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terra-view/backend/migrate_add_oneoff_schedule_fields.py

74 lines
2.0 KiB
Python

"""
Migration: Add one-off schedule fields to recurring_schedules table
Adds start_datetime and end_datetime columns for one-off recording schedules.
Run this script once to update existing databases:
python -m backend.migrate_add_oneoff_schedule_fields
"""
import sqlite3
import os
DB_PATH = "data/seismo_fleet.db"
def migrate():
"""Add one-off schedule columns to recurring_schedules table."""
if not os.path.exists(DB_PATH):
print(f"Database not found at {DB_PATH}")
return False
conn = sqlite3.connect(DB_PATH)
cursor = conn.cursor()
try:
cursor.execute("""
SELECT name FROM sqlite_master
WHERE type='table' AND name='recurring_schedules'
""")
if not cursor.fetchone():
print("recurring_schedules table does not exist yet. Will be created on app startup.")
conn.close()
return True
cursor.execute("PRAGMA table_info(recurring_schedules)")
columns = [row[1] for row in cursor.fetchall()]
added = False
if "start_datetime" not in columns:
print("Adding start_datetime column to recurring_schedules table...")
cursor.execute("""
ALTER TABLE recurring_schedules
ADD COLUMN start_datetime DATETIME NULL
""")
added = True
if "end_datetime" not in columns:
print("Adding end_datetime column to recurring_schedules table...")
cursor.execute("""
ALTER TABLE recurring_schedules
ADD COLUMN end_datetime DATETIME NULL
""")
added = True
if added:
conn.commit()
print("Successfully added one-off schedule columns.")
else:
print("One-off schedule columns already exist.")
conn.close()
return True
except Exception as e:
print(f"Migration failed: {e}")
conn.close()
return False
if __name__ == "__main__":
success = migrate()
exit(0 if success else 1)