mongoose - npm Package Compare versions

Comparing version 0.0.5 to 1.0.0

package.json

@@ -1,12 +0,12 @@
-{ "name": "mongoose"
-, "description":  "ORM for MongoDB"
-, "version":  "0.0.5"
-, "author": "LearnBoost <[e-mail]>"
-, "dependencies": { "mongodb": "0.7.9"}
-, "keywords": [ "mongoose", "mongo", "mongodb", "orm", "nosql" ]
-, "directories":  { "lib": "./lib" }
-, "scripts": { "test": "make test" }
-, "engines": { "node": ">= 0.1.101" }
-, "main": "./mongoose"
-, "licenses": [ { "type": "The MIT License", "url": "http://www.opensource.org/licenses/mit-license.php" } ]
+{
+    "name": "mongoose"
+  , "description": "Mongoose MongoDB ORM"
+  , "version": "1.0.0"
+  , "author": "Guillermo Rauch <[e-mail]>"
+  , "keywords": ["mongodb", "mongoose", "orm", "data", "datastore", "nosql"]
+  , "dependencies": {}
+  , "directories": { "lib": "./lib/mongoose" }
+  , "scripts": { "test": "make test" }
+  , "main": "./index.js"
+  , "engines": { "node": ">= 0.2.0" }
 }

README.md

@@ -1,397 +0,249 @@
-Mongoose: MongoDB ODM/ORM
-=========================
+Mongoose 1.0
+============
 
-The goal of Mongoose is to provide an extremely simple interface for MongoDB. 
+## What's Mongoose?
 
-## Features
+Mongoose is a MongoDB object modeling tool designed to work in an asychronous
+environment.
 
-- Reduces the burden of dealing with nested callback from async operations.
-- Provides a simple yet rich API.
-- Ability to model your data with custom interfaces.
-- Allows for complex business logic in an async way (see `Promises`).
+Defining a model is as easy as:
 
-## Installation
+    var Comments = new Schema({
+        title     : String
+      , body      : String
+      , date      : Date
+    });
 
-### As a submodule of your project (recommended)
+    var BlogPost = new Schema({
+        author    : ObjectId
+      , title     : String
+      , body      : String
+      , date      : Date
+      , comments  : [Comments]
+      , meta      : {
+            votes : Number
+          , favs  : Number
+        }
+    });
 
-  git submodule add git://github.com/LearnBoost/mongoose.git {path/to/mongoose}
-  git submodule update --init --recursive
-  
-Example paths: `support/mongoose`, `vendor/mongoose`.
-  
-### Cloning the repository (mainly for making changes to mongoose)
-  
-  git clone git://github.com/LearnBoost/mongoose.git --recursive
-  cd mongoose
-  
-### With npm
+    mongoose.model('BlogPost', BlogPost);
 
-  npm install http://github.com/learnboost/mongoose/tree/0.0.2
-  
-### With Kiwi
+## Connecting to MongoDB
 
-  kiwi install mongoose
-  
-## How to use
+First, we need to define a connection. If your app uses only one database, you
+should use `mongose.connect`. If you need to create additional connections, use
+`mongoose.createConnection`.
 
-### Setup
+Both `connect` and `createConnection` take a `mongodb://` URI, or the parameters
+`host, database, port`.
 
-Simply require Mongoose:
+    var mongoose = require('mongoose');
 
-    require.paths.unshift('vendor/mongoose');
-    var mongoose = require('mongoose').Mongoose;
+    mongoose.connect('mongodb://localhost/my_database');
 
-### Defining a model
+Once connected, the `open` event is fired on the `Connection` instance. If
+you're using `mongoose.connect`, the `Connection` is `mongoose.connection`.
+Otherwise, `mongoose.createConnection` return value is a `Connection`.
 
-    mongoose.model('User', {
-        
-        properties: ['first', 'last', 'age', 'updated_at'],
-        
-        cast: {
-          age: Number,
-          'nested.path': String
-        },
-        
-        indexes: ['first'],
-        
-        setters: {
-            first: function(v){
-                return this.v.capitalize();
-            }
-        },
-        
-        getters: {
-            full_name: function(){ 
-                return this.first + ' ' + this.last 
-            }
-        },
-        
-        methods: {
-            save: function(fn){
-                this.updated_at = new Date();
-                this.__super__(fn);
-            }
-        },
-        
-        static: {
-            findOldPeople: function(){
-                return this.find({age: { '$gt': 70 }});
-            }
-        }
-        
-    });
-    
-### Getting a model
+**Important!** Mongoose buffers all the commands until it's connected to the
+database. This means that you don't have to wait until it connects to MongoDB
+in order to define models, run queries, etc.
 
-Models are pseudo-classes that depend on an active connection. To connect:
+## Defining a Model
 
-    var db = mongoose.connect('mongodb://localhost/db');
-    
-To get a model:
-    
-    var User = db.model('User');
-    
-To create a new instance (document)
+Models are defined through the `Schema` interface. 
 
-    var u = new User();
-    u.name = 'John';
-    u.save(function(){
-        sys.puts('Saved!');
-    });
-    
-To fetch some stuff
+    var Schema = mongoose.Schema
+      , ObjectId = Schema.ObjectId;
 
-    User.find({ name: 'john' }).all(function(array){
-        
+    var BlogPost = new Schema({
+        author    : ObjectId
+      , title     : String
+      , body      : String
+      , date      : Date
     });
 
-### Operating on embedded objects
+Aside from defining the structure of your documents and the types of data you're
+storing, a Schema handles the definition of:
 
-Embedded objects are hydrated like model instances. Assume a MongoDB document like this stored in a variable `user`
+* Validators (async and sync)
+* Defaults
+* Getters
+* Setters
+* Indexes
+* Middleware
+* Methods definition
+* Statics definition
+* Plugins
 
-    {
-        name: 'John',
-        blogposts: [
-            {
-                title: 'Hi',
-                body: 'Hi there'
-            }
-        ]
-    }
-    
-To add a blogpost:
+The following example shows some of these features:
 
-    user.blogposts.push({ title: 'New post', body: 'The body' });
-    user.save();
+    var Comment = new Schema({
+        name  :  { type: String, default: 'hahaha' }
+      , age   :  { type: Number, min: 18, index: true }
+      , bio   :  { type: String, match: /[a-z]/ }
+      , date  :  { type: Date, default: Date.now }
+    });
 
-To remove an existing one:
+    // a setter
+    Comment.path('name').set(function (v) {
+      return v.capitalize();
+    });
 
-    user.blogposts[0] = null;
-    user.save();
+    // middleware
+    Comment.pre('save', function (next) {
+        notify(this.get('email'));
+        next();
+    });
 
-## API
+Take a look at the example in `examples/schema.js` for an end-to-end example of
+(almost) all the functionality available.
 
-### mongoose
+## Accessing a Model
 
-#### Methods
-    
-- **model(name, definition)**
-    
-    - *definition* determines how the class will be constructed. It's composed of the following keys. All of them are optional:
-        
-        - *collection*
-        
-            Optionally, the MongoDB collection name. Defaults to the model name in lowercase and plural. Does not need to be created in advance.
-        
-        - *properties*
-        
-            Defines the properties for how you structure the model.
-        
-            To define simple keys:
-        
-                properties: [ 'name', 'last' ]
-        
-            To define arrays:
-        
-                properties: [ 'name', {'tags': []} ]
-        
-            To define nested objects:
-            
-                properties: [ 'name', {contact: ['email', 'phone', ...]} ]
-                
-            To define array of embedded objects:
-            
-              properties: [ 'name', {blogposts: [['title', 'body', ...]]} ]
-        
-            `_id` is added automatically for all models.
-        
-        - *getters*
-        
-            Defines getters (can be nested). If the getter matches an existing property, the existing value will be passed as the first argument.
-        
-        - *setters*
-        
-            Defines setters (can be nested). If the setter matches an existing property, the return value will be set.
-        
-        - *cast*
-        
-            Defines type casting. By default, all properties beginning with `_` are cast to `ObjectID`. (note: Casting an Array will cast all items in the Array. Currently, Arrays cast when 'save' is called.)
-        
-        - *indexes*
-        
-            An array of indexes.
-            
-            Simple indexes: ['name', 'last']
-            
-            Compound indexes: [{ name: 1, last: 1 }, ...]
-            
-            Indexes with options: ['simple', [{ name: 1 }, {unique: true}]]
-            
-            Notice that the objects that you pass are equivalent to those that you would pass to ensureIndex in MongoDB.
-        
-        - *methods*
-        
-            Methods that are added to the prototype of the model, or methods that override existing ones. For example `save` (you can call `__super__` to access the parent)
-        
-        - *static*
-        
-            Static methods that are not instance-dependent (eg: `findByAge()`)
-        
-### Model
+Once we define a model through `mongoose.model('ModelName', mySchema)`, we can
+access it through the same function
 
-These are methods and properties that all *model instances* already include:
+    var myModel = mongoose.model('ModelName');
 
-#### Properties
+We can then instantiate it, and save it:
 
-- **isNew**
-    
-    Whether the instance exists as a document or the db (*false*), or hasn't been saved down before (*true*)
+    var instance = new myModel();
+    myModel.my.key = 'hello';
+    myModel.save(function (err) {
+      //
+    });
 
-#### Methods
+Or we can find documents from the same collection
 
-Note: if you override any of these by including them in the `methods` object of the model definition, the method is inherited and you can call __super__ to access the parent.
+    myModel.find({}, function (err, docs) {
+      // docs.forEach
+    });
 
-- **save(fn)**
-    
-    Saves down the document and fires the callback.
-    
-- **remove(fn)**
-    
-    Removes the document and fires the callback.
-    
-### Model (static)
+You can also `findOne`, `findById`, `update`, etc. For more details check out
+the API docs.
 
-These are the methods that can be accessed statically, and affect the collection as a whole.
+## Embedded Documents
 
-- **find(props, subset, hydrate)**
+In the first example snippet, we defined a key in the Schema that looks like:
 
-    Returns an instance of QueryWriter
+    comments: [Comments]
 
-    - *props*
-    
-        Optional, calls the QueryWriter `where` on each key/value. `find({username: 'john'})` is equivalent to:
-            
-            model.find().where('username', 'john');
-        
-    - *subset*
-    
-        Optional, a subset of fields to retrieve. More information on [MongoDB Docs](http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-RetrievingaSubsetofFields)
-    
-    - *hydrate*
-    
-        Possible values:
-            
-            - `true`. Returns a model instance (default)
-            - `null`. Returns a plain object that is augmented to match the missing properties defined in the model.
-            - `false`. Returns the object as it's retrieved from MongoDB.
+Where `Comments` is a `Schema` we created. This means that creating embedded
+documents is as simple as:
 
-            
-- **findById(id, fn, hydrate)**
-    
-    Returns an instance of QueryWriter
-    
-    - *id*
-        
-        Document id (hex or string allowed)
-        
-    - *fn*
-    
-        Optional callback.  Called on success.
-    
-    - *hydrate*
-    
-        Same as above
-    
-- **update(id, doc, fn)**
+    // retrieve my model
+    var BlogPost = mongoose.model('BlogPost');
 
-    Sets/updates *only* the properties of the passed document for the specified object id 
+    // create a blog post
+    var post = new BlogPost();
 
-    - *id*
-        
-        Document id (hex or string allowed)
-        
-    - *fn (doc)*
-    
-        Optional callback.  Called on Success.  Doc paramter will contain the hyrdrated document from the DB after the update.
-    
-    - *hydrate*
-    
-        Same as above
-        
-- **remove(where, fn)**
+    // create a comment
+    post.comments.push({ title: 'My comment' });
 
-    Executes the query (and triggers a remove of the matched documents)
+    post.save(function (err) {
+      if (!err) console.log('Success!');
+    });
 
-    - *where*
-        
-        Valid where clause.
-        
-    - *fn*    
-    
-        Optional callback.  Called on success.
+The same goes for removing them:
 
-### EmbeddedObject
+    BlogPost.findById(myId, function (err, post) {
+      if (!err) {
+        post.comments[0].remove();
+        post.save(function (err) {
+          // do something
+        });
+      }
+    });
 
-#### Methods
+Embedded documents enjoy all the same features as your models. Defaults,
+validators, middleware. Whenever an error occurs, it's bubbled to the `save()`
+error callback, so error handling is a snap!
 
-- **remove**
-    
-    Marks the embeded object for deletion
-    
-### QueryWriter
+Mongoose interacts with your embedded documents in arrays _atomically_, out of
+the box.
 
-QueryWriter allows you to construct queries with very simple syntax. All its methods return the `QueryWriter` instance, which means they're chainable.
+## Middleware
 
-#### Methods
+Middleware is one of the most exciting features about Mongoose 1.0. Middleware
+takes away all the pain of nested callbacks.
 
-##### Executers
+Middleware are defined at the Schema level and are applied when the methods
+`init` (when a document is initialized with data from MongoDB), `save` (when
+a document or embedded document is saved).
 
-These methods execute the query and return a `QueryPromise`.
+There's two types of middleware, determined by the signature of the function
+you define (ie: the parameters your function accepts):
 
-- **exec**
+- Serial
+  Serial middleware are defined like:
 
-    Executes the query.
+        .pre(method, function (next) {
+          // ...
+        })
 
-- **count**
+  They're executed one after the other, when each middleware calls `next`.
 
-    Executes the query (and triggers a count)
+- Parallel
+  Parallel middleware offer more fine-grained flow control, and are defined
+  like
 
-    In addition, for the sake of simplicity, all the promise methods (see "Queueable methods") are mirrored in the QueryWriter and trigger `.exec()`. Then, the following two are equivalent:
+        .pre(method, function (next, done) {
+          // ...
+        })
 
-        User.find({username: 'john'}).all(fn)
-    
-    and:
-    
-        User.find({username: 'john'}).exec().all(fn)
+  Parallel middleware can `next()` immediately, but the final argument will be
+  called when all the parallel middleware have called `done()`.
 
-##### Modifiers
-    
-- **where**
-    
-- **sort**
+### Error handling
 
-- **limit**
+If any middleware calls `next` or `done` with an `Error` instance, the flow is
+interrupted, and the error is passed to the function passed as an argument.
 
-- **skip**
+For example:
 
-- **snapshot**
+    schema.pre('save', function (next) {
+        // something goes wrong
+        next(new Error('something went wrong'));
+    });
 
-- **group**
+    // later...
 
-### QueryPromise
-
-A promise is a special object that acts as a `queue` if MongoDB has not resulted the results, and executes the methods you call on it once the results are available.
-
-For example
-
-    User.find({ age: { '$gt': 5 } }).first(function(result){
-        // gets first result
-    }).last(function(result){
-        // gets last result
+    myModel.save(function (err) {
+      // err can come from a middleware
     });
 
-#### Methods
+## API docs
 
-- **stash(fn)**
+You can find the [Dox](http://github.com/visionmedia/dox) generated API docs at
+http://mongoosejs.com.
 
-    Stashes all the current queued methods, which will be called when `complete` is called. Methods that are queued **after** stash is called will only fire after `complete` is called again.
+## Contributing to Mongoose
 
-- **complete(result)**
+### Cloning the repository
 
-    Completes the promise. The result parameter is optional. It's either null or an array of documents. (internal use)
+Make a fork of `mongoose`, then clone it in your computer. The `master` branch
+contains the current stable release, and the `develop` branch the next upcoming
+major release.
 
-##### Queueable Methods
+If `master` is at `1.0`, `develop` will contain the upcoming `1.1` (or `2.0` if
+the `1` branch is nearing its completion).
 
-You can call all of these in a row, but the callbacks will only trigger when `complete is called`
+### Guidelines
 
-- **all(fn)**
+- Please write inline documentation for new methods or class members.
+- Please write tests and make sure your tests pass.
+- Before starting to write code, look for existing tickets or create one for
+  your specifc issue (unless you're addressing something that's clearly broken).
+  That way you avoid working on something that might not be of interest or that
+  has been addressed already in a different branch.
 
-    Fires with all the results as an array, or an empty array.
-
-- **get(fn)**
-
-    Synonym to `all`
-
-- **last(fn)**
-
-    Fires with the last document or *null*
-
-- **first(fn)**
-
-    Fires with the first document of the resulset or *null* if no documents are returned
-
-- **one(fn)**
-
-    Synonym to `first`
-
 ## Credits
 
-Nathan White <[e-mail]>
+- Guillermo Rauch - [e-mail] - [Guille](http://github.com/guille)
+- Nathan White - [nw](http://github.com/nw/)
+- Brian Noguchi - [bnoguchi](https://github.com/bnoguchi)
 
-Guillermo Rauch <[e-mail]>
+## License
 
-## License 
-
-(The MIT License)
-
 Copyright (c) 2010 LearnBoost <[e-mail]>
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• - Removedmongodb@0.7.9