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react-code-dataset / spectrum /api /migrations /20170613200350-notifications.js
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exports.up = function(r, conn) {
return (
// Create new tables, update old ones with receiveNotifications
Promise.all([
r
.table('usersChannels')
.filter({ isBlocked: false })
.update({ receiveNotifications: true })
.run(conn)
.catch(err => {
console.log(err);
throw err;
}),
r
.table('usersCommunities')
.filter({ isBlocked: false })
.update({ receiveNotifications: true })
.run(conn)
.catch(err => {
console.log(err);
throw err;
}),
r
.tableCreate('notifications')
.run(conn)
.catch(err => {
console.log(err);
throw err;
}),
r
.tableCreate('usersThreads')
.run(conn)
.catch(err => {
console.log(err);
throw err;
}),
r
.tableCreate('usersNotifications')
.run(conn)
.catch(err => {
console.log(err);
throw err;
}),
])
// Add secondary indexes to new tables
.then(() =>
Promise.all([
r
.table('notifications')
.indexCreate('modifiedAt', r.row('modifiedAt'))
.run(conn)
.catch(err => {
console.log(err);
throw err;
}),
r
.table('usersThreads')
.indexCreate('userId')
.run(conn)
.catch(err => {
console.log(err);
throw err;
}),
r
.table('usersThreads')
.indexCreate('threadId')
.run(conn)
.catch(err => {
console.log(err);
throw err;
}),
r
.table('usersNotifications')
.indexCreate('userId')
.run(conn)
.catch(err => {
console.log(err);
throw err;
}),
r
.table('notifications')
.indexCreate('contextId', r.row('context')('id'))
.run(conn)
.catch(err => {
console.log(err);
throw err;
}),
r
.table('usersNotifications')
.indexCreate('notificationId', r.row('notificationId'))
.run(conn)
.catch(err => {
console.log(err);
throw err;
}),
])
)
// Insert data into new tables that should be there
.then(() =>
Promise.all([
// Thread creators -> usersThreads
r
.table('threads')
.filter(r.row.hasFields('deletedAt').not())
.run(conn)
.then(cursor => cursor.toArray())
.then(threads =>
Promise.all(
threads.map(thread =>
r
.table('usersThreads')
.insert({
createdAt: r.now(),
isParticipant: true,
receiveNotifications: true,
threadId: thread.id,
userId: thread.creatorId,
})
.run(conn)
.catch(err => {
console.log(err);
throw err;
})
)
)
)
.catch(err => {
console.log(err);
throw err;
}),
// Thread participants -> usersThreads
r
.table('threads')
.filter(r.row.hasFields('deletedAt').not())
.run(conn)
.catch(err => {
console.log(err);
throw err;
})
.then(cursor => cursor.toArray())
.then(threads =>
Promise.all(
threads.map(thread => {
return Promise.all([
r
.table('messages')
.filter({ threadId: thread.id })
.map(message => message('senderId'))
.run(conn)
.then(cursor => cursor.toArray())
.catch(err => {
console.log(err);
throw err;
}),
thread,
]);
})
)
)
.then(threadsMessages =>
Promise.all(
threadsMessages.map(([threadSenders, thread]) => {
if (!threadSenders) return Promise.resolve();
let uniqueThreadSenders = threadSenders.filter(
(item, i, ar) => ar.indexOf(item) === i
);
return Promise.all(
uniqueThreadSenders.map(sender => {
return r
.table('usersThreads')
.insert({
createdAt: r.now(),
isParticipant: true,
receiveNotifications: true,
threadId: thread.id,
userId: sender,
})
.run(conn)
.catch(err => {
console.log(err);
throw err;
});
})
);
})
)
),
])
)
.catch(err => {
console.log(err);
throw err;
})
);
};
exports.down = function(r, conn) {
return Promise.all([
r.tableDrop('usersThreads').run(conn),
r.tableDrop('usersNotifications').run(conn),
r.tableDrop('notifications').run(conn),
r
.table('usersCommunities')
.update({ receiveNotifications: r.literal() })
.run(conn),
r
.table('usersCommunities')
.update({ receiveNotifications: r.literal() })
.run(conn),
]);
};