Convert role column to a new table

areas/apps/models.py

@@ -23,7 +23,7 @@ class AppRole(db.Model):
 
     user_id = db.Column(String(length=64), primary_key=True)
     app_id = db.Column(Integer, ForeignKey("app.id"), primary_key=True)
-    role = db.Column(String(length=64))
+    role_id = db.Column(Integer, ForeignKey("role.id"))
 
     def __repr__(self):
         return f"{self.role} for {self.user_id} on {self.app_id}"

areas/users/__init__.py

@@ -1 +1,2 @@
 from .users import *
+from .models import *

areas/users/models.py

@@ -0,0 +1,10 @@
+from sqlalchemy import Integer, String
+from database import db
+
+
+class Role(db.Model):
+    id = db.Column(Integer, primary_key=True)
+    name = db.Column(String(length=64))
+
+    def __repr__(self):
+        return f"Role {self.name}"

migrations/versions/5f462d2d9d25_convert_role_column_to_table.py

@@ -0,0 +1,41 @@
+"""convert role column to table
+
+Revision ID: 5f462d2d9d25
+Revises: 27761560bbcb
+Create Date: 2022-04-13 15:00:27.182898
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import mysql
+
+# revision identifiers, used by Alembic.
+revision = "5f462d2d9d25"
+down_revision = "27761560bbcb"
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table(
+        "role",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("name", sa.String(length=64), nullable=True),
+        sa.PrimaryKeyConstraint("id"),
+    )
+    op.add_column("app_role", sa.Column("role_id", sa.Integer(), nullable=True))
+    op.create_foreign_key(None, "app_role", "role", ["role_id"], ["id"])
+    op.drop_column("app_role", "role")
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column(
+        "app_role", sa.Column("role", mysql.VARCHAR(length=64), nullable=True)
+    )
+    op.drop_constraint(None, "app_role", type_="foreignkey")
+    op.drop_column("app_role", "role_id")
+    op.drop_table("role")
+    # ### end Alembic commands ###