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index.js
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index.js
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var _ = require('underscore');
var express = require('express');
var mongoose = require('mongoose');
var pluralize = require('pluralize');
/**
* Creates 7 RESTful routes for listing,
* creating, storing, getting, editing,
* updating and deleting Mongoose models.
*
* @class CrudGenerator
* @param {Object} options
* @param {Object} options.model
* @param {String} [options.theme]
* @param {Array} [options.middleware]
* @param {Array} [options.overviewProperties]
* @param {Array} [options.ignoredProperties]
*/
var CrudGenerator = function (options){
var defaultOptions = {
theme: __dirname+'/theme',
ignoredProperties: ['__v', '_id'],
overviewProperties: [],
query: {}
};
_.defaults(options, defaultOptions);
/*
* @property options
* @type Object
* @default {
* theme: __dirname+'/theme/',
* ignoredProperties: ['__v', '_id'],
* overviewProperties: []
* }
*/
this.options = options;
/*
* @property model
* @type Object
*/
this.model = options.model;
/*
* @property modelName
* @type String
*/
this.modelName = options.model.modelName;
/*
* @property routeStem
* @type String
*/
if(options.routeStem){
this.routeStem = options.routeStem;
} else {
this.routeStem = pluralize(this.modelName);
}
/*
* @property method
* @type String
*/
this.method;
};
/*
* Creates an Express app with the RESTful
* routes.
*
* @method app
* @return {Object} Express app
*/
CrudGenerator.prototype.app = function (){
var app = express();
app.use(function (req, res, next){
if(req.url.substr(-1) != '/'){
res.redirect(301, req.originalUrl+'/');
} else {
next();
}
});
/*
* GET /{resources}/
*/
app.get(
'/'+this.routeStem+'/',
this.options.middleware,
this.listResources.bind(this)
);
/*
* GET /{resources}/create/
*/
app.get(
'/'+this.routeStem+'/create/',
this.options.middleware,
this.createResource.bind(this)
);
/*
* POST /{resources}/
*/
app.post(
'/'+this.routeStem+'/',
this.options.middleware,
this.storeResource.bind(this)
);
/*
* GET /{resources}/{id}/
*/
app.get(
'/'+this.routeStem+'/:id/',
this.options.middleware,
this.getResource.bind(this)
);
/*
* GET /{resources}/{id}/edit/
*/
app.get(
'/'+this.routeStem+'/:id/edit/',
this.options.middleware,
this.editResource.bind(this)
);
/*
* PUT /{resources}/{id}/
*/
app.put(
'/'+this.routeStem+'/:id/',
this.options.middleware,
this.updateResource.bind(this)
);
/*
* DELETE /{resources}/{id}/
*/
app.del(
'/'+this.routeStem+'/:id/',
this.options.middleware,
this.deleteResource.bind(this)
);
return app;
};
/*
* Returns a list of the model properties,
* not including those on the ignoredProperties
* list. By default this includes _id and __v
* as these are generate by Mongo.
*
* @method getProperties
* @return {Array} Array of the model properties
*/
CrudGenerator.prototype.getProperties = function(){
var properties = [];
for(var property in this.model.schema.paths){
if(this.options.ignoredProperties.indexOf(property) < 0){
properties.push(property);
}
}
properties.sort();
return properties;
};
/*
* Handle a 'list' request, rendering a page
* with table of all of the existing resources.
*
* @method listResources
* @param {Request} req
* @param {Response} res
*/
CrudGenerator.prototype.listResources = function(req, res){
this.method = 'list';
var $self = this;
this.model
.find($self.options.query)
.exec(function (err, resources){
res.locals.settings = $self;
res.locals.properties = $self.getProperties();
res.locals.resources = resources;
res.render($self.options.theme+'/list.ejs');
});
};
/*
* Handle a 'create' request, rendering a page
* with an empty form with all the model
* properties.
*
* @method createResource
* @param {Request} req
* @param {Response} res
*/
CrudGenerator.prototype.createResource = function(req, res){
this.method = 'create';
res.locals.settings = this;
res.locals.properties = this.getProperties();
res.render(this.options.theme+'/create.ejs');
};
/*
* Handle a 'store' request, saving the new
* resource and redirecting to the 'get'
* method for the new resource.
*
* @method storeResource
* @param {Request} req
* @param {Response} res
*/
CrudGenerator.prototype.storeResource = function(req, res){
this.method = 'store';
var $self = this;
var properties = this.getProperties();
var resource = new this.model();
properties.forEach(function(property){
if($self.options.query[property]){
resource[property] = $self.options.query[property];
} else if(req.param(property)){
resource[property] = req.param(property);
}
});
resource.save(function (err, resource){
if(err){
console.log(err);
}
res.redirect($self.routeStem+'/'+resource._id);
});
};
/*
* Handle a 'get' request, retrieving the
* specified resouce and rendering a page
* listing its properties.
*
* @method getResource
* @param {Request} req
* @param {Response} res
*/
CrudGenerator.prototype.getResource = function(req, res){
this.method = 'get';
var $self = this;
this.model
.findOne({_id: req.param('id')})
.exec(function (err, resource){
res.locals.settings = $self;
res.locals.properties = $self.getProperties();
res.locals.resource = resource;
res.render($self.options.theme+'/get.ejs');
});
};
/*
* Handle an 'edit' request, retrieving the
* specified resouce and rendering a page
* with a form to edit its properties.
*
* @method editResource
* @param {Request} req
* @param {Response} res
*/
CrudGenerator.prototype.editResource = function(req, res){
this.method = 'edit';
var $self = this;
this.model
.findOne({_id: req.param('id')})
.exec(function (err, resource){
res.locals.settings = $self;
res.locals.properties = $self.getProperties();
res.locals.resource = resource;
res.render($self.options.theme+'/edit.ejs');
});
};
/*
* Handle an 'update' request, retrieving the
* specified resouce, updating its properties
* and redirecting to the 'get' method for the
* resource.
*
* @method getResource
* @param {Request} req
* @param {Response} res
*/
CrudGenerator.prototype.updateResource = function(req, res){
this.method = 'update';
var $self = this;
var properties = this.getProperties();
this.model
.findOne({_id: req.param('id')})
.exec(function (err, resource){
properties.forEach(function(property){
if(req.param(property)){
resource[property] = req.param(property);
}
});
resource.save(function (err, resource){
if(err){
console.log(err);
}
res.redirect($self.routeStem+'/'+resource._id);
});
});
};
/*
* Handle a 'delete' request, retrieving the
* specified resouce and removing it entirely
* before redirecting to the 'list' method for
* the model.
*
* @method deleteResource
* @param {Request} req
* @param {Response} res
*/
CrudGenerator.prototype.deleteResource = function(req, res){
this.method = 'delete';
var $self = this;
this.model
.findOneAndRemove({_id: req.param('id')})
.exec(function (err, resource){
res.redirect($self.routeStem);
});
};
module.exports = function (options){
var g = new CrudGenerator(options);
return g.app();
};