undefined method `as_json' for Hash

[parkr]

Irked by this when using GeoRuby standalone to modify GeoJSON files.

/Users/parker/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/georuby-2.2.1/lib/geo_ruby/geojson.rb:40:in `as_json': undefined method `as_json' for #<Hash:0x007fb57a945958> (NoMethodError)
    from /Users/parker/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/georuby-2.2.1/lib/geo_ruby/geojson.rb:44:in `to_json'
    from /Users/parker/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/georuby-2.2.1/lib/geo_ruby/geojson.rb:70:in `to_json'
    from /Users/parker/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/georuby-2.2.1/lib/geo_ruby/geojson.rb:70:in `to_json'

Do I need ActiveSupport? ActiveModel? If so, how can I avoid it?

[darkside]

From the top of my head I'd say ActiveSupport core extensions. You can roll your own as_json for Hash, obviously.

[parkr]

It's just:

class Hash
  def as_json(opts = {})
    self
  end
end

ya? Seems like a a good idea to add that to this project in case we're not working with Active*.

[darkside]

Yup, we could have something like that as a default Hash extension if ActiveSupport (or the method) is not present.

[nofxx]

I've pushed some clean ups and changes. Please provide a use case @parkr , just need a spec to understand this part of the code ;)

[parkr]

@nofxx I was writing out GeoJSON, like so: https://github.com/parkr/would-patronize-again/blob/master/lib/patronize.rb

I got the above error when trying to turn the geographic information into GeoJSON and writing it out to a file.

[nofxx]

Hello @parkr, should be working fine now. (v2.5.1)
No need for ActiveWhatever, #to_json is from 'json' gem:

*>   {a: 1}.to_json
=> "{"a":1}"
>> JSON
=> JSON
>> ActiveSupport
NameError: uninitialized constant ActiveSupport
    from (irb):4
    from /usr/bin/irb:11:in `<main>'