module ActiveRecord::ConnectionAdapters::PostgreSQL::Quoting
Public Instance Methods
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# File lib/active_record/connection_adapters/postgresql/quoting.rb, line 81 def check_int_in_range(value) if value.to_int > 9223372036854775807 || value.to_int < -9223372036854775808 exception = <<~ERROR Provided value outside of the range of a signed 64bit integer. PostgreSQL will treat the column type in question as a numeric. This may result in a slow sequential scan due to a comparison being performed between an integer or bigint value and a numeric value. To allow for this potentially unwanted behavior, set ActiveRecord.raise_int_wider_than_64bit to false. ERROR raise IntegerOutOf64BitRange.new exception end end
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# File lib/active_record/connection_adapters/postgresql/quoting.rb, line 70 def escape_bytea(value) valid_raw_connection.escape_bytea(value) if value end
Escapes binary strings for bytea input to the database.
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# File lib/active_record/connection_adapters/postgresql/quoting.rb, line 138 def quote_schema_name(schema_name) quote_column_name(schema_name) end
Quotes schema names for use in SQL queries.
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# File lib/active_record/connection_adapters/postgresql/quoting.rb, line 133 def quote_table_name_for_assignment(table, attr) quote_column_name(attr) end
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# File lib/active_record/connection_adapters/postgresql/quoting.rb, line 77 def unescape_bytea(value) valid_raw_connection.unescape_bytea(value) if value end
Unescapes bytea output from a database to the binary string it represents. NOTE: This is NOT an inverse of escape_bytea! This is only to be used on escaped binary output from database drive.
Private Instance Methods
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# File lib/active_record/connection_adapters/postgresql/quoting.rb, line 243 def date_or_time_range?(range) [range.begin.class, range.end.class].intersect?([Date, DateTime, Time]) end
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# File lib/active_record/connection_adapters/postgresql/quoting.rb, line 221 def determine_encoding_of_strings_in_array(value) case value when ::Array then determine_encoding_of_strings_in_array(value.first) when ::String then value.encoding end end
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# File lib/active_record/connection_adapters/postgresql/quoting.rb, line 196 def encode_array(array_data) encoder = array_data.encoder values = type_cast_array(array_data.values) result = encoder.encode(values) if encoding = determine_encoding_of_strings_in_array(values) result.force_encoding(encoding) end result end
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# File lib/active_record/connection_adapters/postgresql/quoting.rb, line 207 def encode_range(range) lower_bound = type_cast_range_value(range.begin) upper_bound = if date_or_time_range?(range) # Postgres will convert `[today,]` to `[today,)`, making it exclusive. # We can use the special timestamp value `infinity` to force inclusion. # https://www.postgresql.org/docs/current/rangetypes.html#RANGETYPES-INFINITE range.end.nil? ? "infinity" : type_cast(range.end) else type_cast_range_value(range.end) end "[#{lower_bound},#{upper_bound}#{range.exclude_end? ? ')' : ']'}" end
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# File lib/active_record/connection_adapters/postgresql/quoting.rb, line 239 def infinity?(value) value.respond_to?(:infinite?) && value.infinite? end
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# File lib/active_record/connection_adapters/postgresql/quoting.rb, line 228 def type_cast_array(values) case values when ::Array then values.map { |item| type_cast_array(item) } else type_cast(values) end end
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# File lib/active_record/connection_adapters/postgresql/quoting.rb, line 235 def type_cast_range_value(value) infinity?(value) ? "" : type_cast(value) end