MONGOID-5057 Add support for `has_many :through`#6151

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jamis wants to merge 21 commits into

mongodb:masterfrom

jamis:5057-has_many-through

Commits on May 4, 2026

MONGOID-5057 Add ReadonlyAssociation error class
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MONGOID-5057 Add YARD docs to ReadonlyAssociation#initialize
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MONGOID-5057 Add THROUGH_MACRO_MAPPING and :through routing in define_association!
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MONGOID-5057 Fix ASSOCIATION_OPTIONS and add validation_default in through stubs
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MONGOID-5057 Implement HasOneThrough metadata, proxy, and eager loader
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MONGOID-5057 Add stores_foreign_key? and clarify criteria/group_by_key in HasOneThrough
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MONGOID-5057 Add has_one :through integration tests and embedded guard spec
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MONGOID-5057 Strengthen has_one :through integration tests (source option, reload)
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MONGOID-5057 Implement HasManyThrough metadata, proxy, and eager loader
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MONGOID-5057 Clarify criteria vs resolve on HasManyThrough
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MONGOID-5057 Add has_many :through integration tests
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MONGOID-5057 Fall back to preload in eager_load for :through associations
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MONGOID-5057 Clarify eager_load fallback warning when mixed inclusions are present
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MONGOID-5057 Add eager loading integration tests for :through associations
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MONGOID-5057 Add :source option integration test
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MONGOID-5057 Fix HasManyThrough#criteria to accept base and return scoped criteria
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Commits on May 28, 2026

Merge branch 'master' into 5057-has_many-through
jamis
committed