Template:Edge

This template, for use on edge kind pages, takes in a short description of this edge, and a list of the kinds of connections this edge can form (the predecessor node kind, successor node kind, and multiplicities at each end), and stores that information in properties so it can be retrieved by knowing either the edge kind, the predecessor kind, or the successor kind, using a single query.

It also produces a table summarizing this information.

For example, this is the template call that would be used on a page "Edge" to indicate that "Edge" is an edge kind, that connects either a "Foo" node kind to a "Bar" node kind, or to a "Baz" node kind, with each "Bar" node being associated with exactly one "Foo" node, and each "Baz" node optionally being associated with exactly one "Foo" node:

{{Edge | description = Connects a Foo to a Bar or a Baz | connects = Foo,Bar,1,*;Foo,Baz,0..1,* }}

The visible output of this will be a metaclass table describing the edge, plus a table summarizing the connections:

Metaclass	Edge
Description	Connects a Foo to a Bar or a Baz

Predecessor	Multiplicity	Successor
Foo	1 ➞ ✱	Bar
Foo	0..1 ➞ ✱	Baz

In addition, the following properties will be created:

Metaclass	Edge
Description	{{{description}}}

Predecessor	Multiplicity	Successor
Node Kind	1 ➞ ✱	Node Kind
Node Kind	✱ ➞ 1	Node Kind