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Merge pull request #35531 from boblail/issue-35519

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Update documentation on upsert_all so that it is correct for Postgres

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Ryuta Kamizono 2019-03-09 20:50:53 +09:00 committed by GitHub
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activerecord/lib/active_record/persistence.rb
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@ -243,11 +243,15 @@ module ActiveRecord
# #
# ==== Examples # ==== Examples
# #
# # Insert multiple records, performing an upsert when records have duplicate ISBNs # # Given a Unique Index on books.isbn and the following record:
# Book.create!(title: 'Rework', author: 'David', isbn: '1')
#
# # Insert multiple records, allowing new records with the same ISBN
# # as an existing record to overwrite the existing record.
# # ('Eloquent Ruby' will overwrite 'Rework' because its ISBN is duplicate) # # ('Eloquent Ruby' will overwrite 'Rework' because its ISBN is duplicate)
# Book.upsert_all([ # Book.upsert_all([
# { title: 'Rework', author: 'David', isbn: '1' }, # { title: 'Eloquent Ruby', author: 'Russ', isbn: '1' },
# { title: 'Eloquent Ruby', author: 'Russ', isbn: '1' } # { title: 'Clean Code', author: 'Robert', isbn: '2' }
# ], # ],
# unique_by: { columns: %w[ isbn ] }) # unique_by: { columns: %w[ isbn ] })
# #