc: # 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 <tt>:only</tt> and <tt>:except</tt> 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 <tt>to_json</tt> method. For example: # # users = User.find(:all) # { :users => users, :count => users.size }.to_json(:include => :posts) # # would pass the <tt>:include => :posts</tt> option to <tt>users</tt>, # allowing the posts association in the User model to be converted to JSON # as well. def to_json(options = {}) #:nodoc: hash = as_json(options) return ActiveSupport::JSON.encode(hash, options) if hash != self result = '{' result << hash.map do |key, value| "#{ActiveSupport::JSON.encode(key.to_s)}:#{ActiveSupport::JSON.encode(value, options)}" end * ',' result << '}' end def as_json(options = nil) #:nodoc: if options if attrs = options[:except] except(*Array.wrap(attrs)) elsif attrs = options[:only] slice(*Array.wrap(attrs)) else self end else self end end end
Version data entries
10 entries across 10 versions & 1 rubygems