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"""The Badge model."""
from sqlalchemy import (
Column,
Integer,
Text,
LargeBinary,
select,
)
from sqlalchemy.orm import relationship
from pyramid.httpexceptions import HTTPNotFound
from .meta import Base
class Badge(Base):
"""Represents a badge.
Badges have a title and an image and can be defined by the admin.
:ivar id: Database ID.
:vartype id: int
:ivar title: Title of the badge.
:vartype title: str
:ivar image: Image of the badge.
:vartype image: bytes
:ivar tracks: Tracks associated with this badge.
:vartype tracks: list[fietsboek.models.track.Track]
"""
# pylint: disable=too-few-public-methods
__tablename__ = 'badges'
id = Column(Integer, primary_key=True)
title = Column(Text)
image = Column(LargeBinary)
tracks = relationship('Track', secondary='track_badge_assoc', back_populates='badges')
@classmethod
def factory(cls, request):
"""Factory method to pass to a route definition.
This factory retrieves the badge based on the ``badge_id`` matched
route parameter, and returns the badge. If the badge is not found,
``HTTPNotFound`` is raised.
:raises pyramid.httpexception.NotFound: If the badge is not found.
:param request: The pyramid request.
:type request: ~pyramid.request.Request
:return: The badge.
:type: Badge
"""
query = select(cls).filter_by(id=request.matchdict["badge_id"])
badge_object = request.dbsession.execute(query).scalar_one_or_none()
if badge_object is None:
raise HTTPNotFound()
return badge_object
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