迁移Simple-TODO Nodejs实现版至CouchDB数据库 --- 用户认证

exports.username = 'username';
exports.password = 'password';

"use strict";

/**
* Module dependencies.
*/

var cradle = require('cradle');
var config = require('../config');

var connection = new(cradle.Connection)(config.db_port, config.db_port, {
cache: true,
raw: false,
auth:{username: config.username, password: config.password}
});
var db = connection.database(config.db_name);
db.exists(function (err, exists) {
if (err) {
console.log('error', err);
} else if (exists) {
console.log('database exists, please enjoy.');
} else {
console.log('database does not exist, create a new one.');
db.create(function() {
db.save('_design/todo', {
views: {
all: {
map: 'function (doc) { emit(doc._id, doc) }'
}
}
});
db.exists(function(errr, existss) {
if(!existss) {
console.log("数据库创建失败，请检查是否使用有效的认证账号");
return ("数据库创建失败，请检查是否使用有效的认证账号");
}
else {
console.log("created.");
}
});
});
}
});
module.exports = db;

"use strict";

/**
* Module dependencies.
*/

var config = require('../config');
var db = require('../common/db');

exports.index = function (req, res, next) {
db.view('todo/all', function (err, result) {
if (err) {
if(err.reason == "no_db_file") {
return next("No database exists on your server.");
}
return next(err.reason);
}
var data = new Array();
result.forEach(function (row) {
data.push(row);
});
res.render('index.html', {todos: data});
});
};

exports.new = function (req, res, next) {
var title = req.body.title || '';
title = title.trim();
if (!title) {
return res.render('error.html', {message: '标题是必须的'});
}
db.save({title: title, post_date: new Date()}, function (err, result) {
if (err) {
return next(err);
}
res.redirect('/');
});
};

exports.view = function (req, res, next) {
res.redirect('/');
};

exports.edit = function (req, res, next) {
var id = req.params.id;
db.get(id, function (err, doc) {
if (err) {
return next(err);
}
if (!doc) {
return next();
}
res.render('todo/edit.html', {todo: doc});
});
};

exports.save = function (req, res, next) {
var id = req.params.id;
var title = req.body.title || '';
title = title.trim();
if (!title) {
return res.render('error.html', {message: '标题是必须的'});
}
db.merge(id, {title: title}, function (err, result) {
if (err) {
return next(err);
}
res.redirect('/');
});
};

exports.delete = function (req, res, next) {
var id = req.params.id;
db.get(id, function (err, doc) {
var rev = doc._rev;
db.remove(id, rev, function (err, result) {
if (err) {
return next(err);
}
res.redirect('/');
});
});
};

exports.finish = function (req, res, next) {
var finished = req.query.status === 'yes' ? 1 : 0;
var id = req.params.id;
db.merge(id, {finished: finished}, function (err, result) {
if (err) {
return next(err);
}
res.redirect('/');
});
};