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Code Issues Projects Releases Packages Wiki Activity Actions 52

initial rewrite

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booo 2012-02-09 02:09:17 +01:00
parent e6e81135a7
commit c19444f6c9
12 changed files with 777 additions and 697 deletions
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118
node/db/AuthorManager.js
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@ -19,163 +19,167 @@
*/
var ERR = require("async-stacktrace");
var db = require("./DB").db;
var async = require("async");
var randomString = require("../utils/randomstring");
var AuthorManager = function AuthorManager(db) {
this.db = db;
};
exports.AuthorManager = AuthorManager;
/**
* Checks if the author exists
*/
exports.doesAuthorExists = function (authorID, callback)
AuthorManager.prototype.doesAuthorExists = function (authorID, callback)
{
//check if the database entry of this author exists
db.get("globalAuthor:" + authorID, function (err, author)
this.db.get("globalAuthor:" + authorID, function (err, author)
{
if(ERR(err, callback)) return;
callback(null, author != null);
});
}
};
/**
* Returns the AuthorID for a token.
* @param {String} token The token
* @param {Function} callback callback (err, author)
* Returns the AuthorID for a token.
* @param {String} token The token
* @param {Function} callback callback (err, author)
*/
exports.getAuthor4Token = function (token, callback)
AuthorManager.prototype.getAuthor4Token = function (token, callback)
{
mapAuthorWithDBKey("token2author", token, function(err, author)
this.mapAuthorWithDBKey("token2author", token, function(err, author)
{
if(ERR(err, callback)) return;
//return only the sub value authorID
callback(null, author ? author.authorID : author);
});
}
};
/**
* Returns the AuthorID for a mapper.
* Returns the AuthorID for a mapper.
* @param {String} token The mapper
* @param {Function} callback callback (err, author)
* @param {Function} callback callback (err, author)
*/
exports.createAuthorIfNotExistsFor = function (authorMapper, name, callback)
AuthorManager.prototype.createAuthorIfNotExistsFor = function (authorMapper, name, callback)
{
mapAuthorWithDBKey("mapper2author", authorMapper, function(err, author)
var that = this;
this.mapAuthorWithDBKey("mapper2author", authorMapper, function(err, author)
{
if(ERR(err, callback)) return;
//set the name of this author
if(name)
exports.setAuthorName(author.authorID, name);
that.setAuthorName(author.authorID, name);
//return the authorID
callback(null, author);
});
}
};
/**
* Returns the AuthorID for a mapper. We can map using a mapperkey,
* so far this is token2author and mapper2author
* @param {String} mapperkey The database key name for this mapper
* @param {String} mapperkey The database key name for this mapper
* @param {String} mapper The mapper
* @param {Function} callback callback (err, author)
* @param {Function} callback callback (err, author)
*/
function mapAuthorWithDBKey (mapperkey, mapper, callback)
{
AuthorManager.prototype.mapAuthorWithDBKey = function mapAuthorWithDBKey (mapperkey, mapper, callback) {
var that = this;
//try to map to an author
db.get(mapperkey + ":" + mapper, function (err, author)
this.db.get(mapperkey + ":" + mapper, function (err, author)
{
if(ERR(err, callback)) return;
//there is no author with this mapper, so create one
if(author == null)
{
exports.createAuthor(null, function(err, author)
{
that.createAuthor(null, function(err, author) {
if(ERR(err, callback)) return;
//create the token2author relation
db.set(mapperkey + ":" + mapper, author.authorID);
that.db.set(mapperkey + ":" + mapper, author.authorID);
//return the author
callback(null, author);
});
}
//there is a author with this mapper
else
{
else {
//update the timestamp of this author
db.setSub("globalAuthor:" + author, ["timestamp"], new Date().getTime());
that.db.setSub("globalAuthor:" + author, ["timestamp"], new Date().getTime());
//return the author
callback(null, {authorID: author});
}
});
}
};
/**
* Internal function that creates the database entry for an author
* @param {String} name The name of the author
* Internal function that creates the database entry for an author
* @param {String} name The name of the author
*/
exports.createAuthor = function(name, callback)
AuthorManager.prototype.createAuthor = function(name, callback)
{
//create the new author name
var author = "a." + randomString(16);
//create the globalAuthors db entry
var authorObj = {"colorId" : Math.floor(Math.random()*32), "name": name, "timestamp": new Date().getTime()};
//set the global author db entry
db.set("globalAuthor:" + author, authorObj);
this.db.set("globalAuthor:" + author, authorObj);
callback(null, {authorID: author});
}
};
/**
* Returns the Author Obj of the author
* @param {String} author The id of the author
* @param {Function} callback callback(err, authorObj)
*/
exports.getAuthor = function (author, callback)
AuthorManager.prototype.getAuthor = function (author, callback)
{
db.get("globalAuthor:" + author, callback);
}
this.db.get("globalAuthor:" + author, callback);
};
/**
* Returns the color Id of the author
* @param {String} author The id of the author
* @param {Function} callback callback(err, colorId)
*/
exports.getAuthorColorId = function (author, callback)
AuthorManager.prototype.getAuthorColorId = function (author, callback)
{
db.getSub("globalAuthor:" + author, ["colorId"], callback);
}
this.db.getSub("globalAuthor:" + author, ["colorId"], callback);
};
/**
* Sets the color Id of the author
* @param {String} author The id of the author
* @param {Function} callback (optional)
*/
exports.setAuthorColorId = function (author, colorId, callback)
AuthorManager.prototype.setAuthorColorId = function (author, colorId, callback)
{
db.setSub("globalAuthor:" + author, ["colorId"], colorId, callback);
}
this.db.setSub("globalAuthor:" + author, ["colorId"], colorId, callback);
};
/**
* Returns the name of the author
* @param {String} author The id of the author
* @param {Function} callback callback(err, name)
*/
exports.getAuthorName = function (author, callback)
AuthorManager.prototype.getAuthorName = function (author, callback)
{
db.getSub("globalAuthor:" + author, ["name"], callback);
}
this.db.getSub("globalAuthor:" + author, ["name"], callback);
};
/**
* Sets the name of the author
* @param {String} author The id of the author
* @param {Function} callback (optional)
*/
exports.setAuthorName = function (author, name, callback)
AuthorManager.prototype.setAuthorName = function (author, name, callback)
{
db.setSub("globalAuthor:" + author, ["name"], name, callback);
}
this.db.setSub("globalAuthor:" + author, ["name"], name, callback);
};