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29 lines
857 B
Python
29 lines
857 B
Python
import base64
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import binascii
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from .models import Candidate, Season
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class CandidateConverter:
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regex = r"[A-Za-z\d]{5}\/[\w\-=]+"
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def to_python(self, value: str) -> Candidate:
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season_code, base64_name = value.split("/")
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try:
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name = base64.urlsafe_b64decode(base64_name).decode()
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except binascii.Error:
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raise ValueError
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try:
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season = Season.objects.get(season_code=season_code)
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candidate = Candidate.objects.get(name=name, season=season)
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return candidate
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except [Season.DoesNotExist, Candidate.DoesNotExist]:
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raise ValueError
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def to_url(self, candidate: Candidate) -> str:
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base64_candidate = base64.urlsafe_b64encode(candidate.name.encode()).decode()
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return f"{candidate.season.season_code}/{base64_candidate}"
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