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##
## Author: Jose Gonzalez - https://github.com/josegonzalez
## Source URL: https://github.com/josegonzalez/josediazgonzalez.com/blob/master/_plugins/iterator.rb
##
#module Jekyll
#class Site
#alias_method :orig_site_payload, :site_payload
## Constuct an array of hashes that will allow the user, using Liquid, to
## iterate through the keys of _kv_hash_ and be able to iterate through the
## elements under each key.
##
## Example:
## categories = { 'Ruby' => [<Post>, <Post>] }
## make_iterable(categories, :index => 'name', :items => 'posts')
## Will allow the user to iterate through all categories and then iterate
## though each post in the current category like so:
## {% for category in site.categories %}
## h1. {{ category.name }}
## <ul>
## {% for post in category.posts %}
## <li>{{ post.title }}</li>
## {% endfor %}
## </ul>
## {% endfor %}
##
## Returns [ {<index> => <kv_hash_key>, <items> => kv_hash[<kv_hash_key>]}, ... ]
#def make_iterable(kv_hash, options)
#options = {:index => 'name', :items => 'items'}.merge(options)
#result = []
#kv_hash.sort.each do |key, value|
#result << { options[:index] => key, options[:items] => value }
#end
#result
#end
#def site_payload
#payload = orig_site_payload
#payload['site']['iterable'].merge!({
#'categories' => make_iterable(self.categories, :index => 'name', :items => 'posts'),
#'tags' => make_iterable(self.tags, :index => 'name', :items => 'posts')
#})
#payload
#end
#end
#end
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