Add Column
Current Schema
CREATE TABLE availability (
id INTEGER PRIMARY KEY AUTOINCREMENT,
trainer_id INTEGER NOT NULL REFERENCES trainers(id) ON DELETE CASCADE,
weekday INTEGER NOT NULL,
-- 0=So,
1=Mo,
...,
6=Sa
start_time TEXT NOT NULL,
-- 'HH:MM'
end_time TEXT NOT NULL,
recurring INTEGER NOT NULL DEFAULT 1 -- 1 = wiederkehrend,
0 = einmaliges Sonderfenster,
year_week TEXT NULL
)