From 0b9bc2a7a74fe887f5d3575aea70e36b51df43c7 Mon Sep 17 00:00:00 2001
From: Kegan Dougal <kegan@matrix.org>
Date: Fri, 10 Feb 2017 16:51:55 +0000
Subject: [PATCH] Remove old (de)serialize stuff. Inline more things

---
 src/models/user.js     | 22 --------------
 src/store/indexeddb.js | 67 +++++++++++++++++++++---------------------
 2 files changed, 34 insertions(+), 55 deletions(-)

diff --git a/src/models/user.js b/src/models/user.js
index c1cf37fda..dbfaeb791 100644
--- a/src/models/user.js
+++ b/src/models/user.js
@@ -19,7 +19,6 @@ limitations under the License.
  */
  const EventEmitter = require("events").EventEmitter;
  const utils = require("../utils");
- const MatrixEvent = require("./event").MatrixEvent;
 
 /**
  * Construct a new User. A User must have an ID and can optionally have extra
@@ -61,27 +60,6 @@ function User(userId) {
 }
 utils.inherits(User, EventEmitter);
 
-/**
- * Deserialize this user from a JSON object.
- * @static
- * @param {Object} obj The User object from User.serialize().
- * @return {User} A user
- */
-User.deserialize = function(obj) {
-    const user = new User(obj.userId);
-    if (obj.event) {
-        user.setPresenceEvent(new MatrixEvent(obj.event));
-    }
-    return user;
-};
-
-User.prototype.serialize = function() {
-    return {
-        userId: this.userId,
-        event: (this.events.presence ? this.events.presence.event : null),
-    };
-};
-
 /**
  * Update this User with the given presence event. May fire "User.presence",
  * "User.avatarUrl" and/or "User.displayName" if this event updates this user's
diff --git a/src/store/indexeddb.js b/src/store/indexeddb.js
index edaff6c10..25f032274 100644
--- a/src/store/indexeddb.js
+++ b/src/store/indexeddb.js
@@ -89,13 +89,17 @@ IndexedDBStoreBackend.prototype = {
      * @return {Promise} Resolves if the data was persisted.
      */
     persistSyncData: function(nextBatch, roomsData) {
-        const obj = {
-            clobber: "-", // constant key so will always clobber
-            nextBatch: nextBatch,
-            roomsData: roomsData,
-        };
         console.log("persisting sync data");
-        return this._upsert("sync", [obj]);
+        return q.try(() => {
+            const txn = this.db.transaction(["sync"], "readwrite");
+            const store = txn.objectStore("sync");
+            store.put({
+                clobber: "-", // constant key so will always clobber
+                nextBatch: nextBatch,
+                roomsData: roomsData,
+            }); // put == UPSERT
+            return promiseifyTxn(txn);
+        });
     },
 
     /**
@@ -122,7 +126,19 @@ IndexedDBStoreBackend.prototype = {
      * @return {Promise} Resolves if the users were persisted.
      */
     persistUsers: function(users) {
-        return this._upsert("users", users);
+        return q.try(() => {
+            const txn = this.db.transaction(["users"], "readwrite");
+            const store = txn.objectStore("users");
+            for (let i = 0; i < users.length; i++) {
+                store.put({
+                    userId: users[i].userId,
+                    event: (users[i].events.presence ?
+                                users[i].events.presence.event :
+                                null),
+                }); // put == UPSERT
+            }
+            return promiseifyTxn(txn);
+        });
     },
 
     /**
@@ -130,7 +146,17 @@ IndexedDBStoreBackend.prototype = {
      * @return {Promise<User[]>} A list of users.
      */
     loadUsers: function() {
-        return this._deserializeAll("users", User);
+        return q.try(() => {
+            const txn = this.db.transaction(["users"], "readonly");
+            const store = txn.objectStore("users");
+            return selectQuery(store, undefined, (cursor) => {
+                const user = new User(cursor.value.userId);
+                if (cursor.value.event) {
+                    user.setPresenceEvent(new MatrixEvent(cursor.value.event));
+                }
+                return user;
+            });
+        });
     },
 
     /**
@@ -165,31 +191,6 @@ IndexedDBStoreBackend.prototype = {
             });
         });
     },
-
-    _upsert: function(storeName, rows) {
-        return q.try(() => {
-            const txn = this.db.transaction([storeName], "readwrite");
-            const store = txn.objectStore(storeName);
-            for (let i = 0; i < rows.length; i++) {
-                if (typeof rows[i].serialize === "function") {
-                    store.put(rows[i].serialize()); // put == UPSERT
-                } else {
-                    store.put(rows[i]); // put == UPSERT
-                }
-            }
-            return promiseifyTxn(txn);
-        });
-    },
-
-    _deserializeAll: function(storeName, Cls) {
-        return q.try(() => {
-            const txn = this.db.transaction([storeName], "readonly");
-            const store = txn.objectStore(storeName);
-            return selectQuery(store, undefined, (cursor) => {
-                return Cls.deserialize(cursor.value);
-            });
-        });
-    },
 };
 
 /**