Issues

• An upsert on a has_many :through or HABTM updates its element but never links it

  moduloTech/model_mapper#24 · Filter by author Ezveus opened on Oct 20, 2026

• A UTF-16 or UTF-32 string raises Encoding::CompatibilityError out of the mapper

  moduloTech/model_mapper#23 · Filter by author Ezveus opened on Oct 20, 2026

• (suspected) a multiple true legacy type :referential on an integer _id column maps as valid and leaves the column nil

  moduloTech/model_mapper#22 · Filter by author Ezveus opened on Oct 20, 2026

• default_on_invalid on a legacy type :referential stores the id but not the record

  moduloTech/model_mapper#21 · Filter by author Ezveus opened on Oct 20, 2026

• immediate_write? predicts ActiveRecord's replace by re-implementing its internals

  moduloTech/model_mapper#20 · Filter by author Ezveus opened on Oct 20, 2026

• Assigning a has_one/has_many reference writes to the database during map

  moduloTech/model_mapper#13 · Filter by author Ezveus opened on Oct 15, 2026

• Allow an optional attribute to be cleared by an explicit null

  moduloTech/model_mapper#6 · Filter by author bdavidxyz opened on Oct 1, 2026