MONGOID-5943: Add changeset persistence layer - #6148

Draft

jamis wants to merge 48 commits into

mongodb:masterfrom

jamis:changeset-persistence-layer

Commits on May 12, 2026

Add Mongoid::Changeset::Entry value object
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5a20b46
Add Mongoid::Changeset core class with accumulation, nesting, and discard
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5b4f0db
MONGOID-6083 Add thread-local changeset storage accessors to Mongoid::Threaded
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ff92e84
Add before_flush and after_flush callbacks to Mongoid::Interceptable
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7b48ceb
Changeset module-level lifecycle method (Task 4)
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351904d
Replace NotImplementedError stub with no-op in _flush_entries
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29b0d3d
Implement Changeset#flush with batch grouping and callback dispatch
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e78579f
Fix collection equality and in_transaction? check in Changeset#flush
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07f3a16
Rewire Creatable to stage :insert entries in the changeset
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9ac409b
Fix RootInsertable override and stale comment after Creatable rewire
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16b2a5b
Add :embedded_insert entry type to disambiguate from regular :update entries
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11ac37c
Rewire Updatable to stage :update entries in the changeset
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02351d1
Fix double move_changes and restore MONGOID-4982 comment in Updatable
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952c957
Rewire Destroyable and Deletable to stage :delete entries in the changeset
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434f4bd
Add :embedded_delete entry type and deferred embedded delete spec
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9a1150e
Add staged? and staged predicates to Mongoid::Stateful
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dba567a
Rewire atomically to use Mongoid.changeset{} internally
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1bfdea2
Rewire atomic field operations to stage entries in the changeset
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59cc84c
Stage criteria-level update_all and delete_all entries in the changeset
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3d94013
Referenced association setters call save! to gate writes with validation
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52a4a0a
HABTM setter stages both sides through the changeset
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1cde79f
HABTM changeset staging: add error-path test and fix let! usage
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c658963
Changeset persistence layer: regression fixes and cleanup
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6392d45

Commits on May 14, 2026

ensure that a changeset aborted by an exception is marked terminated
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9c7a3f7
present a more convenient interface for adding entries to a changeset
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f8a68f2
rename Errors::InvalidOperation => Errors::InvalidChangesetOperation
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175f537
ensure upsert operation also goes through changeset
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22f8924
fix direct database writes to go through changeset
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25b5479
make Mongoid.changeset yield the current changeset to the block
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7392363
fix callback definitions for flush
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e57372b
allow delete to return a count, if not run in an outer changeset
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09d21e1
ensure atomic ops do not trigger commit/flush callbacks (unless included in a changeset with other operations)
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7cd9171
fix documentation
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f5642a4

Commits on May 15, 2026

Commits on May 18, 2026

Account for changed return type in `#delete`
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2cab4e9
Ensure multiple adjacent entries for the same document each trigger necessary state changes on flush
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57de214
split batches by session instance, as well
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bcbf258
Forgot to commit this file
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f406374
rubocop appeasement (rubocop 1.86.2)
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4c30323
after insert, clear cached descendants for subsequent operations
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3b5cc85
wrap all callbacks in changeset for insert and upsert operations
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27629dd

Commits on May 19, 2026