62 lines
1.8 KiB
Python
62 lines
1.8 KiB
Python
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from typing import List
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from .source import SourceAttribute
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from ...utils import string_processing
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class Collection:
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"""
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This an class for the iterables
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like tracklist or discography
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"""
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_data: List[SourceAttribute]
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_by_url: dict
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_by_attribute: dict
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def __init__(self, data: list = None, map_attributes: list = None) -> None:
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"""
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Attribute needs to point to
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"""
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self._by_url = dict()
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self.map_attributes = map_attributes or []
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self._by_attribute = {attr: dict() for attr in map_attributes}
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self._data = data or []
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for element in self._data:
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self.map_element(element=element)
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def map_element(self, element: SourceAttribute):
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self._by_url.update(element.source_url_map)
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for attr in self.map_attributes:
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value = element.__getattribute__(attr)
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if type(value) != str:
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# this also throws out all none values
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continue
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self._by_attribute[attr][string_processing.unify(value)] = element
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def get_object_with_source(self, url: str) -> any:
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"""
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Returns either None, or the object, that has a source
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matching the url.
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"""
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if url in self._by_url:
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return self._by_url[url]
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def get_object_with_attribute(self, name: str, value: str):
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if name not in self.map_attributes:
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raise ValueError(f"didn't map the attribute {name}")
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unified = string_processing.unify(value)
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if unified in self._by_attribute[name][unified]:
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return self._by_attribute[name][unified]
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def append(self, element: SourceAttribute):
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self._data.append(element)
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self.map_element(element)
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