formaptix-server/models/form.py
2024-08-15 18:01:01 +00:00

112 lines
3.2 KiB
Python

from enum import IntEnum, Enum
from typing import TypeAlias
from uuid import UUID, uuid4
from pydantic import Field, field_validator, field_serializer
from models import BaseModel
class FormError(Enum):
MIN_LENGTH_ERR = "min_length must be greater than or equal to 0."
MAX_LENGTH_ERR = "max_length must be greater than 0."
MAX_LENGTH_LESS_THAN_MIN_LENGTH = "max_length cannot be less than min_length."
MIN_VALUES_ERR = "min_values must be greater than or equal to 1."
MAX_VALUES_ERR = "max_values cannot be less than min_length or greater than the number of options."
SIMMILAR_ID_ERR = "All questions must have different id's"
class QuestionType(IntEnum):
text = 1
selector = 2
class BaseQuestion(BaseModel):
id: UUID = Field(default_factory=uuid4)
question_type: QuestionType
label: str = Field(min_length=1)
description: str | None = Field(None, min_length=1)
required: bool = True
@field_serializer("id")
def serialize_id(self, id: UUID):
return str(id)
class Option(BaseModel):
label: str
class TextQuestion(BaseQuestion):
question_type: QuestionType = QuestionType.text
min_length: int | None = None
max_length: int | None = None
@field_validator("min_length")
@classmethod
def validate_min_length(cls, v, info):
if v is not None and v < 0:
raise ValueError(FormError.MIN_LENGTH_ERR.value)
return v
@field_validator("max_length")
@classmethod
def validate_max_length(cls, v, info):
min_length = info.data.get("min_length")
if v is not None:
if v <= 0:
raise ValueError(FormError.MAX_LENGTH_TOO_SMALL.value)
if min_length is not None and v < min_length:
raise ValueError(FormError.MAX_LENGTH_LESS_THAN_MIN_LENGTH.value)
return v
class SelectorQuestion(BaseQuestion):
question_type: QuestionType = QuestionType.selector
min_values: int = 1
max_values: int | None = None
options: list[Option] = []
@field_validator("min_values")
@classmethod
def validate_min_values(cls, v, info):
options = info.data.get("options")
options = [] if not options else options
if v is not None and (v < 1 or v > len(options)):
raise ValueError(FormError.MIN_VALUES_ERR.value)
return v
@field_validator("max_values")
@classmethod
def validate_max_values(cls, v, info):
min_values = info.data.get("min_values")
options = info.data.get("options")
if v is not None and (v > len(options) or min_values > v):
raise ValueError(FormError.MAX_VALUES_ERR.value)
return v
Question: TypeAlias = SelectorQuestion | TextQuestion
class FormData(BaseModel):
name: str = Field(min_length=1)
description: str | None = Field(None, min_length=1)
questions: list[Question] = []
@field_validator("questions")
@classmethod
def validate_questions(cls, v, info):
uuids = set()
for question in v:
uuids.add(question.id)
if len(v) != len(uuids):
raise ValueError(FormError.SIMMILAR_ID_ERR.value)
return v
class Form(BaseModel):
id: int
data: FormData