metamaps--metamaps/app/models/synapse.rb
Devin Howard d11278b63b map rdf export (fixes #1015) (#1036)
* simple rdf export of maps

* register ttl mime type

* owl

* mm

* fix up export service

* implement base url thing whoo

* add more rdf fields

* fix rdf syntax errors

* hide unused fields in rdf

* some code climate fixes

* update ontology a bit more

* syntax fix

* typo
2017-01-22 16:42:04 -05:00

79 lines
2.3 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 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
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