57 lines
2 KiB
Ruby
57 lines
2 KiB
Ruby
raise "Vendored ActiveRecord 5 code! Delete #{__FILE__}!" if ActiveRecord::VERSION::MAJOR >= 5
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require 'active_record/connection_adapters/postgresql_adapter'
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require 'active_record/connection_adapters/postgresql/schema_statements'
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#
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# Monkey-patch the refused Rails 4.2 patch at https://github.com/rails/rails/pull/31330
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#
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# Updates sequence logic to support PostgreSQL 10.
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#
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# rubocop:disable all
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module ActiveRecord
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module ConnectionAdapters
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# We need #postgresql_version to be public as in ActiveRecord 5 for seed_fu
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# to work. In ActiveRecord 4, it is protected.
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# https://github.com/mbleigh/seed-fu/issues/123
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class PostgreSQLAdapter
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public :postgresql_version
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end
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module PostgreSQL
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module SchemaStatements
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# Resets the sequence of a table's primary key to the maximum value.
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def reset_pk_sequence!(table, pk = nil, sequence = nil) #:nodoc:
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unless pk and sequence
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default_pk, default_sequence = pk_and_sequence_for(table)
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pk ||= default_pk
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sequence ||= default_sequence
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end
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if @logger && pk && !sequence
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@logger.warn "#{table} has primary key #{pk} with no default sequence"
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end
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if pk && sequence
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quoted_sequence = quote_table_name(sequence)
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max_pk = select_value("SELECT MAX(#{quote_column_name pk}) FROM #{quote_table_name(table)}")
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if max_pk.nil?
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if postgresql_version >= 100000
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minvalue = select_value("SELECT seqmin FROM pg_sequence WHERE seqrelid = #{quote(quoted_sequence)}::regclass")
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else
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minvalue = select_value("SELECT min_value FROM #{quoted_sequence}")
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end
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end
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select_value <<-end_sql, 'SCHEMA'
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SELECT setval(#{quote(quoted_sequence)}, #{max_pk ? max_pk : minvalue}, #{max_pk ? true : false})
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end_sql
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end
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end
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end
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end
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end
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end
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# rubocop:enable all
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