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Add support for nullifying CPK has_one associations
Composite primary key records need to conditionally unset multiple column attributes from the associated record in order to properly support dependent: nullify.
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Original file line number | Diff line number | Diff line change |
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# frozen_string_literal: true | ||
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module Cpk | ||
class Chapter < ActiveRecord::Base | ||
self.table_name = :cpk_chapters | ||
# explicit definition is to allow schema definition to be simplified | ||
# to be shared between different databases | ||
self.primary_key = [:author_id, :number] | ||
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belongs_to :book, query_constraints: [:author_id, :book_number] | ||
end | ||
end |
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