method
initialize_type_map
v4.0.2 -
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Class: ActiveRecord::ConnectionAdapters::PostgreSQLAdapter
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initialize_type_map()
private
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# File activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb, line 740 def initialize_type_map result = execute('SELECT oid, typname, typelem, typdelim, typinput FROM pg_type', 'SCHEMA') leaves, nodes = result.partition { |row| row['typelem'] == '0' } # populate the leaf nodes leaves.find_all { |row| OID.registered_type? row['typname'] }.each do |row| OID::TYPE_MAP[row['oid'].to_i] = OID::NAMES[row['typname']] end arrays, nodes = nodes.partition { |row| row['typinput'] == 'array_in' } # populate composite types nodes.find_all { |row| OID::TYPE_MAP.key? row['typelem'].to_i }.each do |row| if OID.registered_type? row['typname'] # this composite type is explicitly registered vector = OID::NAMES[row['typname']] else # use the default for composite types vector = OID::Vector.new row['typdelim'], OID::TYPE_MAP[row['typelem'].to_i] end OID::TYPE_MAP[row['oid'].to_i] = vector end # populate array types arrays.find_all { |row| OID::TYPE_MAP.key? row['typelem'].to_i }.each do |row| array = OID::Array.new OID::TYPE_MAP[row['typelem'].to_i] OID::TYPE_MAP[row['oid'].to_i] = array end end