在Ruby中，如何在层次结构中的特定级别运行对象的每个方法（而不是它继承的方法）？

Question

I am collecting tweets using a 'Twitter' gem, gem doc , github page . As it filters tweets according to a criteria, eg:

client.filter(locations: "-122.75,36.8,-121.75,37.8") do |tweet|
  puts tweet.text
end

A tweet object is produced from the stream;

(rdb:1) tweet.class
Twitter::Tweet

I can run tweet.methods to get the list of methods available but that includes methods not specific to the tweet api. It includes methods from Object etc. Since I would like to extract from this object all the tweet specific information to see it, is there a way to run all the methods from Class: Twitter::Tweet, from the list of 'Instance Method Summary' and 'Instance Attribute Summary' automatically without having to call each one individually? (I want to make a JSON of all the data in these tweet objects)

and can you explain what this means in terms of the oop paradigm in ruby- "Twitter::Tweet"? does it mean that the tweet object is part of the Twitter api and Tweet class?

Answer 1

For the first question: you can do it in a little not obvious way. Just ask for own methods of the class:

methods = tweet.class.instance_methods(false)

false parameter is important here, it removes all methods of parent classes. And as a consequence you can run all the methods from the returned list. For example:

methods.each{|method_name| tweet.send(method_name)}

For the second question: Twitter means a main module for all gem related classes, it uses in order to not mess global namespace with twitter-only-related classes.