Module: ActiveRecord::ConnectionAdapters::PostgreSQL::Quoting

# File 'activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb', line 214

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

# File 'activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb', line 199

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

# File 'activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb', line 210

def encode_range(range)
  "[#{type_cast_range_value(range.begin)},#{type_cast_range_value(range.end)}#{range.exclude_end? ? ')' : ']'}"
end

# File 'activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb', line 70

def escape_bytea(value)
  valid_raw_connection.escape_bytea(value) if value
end

# File 'activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb', line 232

def infinity?(value)
  value.respond_to?(:infinite?) && value.infinite?
end

# File 'activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb', line 195

def lookup_cast_type(sql_type)
  super(query_value("SELECT #{quote(sql_type)}::regtype::oid", "SCHEMA").to_i)
end

# File 'activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb', line 189

def lookup_cast_type_from_column(column) # :nodoc:
  verify! if type_map.nil?
  type_map.lookup(column.oid, column.fmod, column.sql_type)
end

# File 'activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb', line 97

def quote(value) # :nodoc:
  if ActiveRecord.raise_int_wider_than_64bit && value.is_a?(Integer)
    check_int_in_range(value)
  end

  case value
  when OID::Xml::Data
    "xml '#{quote_string(value.to_s)}'"
  when OID::Bit::Data
    if value.binary?
      "B'#{value}'"
    elsif value.hex?
      "X'#{value}'"
    end
  when Numeric
    if value.finite?
      super
    else
      "'#{value}'"
    end
  when OID::Array::Data
    quote(encode_array(value))
  when Range
    quote(encode_range(value))
  else
    super
  end
end

# File 'activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb', line 156

def quote_default_expression(value, column) # :nodoc:
  if value.is_a?(Proc)
    value.call
  elsif column.type == :uuid && value.is_a?(String) && value.include?("()")
    value # Does not quote function default values for UUID columns
  elsif column.respond_to?(:array?)
    type = lookup_cast_type_from_column(column)
    quote(type.serialize(value))
  else
    super
  end
end

# File 'activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb', line 138

def quote_schema_name(schema_name)
  quote_column_name(schema_name)
end

# File 'activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb', line 127

def quote_string(s) # :nodoc:
  with_raw_connection(allow_retry: true, materialize_transactions: false) do |connection|
    connection.escape(s)
  end
end

# File 'activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb', line 133

def quote_table_name_for_assignment(table, attr)
  quote_column_name(attr)
end

# File 'activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb', line 152

def quoted_binary(value) # :nodoc:
  "'#{escape_bytea(value.to_s)}'"
end

# File 'activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb', line 143

def quoted_date(value) # :nodoc:
  if value.year <= 0
    bce_year = format("%04d", -value.year + 1)
    super.sub(/^-?\d+/, bce_year) + " BC"
  else
    super
  end
end

# File 'activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb', line 169

def type_cast(value) # :nodoc:
  case value
  when Type::Binary::Data
    # Return a bind param hash with format as binary.
    # See https://deveiate.org/code/pg/PG/Connection.html#method-i-exec_prepared-doc
    # for more information
    { value: value.to_s, format: 1 }
  when OID::Xml::Data, OID::Bit::Data
    value.to_s
  when OID::Array::Data
    encode_array(value)
  when Range
    encode_range(value)
  when Rational
    value.to_f
  else
    super
  end
end

# File 'activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb', line 221

def type_cast_array(values)
  case values
  when ::Array then values.map { |item| type_cast_array(item) }
  else type_cast(values)
  end
end

# File 'activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb', line 228

def type_cast_range_value(value)
  infinity?(value) ? "" : type_cast(value)
end

# File 'activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb', line 77

def unescape_bytea(value)
  valid_raw_connection.unescape_bytea(value) if value
end