2021.10 #41
@ -1,9 +1,16 @@
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from collections import Callable
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from cpl_query._query.where_query import where_query
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from cpl_query.exceptions import ExceptionArgument, ArgumentNoneException
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from cpl_query.extension.iterable_abc import IterableABC
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def all_query(_list: IterableABC, _func: Callable) -> bool:
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if _list is None:
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raise ArgumentNoneException(ExceptionArgument.list)
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if _func is None:
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raise ArgumentNoneException(ExceptionArgument.func)
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result = where_query(_list, _func)
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return len(result) == len(_list)
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@ -1,9 +1,16 @@
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from collections import Callable
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from cpl_query._query.where_query import where_query
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from cpl_query.exceptions import ArgumentNoneException, ExceptionArgument
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from cpl_query.extension.iterable_abc import IterableABC
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def any_query(_list: IterableABC, _func: Callable) -> bool:
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if _list is None:
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raise ArgumentNoneException(ExceptionArgument.list)
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if _func is None:
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raise ArgumentNoneException(ExceptionArgument.func)
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result = where_query(_list, _func)
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return len(result) > 0
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@ -1,6 +1,6 @@
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from typing import Callable, Union
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from cpl_query.exceptions import InvalidTypeException, WrongTypeException
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from cpl_query.exceptions import InvalidTypeException, WrongTypeException, ExceptionArgument, ArgumentNoneException
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from cpl_query.extension.iterable_abc import IterableABC
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@ -8,6 +8,12 @@ def avg_query(_list: IterableABC, _t: type, _func: Callable) -> Union[int, float
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average = 0
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count = len(_list)
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if _list is None:
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raise ArgumentNoneException(ExceptionArgument.list)
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if _func is None:
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raise ArgumentNoneException(ExceptionArgument.func)
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if _t != int and _t != float and _t != complex:
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raise InvalidTypeException()
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@ -1,9 +1,13 @@
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from typing import Optional
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from cpl_query.exceptions import ArgumentNoneException, ExceptionArgument
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from cpl_query.extension.iterable_abc import IterableABC
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def first_query(_list: IterableABC) -> any:
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if _list is None:
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raise ArgumentNoneException(ExceptionArgument.list)
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if len(_list) == 0:
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raise Exception('Index out of range')
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@ -11,6 +15,9 @@ def first_query(_list: IterableABC) -> any:
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def first_or_default_query(_list: IterableABC) -> Optional[any]:
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if _list is None:
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raise ArgumentNoneException(ExceptionArgument.list)
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if len(_list) == 0:
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return None
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@ -1,8 +1,15 @@
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from collections import Callable
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from cpl_query.exceptions import ExceptionArgument, ArgumentNoneException
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from cpl_query.extension.iterable_abc import IterableABC
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def for_each_query(_list: IterableABC, func: Callable):
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def for_each_query(_list: IterableABC, _func: Callable):
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if _list is None:
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raise ArgumentNoneException(ExceptionArgument.list)
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if _func is None:
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raise ArgumentNoneException(ExceptionArgument.func)
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for element in _list:
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func(element)
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_func(element)
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@ -1,5 +1,6 @@
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from collections import Callable
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from cpl_query.exceptions import ExceptionArgument, ArgumentNoneException
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from cpl_query.extension.iterable_abc import IterableABC
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from cpl_query.extension.ordered_iterable_abc import OrderedIterableABC
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@ -12,6 +13,12 @@ def order_by_query(_list: IterableABC, _func: Callable) -> OrderedIterableABC:
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def order_by_descending_query(_list: IterableABC, _func: Callable) -> OrderedIterableABC:
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if _list is None:
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raise ArgumentNoneException(ExceptionArgument.list)
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if _func is None:
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raise ArgumentNoneException(ExceptionArgument.func)
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result = OrderedIterableABC(_func)
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_list.sort(key=_func, reverse=True)
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result.extend(_list)
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@ -19,10 +26,22 @@ def order_by_descending_query(_list: IterableABC, _func: Callable) -> OrderedIte
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def then_by_query(_list: OrderedIterableABC, _func: Callable) -> OrderedIterableABC:
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if _list is None:
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raise ArgumentNoneException(ExceptionArgument.list)
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if _func is None:
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raise ArgumentNoneException(ExceptionArgument.func)
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_list.sort(key=_func)
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return _list
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def then_by_descending_query(_list: OrderedIterableABC, _func: Callable) -> OrderedIterableABC:
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if _list is None:
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raise ArgumentNoneException(ExceptionArgument.list)
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if _func is None:
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raise ArgumentNoneException(ExceptionArgument.func)
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_list.sort(key=_func, reverse=True)
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return _list
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@ -1,9 +1,13 @@
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from typing import Optional
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from cpl_query.exceptions import ArgumentNoneException, ExceptionArgument
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from cpl_query.extension.iterable_abc import IterableABC
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def single_query(_list: IterableABC) -> any:
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if _list is None:
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raise ArgumentNoneException(ExceptionArgument.list)
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if len(_list) > 1:
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raise Exception('Found more than one element')
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elif len(_list) == 0:
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@ -13,6 +17,9 @@ def single_query(_list: IterableABC) -> any:
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def single_or_default_query(_list: IterableABC) -> Optional[any]:
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if _list is None:
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raise ArgumentNoneException(ExceptionArgument.list)
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if len(_list) > 1:
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raise Exception('Index out of range')
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elif len(_list) == 0:
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@ -1,9 +1,16 @@
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from collections import Callable
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from cpl_query.exceptions import ArgumentNoneException, ExceptionArgument
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from cpl_query.extension.iterable_abc import IterableABC
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def where_query(_list: IterableABC, _func: Callable) -> IterableABC:
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if _list is None:
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raise ArgumentNoneException(ExceptionArgument.list)
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if _func is None:
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raise ArgumentNoneException(ExceptionArgument.func)
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result = IterableABC()
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for element in _list:
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if _func(element):
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@ -1,3 +1,20 @@
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from enum import Enum
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# models
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class ExceptionArgument(Enum):
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list = 'list'
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func = 'func'
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type = 'type'
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# exceptions
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class ArgumentNoneException(Exception):
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def __init__(self, arg: ExceptionArgument):
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Exception.__init__(self, f'Argument {arg} is None')
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class InvalidTypeException(Exception):
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pass
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@ -18,11 +18,4 @@ class IterableTest(unittest.TestCase):
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self._list.append(3)
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self.assertEqual(self._list, [1, 2, 3])
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self._clear()
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def test_append_wrong_type(self):
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self._list.append(1)
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self._list.append(2)
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self.assertRaises(Exception, lambda v: self._list.append(v), '3')
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self._clear()
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@ -3,7 +3,7 @@ import unittest
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from random import randint
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from cpl.utils import String
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from cpl_query.exceptions import InvalidTypeException, WrongTypeException
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from cpl_query.exceptions import InvalidTypeException, WrongTypeException, ArgumentNoneException
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from cpl_query.extension.list import List
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from cpl_query.tests.models import User, Address
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@ -70,17 +70,14 @@ class QueryTest(unittest.TestCase):
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self.assertEqual(res, avg)
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def test_avg_invalid(self):
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def _():
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res = self._tests.average(str, lambda u: u.address.nr)
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def invalid():
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e_res = self._tests.average(str, lambda u: u.address.nr)
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self.assertRaises(InvalidTypeException, _)
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def wrong():
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e_res = self._tests.average(int, lambda u: u.address.street)
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def test_avg_wrong(self):
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def _():
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res = self._tests.average(int, lambda u: u.address.street)
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self.assertRaises(WrongTypeException, _)
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self.assertRaises(InvalidTypeException, invalid)
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self.assertRaises(WrongTypeException, wrong)
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def test_first(self):
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results = []
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@ -179,3 +176,8 @@ class QueryTest(unittest.TestCase):
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res = self._tests.where(lambda u: u.address.nr == 5)
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self.assertEqual(len(results), len(res))
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def ex():
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e_res = self._tests.where(None)
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self.assertRaises(ArgumentNoneException, ex)
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