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Change datomic schema by adding a fulltext index to :url/path attribute
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; 1. rename attribute: :url/path → :legacy/url-path-v1 | |
(do (require '[datomic.api :as datomic] '[kanasubs.db :as db]) | |
(datomic/transact @db/connection | |
[{:db/id :url/path, :db/ident :legacy/url-path-v1}])) | |
; 2. repurpose :url/path | |
(do (in-ns 'kanasubs.db) | |
(transact @connection | |
[{:db/id #db/id[:db.part/db] | |
:db/ident :url/path | |
:db/valueType :db.type/string | |
:db/cardinality :db.cardinality/one | |
:db/fulltext true | |
:db.install/_attribute :db.part/db}])) | |
; 3. move data from :legacy/url-path-v1 to :url/path | |
(do (require '[datomic.api :as datomic] '[kanasubs.db :as db]) | |
(def values (datomic/q | |
'[:find ?e ?v | |
:where [?e :legacy/url-path-v1 ?v]] | |
(datomic/db @db/connection))) | |
(def transact-vec (mapv (fn [[e v]] | |
(hash-map :db/id e :url/path v)) | |
values)) | |
(datomic/transact @db/connection transact-vec)) | |
; 4. excise :legacy/url-path-v1 | |
(do (require '[datomic.api :as datomic] '[kanasubs.db :as db]) | |
(datomic/transact @db/connection | |
[{:db/id #db/id[db.part/user], :db/excise :legacy/url-path-v1}])) |
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