metamaps--metamaps/app/models/mapping.rb

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class Mapping < ActiveRecord::Base
belongs_to :topic, :class_name => "Topic", :foreign_key => "topic_id"
belongs_to :synapse, :class_name => "Synapse", :foreign_key => "synapse_id"
belongs_to :map, :class_name => "Map", :foreign_key => "map_id"
belongs_to :user
# sends push updates through redis to websockets for realtime updates
def message action, origin_user_id
if self.category == "Topic"
return if self.topic.permission == "private" and action == "create"
msg = { origin: origin_user_id,
mapid: self.map.id,
resource: self.category,
action: action,
id: self.topic.id,
obj: self.topic.selfonmap_as_json(self.map.id).html_safe }
elsif self.category == "Synapse"
return if self.synapse.permission == "private" and action == "create"
msg = { origin: origin_user_id,
mapid: self.map.id,
resource: self.category,
action: action,
id: self.synapse.id,
obj: self.synapse.self_as_json.html_safe }
end
$redis.publish 'maps', msg.to_json
end
end