method

check_constraint_exists?

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What's this?

check_constraint_exists?(*args, **options) public

Checks if a check_constraint exists on a table.

unless t.check_constraint_exists?(name: "price_check")
  t.check_constraint("price > 0", name: "price_check")
end

See {connection.check_constraint_exists?}[rdoc-ref:SchemaStatements#check_constraint_exists?]

Show source

# File activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb, line 940
      def check_constraint_exists?(*args, **options)
        @base.check_constraint_exists?(name, *args, **options)
      end

check_constraint_exists?

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