Tag

Description

A keyword or term assigned to a party

Label

:Tag

Properties

Property	Description	Type
id	The tag's unique identifier (uuid)	string
name	the printable name of the Tag; see table below	string
createdBy	the person or process that created the node	string
createdDate		dateTime
modifiedBy	the person or process who last modified the node	string
modifiedDate		dateTime

Below is a not exhaustive list of tag list hierarchy:

Tag list name	Level 2	Level 3	Level 4
Event Series	Attributes	Dry (no alcohol) event
		LGBTQIA+ friendly
		Family friendly
Speakers	Categories & Topics	Belonging & Inclusion	Accessibility & Disability
			Black Voices
			Civil Rights
		Business	Big Data & Analytics
			Disruptive Innovation
		Culture	Art & Fashion
			Culinary
		Entertainment	Celebrity
			Digital Content
		Health	Addiction & Recovery
			Fitness & Nutrition
	Types	AAPI
		Action
		Activists & Advocates
		Actors & Actresses

While four levels of hierarchy are shown above, the database developer can add as many levels as needed.

Key

id

Relationships

:SUBCATEGORY_OF, :HAS_TAG

The :SUBCATEGORY_OF relationship connects a child Tag to a parent Tag in a hierarchy. The example code below shows how the database developer can navigate the hierarchy.

The :HAS_TAG relationship connects a :Party to a specific :Tag. This is usuaally assigned to a tag at the bottom rung of a hierarchy.

Examples

Get a list of all tag lists (top level)

MATCH      (t:Tag)
WHERE NOT  ( (t)-[:SUBCATEGORY_OF]->(:Tag) )
RETURN     t.name AS TagList

Get a tabular view of the tree for the Speakers tag list

MATCH   path = (topLevelTag:Tag {name: 'Speakers'})<-[:SUBCATEGORY_OF*0..10]-(descendant:Tag)
RETURN  [n IN nodes(path) | n.name] AS pathNodes

Get a visualization of all tag lists and tags

MATCH (root:Tag {name: "Speakers"})
CALL apoc.path.spanningTree(root, {
  relationshipFilter: "<SUBCATEGORY_OF",
  labelFilter: "+Tag",
  maxLevel: 10
}) YIELD path
RETURN path

Get all parties with a specific tag in a tag list