diff options
Diffstat (limited to 'activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb')
| -rw-r--r-- | activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb | 53 |
1 files changed, 33 insertions, 20 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb index a11a786ec7..1cef8339f5 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb @@ -85,6 +85,19 @@ module ActiveRecord class PostgreSQLAdapter < AbstractAdapter ADAPTER_NAME = "PostgreSQL" + ## + # :singleton-method: + # PostgreSQL allows the creation of "unlogged" tables, which do not record + # data in the PostgreSQL Write-Ahead Log. This can make the tables faster, + # but significantly increases the risk of data loss if the database + # crashes. As a result, this should not be used in production + # environments. If you would like all created tables to be unlogged in + # the test environment you can add the following line to your test.rb + # file: + # + # ActiveRecord::ConnectionAdapters::PostgreSQLAdapter.create_unlogged_tables = true + class_attribute :create_unlogged_tables, default: false + NATIVE_DATABASE_TYPES = { primary_key: "bigserial primary key", string: { name: "character varying" }, @@ -428,28 +441,28 @@ module ActiveRecord LOCK_NOT_AVAILABLE = "55P03" QUERY_CANCELED = "57014" - def translate_exception(exception, message) + def translate_exception(exception, message:, sql:, binds:) return exception unless exception.respond_to?(:result) case exception.result.try(:error_field, PG::PG_DIAG_SQLSTATE) when UNIQUE_VIOLATION - RecordNotUnique.new(message) + RecordNotUnique.new(message, sql: sql, binds: binds) when FOREIGN_KEY_VIOLATION - InvalidForeignKey.new(message) + InvalidForeignKey.new(message, sql: sql, binds: binds) when VALUE_LIMIT_VIOLATION - ValueTooLong.new(message) + ValueTooLong.new(message, sql: sql, binds: binds) when NUMERIC_VALUE_OUT_OF_RANGE - RangeError.new(message) + RangeError.new(message, sql: sql, binds: binds) when NOT_NULL_VIOLATION - NotNullViolation.new(message) + NotNullViolation.new(message, sql: sql, binds: binds) when SERIALIZATION_FAILURE - SerializationFailure.new(message) + SerializationFailure.new(message, sql: sql, binds: binds) when DEADLOCK_DETECTED - Deadlocked.new(message) + Deadlocked.new(message, sql: sql, binds: binds) when LOCK_NOT_AVAILABLE - LockWaitTimeout.new(message) + LockWaitTimeout.new(message, sql: sql, binds: binds) when QUERY_CANCELED - QueryCanceled.new(message) + QueryCanceled.new(message, sql: sql, binds: binds) else super end @@ -577,13 +590,13 @@ module ActiveRecord initializer = OID::TypeMapInitializer.new(type_map) if supports_ranges? - query = <<-SQL + query = <<~SQL SELECT t.oid, t.typname, t.typelem, t.typdelim, t.typinput, r.rngsubtype, t.typtype, t.typbasetype FROM pg_type as t LEFT JOIN pg_range as r ON oid = rngtypid SQL else - query = <<-SQL + query = <<~SQL SELECT t.oid, t.typname, t.typelem, t.typdelim, t.typinput, t.typtype, t.typbasetype FROM pg_type as t SQL @@ -629,7 +642,7 @@ module ActiveRecord def exec_cache(sql, name, binds) materialize_transactions - stmt_key = prepare_statement(sql) + stmt_key = prepare_statement(sql, binds) type_casted_binds = type_casted_binds(binds) log(sql, name, binds, type_casted_binds, stmt_key) do @@ -683,7 +696,7 @@ module ActiveRecord # Prepare the statement if it hasn't been prepared, return # the statement key. - def prepare_statement(sql) + def prepare_statement(sql, binds) @lock.synchronize do sql_key = sql_key(sql) unless @statements.key? sql_key @@ -691,7 +704,7 @@ module ActiveRecord begin @connection.prepare nextkey, sql rescue => e - raise translate_exception_class(e, sql) + raise translate_exception_class(e, sql, binds) end # Clear the queue @connection.get_last_result @@ -763,7 +776,7 @@ module ActiveRecord # - format_type includes the column size constraint, e.g. varchar(50) # - ::regclass is a function that gives the id for a table name def column_definitions(table_name) - query(<<-end_sql, "SCHEMA") + query(<<~SQL, "SCHEMA") SELECT a.attname, format_type(a.atttypid, a.atttypmod), pg_get_expr(d.adbin, d.adrelid), a.attnotnull, a.atttypid, a.atttypmod, c.collname, col_description(a.attrelid, a.attnum) AS comment @@ -774,7 +787,7 @@ module ActiveRecord WHERE a.attrelid = #{quote(quote_table_name(table_name))}::regclass AND a.attnum > 0 AND NOT a.attisdropped ORDER BY a.attnum - end_sql + SQL end def extract_table_ref_from_insert_sql(sql) @@ -789,7 +802,7 @@ module ActiveRecord def can_perform_case_insensitive_comparison_for?(column) @case_insensitive_cache ||= {} @case_insensitive_cache[column.sql_type] ||= begin - sql = <<-end_sql + sql = <<~SQL SELECT exists( SELECT * FROM pg_proc WHERE proname = 'lower' @@ -801,7 +814,7 @@ module ActiveRecord WHERE proname = 'lower' AND castsource = #{quote column.sql_type}::regtype ) - end_sql + SQL execute_and_clear(sql, "SCHEMA", []) do |result| result.getvalue(0, 0) end @@ -827,7 +840,7 @@ module ActiveRecord "bool" => PG::TextDecoder::Boolean, } known_coder_types = coders_by_name.keys.map { |n| quote(n) } - query = <<-SQL % known_coder_types.join(", ") + query = <<~SQL % known_coder_types.join(", ") SELECT t.oid, t.typname FROM pg_type as t WHERE t.typname IN (%s) |