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Contents
module SocialStream
# Methods for d3.js library
# http://mbostock.github.com/d3/
module D3
class Force
def initialize(ties, view)
@view = view
@force =
ties.inject({ :nodes => [], :links => [] }) { |result, t|
add_node(result[:nodes], t.sender)
add_node(result[:nodes], t.receiver)
add_link(result[:links], t, result[:nodes])
result
}
end
def to_json
@force.to_json
end
private
def node(actor)
{
:name => actor.name,
:logo => @view.image_path(actor.logo.url(:representation)),
:group => SocialStream.subjects.index(actor.subject_type.underscore.to_sym) + 1
}
end
def add_node(nodes, actor)
return if nodes_actor_index(nodes, actor)
nodes << node(actor)
end
def add_link(links, tie, nodes)
links << {
:source => nodes_actor_index(nodes, tie.sender),
:target => nodes_actor_index(nodes, tie.receiver),
:value => 1
}
end
def nodes_actor_index(nodes, actor)
nodes.index(nodes.find{ |n| n[:name] == actor.name })
end
end
end
end
Version data entries
240 entries across 240 versions & 4 rubygems