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102 lines
3 KiB
Python
102 lines
3 KiB
Python
from enum import Enum
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from uuid import UUID
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from typing import TypeAlias
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from pydantic import field_validator
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from models import BaseModel, form
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class AnswerError(Enum):
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TOO_SHORT = "The text value is shorter than the minimum allowed length."
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TOO_LONG = "The text value is longer than the maximum allowed length."
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TOO_FEW_SELECTED = "The number of selected items is less than the minimum required."
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TOO_MANY_SELECTED = "The number of selected items is more than the maximum allowed."
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DUPLICATE_QUESTIONS = "Each value must correspond to a different question."
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INCORRECT_IDS = "The ids for some questions are incorrect."
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class BaseValue(BaseModel):
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question_id: UUID
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question_type: form.QuestionType
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class TextValue(BaseValue):
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question_type: form.QuestionType = form.QuestionType.text
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value: str
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def validate(self, question: form.TextQuestion) -> None:
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if question.min_length and len(self.value) < question.min_length:
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raise ValueError(AnswerError.TOO_SHORT)
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if question.max_length and len(self.value) > question.max_length:
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raise ValueError(AnswerError.TOO_LONG)
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class SelectorValue(BaseValue):
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question_type: form.QuestionType = form.QuestionType.selector
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values: set[int]
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def validate(self, question: form.SelectorQuestion) -> None:
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min_values = (
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max(question.min_values, 1)
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if question.min_values
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else 1
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)
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max_values = (
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min(question.max_values, question.options)
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if question.max_values
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else len(question.options)
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)
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if len(self.values) < min_values:
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raise ValueError(AnswerError.TOO_FEW_SELECTED)
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if len(self.values) > max_values:
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raise ValueError(AnswerError.TOO_MANY_SELECTED)
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Value: TypeAlias = SelectorValue | TextValue
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class AnswerData(BaseValue):
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values: list[Value]
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@property
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def question_uuids(self) -> dict[UUID, Value]:
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return {value.question_id: value for value in self.values}
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@field_validator("values")
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@classmethod
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def validate_values(cls, v, info):
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uuids = set()
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for value in v:
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uuids.add(value.question_id)
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if len(v) != len(uuids):
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raise ValueError(
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AnswerError.DUPLICATE_QUESTIONS
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)
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class Answer(BaseModel):
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id: int
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form: form.Form
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data: AnswerData
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@field_validator("data")
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@classmethod
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def answer_validator(
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cls,
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v,
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info
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):
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uuids = v.question_uuids
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questions = info.data["form"].data
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for question in questions:
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if question.required and question.id not in uuids:
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raise ValueError(AnswerError.REQUIRED_QUIESTION_NOT_ANSWERED)
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if question.question_type != uuids[question.id].question_type:
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raise ValueError(AnswerError.REQUIRED_QUIESTION_NOT_ANSWERED)
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del uuids[question.id]
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if len(uuids) > 0:
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raise ValueError("Some questions are not known")
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return v
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