如何將數組作爲分隔參數傳遞給方法

Question

這似乎與我需要的接近，但它對我無效。

Achieving `call_user_func_array` in Ruby

我作爲恆

TYPE = %w(:groups :projects) 

我在具有

enumerize :list_type, in: %w(groups projects), scope: :type 

所以按照文檔GitHub的網頁上我的RelatedList模型中使用https://github.com/brainspec/enumerize，

列表

RelatedList.type(:groups) # returns all RelatedList of type 'groups' 

不過，我想包含在我的不斷TYPE

所有RelatedList所以我試圖

RelatedList.type(TYPE) # doesn't work 
RelatedList.send(:type, TYPE) # doesn't work 
RelatedList.send(:type, *TYPE) # doesn't work. 

RelatedList.type預計爲符號的獨立參數列表，但我有什麼是符號的陣列。

我該如何做到這一點？

---

根據DNNX請求在下面的回答中，這裏是完整的回溯。

NoMethodError: undefined method `value' for nil:NilClass 
    from /Users/kw/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/bundler/gems/enumerize-bc01a5cb3c79/lib/enumerize/activerecord.rb:34:in `block (2 levels) in _define_scope_methods!' 
    from /Users/kw/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/bundler/gems/enumerize-bc01a5cb3c79/lib/enumerize/activerecord.rb:34:in `map' 
    from /Users/kw/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/bundler/gems/enumerize-bc01a5cb3c79/lib/enumerize/activerecord.rb:34:in `block in _define_scope_methods!' 
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    from /Users/kw/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/zeus-0.13.3/lib/zeus.rb:73:in `block in go' 
    from /Users/kw/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/zeus-0.13.3/lib/zeus.rb:62:in `loop' 
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Answer 1

... 我有什麼是符號數組

不，不是。這個TYPE = %w(:groups :projects)是兩個字符串':groups'和':projects'的數組，而不是符號數組。

試試這個：

TYPE = %w(groups projects) 
RelatedList.type(*TYPE) 

或者，如果你是幸運的，關於Ruby 2.0.0運行你的應用程序，使用符號數組文本：

TYPE = %i(groups projects) 
#=> [:groups, :projects]