+ // All challenges except where target is defined and not me,
+ // and I'm not the sender.
+ getByUser: function(uid, cb)
+ {
+ db.serialize(function() {
+ const query =
+ "SELECT * " +
+ "FROM Challenges " +
+ "WHERE target IS NULL" +
+ " OR uid = " + uid +
+ " OR target = " + uid;
+ db.all(query, (err,challenges) => {
+ return cb(err, challenges);
+ });
+ });
+ },
+
+ remove: function(id)
+ {
+ db.serialize(function() {
+ const query =
+ "DELETE FROM Challenges " +
+ "WHERE id = " + id;
+ db.run(query);
+ });
+ },
+
+ safeRemove: function(id, uid, cb)
+ {
+ db.serialize(function() {
+ const query =
+ "SELECT 1 " +
+ "FROM Challenges " +
+ "WHERE id = " + id + " AND uid = " + uid;
+ db.get(query, (err,chall) => {
+ if (!chall)
+ return cb({errmsg: "Not your challenge"});
+ ChallengeModel.remove(id);
+ cb(null);
+ });
+ });
+ },
+
+ // Remove challenges older than 1 month, and 1to1 older than 2 days
+ removeOld: function()
+ {
+ const tsNow = Date.now();
+ // 86400000 = 24 hours in milliseconds
+ const day = 86400000;
+ db.serialize(function() {
+ const query =
+ "SELECT id, target, added " +
+ "FROM Challenges";
+ db.all(query, (err, challenges) => {
+ challenges.forEach(c => {
+ if ((!c.target && tsNow - c.added > 30*day) ||
+ (!!c.target && tsNow - c.added > 2*day))
+ {
+ db.run("DELETE FROM Challenges WHERE id = " + c.id);
+ }
+ });
+ });
+ });
+ },