First commit

app/models/inspector_assignment.py

@@ -0,0 +1,25 @@
+from app import db
+from app.utils.time_utils import now_eastern
+
+
+class InspectorAssignment(db.Model):
+    __tablename__ = 'inspector_assignments'
+
+    id         = db.Column(db.Integer, primary_key=True)
+    user_id    = db.Column(db.Integer,
+                           db.ForeignKey('users.id', ondelete='CASCADE'),
+                           nullable=False, index=True)
+    project_id = db.Column(db.Integer,
+                           db.ForeignKey('projects.id', ondelete='CASCADE'),
+                           nullable=False)
+    created_at = db.Column(db.DateTime, nullable=False, default=now_eastern)
+
+    inspector = db.relationship('User',    backref='inspector_assignments')
+    project   = db.relationship('Project', backref='inspector_assignments')
+
+    __table_args__ = (
+        db.UniqueConstraint('user_id', 'project_id', name='uq_inspector_project'),
+    )
+
+    def __repr__(self):
+        return f'<InspectorAssignment user={self.user_id} project={self.project_id}>'