Squash alembic migrations into single baseline

backend/alembic/versions/0a1b2c3d4e5f_baseline_schema.py

@@ -1,28 +1,29 @@
-"""baseline schema (no HR module)
+"""Baseline schema (squashed)
 
-Revision ID: bacd5e6a253d
+Revision ID: 0a1b2c3d4e5f
 Revises:
-Create Date: 2026-02-02 16:37:34.122971
+Create Date: 2026-02-02
+
+This is a squashed baseline migration for Mission Control.
+All prior incremental migrations were removed to keep the repo simple.
 
 """
 
-from typing import Sequence, Union
+from __future__ import annotations
 
+from alembic import op
 import sqlalchemy as sa
 import sqlmodel
 
-from alembic import op
 
 # revision identifiers, used by Alembic.
-revision: str = "bacd5e6a253d"
+revision = "0a1b2c3d4e5f"
-down_revision: Union[str, Sequence[str], None] = None
+down_revision = None
-branch_labels: Union[str, Sequence[str], None] = None
+branch_labels = None
-depends_on: Union[str, Sequence[str], None] = None
+depends_on = None
 
 
 def upgrade() -> None:
-    """Upgrade schema."""
-
     # Departments (FK to employees added after employees table exists)
     op.create_table(
         "departments",
@@ -40,6 +41,7 @@ def upgrade() -> None:
         sa.Column("name", sqlmodel.sql.sqltypes.AutoString(), nullable=False),
         sa.Column("employee_type", sqlmodel.sql.sqltypes.AutoString(), nullable=False),
         sa.Column("department_id", sa.Integer(), nullable=True),
+        sa.Column("team_id", sa.Integer(), nullable=True),
         sa.Column("manager_id", sa.Integer(), nullable=True),
         sa.Column("title", sqlmodel.sql.sqltypes.AutoString(), nullable=True),
         sa.Column("status", sqlmodel.sql.sqltypes.AutoString(), nullable=False),
@@ -53,15 +55,50 @@ def upgrade() -> None:
     # Break the departments<->employees cycle: add this FK after both tables exist
     op.create_foreign_key(None, "departments", "employees", ["head_employee_id"], ["id"])
 
+    # Teams
+    op.create_table(
+        "teams",
+        sa.Column("id", sa.Integer(), primary_key=True, nullable=False),
+        sa.Column("name", sa.String(), nullable=False),
+        sa.Column("department_id", sa.Integer(), nullable=False),
+        sa.Column("lead_employee_id", sa.Integer(), nullable=True),
+        sa.ForeignKeyConstraint(["department_id"], ["departments.id"], ondelete="CASCADE"),
+        sa.ForeignKeyConstraint(["lead_employee_id"], ["employees.id"], ondelete="SET NULL"),
+        sa.UniqueConstraint("department_id", "name", name="uq_teams_department_id_name"),
+    )
+    op.create_index("ix_teams_name", "teams", ["name"], unique=False)
+    op.create_index("ix_teams_department_id", "teams", ["department_id"], unique=False)
+
+    # Employees.team_id FK (added after teams exists)
+    op.create_index("ix_employees_team_id", "employees", ["team_id"], unique=False)
+    op.create_foreign_key(
+        "fk_employees_team_id_teams",
+        "employees",
+        "teams",
+        ["team_id"],
+        ["id"],
+        ondelete="SET NULL",
+    )
+
     # Projects
     op.create_table(
         "projects",
         sa.Column("id", sa.Integer(), nullable=False),
         sa.Column("name", sqlmodel.sql.sqltypes.AutoString(), nullable=False),
         sa.Column("status", sqlmodel.sql.sqltypes.AutoString(), nullable=False),
+        sa.Column("team_id", sa.Integer(), nullable=True),
         sa.PrimaryKeyConstraint("id"),
     )
     op.create_index(op.f("ix_projects_name"), "projects", ["name"], unique=True)
+    op.create_index("ix_projects_team_id", "projects", ["team_id"], unique=False)
+    op.create_foreign_key(
+        "fk_projects_team_id_teams",
+        "projects",
+        "teams",
+        ["team_id"],
+        ["id"],
+        ondelete="SET NULL",
+    )
 
     # Activities
     op.create_table(
@@ -129,8 +166,6 @@ def upgrade() -> None:
 
 
 def downgrade() -> None:
-    """Downgrade schema."""
-
     op.drop_index(op.f("ix_task_comments_task_id"), table_name="task_comments")
     op.drop_table("task_comments")
 
@@ -142,9 +177,18 @@ def downgrade() -> None:
 
     op.drop_table("activities")
 
+    op.drop_constraint("fk_projects_team_id_teams", "projects", type_="foreignkey")
+    op.drop_index("ix_projects_team_id", table_name="projects")
     op.drop_index(op.f("ix_projects_name"), table_name="projects")
     op.drop_table("projects")
 
+    op.drop_constraint("fk_employees_team_id_teams", "employees", type_="foreignkey")
+    op.drop_index("ix_employees_team_id", table_name="employees")
+
+    op.drop_index("ix_teams_department_id", table_name="teams")
+    op.drop_index("ix_teams_name", table_name="teams")
+    op.drop_table("teams")
+
     op.drop_table("employees")
 
     op.drop_index(op.f("ix_departments_name"), table_name="departments")

backend/alembic/versions/3f2c1b9c8e12_add_teams_and_team_ownership.py

@@ -1,73 +0,0 @@
-"""Add teams and team ownership
-
-Revision ID: 3f2c1b9c8e12
-Revises: bacd5e6a253d
-Create Date: 2026-02-02
-
-"""
-
-from __future__ import annotations
-
-import sqlalchemy as sa
-
-from alembic import op
-
-# revision identifiers, used by Alembic.
-revision = "3f2c1b9c8e12"
-down_revision = "bacd5e6a253d"
-branch_labels = None
-depends_on = None
-
-
-def upgrade() -> None:
-    # 1) Teams
-    op.create_table(
-        "teams",
-        sa.Column("id", sa.Integer(), primary_key=True, nullable=False),
-        sa.Column("name", sa.String(), nullable=False),
-        sa.Column("department_id", sa.Integer(), nullable=False),
-        sa.Column("lead_employee_id", sa.Integer(), nullable=True),
-        sa.ForeignKeyConstraint(["department_id"], ["departments.id"], ondelete="CASCADE"),
-        sa.ForeignKeyConstraint(["lead_employee_id"], ["employees.id"], ondelete="SET NULL"),
-        sa.UniqueConstraint("department_id", "name", name="uq_teams_department_id_name"),
-    )
-    op.create_index("ix_teams_name", "teams", ["name"], unique=False)
-    op.create_index("ix_teams_department_id", "teams", ["department_id"], unique=False)
-
-    # 2) Employees belong to one (optional) team
-    op.add_column("employees", sa.Column("team_id", sa.Integer(), nullable=True))
-    op.create_index("ix_employees_team_id", "employees", ["team_id"], unique=False)
-    op.create_foreign_key(
-        "fk_employees_team_id_teams",
-        "employees",
-        "teams",
-        ["team_id"],
-        ["id"],
-        ondelete="SET NULL",
-    )
-
-    # 3) Projects are owned by teams (not departments)
-    op.add_column("projects", sa.Column("team_id", sa.Integer(), nullable=True))
-    op.create_index("ix_projects_team_id", "projects", ["team_id"], unique=False)
-    op.create_foreign_key(
-        "fk_projects_team_id_teams",
-        "projects",
-        "teams",
-        ["team_id"],
-        ["id"],
-        ondelete="SET NULL",
-    )
-
-
-def downgrade() -> None:
-    op.drop_constraint("fk_projects_team_id_teams", "projects", type_="foreignkey")
-    op.drop_index("ix_projects_team_id", table_name="projects")
-    op.drop_column("projects", "team_id")
-
-    op.drop_constraint("fk_employees_team_id_teams", "employees", type_="foreignkey")
-    op.drop_index("ix_employees_team_id", table_name="employees")
-    op.drop_column("employees", "team_id")
-
-    op.drop_index("ix_teams_department_id", table_name="teams")
-    op.drop_index("ix_teams_name", table_name="teams")
-    op.drop_table("teams")

backend/alembic/versions/7f4e2c1a9a10_ensure_human_employee_id_is_1.py

@@ -1,104 +0,0 @@
-"""Ensure human employee id is 1
-
-Revision ID: 7f4e2c1a9a10
-Revises: 3f2c1b9c8e12
-Create Date: 2026-02-02
-
-"""
-
-from __future__ import annotations
-
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = "7f4e2c1a9a10"
-down_revision = "3f2c1b9c8e12"
-branch_labels = None
-depends_on = None
-
-
-def upgrade() -> None:
-    """If the (single) human employee exists but is not id=1, move it to id=1.
-
-    This is a dev ergonomics migration: a bunch of code / examples assume the
-    primary human user is employee_id=1.
-
-    Safe behavior:
-    - Only runs when there is exactly one human employee.
-    - Only runs when employee id=1 is currently unused.
-    - Rewrites all known FKs that point at the old id.
-    """
-
-    conn = op.get_bind()
-
-    human_ids = [
-        row[0]
-        for row in conn.execute(sa.text("SELECT id FROM employees WHERE employee_type='human' ORDER BY id"))
-    ]
-
-    # Only attempt the rewrite in the "typical dev" scenario.
-    if len(human_ids) != 1:
-        return
-
-    old_id = int(human_ids[0])
-    if old_id == 1:
-        return
-
-    id1_exists = conn.execute(sa.text("SELECT 1 FROM employees WHERE id=1")).first() is not None
-    if id1_exists:
-        return
-
-    # Update foreign keys in known tables/columns.
-    conn.execute(
-        sa.text("UPDATE departments SET head_employee_id=1 WHERE head_employee_id=:old_id"),
-        {"old_id": old_id},
-    )
-    conn.execute(
-        sa.text("UPDATE teams SET lead_employee_id=1 WHERE lead_employee_id=:old_id"),
-        {"old_id": old_id},
-    )
-    conn.execute(
-        sa.text("UPDATE employees SET manager_id=1 WHERE manager_id=:old_id"),
-        {"old_id": old_id},
-    )
-    conn.execute(
-        sa.text("UPDATE activities SET actor_employee_id=1 WHERE actor_employee_id=:old_id"),
-        {"old_id": old_id},
-    )
-    conn.execute(
-        sa.text("UPDATE project_members SET employee_id=1 WHERE employee_id=:old_id"),
-        {"old_id": old_id},
-    )
-    conn.execute(
-        sa.text("UPDATE tasks SET assignee_employee_id=1 WHERE assignee_employee_id=:old_id"),
-        {"old_id": old_id},
-    )
-    conn.execute(
-        sa.text("UPDATE tasks SET reviewer_employee_id=1 WHERE reviewer_employee_id=:old_id"),
-        {"old_id": old_id},
-    )
-    conn.execute(
-        sa.text("UPDATE tasks SET created_by_employee_id=1 WHERE created_by_employee_id=:old_id"),
-        {"old_id": old_id},
-    )
-    conn.execute(
-        sa.text("UPDATE task_comments SET author_employee_id=1 WHERE author_employee_id=:old_id"),
-        {"old_id": old_id},
-    )
-
-    # Finally, rewrite the employee PK itself.
-    conn.execute(sa.text("UPDATE employees SET id=1 WHERE id=:old_id"), {"old_id": old_id})
-
-    # Keep the sequence in sync (Postgres).
-    conn.execute(
-        sa.text(
-            "SELECT setval(pg_get_serial_sequence('employees','id'), (SELECT COALESCE(MAX(id), 1) FROM employees), true)"
-        )
-    )
-
-
-def downgrade() -> None:
-    # Non-reversible in a safe way; this is a dev convenience migration.
-    pass