Class ProjectDomainForm

app/forms/project.py:287–353

class ProjectDomainForm(StarletteForm):
    domain_id = HiddenField()
    hostname = StringField(
        _l("Domain"),
        validators=[
            DataRequired(),
            Length(min=1, max=255),
            Regexp(
                r"^[a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(\.[a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)+$",
                message=_l("Please enter a valid domain name"),
            ),
        ],
    )
    type = SelectField(
        _l("Type"),
        validators=[DataRequired()],
        choices={
            _l("Routing"): [("route", _l("Route"))],
            _l("Permanent Redirect"): [
                ("301", _l("301 - Moved Permanently")),
                ("308", _l("308 - Permanent Redirect")),
            ],
            _l("Temporary Redirect"): [
                ("302", _l("302 - Found")),
                ("307", _l("307 - Temporary Redirect")),
            ],
        },
    )
    environment_id = SelectField(_l("Environment"), choices=[])

    def __init__(
        self,
        *args,
        project: Project,
        domains: list[Domain] | None = None,
        db: AsyncSession,
        **kwargs,
    ):
        super().__init__(*args, **kwargs)
        self.project = project
        self.domains = domains or []
        self.db = db

        self.environment_id.choices = [
            (env["id"], env["name"]) for env in project.active_environments
        ]

    async def async_validate_hostname(self, field):
        if field.data:
            query = select(Domain).where(
                func.lower(Domain.hostname) == field.data.lower()
            )
            if self.domain_id.data:
                query = query.where(Domain.id != int(self.domain_id.data))
            result = await self.db.execute(query)
            domain = result.scalar_one_or_none()
            if domain:
                raise ValidationError(_("This domain is already in use."))