Models

Club

Bases: Model

The Club class, made as a tree to allow nice tidy organization.

check_loop()

Raise a validation error when a loop is found within the parent list.

Source code in club/models.py

def check_loop(self):
    """Raise a validation error when a loop is found within the parent list."""
    objs = []
    cur = self
    while cur.parent is not None:
        if cur in objs:
            raise ValidationError(_("You can not make loops in clubs"))
        objs.append(cur)
        cur = cur.parent

is_owned_by(user)

Method to see if that object can be super edited by the given user.

Source code in club/models.py

def is_owned_by(self, user):
    """Method to see if that object can be super edited by the given user."""
    if user.is_anonymous:
        return False
    return user.is_board_member

can_be_edited_by(user)

Method to see if that object can be edited by the given user.

Source code in club/models.py

def can_be_edited_by(self, user):
    """Method to see if that object can be edited by the given user."""
    return self.has_rights_in_club(user)

can_be_viewed_by(user)

Method to see if that object can be seen by the given user.

Source code in club/models.py

def can_be_viewed_by(self, user):
    """Method to see if that object can be seen by the given user."""
    sub = User.objects.filter(pk=user.pk).first()
    if sub is None:
        return False
    return sub.was_subscribed

get_membership_for(user)

Return the current membership the given user.

Note

The result is cached.

Source code in club/models.py

def get_membership_for(self, user: User) -> Membership | None:
    """Return the current membership the given user.

    Note:
        The result is cached.
    """
    if user.is_anonymous:
        return None
    membership = cache.get(f"membership_{self.id}_{user.id}")
    if membership == "not_member":
        return None
    if membership is None:
        membership = self.members.filter(user=user, end_date=None).first()
        if membership is None:
            cache.set(f"membership_{self.id}_{user.id}", "not_member")
        else:
            cache.set(f"membership_{self.id}_{user.id}", membership)
    return membership

User

Bases: AbstractBaseUser

Defines the base user class, useable in every app.

This is almost the same as the auth module AbstractUser since it inherits from it, but some fields are required, and the username is generated automatically with the name of the user (see generate_username()).

Added field: nick_name, date_of_birth Required fields: email, first_name, last_name, date_of_birth

cached_groups: list[Group] property

Get the list of groups this user is in.

The result is cached for the default duration (should be 5 minutes)

Returns: A list of all the groups this user is in.

is_in_group(*, pk=None, name=None)

Check if this user is in the given group. Either a group id or a group name must be provided. If both are passed, only the id will be considered.

The group will be fetched using the given parameter. If no group is found, return False. If a group is found, check if this user is in the latter.

Returns:

Type	Description
bool	True if the user is the group, else False

Source code in core/models.py

def is_in_group(self, *, pk: int | None = None, name: str | None = None) -> bool:
    """Check if this user is in the given group.
    Either a group id or a group name must be provided.
    If both are passed, only the id will be considered.

    The group will be fetched using the given parameter.
    If no group is found, return False.
    If a group is found, check if this user is in the latter.

    Returns:
         True if the user is the group, else False
    """
    if pk is not None:
        group: Optional[Group] = get_group(pk=pk)
    elif name is not None:
        group: Optional[Group] = get_group(name=name)
    else:
        raise ValueError("You must either provide the id or the name of the group")
    if group is None:
        return False
    if group.id == settings.SITH_GROUP_PUBLIC_ID:
        return True
    if group.id == settings.SITH_GROUP_SUBSCRIBERS_ID:
        return self.is_subscribed
    if group.id == settings.SITH_GROUP_OLD_SUBSCRIBERS_ID:
        return self.was_subscribed
    if group.id == settings.SITH_GROUP_ROOT_ID:
        return self.is_root
    if group.is_meta:
        # check if this group is associated with a club
        group.__class__ = MetaGroup
        club = group.associated_club
        if club is None:
            return False
        membership = club.get_membership_for(self)
        if membership is None:
            return False
        if group.name.endswith(settings.SITH_MEMBER_SUFFIX):
            return True
        return membership.role > settings.SITH_MAXIMUM_FREE_ROLE
    return group in self.cached_groups

age()

Return the age this user has the day the method is called. If the user has not filled his age, return 0.

Source code in core/models.py

@cached_property
def age(self) -> int:
    """Return the age this user has the day the method is called.
    If the user has not filled his age, return 0.
    """
    if self.date_of_birth is None:
        return 0
    today = timezone.now()
    age = today.year - self.date_of_birth.year
    # remove a year if this year's birthday is yet to come
    age -= (today.month, today.day) < (
        self.date_of_birth.month,
        self.date_of_birth.day,
    )
    return age

get_full_name()

Returns the first_name plus the last_name, with a space in between.

Source code in core/models.py

def get_full_name(self):
    """Returns the first_name plus the last_name, with a space in between."""
    full_name = "%s %s" % (self.first_name, self.last_name)
    return full_name.strip()

get_short_name()

Returns the short name for the user.

Source code in core/models.py

def get_short_name(self):
    """Returns the short name for the user."""
    if self.nick_name:
        return self.nick_name
    return self.first_name + " " + self.last_name

get_display_name()

Returns the display name of the user.

A nickname if possible, otherwise, the full name.

Source code in core/models.py

def get_display_name(self) -> str:
    """Returns the display name of the user.

    A nickname if possible, otherwise, the full name.
    """
    if self.nick_name:
        return "%s (%s)" % (self.get_full_name(), self.nick_name)
    return self.get_full_name()

get_age()

Returns the age.

Source code in core/models.py

def get_age(self):
    """Returns the age."""
    today = timezone.now()
    born = self.date_of_birth
    return (
        today.year - born.year - ((today.month, today.day) < (born.month, born.day))
    )

get_family(godfathers_depth=4, godchildren_depth=4)

Get the family of the user, with the given depth.

Parameters:

Name	Type	Description	Default
godfathers_depth	NonNegativeInt	The number of generations of godfathers to fetch	4
godchildren_depth	NonNegativeInt	The number of generations of godchildren to fetch	4

Returns:

Type	Description
set[through]	A list of family relationships in this user's family

Source code in core/models.py

def get_family(
    self,
    godfathers_depth: NonNegativeInt = 4,
    godchildren_depth: NonNegativeInt = 4,
) -> set[User.godfathers.through]:
    """Get the family of the user, with the given depth.

    Args:
        godfathers_depth: The number of generations of godfathers to fetch
        godchildren_depth: The number of generations of godchildren to fetch

    Returns:
        A list of family relationships in this user's family
    """
    res = []
    for depth, key, reverse_key in [
        (godfathers_depth, "from_user_id", "to_user_id"),
        (godchildren_depth, "to_user_id", "from_user_id"),
    ]:
        if depth == 0:
            continue
        links = list(User.godfathers.through.objects.filter(**{key: self.id}))
        res.extend(links)
        for _ in range(1, depth):  # noqa: F402 we don't care about gettext here
            ids = [getattr(c, reverse_key) for c in links]
            links = list(
                User.godfathers.through.objects.filter(
                    **{f"{key}__in": ids}
                ).exclude(id__in=[r.id for r in res])
            )
            if not links:
                break
            res.extend(links)
    return set(res)

email_user(subject, message, from_email=None, **kwargs)

Sends an email to this User.

Source code in core/models.py

def email_user(self, subject, message, from_email=None, **kwargs):
    """Sends an email to this User."""
    if from_email is None:
        from_email = settings.DEFAULT_FROM_EMAIL
    send_mail(subject, message, from_email, [self.email], **kwargs)

generate_username()

Generates a unique username based on the first and last names.

For example: Guy Carlier gives gcarlier, and gcarlier1 if the first one exists.

Returns:

Type	Description
str	The generated username.

Source code in core/models.py

def generate_username(self) -> str:
    """Generates a unique username based on the first and last names.

    For example: Guy Carlier gives gcarlier, and gcarlier1 if the first one exists.

    Returns:
        The generated username.
    """

    def remove_accents(data):
        return "".join(
            x
            for x in unicodedata.normalize("NFKD", data)
            if unicodedata.category(x)[0] == "L"
        ).lower()

    user_name = (
        remove_accents(self.first_name[0] + self.last_name)
        .encode("ascii", "ignore")
        .decode("utf-8")
    )
    un_set = [u.username for u in User.objects.all()]
    if user_name in un_set:
        i = 1
        while user_name + str(i) in un_set:
            i += 1
        user_name += str(i)
    self.username = user_name
    return user_name

is_owner(obj)

Determine if the object is owned by the user.

Source code in core/models.py

def is_owner(self, obj):
    """Determine if the object is owned by the user."""
    if hasattr(obj, "is_owned_by") and obj.is_owned_by(self):
        return True
    if hasattr(obj, "owner_group") and self.is_in_group(pk=obj.owner_group.id):
        return True
    return self.is_root

can_edit(obj)

Determine if the object can be edited by the user.

Source code in core/models.py

def can_edit(self, obj):
    """Determine if the object can be edited by the user."""
    if hasattr(obj, "can_be_edited_by") and obj.can_be_edited_by(self):
        return True
    if hasattr(obj, "edit_groups"):
        for pk in obj.edit_groups.values_list("pk", flat=True):
            if self.is_in_group(pk=pk):
                return True
    if isinstance(obj, User) and obj == self:
        return True
    return self.is_owner(obj)

can_view(obj)

Determine if the object can be viewed by the user.

Source code in core/models.py

def can_view(self, obj):
    """Determine if the object can be viewed by the user."""
    if hasattr(obj, "can_be_viewed_by") and obj.can_be_viewed_by(self):
        return True
    if hasattr(obj, "view_groups"):
        for pk in obj.view_groups.values_list("pk", flat=True):
            if self.is_in_group(pk=pk):
                return True
    return self.can_edit(obj)

clubs_with_rights()

The list of clubs where the user has rights

Source code in core/models.py

@cached_property
def clubs_with_rights(self) -> list[Club]:
    """The list of clubs where the user has rights"""
    memberships = self.memberships.ongoing().board().select_related("club")
    return [m.club for m in memberships]

TrombiManager

Bases: Manager

AvailableTrombiManager

Bases: Manager

Trombi

Bases: Model

Main class of the trombi, the Trombi itself.

It contains the deadlines for the users, and the link to the club that makes its Trombi.

TrombiUser

Bases: Model

Bound between a User and a Trombi.

This class is here to avoid cross-references between the core, club, and trombi modules. It also adds the pictures to the profile without needing all the security like the other SithFiles.

TrombiComment

Bases: Model

A comment given by someone to someone else in the same Trombi instance.

TrombiClubMembership

Bases: Model

A membership in a club.

get_semester_code(d=None)

Return the semester code of the given date. If no date is given, return the semester code of the current semester.

The semester code is an upper letter (A for autumn, P for spring), followed by the last two digits of the year. For example, the autumn semester of 2018 is "A18".

Parameters:

Name	Type	Description	Default
d	Optional[date]	the date to use to compute the semester. If None, use today's date.	None

Returns:

Type	Description
str	the semester code corresponding to the given date

Source code in core/utils.py

def get_semester_code(d: Optional[date] = None) -> str:
    """Return the semester code of the given date.
    If no date is given, return the semester code of the current semester.

    The semester code is an upper letter (A for autumn, P for spring),
    followed by the last two digits of the year.
    For example, the autumn semester of 2018 is "A18".

    Args:
        d: the date to use to compute the semester. If None, use today's date.

    Returns:
        the semester code corresponding to the given date
    """
    if d is None:
        d = localdate()

    start = get_start_of_semester(d)

    if (start.month, start.day) == settings.SITH_SEMESTER_START_AUTUMN:
        return "A" + str(start.year)[-2:]
    return "P" + str(start.year)[-2:]