method
foreign_key_exists?
v5.2.3 -
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Class: ActiveRecord::ConnectionAdapters::Table
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- What's this?
foreign_key_exists?(*args)
public
Checks to see if a foreign key exists.
t.foreign_key(:authors) unless t.foreign_key_exists?(:authors)
See {connection.foreign_key_exists?}[rdoc-ref:SchemaStatements#foreign_key_exists?]