sails-model-new

It initializes new sails model instance while maintaining the current scope. It extend sails model with class/static new method which will create a new model instance without persist it.

It also allow for custom validation error messages to be defined. If any ValidationError found by invoking validate() on the instance, all custom validation error message will be available on error.Errors of your validate callback. check validation setup

Note:

• This requires Sails v0.11.0+. If v0.11.0+ isn't published to NPM yet, you'll need to install it via Github.

All model instance methods such as :

• validate()

• save()

• toJSON()

• toObject()

• destroy()

are maintained and you can call them. It expects arguments in the same format as Model.create.

Installation

$ npm install --save sails-model-new

Usage

After you have finish setup, all model(s) or specific model(s) will have new static method associate with them and you can use it as show below.

//create a new user instance
var user =  User.new(attributes);
 
//or empty instance
var user = User.new();
 
//save user
user
    .save(function(error,result){
        if(error){
            console.log(error);
        }
        else{
            //result is the persisted instance of user
            console.log(result)
        }
    });
 
//even using promise
user
    .save()
    .then(function(result) {
    	console.log(result);
    })
    .catch(function(error) {
        console.log(error);
    });

Validation usage

• Add validationMessages static property in your sails model

//this is example
module.exports = {
    attributes: {
        username: {
            type: 'string',
            required: true
        },
        email: {
            type: 'email',
            required: true
        }
    },
    //model validation messages definitions
    validationMessages: { //hand for i18n & l10n
        email: {
            required: 'Email is required',
            email: 'Provide valid email address',
            unique: 'Email address is already taken'
        },
        username: {
            required: 'Username is required'
        }
    }
};

• Now if you invoke instance validate you will have all custom validation error at error.Erros

//somewhere in your codes
var user = User.new();
user
    .validate(function(error) {
        //you will expect the following
        //error to exist on error.Errors based on 
        //your custom validation messages
 
        expect(error.Errors.email).to.exist;
 
        expect(error.Errors.email[0].message)
            .to.equal(User.validationMessages.email.email);
 
        expect(error.Errors.email[1].message)
            .to.equal(User.validationMessages.email.required);
 
 
        expect(error.Errors.username).to.exist;
        expect(error.Errors.username[0].message)
            .to.equal(User.validationMessages.username.required);
 
        done();
    });

Note: If you want custom error messages at model static level consider using sails-hook-validation. sails-model-new validate() opt to use error.Errors and not to re-create or remove any properties of error object so as to remain with sails legacy options

Testing

• Clone this repository

• Install all development dependencies

$ npm install

• Then run test

$ npm test

Contribute

Fork this repo and push in your ideas. Do not forget to add a bit of test(s) of what value you adding.

Licence

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.