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theoretically implemented append

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Hellow 2023-03-09 18:35:56 +01:00
parent b7bd9f6196
commit 617ca1316a
2 changed files with 18 additions and 30 deletions
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40
src/music_kraken/objects/collection.py
View File

@ -1,4 +1,5 @@
from typing import List, Iterable, Dict
from typing import List, Iterable, Dict, DefaultDict
from collections import defaultdict
from .source import SourceAttribute
from .parents import DatabaseObject
@ -19,7 +20,7 @@ class Collection:
# Attribute needs to point to
self.element_type = element_type
self._data: list = list()
self._data: List[DatabaseObject] = list()
"""
example of attribute_to_object_map
@ -33,46 +34,33 @@ class Collection:
}
```
"""
self.attribute_to_object_map: Dict[str, dict] = dict()
self._attribute_to_object_map: Dict[str, Dict[object, DatabaseObject]] = defaultdict(dict)
self.extend(data, merge_on_conflict=True)
def sort(self, reverse: bool = False, **kwargs):
self._data.sort(reverse=reverse, **kwargs)
def map_element(self, element: SourceAttribute):
for source_url in element.source_url_map:
self._by_url[source_url] = element
for attr in self.map_attributes:
value = element.__getattribute__(attr)
if type(value) != str:
# this also throws out all none values
continue
self._by_attribute[attr][string_processing.unify(value)] = element
def map_element(self, element: DatabaseObject):
for name, value in element.indexing_values:
self._attribute_to_object_map[name][value] = element
def append(self, element: DatabaseObject, merge_on_conflict: bool = True):
# if the element type has ben defide in the initializer it checks if the type maches
if self.element_type is not None and isinstance(element, self.element_type):
raise TypeError(f"{type(element)} is not the set type {self.element_type}")
for source_url in element.source_url_map:
if source_url in self._by_url:
if merge_on_conflict:
self._by_url[source_url].merge(element)
return
for attr in self.map_attributes:
value = element.__getattribute__(attr)
if value in self._by_attribute[attr]:
if merge_on_conflict:
self._by_attribute[attr][value].merge(element)
for name, value in element.indexing_values:
if value in self._attribute_to_object_map[name]:
# if the object does already exist
# thus merging and don't add it afterwards
self._attribute_to_object_map[name][value].merge(element)
return
self._data.append(element)
self.map_element(element)
def extend(self, element_list: Iterable, merge_on_conflict: bool = True):
def extend(self, element_list: Iterable[DatabaseObject], merge_on_conflict: bool = True):
for element in element_list:
self.append(element, merge_on_conflict=merge_on_conflict)

8
src/music_kraken/objects/parents.py
View File

@ -1,4 +1,4 @@
from typing import Optional, Dict, Type
from typing import Optional, Dict, Type, Tuple, List
import uuid
from ..utils.shared import (
@ -25,16 +25,16 @@ class DatabaseObject:
self.dynamic = dynamic
@property
def indexing_values(self) -> Dict[str, object]:
def indexing_values(self) -> List[Tuple[str, object]]:
"""
returns a map of the name and values of the attributes.
This helps in comparing classes for equal data (eg. being the same song but different attributes)
Returns:
Dict[str, object]: the key is the name of the attribute, and the value its value
List[Tuple[str, object]]: the first element in the tuple is the name of the attribute, the second the value.
"""
return dict()
return list()
def merge(self, other, override: bool = False):
if isinstance(other, type(self)):