Make migration scripts

and use createdAt instead of _id

src/models/followed-log.ts

@@ -6,6 +6,7 @@ export default FollowedLog;
 
 export type IFollowedLog = {
 	_id: ObjectID;
+	createdAt: Date;
 	userId: ObjectID;
 	count: number;
 };

src/models/following-log.ts

@@ -6,6 +6,7 @@ export default FollowingLog;
 
 export type IFollowingLog = {
 	_id: ObjectID;
+	createdAt: Date;
 	userId: ObjectID;
 	count: number;
 };

src/processor/http/follow.ts

@@ -24,6 +24,7 @@ export default ({ data }, done) => Following.findOne({ _id: data.following }).th
 		}),
 
 		promisedFollower.then(({ followingCount }) => FollowingLog.insert({
+			createdAt: data.following.createdAt,
 			userId: followerId,
 			count: followingCount + 1
 		})),
@@ -36,6 +37,7 @@ export default ({ data }, done) => Following.findOne({ _id: data.following }).th
 		}),
 
 		promisedFollowee.then(({ followersCount }) => FollowedLog.insert({
+			createdAt: data.following.createdAt,
 			userId: followerId,
 			count: followersCount + 1
 		})),

src/server/api/endpoints/aggregation/users/followers.ts

@@ -42,10 +42,10 @@ module.exports = (params) => new Promise(async (res, rej) => {
 
 	for (let i = 0; i < 30; i++) {
 		graph.push(FollowedLog.findOne({
-			_id: { $lt: ObjectID.createFromTime(cursorTime / 1000) },
+			createdAt: { $lt: new Date(cursorTime / 1000) },
 			userId: user._id
 		}, {
-			sort: { _id: -1 },
+			sort: { createdAt: -1 },
 		}).then(log => {
 			cursorDate = new Date(today.getTime());
 			cursorTime = cursorDate.setDate(today.getDate() - i);

src/server/api/endpoints/aggregation/users/following.ts

@@ -42,10 +42,10 @@ module.exports = (params) => new Promise(async (res, rej) => {
 
 	for (let i = 0; i < 30; i++) {
 		graph.push(FollowingLog.findOne({
-			_id: { $lt: ObjectID.createFromTime(cursorTime / 1000) },
+			createdAt: { $lt: new Date(cursorTime / 1000) },
 			userId: user._id
 		}, {
-			sort: { _id: -1 },
+			sort: { createdAt: -1 },
 		}).then(log => {
 			cursorDate = new Date(today.getTime());
 			cursorTime = cursorDate.setDate(today.getDate() - i);