metamaps--metamaps/app/models/synapse.rb
Connor Turland 3868910dde Stream map related events from rails server via actioncable instead of nodejs (#1010)
* actioncable needs puma not webrick

* add framework

* remove the old way

* send events from server to client

* get all events working

* clean up receivable

* map is polymorphic on message

* add the moved event

* make todo comments clear

* verify before streaming from map channel

* rubocop fixes

* wasn't set up correctly for nodejs realtime
2017-01-03 16:12:58 -05:00

67 lines
1.9 KiB
Ruby

# frozen_string_literal: true
class Synapse < ApplicationRecord
belongs_to :user
belongs_to :defer_to_map, class_name: 'Map', foreign_key: 'defer_to_map_id'
belongs_to :topic1, class_name: 'Topic', foreign_key: 'topic1_id'
belongs_to :topic2, class_name: 'Topic', foreign_key: 'topic2_id'
has_many :mappings, as: :mappable, dependent: :destroy
has_many :maps, through: :mappings
validates :desc, length: { minimum: 0, allow_nil: false }
validates :permission, presence: true
validates :topic1_id, presence: true
validates :topic2_id, presence: true
validates :permission, inclusion: { in: Perm::ISSIONS.map(&:to_s) }
validates :category, inclusion: { in: ['from-to', 'both'], allow_nil: true }
scope :for_topic, ->(topic_id = nil) {
where(topic1_id: topic_id).or(where(topic2_id: topic_id))
}
after_update :after_updated
delegate :name, to: :user, prefix: true
def user_image
user.image.url
end
def collaborator_ids
if defer_to_map
defer_to_map.editors.select { |mapper| mapper != user }.map(&:id)
else
[]
end
end
def filtered
{
id: id,
permission: permission,
user_id: user_id,
collaborator_ids: collaborator_ids
}
end
def as_json(_options = {})
super(methods: [:user_name, :user_image, :collaborator_ids])
end
def after_updated
attrs = ['desc', 'category', 'permission', 'defer_to_map_id']
if attrs.any? {|k| changed_attributes.key?(k)}
new = self.attributes.select {|k| attrs.include?(k) }
old = changed_attributes.select {|k| attrs.include?(k) }
meta = new.merge(old) # we are prioritizing the old values, keeping them
meta['changed'] = changed_attributes.keys.select {|k| attrs.include?(k) }
Events::SynapseUpdated.publish!(self, user, meta)
maps.each {|map|
ActionCable.server.broadcast 'map_' + map.id.to_s, type: 'synapseUpdated', id: id
}
end
end
end