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feat(meditate): dreams on the server, sealed and synced like the sittings

Browse source 
The dream journal's table (ADR 0038, D14): `dream`, in the sync engine's
database, a row a dream, its content sealed on the device (key ID,
payload, nonce), so the instance sees only that a dream exists, its size
and when it changed. The same rules as the sittings: the sync engine's
connector refuses a call without a session, each row lives in its
person's space, and deleting the person deletes their dreams with it
(the deletion test now writes and counts a dream too, and leaves
another person's).

The migration `20261103130213716-dreams`:
- `CREATE OR REPLACE FUNCTION gen_random_uuid_v7()`: the generator
  repeats the UUID v7 function every migration; replacing it with the
  same body changes nothing.
- `CREATE TABLE "dream"`: `id` a UUID v7 by default, `spaceId` the
  person's sync space, `keyId` the key it is sealed with, `payload` the
  sealed bytes (not null), `nonce` the sealing's nonce.
- `CREATE INDEX "dream_space_idx"` on `spaceId`, so deleting a space
  finds its dreams without scanning the table.
- The foreign key from `spaceId` to `offline_sync_spaces("id")` with
  `ON DELETE CASCADE`: deleting the space deletes its dreams.
- The version rows of every module in `serverpod_migrations`.
A new, empty table: nothing existing changes and no data moves.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>
This commit is contained in:
Tizian 「ティツィアーン」 2026-11-03 14:04:57 +01:00
commit 769ae3b20a
Signed by: raisondetredev
GPG key ID: 07F6FCF405488B64
6 changed files with 18526 additions and 7 deletions
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apps/meditate/halkyon_meditate_server/migrations/20261103130213716-dreams/definition.json Normal file
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apps/meditate/halkyon_meditate_server/migrations/20261103130213716-dreams/definition.sql Normal file
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{
"__className__": "serverpod.DatabaseDefinition",
"schemaVersion": 2,
"moduleName": "halkyon_meditate",
"tables": [
{
"__className__": "serverpod.TableDefinition",
"name": "content_key",
"dartName": "ContentKey",
"module": "halkyon_meditate",
"schema": "public",
"columns": [
{
"__className__": "serverpod.ColumnDefinition",
"name": "id",
"fieldName": "id",
"columnType": 7,
"isNullable": false,
"columnDefault": "random_v7",
"dartType": "UuidValue?"
},
{
"__className__": "serverpod.ColumnDefinition",
"name": "spaceId",
"fieldName": "spaceId",
"columnType": 6,
"isNullable": true,
"dartType": "int?"
},
{
"__className__": "serverpod.ColumnDefinition",
"name": "dataKeyId",
"fieldName": "dataKeyId",
"columnType": 0,
"isNullable": false,
"dartType": "String"
},
{
"__className__": "serverpod.ColumnDefinition",
"name": "sealedKey",
"fieldName": "sealedKey",
"columnType": 5,
"isNullable": false,
"dartType": "dart:typed_data:ByteData"
}
],
"foreignKeys": [
{
"__className__": "serverpod.ForeignKeyDefinition",
"constraintName": "content_key_fk_0",
"columns": [
"spaceId"
],
"referenceTable": "offline_sync_spaces",
"referenceTableSchema": "public",
"referenceColumns": [
"id"
],
"onUpdate": 3,
"onDelete": 4
}
],
"indexes": [
{
"__className__": "serverpod.IndexDefinition",
"indexName": "content_key_space_idx",
"elements": [
{
"__className__": "serverpod.IndexElementDefinition",
"type": 0,
"definition": "spaceId"
}
],
"type": "btree",
"isUnique": false,
"isPrimary": false
}
],
"managed": true
},
{
"__className__": "serverpod.TableDefinition",
"name": "dream",
"dartName": "Dream",
"module": "halkyon_meditate",
"schema": "public",
"columns": [
{
"__className__": "serverpod.ColumnDefinition",
"name": "id",
"fieldName": "id",
"columnType": 7,
"isNullable": false,
"columnDefault": "random_v7",
"dartType": "UuidValue?"
},
{
"__className__": "serverpod.ColumnDefinition",
"name": "spaceId",
"fieldName": "spaceId",
"columnType": 6,
"isNullable": true,
"dartType": "int?"
},
{
"__className__": "serverpod.ColumnDefinition",
"name": "keyId",
"fieldName": "keyId",
"columnType": 0,
"isNullable": true,
"dartType": "String?"
},
{
"__className__": "serverpod.ColumnDefinition",
"name": "payload",
"fieldName": "payload",
"columnType": 5,
"isNullable": false,
"dartType": "dart:typed_data:ByteData"
},
{
"__className__": "serverpod.ColumnDefinition",
"name": "nonce",
"fieldName": "nonce",
"columnType": 5,
"isNullable": true,
"dartType": "dart:typed_data:ByteData?"
}
],
"foreignKeys": [
{
"__className__": "serverpod.ForeignKeyDefinition",
"constraintName": "dream_fk_0",
"columns": [
"spaceId"
],
"referenceTable": "offline_sync_spaces",
"referenceTableSchema": "public",
"referenceColumns": [
"id"
],
"onUpdate": 3,
"onDelete": 4
}
],
"indexes": [
{
"__className__": "serverpod.IndexDefinition",
"indexName": "dream_space_idx",
"elements": [
{
"__className__": "serverpod.IndexElementDefinition",
"type": 0,
"definition": "spaceId"
}
],
"type": "btree",
"isUnique": false,
"isPrimary": false
}
],
"managed": true
},
{
"__className__": "serverpod.TableDefinition",
"name": "meditate_settings",
"dartName": "MeditateSettings",
"module": "halkyon_meditate",
"schema": "public",
"columns": [
{
"__className__": "serverpod.ColumnDefinition",
"name": "id",
"fieldName": "id",
"columnType": 7,
"isNullable": false,
"columnDefault": "random_v7",
"dartType": "UuidValue?"
},
{
"__className__": "serverpod.ColumnDefinition",
"name": "spaceId",
"fieldName": "spaceId",
"columnType": 6,
"isNullable": true,
"dartType": "int?"
},
{
"__className__": "serverpod.ColumnDefinition",
"name": "keyId",
"fieldName": "keyId",
"columnType": 0,
"isNullable": true,
"dartType": "String?"
},
{
"__className__": "serverpod.ColumnDefinition",
"name": "payload",
"fieldName": "payload",
"columnType": 5,
"isNullable": false,
"dartType": "dart:typed_data:ByteData"
},
{
"__className__": "serverpod.ColumnDefinition",
"name": "nonce",
"fieldName": "nonce",
"columnType": 5,
"isNullable": true,
"dartType": "dart:typed_data:ByteData?"
}
],
"foreignKeys": [
{
"__className__": "serverpod.ForeignKeyDefinition",
"constraintName": "meditate_settings_fk_0",
"columns": [
"spaceId"
],
"referenceTable": "offline_sync_spaces",
"referenceTableSchema": "public",
"referenceColumns": [
"id"
],
"onUpdate": 3,
"onDelete": 4
}
],
"indexes": [
{
"__className__": "serverpod.IndexDefinition",
"indexName": "meditate_settings_space_idx",
"elements": [
{
"__className__": "serverpod.IndexElementDefinition",
"type": 0,
"definition": "spaceId"
}
],
"type": "btree",
"isUnique": false,
"isPrimary": false
}
],
"managed": true
},
{
"__className__": "serverpod.TableDefinition",
"name": "sitting",
"dartName": "Sitting",
"module": "halkyon_meditate",
"schema": "public",
"columns": [
{
"__className__": "serverpod.ColumnDefinition",
"name": "id",
"fieldName": "id",
"columnType": 7,
"isNullable": false,
"columnDefault": "random_v7",
"dartType": "UuidValue?"
},
{
"__className__": "serverpod.ColumnDefinition",
"name": "spaceId",
"fieldName": "spaceId",
"columnType": 6,
"isNullable": true,
"dartType": "int?"
},
{
"__className__": "serverpod.ColumnDefinition",
"name": "keyId",
"fieldName": "keyId",
"columnType": 0,
"isNullable": true,
"dartType": "String?"
},
{
"__className__": "serverpod.ColumnDefinition",
"name": "payload",
"fieldName": "payload",
"columnType": 5,
"isNullable": false,
"dartType": "dart:typed_data:ByteData"
},
{
"__className__": "serverpod.ColumnDefinition",
"name": "nonce",
"fieldName": "nonce",
"columnType": 5,
"isNullable": true,
"dartType": "dart:typed_data:ByteData?"
}
],
"foreignKeys": [
{
"__className__": "serverpod.ForeignKeyDefinition",
"constraintName": "sitting_fk_0",
"columns": [
"spaceId"
],
"referenceTable": "offline_sync_spaces",
"referenceTableSchema": "public",
"referenceColumns": [
"id"
],
"onUpdate": 3,
"onDelete": 4
}
],
"indexes": [
{
"__className__": "serverpod.IndexDefinition",
"indexName": "sitting_space_idx",
"elements": [
{
"__className__": "serverpod.IndexElementDefinition",
"type": 0,
"definition": "spaceId"
}
],
"type": "btree",
"isUnique": false,
"isPrimary": false
}
],
"managed": true
}
],
"installedModules": [
{
"__className__": "serverpod.DatabaseMigrationVersion",
"module": "halkyon_base",
"version": "20261026140329453-assistant-budgets"
},
{
"__className__": "serverpod.DatabaseMigrationVersion",
"module": "serverpod",
"version": "20260824182259319"
},
{
"__className__": "serverpod.DatabaseMigrationVersion",
"module": "serverpod_auth_idp",
"version": "20260924105404509"
},
{
"__className__": "serverpod.DatabaseMigrationVersion",
"module": "serverpod_offline_sync",
"version": "20260914143806119"
},
{
"__className__": "serverpod.DatabaseMigrationVersion",
"module": "halkyon_oidc",
"version": "20261023180644988"
},
{
"__className__": "serverpod.DatabaseMigrationVersion",
"module": "serverpod_auth_core",
"version": "20260924105232991"
}
],
"migrationApiVersion": 1
}

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{
"__className__": "serverpod.DatabaseMigration",
"actions": [
{
"__className__": "serverpod.DatabaseMigrationAction",
"type": "createTable",
"createTable": {
"__className__": "serverpod.TableDefinition",
"name": "dream",
"dartName": "Dream",
"module": "halkyon_meditate",
"schema": "public",
"columns": [
{
"__className__": "serverpod.ColumnDefinition",
"name": "id",
"fieldName": "id",
"columnType": 7,
"isNullable": false,
"columnDefault": "random_v7",
"dartType": "UuidValue?"
},
{
"__className__": "serverpod.ColumnDefinition",
"name": "spaceId",
"fieldName": "spaceId",
"columnType": 6,
"isNullable": true,
"dartType": "int?"
},
{
"__className__": "serverpod.ColumnDefinition",
"name": "keyId",
"fieldName": "keyId",
"columnType": 0,
"isNullable": true,
"dartType": "String?"
},
{
"__className__": "serverpod.ColumnDefinition",
"name": "payload",
"fieldName": "payload",
"columnType": 5,
"isNullable": false,
"dartType": "dart:typed_data:ByteData"
},
{
"__className__": "serverpod.ColumnDefinition",
"name": "nonce",
"fieldName": "nonce",
"columnType": 5,
"isNullable": true,
"dartType": "dart:typed_data:ByteData?"
}
],
"foreignKeys": [
{
"__className__": "serverpod.ForeignKeyDefinition",
"constraintName": "dream_fk_0",
"columns": [
"spaceId"
],
"referenceTable": "offline_sync_spaces",
"referenceTableSchema": "public",
"referenceColumns": [
"id"
],
"onUpdate": 3,
"onDelete": 4
}
],
"indexes": [
{
"__className__": "serverpod.IndexDefinition",
"indexName": "dream_space_idx",
"elements": [
{
"__className__": "serverpod.IndexElementDefinition",
"type": 0,
"definition": "spaceId"
}
],
"type": "btree",
"isUnique": false,
"isPrimary": false
}
],
"managed": true
}
}
],
"warnings": [],
"migrationApiVersion": 1
}

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BEGIN;
--
-- Function: gen_random_uuid_v7()
-- Source: https://gist.github.com/kjmph/5bd772b2c2df145aa645b837da7eca74
-- License: MIT (copyright notice included on the generator source code).
--
create or replace function gen_random_uuid_v7()
returns uuid
as $$
begin
-- use random v4 uuid as starting point (which has the same variant we need)
-- then overlay timestamp
-- then set version 7 by flipping the 2 and 1 bit in the version 4 string
return encode(
set_bit(
set_bit(
overlay(uuid_send(gen_random_uuid())
placing substring(int8send(floor(extract(epoch from clock_timestamp()) * 1000)::bigint) from 3)
from 1 for 6
),
52, 1
),
53, 1
),
'hex')::uuid;
end
$$
language plpgsql
volatile;
--
-- ACTION CREATE TABLE
--
CREATE TABLE "dream" (
"id" uuid PRIMARY KEY DEFAULT gen_random_uuid_v7(),
"spaceId" bigint,
"keyId" text,
"payload" bytea NOT NULL,
"nonce" bytea
);
-- Indexes
CREATE INDEX "dream_space_idx" ON "dream" USING btree ("spaceId");
--
-- ACTION CREATE FOREIGN KEY
--
ALTER TABLE ONLY "dream"
ADD CONSTRAINT "dream_fk_0"
FOREIGN KEY("spaceId")
REFERENCES "offline_sync_spaces"("id")
ON DELETE CASCADE
ON UPDATE NO ACTION;
--
-- MIGRATION VERSION FOR halkyon_meditate
--
INSERT INTO "serverpod_migrations" ("module", "version", "timestamp")
VALUES ('halkyon_meditate', '20261103130213716-dreams', now())
ON CONFLICT ("module")
DO UPDATE SET "version" = '20261103130213716-dreams', "timestamp" = now();
--
-- MIGRATION VERSION FOR halkyon_base
--
INSERT INTO "serverpod_migrations" ("module", "version", "timestamp")
VALUES ('halkyon_base', '20261026140329453-assistant-budgets', now())
ON CONFLICT ("module")
DO UPDATE SET "version" = '20261026140329453-assistant-budgets', "timestamp" = now();
--
-- MIGRATION VERSION FOR serverpod
--
INSERT INTO "serverpod_migrations" ("module", "version", "timestamp")
VALUES ('serverpod', '20260824182259319', now())
ON CONFLICT ("module")
DO UPDATE SET "version" = '20260824182259319', "timestamp" = now();
--
-- MIGRATION VERSION FOR serverpod_auth_idp
--
INSERT INTO "serverpod_migrations" ("module", "version", "timestamp")
VALUES ('serverpod_auth_idp', '20260924105404509', now())
ON CONFLICT ("module")
DO UPDATE SET "version" = '20260924105404509', "timestamp" = now();
--
-- MIGRATION VERSION FOR serverpod_offline_sync
--
INSERT INTO "serverpod_migrations" ("module", "version", "timestamp")
VALUES ('serverpod_offline_sync', '20260914143806119', now())
ON CONFLICT ("module")
DO UPDATE SET "version" = '20260914143806119', "timestamp" = now();
--
-- MIGRATION VERSION FOR halkyon_oidc
--
INSERT INTO "serverpod_migrations" ("module", "version", "timestamp")
VALUES ('halkyon_oidc', '20261023180644988', now())
ON CONFLICT ("module")
DO UPDATE SET "version" = '20261023180644988', "timestamp" = now();
--
-- MIGRATION VERSION FOR serverpod_auth_core
--
INSERT INTO "serverpod_migrations" ("module", "version", "timestamp")
VALUES ('serverpod_auth_core', '20260924105232991', now())
ON CONFLICT ("module")
DO UPDATE SET "version" = '20260924105232991', "timestamp" = now();
COMMIT;

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apps/meditate/halkyon_meditate_server/migrations/migration_registry.txt
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@ -6,3 +6,4 @@
20261103074807107-initial
20261103074902604-sittings
20261103130213716-dreams