school_api.session.memorystorage.MemoryStorage.get() - Code Metrics - dairoot/school-api - Measure and Improve Code Quality continuously with Scrutinizer

MemoryStorage.get() A
last analyzed 2020-10-27 13:05 UTC

↳ Parent: school_api.session.memorystorage

Complexity

Conditions

Size

Total Lines	11
Code Lines	9

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	4
eloc	9
nop	3
dl	0
loc	11
rs	9.95
c	0
b	0
f	0

# -*- coding: utf-8 -*-
from __future__ import absolute_import, unicode_literals
import time
from school_api.session import SessionStorage
from school_api.utils import to_text


class MemoryStorage(SessionStorage):
    ''' 非持久化缓存 不推荐使用'''

    def __init__(self):
        self._data = {}

    def key_name(self, key):
        return 'school:{0}'.format(key)

    def get(self, key, default=None):
        key = self.key_name(key)
        value = None
        data = self._data.get(key, default)
        if data:
            if data['expires_at'] is True or data['expires_at'] > time.time():
                # 为True时：永不过期， 大于当前时间为：不到过期时间
                value = data['value']
            else:
                self.delete(key)
        return value

    def set(self, key, value, ttl=None):

        if value is None:
            return

        key = self.key_name(key)
        expires_at = not ttl or time.time() + ttl
        data = {'value': value, 'expires_at': expires_at}
        self._data[key] = data

    def delete(self, key):
        key = self.key_name(key)
        self._data.pop(key, None)

    def expires_time(self, key):
        data = self._data.get(self.key_name(key))
        return data['expires_at'] - time.time()


1			# -- coding: utf-8 --
2			from __future__ import absolute_import, unicode_literals
3			import time
4			from school_api.session import SessionStorage
5			from school_api.utils import to_text
6
7
8			class MemoryStorage(SessionStorage):
9			''' 非持久化缓存不推荐使用'''
10
11			def __init__(self):
12			self._data = {}
13
14			def key_name(self, key):
15			return 'school:{0}'.format(key)
16
17			def get(self, key, default=None):
18			key = self.key_name(key)
19			value = None
20			data = self._data.get(key, default)
21			if data:
22			if data['expires_at'] is True or data['expires_at'] > time.time():
23			# 为True时：永不过期，大于当前时间为：不到过期时间
24			value = data['value']
25			else:
26			self.delete(key)
27			return value
28
29			def set(self, key, value, ttl=None):
30
31			if value is None:
32			return
33
34			key = self.key_name(key)
35			expires_at = not ttl or time.time() + ttl
36			data = {'value': value, 'expires_at': expires_at}
37			self._data[key] = data
38
39			def delete(self, key):
40			key = self.key_name(key)
41			self._data.pop(key, None)
42
43			def expires_time(self, key):
44			data = self._data.get(self.key_name(key))
45			return data['expires_at'] - time.time()
46

dairoot / school-api

MemoryStorage.get() A last analyzed 2020-10-27 13:05 UTC

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MemoryStorage.get() A
last analyzed 2020-10-27 13:05 UTC