Feat: add support for categories in the database.

app/models/category.py

+from ..database import db
+
+
+class Category(db.Model):
+    code = db.Column(db.String, primary_key=True)
+    title = db.Column(db.String)
+
+    @property
+    def name(self) -> str:
+        return self.title if self.title else self.code

app/models/person.py

@@ -5,6 +5,7 @@ class Person(db.Model):
     username = db.Column(db.String, primary_key=True)
     firstname = db.Column(db.String, nullable=False)
     lastname = db.Column(db.String, nullable=False)
+    categories = db.Column(db.ARRAY(db.String), nullable=False)
 
     @property
     def full_name(self) -> str:

app/models/project.py

 from ..database import db
+from .category import Category
 from .dialect_compatibility import utcnow
 
 
@@ -8,6 +9,7 @@ class Project(db.Model):
     on_behalf = db.Column(db.String)
     title = db.Column(db.String)
     description = db.Column(db.String)
+    category = db.Column(db.String, db.ForeignKey(Category.code), nullable=False)
     timestamp = db.Column(db.DateTime, nullable=False, server_default=utcnow())
     deleted = db.Column(db.DateTime)
 

migrations/versions/c5b560bb3d58_add_category_information.py

+"""Add category information.
+
+Revision ID: c5b560bb3d58
+Revises: c7458a7dd4d8
+Create Date: 2023-02-03 17:59:59.982256
+
+"""
+import sqlalchemy as sa
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision = "c5b560bb3d58"
+down_revision = "c7458a7dd4d8"
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column(
+        "person", sa.Column("categories", sa.ARRAY(sa.String()), nullable=False)
+    )
+    op.add_column("project", sa.Column("category", sa.String(), nullable=False))
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column("project", "category")
+    op.drop_column("person", "categories")
+    # ### end Alembic commands ###

migrations/versions/e794d182f9d3_add_foreign_key_for_category_in_project_.py

+"""Add foreign key for category in project table.
+
+Revision ID: e794d182f9d3
+Revises: c5b560bb3d58
+Create Date: 2023-02-03 18:02:46.930212
+
+"""
+import sqlalchemy as sa
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision = "e794d182f9d3"
+down_revision = "c5b560bb3d58"
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table(
+        "category",
+        sa.Column("code", sa.String(), nullable=False),
+        sa.Column("title", sa.String(), nullable=True),
+        sa.PrimaryKeyConstraint("code"),
+    )
+    op.create_foreign_key(None, "project", "category", ["category"], ["code"])
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_constraint(None, "project", type_="foreignkey")
+    op.drop_table("category")
+    # ### end Alembic commands ###