CODEWITHSUNDEEP
rubyrubygemsparameters
Elijah Murray
Elijah Murray

Reputation: 2172

Passing Params to Gem

I'm building my first gem. I'm trying to access all the parameters when a view loads, and then assign them to my module methods.

What should happen is when I visit appurl.com?name=elijah

and then run MyGem.name it should return elijah

Here's my gem

#my_gem/lib/my_gem.rb
module MyGem

    def self.name
      params[:name]
    end

end

How do I access the params of wherever I'm calling my gem from? Do I have to pass it in as a variable?

Upvotes: 0

Views: 247

Answers (1)

Nick Veys
Nick Veys

Reputation: 23959

Yes, you have to pass them into something in your gem. Your gem can't see the params method in ActionController.

What are you trying to accomplish? We may be able to suggest a better approach.

If you're just experimenting, try something like this:

module MyGem
  class Something

    def initialize(params)
      @params = params
    end

    def method_missing(symbol, *ids)
      @params[symbol] || super
    end

  end
end

This will pull items from the params hash given to it, if they are available as a symbol in the hash. So you could do something like:

x = MyGem::Something.new(params)
x.first_name
=> 'xyz'
x.last_name
=> 'abc'

Upvotes: 1

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