metamaps--metamaps/app/models/synapse.rb
2018-01-21 14:21:00 -08:00

104 lines
3 KiB
Ruby

# frozen_string_literal: true
class Synapse < ApplicationRecord
ATTRS_TO_WATCH = %w[desc category permission defer_to_map_id].freeze
belongs_to :user
belongs_to :defer_to_map, class_name: 'Map', foreign_key: 'defer_to_map_id'
belongs_to :updated_by, class_name: 'User'
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, (lambda do |topic_id = nil|
where(topic1_id: topic_id).or(where(topic2_id: topic_id))
end)
before_create :set_perm_by_defer
after_create :after_created_async
after_update :after_updated
before_destroy :before_destroyed
delegate :name, to: :user, prefix: true
def user_image
user.image.url
end
def collaborator_ids
if defer_to_map
defer_to_map.editors.reject { |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: %i[user_name user_image collaborator_ids])
end
def as_rdf
output = ''
output += %(d:synapse_#{id} a mm:Synapse ;\n)
output += %( mm:topic1 d:topic_#{topic1_id} ;\n)
output += %( mm:topic2 d:topic_#{topic2_id} ;\n)
output += %( mm:direction "#{category}" ;\n)
output += %( rdfs:comment "#{desc}" ;\n) if desc.present?
output[-2] = '.'
output += %(\n)
output
end
protected
def set_perm_by_defer
defer_to_map&.permission
end
def after_created_async
follow_ids = NotificationService.notify_followers(topic1, TOPIC_CONNECTED_1, self)
NotificationService.notify_followers(topic2, TOPIC_CONNECTED_2, self, nil, follow_ids)
end
handle_asynchronously :after_created_async
def after_updated
return unless ATTRS_TO_WATCH.any? { |k| changed_attributes.key?(k) }
new = attributes.select { |k| ATTRS_TO_WATCH.include?(k) }
old = changed_attributes.select { |k| ATTRS_TO_WATCH.include?(k) }
meta = new.merge(old) # we are prioritizing the old values, keeping them
meta['changed'] = changed_attributes.keys.select { |k| ATTRS_TO_WATCH.include?(k) }
Events::SynapseUpdated.publish!(self, updated_by, meta)
maps.each do |map|
ActionCable.server.broadcast 'map_' + map.id.to_s, type: 'synapseUpdated', id: id
end
end
def before_destroyed
# hard to know how to do this yet, because the synapse actually gets destroyed
# NotificationService.notify_followers(topic1, 'topic_disconnected', self)
# NotificationService.notify_followers(topic2, 'topic_disconnected', self)
end
end