Clojurians Log v2

I find myself called (ds/entity ...) a lot... is there a way to return an entity or a set of entities from a query directly?

@samcferrell you can use pull in the find specification of a query, for example:

[:find (pull ?e [:artist/startYear :artist/endYear])
 :where [?e :artist/name "The Beatles"]]

[:find (pull ?e [*])
 :where [?e :artist/name "The Beatles"]]

Couple differences tho. entity is lazy, and can be used with functions like get-in to “walk” edges. pull is eager, and * won’t actually bring in the “edge entities” on its own.

@cjsauer thanks for explain in detail! I did not realize that I can use this [:user/id 1] format as a value! It's this a new feature in recent updates?

@doglooksgood no it isn’t new. Lookup refs are a primary feature, likely inspired by datomic.

You’ll find that quite a bit of the Datomic documentation also applies to DataScript.

@cjsauer thanks!