cesnimda
6c50e406b5
Move Gmail, Microsoft Graph, and IMAP connection creation into an additive provider-aware migration. Preserve encrypted credentials and retain scoped historical repairs.
62 lines
3.6 KiB
Markdown
62 lines
3.6 KiB
Markdown
# JT-019 schema ownership — incremental migration transfers
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## Scope
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This work establishes a behaviour-preserving ownership boundary and moves small independent or
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cohesive table groups. It does not attempt to delete the legacy reconciler wholesale.
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## Implemented
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- Added `StartupSchemaOwnership`, classifying all 49 EF model tables into disjoint migration-owned
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and reconciler-owned creation sets.
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- Added a regression that fails when a model table is unclassified, multiply classified, or when a
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compatibility bootstrap is incorrectly treated as migration ownership.
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- Added `20260830120000_AdoptSystemEmailSettingsSchema`, with provider-aware additive DDL for SQLite
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and MariaDB/MySQL.
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- Removed the MariaDB startup `CREATE TABLE` block for `SystemEmailSettings` and moved the table to
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the migration-owned set.
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- Added `20260830121000_AdoptUserRuleSettingsSchema` and removed both provider startup-create paths
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for the independent per-user rule-settings table.
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- Added `20260830122000_AdoptGmailReviewDecisionsSchema`, removed the SQLite startup-create path,
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and supplied the previously absent MariaDB table definition.
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- Added `20260830123000_AdoptAuthenticationSupportSchema` for recovery codes, trusted devices, and
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revocable user sessions; both provider startup-create paths are removed while guarded MariaDB
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repair checks remain for historical schemas.
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- Added `20260830124000_AdoptEmailConnectionSchema` for Gmail, Microsoft Graph, and IMAP connection
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records. Encrypted credentials and sync state are retained; scoped Gmail column repair and guarded
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MariaDB index/identity repair remain for historical installations.
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- Corrected the ownership runbook: new tables now default to migrations; the reconciler is legacy
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compatibility code to retire one dependency group at a time.
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## Data compatibility
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The migration uses `CREATE TABLE IF NOT EXISTS`. Existing MariaDB installations keep their table and
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rows; SQLite installations that never received the reconciler-only table now receive it. `Down` is
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intentionally non-destructive because it cannot determine whether the existing table predates this
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migration.
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## Proof
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- Ownership and migration-chain focused suite: 6/6 passed.
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- Blank SQLite chain applies all migrations twice and creates all ten expected
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`SystemEmailSettings` columns.
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- A database stopped immediately before the adoption migration, seeded with a representative SMTP
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settings row, upgrades without changing that row.
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- A representative per-user rules row survives adoption, downgrade, and re-upgrade.
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- A representative Gmail review decision survives adoption, downgrade, and re-upgrade.
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- Representative recovery-code, trusted-device, and user-session rows survive adoption, downgrade,
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and re-upgrade, and their indexes are present afterwards.
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- Representative encrypted credentials for all three email providers survive adoption, downgrade,
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and re-upgrade, and all five expected provider indexes are present afterwards.
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- Generated MariaDB SQL contains the provider-correct `SystemEmailSettings` DDL.
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- Full backend: 726/726 passed after the email-provider connection transfer.
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- Fresh application startup over a new disposable SQLite database applied
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`20260830120000_AdoptSystemEmailSettingsSchema` and reached the healthy listening state.
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## Remaining JT-019 work
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Twenty-six model tables remain startup-created, including the Identity group and several tables
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with parent dependencies. Transfer them in small dependency-aware migrations with blank, populated,
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retry and MariaDB runtime proof. Column/index repairs must remain until historical upgrade fixtures
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prove each one redundant.
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