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Contents
module ActiveRecord module PGEnum register :postgresql_adapter do require "active_record/connection_adapters/postgresql_adapter" ActiveRecord::ConnectionAdapters::PostgreSQLAdapter.include ::ActiveRecord::PGEnum::PostgreSQLAdapter ActiveRecord::ConnectionAdapters::PostgreSQLAdapter::NATIVE_DATABASE_TYPES.merge!(enum: { name: "enum" }) end module PostgreSQLAdapter # Helper method used by the monkeypatch internals. Provides a hash of ENUM types as they exist currently. # # Example: # # { "foo_type" => ["foo", "bar", "baz"] } def enum_types res = exec_query(<<-SQL.strip_heredoc, "SCHEMA") SELECT t.typname AS enum_name, array_agg(e.enumlabel ORDER BY e.enumsortorder) AS enum_value FROM pg_type t JOIN pg_enum e ON t.oid = e.enumtypid JOIN pg_catalog.pg_namespace n ON n.oid = t.typnamespace WHERE n.nspname = ANY (current_schemas(false)) GROUP BY enum_name; SQL coltype = res.column_types["enum_value"] deserialize = if coltype.respond_to?(:deserialize) proc { |values| coltype.deserialize(values) } elsif coltype.respond_to?(:type_cast_from_database) proc { |values| coltype.type_cast_from_database(values) } else proc { |values| coltype.type_cast(values) } end res.rows .map { |name, values| [name, values] } .sort { |a, b| a.first <=> b.first } .each_with_object({}) { |(name, values), memo| memo[name] = deserialize.call(values) } end end end end
Version data entries
1 entries across 1 versions & 1 rubygems
Version | Path |
---|---|
activerecord-pg_enum-2.0.0 | lib/active_record/pg_enum/6.1/postgresql_adapter.rb |