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restructuring save/load process of a pad, this makes it easier to extend the meta data of a pad

This commit is contained in:
Peter 'Pita' Martischka 2012-02-29 11:56:31 -05:00 committed by John McLear
parent f631e1e8ab
commit aaad7d1428
1 changed files with 38 additions and 35 deletions
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73
node/db/Pad.js
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@ -15,6 +15,10 @@ var readOnlyManager = require("./ReadOnlyManager");
var crypto = require("crypto");
var randomString = require("../utils/randomstring");
//serialization/deserialization attributes
var attributeBlackList = ["id"];
var jsonableList = ["pool"];
/**
* Copied from the Etherpad source code. It converts Windows line breaks to Unix line breaks and convert Tabs to spaces
* @param txt
@ -74,15 +78,28 @@ Pad.prototype.appendRevision = function appendRevision(aChangeset, author) {
newRevData.meta.atext = this.atext;
}
db.set("pad:"+this.id+":revs:"+newRev, newRevData);
db.set("pad:"+this.id, {atext: this.atext,
pool: this.pool.toJsonable(),
head: this.head,
chatHead: this.chatHead,
publicStatus: this.publicStatus,
passwordHash: this.passwordHash});
db.set("pad:"+this.id+":revs:"+newRev, newRevData);
this.saveToDatabase();
};
//save all attributes to the database
Pad.prototype.saveToDatabase = function saveToDatabase(){
var dbObject = {};
for(var attr in this){
if(typeof this[attr] === "function") continue;
if(attributeBlackList.indexOf(attr) !== -1) continue;
dbObject[attr] = this[attr];
if(jsonableList.indexOf(attr) !== -1){
dbObject[attr] = dbObject[attr].toJsonable();
}
}
db.set("pad:"+this.id, dbObject);
}
Pad.prototype.getRevisionChangeset = function getRevisionChangeset(revNum, callback) {
db.getSub("pad:"+this.id+":revs:"+revNum, ["changeset"], callback);
};
@ -199,11 +216,10 @@ Pad.prototype.setText = function setText(newText) {
};
Pad.prototype.appendChatMessage = function appendChatMessage(text, userId, time) {
this.chatHead++;
//save the chat entry in the database
db.set("pad:"+this.id+":chat:"+this.chatHead, {"text": text, "userId": userId, "time": time});
//save the new chat head
db.setSub("pad:"+this.id, ["chatHead"], this.chatHead);
this.chatHead++;
//save the chat entry in the database
db.set("pad:"+this.id+":chat:"+this.chatHead, {"text": text, "userId": userId, "time": time});
this.saveToDatabase();
};
Pad.prototype.getChatMessage = function getChatMessage(entryNum, callback) {
@ -323,27 +339,14 @@ Pad.prototype.init = function init(text, callback) {
//if this pad exists, load it
if(value != null)
{
_this.head = value.head;
_this.atext = value.atext;
_this.pool = _this.pool.fromJsonable(value.pool);
//ensure we have a local chatHead variable
if(value.chatHead != null)
_this.chatHead = value.chatHead;
else
_this.chatHead = -1;
//ensure we have a local publicStatus variable
if(value.publicStatus != null)
_this.publicStatus = value.publicStatus;
else
_this.publicStatus = false;
//ensure we have a local passwordHash variable
if(value.passwordHash != null)
_this.passwordHash = value.passwordHash;
else
_this.passwordHash = null;
//copy all attr. To a transfrom via fromJsonable if necassary
for(var attr in value){
if(jsonableList.indexOf(attr) !== -1){
_this[attr] = _this[attr].fromJsonable(value[attr]);
} else {
_this[attr] = value[attr];
}
}
}
//this pad doesn't exist, so create it
else
@ -451,12 +454,12 @@ Pad.prototype.remove = function remove(callback) {
//set in db
Pad.prototype.setPublicStatus = function setPublicStatus(publicStatus) {
this.publicStatus = publicStatus;
db.setSub("pad:"+this.id, ["publicStatus"], this.publicStatus);
this.saveToDatabase();
};
Pad.prototype.setPassword = function setPassword(password) {
this.passwordHash = password == null ? null : hash(password, generateSalt());
db.setSub("pad:"+this.id, ["passwordHash"], this.passwordHash);
this.saveToDatabase();
};
Pad.prototype.isCorrectPassword = function isCorrectPassword(password) {