Exceptions indicated.
trident.datascript
Frontend tools for syncing Datascript with Datomic.
Frontend tools for syncing Datascript with Datomic.
defqclj/smacro
(defq sym & forms)Defines a reactive atom backed by a Datascript query.
sym, the reactive atom, will contain the result of forms. sym will be
updated whenever transact! or init-from-datomic! are called.
Although it's intended that forms contains a Datascript query, you can put
anything in there.
Defines a reactive atom backed by a Datascript query. `sym`, the reactive atom, will contain the result of `forms`. `sym` will be updated whenever [[transact!]] or [[init-from-datomic!]] are called. Although it's intended that `forms` contains a Datascript query, you can put anything in there.
eid-mappingcljs
(eid-mapping datascript-tx-result datomic-ids)Returns a map from Datascript EIDs to Datomic EIDs.
datomic-tempids is a function from tempids in datascript-tx-result to
Datomic EIDs.
Returns a map from Datascript EIDs to Datomic EIDs. `datomic-tempids` is a function from tempids in `datascript-tx-result` to Datomic EIDs.
init-from-datomic!cljs
(init-from-datomic! conn datoms)Loads Datomic datoms into a Datascript conn.
Stores Datomic EIDs for use by transact!. The Datomic EIDs must be sent
from the backend as tagged literals; see transact!.
Loads Datomic datoms into a Datascript `conn`. Stores Datomic EIDs for use by [[transact!]]. The Datomic EIDs must be sent from the backend as tagged literals; see [[transact!]].
transact!cljs
(transact! persist-fn conn tx & queries)Transacts tx to conn, keeping EIDs in sync with Datomic.
persist-fn is a function which takes tx, persists to Datomic, and returns
a channel which will deliver the value of :tempids from the Datomic
transaction result.
Before passing tx to persist-fn, Datascript EIDs will be changed to
Datomic EIDs (stored from previous transactions). Datomic IDs are represented
as tagged literals, e.g. #trident/eid "12345". The backend should encode
(and decode) EIDs in this form because Datomic entity IDs can be larger than
Javascript's Number.MAX_SAFE_INTEGER.
On the backend, include {trident/eid trident.util/parse-int} in
data_readers.clj. On the frontend, include the following when you call
read-string: {:readers {'trident/eid #(tagged-literal 'trident/eid %)}}
Note: currently, if tx includes new entities, they must have an explicit
tempid, e.g. {:db/id "tmp", :foo "bar"} instead of just
{:foo "bar"}.
Transacts `tx` to `conn`, keeping EIDs in sync with Datomic.
`persist-fn` is a function which takes `tx`, persists to Datomic, and returns
a channel which will deliver the value of `:tempids` from the Datomic
transaction result.
Before passing `tx` to `persist-fn`, Datascript EIDs will be changed to
Datomic EIDs (stored from previous transactions). Datomic IDs are represented
as tagged literals, e.g. `#trident/eid "12345"`. The backend should encode
(and decode) EIDs in this form because Datomic entity IDs can be larger than
Javascript's `Number.MAX_SAFE_INTEGER`.
On the backend, include `{trident/eid trident.util/parse-int}` in
`data_readers.clj`. On the frontend, include the following when you call
`read-string`: `{:readers {'trident/eid #(tagged-literal 'trident/eid %)}}`
Note: currently, if `tx` includes new entities, they must have an explicit
tempid, e.g. `{:db/id "tmp", :foo "bar"}` instead of just
`{:foo "bar"}`.cljdoc is a website building & hosting documentation for Clojure/Script libraries
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