Container - Code Metrics - Inspection of "Add ORM-like utilities" - jacebrowning/yorm - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — develop (#116)

by Jace

created 2016-04-13 03:06 UTC

Container A

↳ Parent: Project

Complexity

Total Complexity

Size/Duplication

Total Lines	21
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Metric	Value
wmc	4
dl	0
loc	21
ccs	10
cts	10
cp	1
rs	10

"""Converter classes."""

from abc import ABCMeta, abstractclassmethod, abstractmethod

from .. import common
from . import Mappable


log = common.logger(__name__)


class Converter(metaclass=ABCMeta):
    """Base class for attribute converters."""

    @abstractclassmethod
    def create_default(cls):
        """Create a default value for an attribute."""
        raise NotImplementedError(common.OVERRIDE_MESSAGE)

    @abstractclassmethod
    def to_value(cls, data):
        """Convert loaded data to an attribute's value."""
        raise NotImplementedError(common.OVERRIDE_MESSAGE)

    @abstractclassmethod
    def to_data(cls, value):
        """Convert an attribute to data optimized for dumping."""
        raise NotImplementedError(common.OVERRIDE_MESSAGE)


class Container(Mappable, Converter, metaclass=ABCMeta):
    """Base class for mutable attribute converters."""

    @classmethod
    def create_default(cls):
        return cls.__new__(cls)

    @classmethod
    def to_value(cls, data):
        value = cls.create_default()
        value.update_value(data, auto_attr=True)
        return value

    @abstractmethod
    def update_value(self, data, *, auto_attr):  # pragma: no cover (abstract method)
        """Update the attribute's value from loaded data."""
        raise NotImplementedError(common.OVERRIDE_MESSAGE)

    def format_data(self):
        """Format the attribute to data optimized for dumping."""
        return self.to_data(self)


1		"""Converter classes."""
2
3	1	from abc import ABCMeta, abstractclassmethod, abstractmethod
4
5	1	from .. import common
6	1	from . import Mappable
7
8
9	1	log = common.logger(__name__)
10
11
12	1	class Converter(metaclass=ABCMeta):
13		"""Base class for attribute converters."""
14
15	1	@abstractclassmethod
16		def create_default(cls):
17		"""Create a default value for an attribute."""
18	1	raise NotImplementedError(common.OVERRIDE_MESSAGE)
19
20	1	@abstractclassmethod
21		def to_value(cls, data):
22		"""Convert loaded data to an attribute's value."""
23	1	raise NotImplementedError(common.OVERRIDE_MESSAGE)
24
25	1	@abstractclassmethod
26		def to_data(cls, value):
27		"""Convert an attribute to data optimized for dumping."""
28	1	raise NotImplementedError(common.OVERRIDE_MESSAGE)
29
30
31	1	class Container(Mappable, Converter, metaclass=ABCMeta):
32		"""Base class for mutable attribute converters."""
33
34	1	@classmethod
35		def create_default(cls):
36	1	return cls.__new__(cls)
37
38	1	@classmethod
39		def to_value(cls, data):
40	1	value = cls.create_default()
41	1	value.update_value(data, auto_attr=True)
42	1	return value
43
44	1	@abstractmethod
45		def update_value(self, data, *, auto_attr): # pragma: no cover (abstract method)
46		"""Update the attribute's value from loaded data."""
47		raise NotImplementedError(common.OVERRIDE_MESSAGE)
48
49	1	def format_data(self):
50		"""Format the attribute to data optimized for dumping."""
51		return self.to_data(self)
52

jacebrowning / yorm

Pull Request — develop (#116)

Container A

Complexity

Size/Duplication

Test Coverage

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