Differential D25007 Diff 19 src/docs/contributor/using_edges.diviner

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	@title Using Edges			@title Using Edges
	@group developer			@group developer

	Guide to the Edges infrastructure.			Guide to the Edges infrastructure.

	= Overview =			= Overview =

	Edges are a generic way of storing a relationship between two objects (like a			Edges are a generic way of storing a relationship between two objects (like a
	Task and its attached files). If you are familiar with the Facebook associations			Task and its attached files).
	framework, Phabricator Edges are substantially similar.

	An edge is defined by a source PHID (the edge origin), a destination PHID			An edge is defined by a source PHID (the edge origin), a destination PHID
	(the edge destination) and an edge type (which describes the relationship,			(the edge destination) and an edge type (which describes the relationship,
	like "is subscribed to" or "has attached file").			like "is subscribed to" or "has attached file").

	Every edge is directional, and stored alongside the source object. Some edges			Every edge is directional, and stored alongside the source object. Some edges
	are configured to automatically write an inverse edge, effectively building			are configured to automatically write an inverse edge, effectively building
	a bidirectional relationship. The strength of storing relationships like this			a bidirectional relationship. The strength of storing relationships like this
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