Module: Lexster::Node::InstanceMethods

Defined in:
lib/lexster/node.rb

Instance Method Summary collapse

Instance Method Details

#_neo_save ⇒ Object 



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# File 'lib/lexster/node.rb', line 88

def _neo_save
  return unless Lexster.enabled?

  data = self.to_neo.merge(ar_type: self.class.name, ar_id: self.id, Lexster::UNIQUE_ID_KEY => self.neo_unique_id)
  data.reject! { |k, v| v.nil? }

  gremlin_query = <<-GREMLIN
    idx = g.idx('node_auto_index');
    q = null;
    if (idx) q = idx.get(unique_id_key, unique_id);

    node = null;
    if (q && q.hasNext()) {
      node = q.next();
      node_data.each {
        if (node.getProperty(it.key) != it.value) {
          node.setProperty(it.key, it.value);
        }
      }
    } else {
      node = g.addVertex(node_data);
      if (enable_subrefs) g.addEdge(g.v(subref_id), node, neo_subref_node_rel_type);

      if (enable_model_index) g.idx(neo_model_index_name).put('ar_id', node.ar_id, node);
    }

    node
  GREMLIN

   script_vars = {
    unique_id_key: Lexster::UNIQUE_ID_KEY,
    node_data: data,
    unique_id: self.neo_unique_id,
    enable_subrefs: Lexster.config.enable_subrefs,
    enable_model_index: Lexster.config.enable_per_model_indexes && self.class.lexster_config.enable_model_index
  }

  if Lexster.config.enable_subrefs
    script_vars.update(
      subref_id: self.class.neo_subref_node.neo_id,
      neo_subref_node_rel_type: self.class.neo_subref_node_rel_type
    )
  end

  if Lexster.config.enable_per_model_indexes && self.class.lexster_config.enable_model_index
    script_vars.update(
      neo_model_index_name: self.class.neo_model_index_name
    )
  end

  Lexster::logger.info "Node#neo_save #{self.class.name} #{self.id}"

  node = Lexster.execute_script_or_add_to_batch(gremlin_query, script_vars) do |value|
    @_neo_representation = Lexster::Node.from_hash(value)
  end.then do |result|
    neo_search_index
  end

  node
end

#neo_after_relationship_remove(relationship) ⇒ Object 



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# File 'lib/lexster/node.rb', line 186

def neo_after_relationship_remove(relationship)
  relationship.neo_destroy
end

#neo_after_relationship_through_remove(record) ⇒ Object 



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# File 'lib/lexster/node.rb', line 197

def neo_after_relationship_through_remove(record)
  @__neo_temp_rels.each { |record, relationship| relationship.neo_destroy }
  @__neo_temp_rels.delete(record)
end

#neo_before_relationship_through_remove(record) ⇒ Object 



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# File 'lib/lexster/node.rb', line 190

def neo_before_relationship_through_remove(record)
  rel_model, foreign_key_of_owner, foreign_key_of_record = Lexster::Relationship.meta_data[self.class.name.to_s][record.class.name.to_s]
  rel_model = rel_model.to_s.constantize
  @__neo_temp_rels ||= {}
  @__neo_temp_rels[record] = rel_model.where(foreign_key_of_owner => self.id, foreign_key_of_record => record.id).first
end

#neo_find_by_id ⇒ Object 



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# File 'lib/lexster/node.rb', line 82

def neo_find_by_id
  # Lexster::logger.info "Node#neo_find_by_id #{self.class.neo_index_name} #{self.id}"
  node = Lexster.db.get_node_auto_index(Lexster::UNIQUE_ID_KEY, self.neo_unique_id)
  node.present? ? Lexster::Node.from_hash(node[0]) : nil
end

#neo_helper_get_field_value(field, options = {}) ⇒ Object 



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# File 'lib/lexster/node.rb', line 170

def neo_helper_get_field_value(field, options = {})
  if options[:block]
    options[:block].call
  else
    self.send(field) rescue (raise "No field #{field} for #{self.class.name}")
  end
end

#neo_load(hash) ⇒ Object 



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# File 'lib/lexster/node.rb', line 178

def neo_load(hash)
  Lexster::Node.from_hash(hash)
end

#neo_node ⇒ Object 



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# File 'lib/lexster/node.rb', line 182

def neo_node
  _neo_representation
end

#neo_search_index ⇒ Object 



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# File 'lib/lexster/node.rb', line 149

def neo_search_index
  return if self.class.lexster_config.search_options.blank? || (
    self.class.lexster_config.search_options.index_fields.blank? &&
    self.class.lexster_config.search_options.fulltext_fields.blank?
  )

  Lexster.ensure_default_fulltext_search_index

  Lexster.db.add_node_to_index(DEFAULT_FULLTEXT_SEARCH_INDEX_NAME, 'ar_type', self.class.name, neo_node.neo_id)

  self.class.lexster_config.search_options.fulltext_fields.each do |field, options|
    Lexster.db.add_node_to_index(DEFAULT_FULLTEXT_SEARCH_INDEX_NAME, "#{field}_fulltext", neo_helper_get_field_value(field, options), neo_node.neo_id)
  end

  self.class.lexster_config.search_options.index_fields.each do |field, options|
    Lexster.db.add_node_to_index(DEFAULT_FULLTEXT_SEARCH_INDEX_NAME, field, neo_helper_get_field_value(field, options), neo_node.neo_id)
  end

  neo_node
end