05/25 Update inspectors contract assignment

2026-05-25 13:58:37 -04:00
parent e703675370
commit 688308fca2
13 changed files with 463 additions and 79 deletions
@@ -0,0 +1,47 @@
+"""phase20 — inspector contract assignments
+
+Adds inspector_assignments table so each inspector can be scoped to one or
+more contracts (projects).  Inspectors with no assignments see nothing.
+
+Safe to re-run — uses INFORMATION_SCHEMA existence check.
+"""
+
+import sqlalchemy as sa
+from alembic import op
+
+revision      = 'phase20_inspector_assignments'
+down_revision = 'phase19_issue_mobile_photos'
+branch_labels = None
+depends_on    = None
+
+
+def _table_exists(bind, table):
+    result = bind.execute(sa.text(
+        "SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLES "
+        "WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = :t"
+    ), {"t": table})
+    return result.scalar() > 0
+
+
+def upgrade():
+    bind = op.get_bind()
+    if not _table_exists(bind, 'inspector_assignments'):
+        op.create_table(
+            'inspector_assignments',
+            sa.Column('id',         sa.Integer(),  nullable=False, autoincrement=True),
+            sa.Column('user_id',    sa.Integer(),  nullable=False),
+            sa.Column('project_id', sa.Integer(),  nullable=False),
+            sa.Column('created_at', sa.DateTime(), nullable=False),
+            sa.PrimaryKeyConstraint('id'),
+            sa.ForeignKeyConstraint(['user_id'],    ['users.id'],    ondelete='CASCADE'),
+            sa.ForeignKeyConstraint(['project_id'], ['projects.id'], ondelete='CASCADE'),
+            sa.UniqueConstraint('user_id', 'project_id', name='uq_inspector_project'),
+        )
+        op.create_index('ix_inspector_assignments_user_id',
+                        'inspector_assignments', ['user_id'])
+
+
+def downgrade():
+    bind = op.get_bind()
+    if _table_exists(bind, 'inspector_assignments'):
+        op.drop_table('inspector_assignments')