var mongoose = require('mongoose');
var uniqueValidator = require('mongoose-unique-validator');

var MetalSchema = new mongoose.Schema({
    ordering: Number,
    code: { type: String, upercase: true, unique: true },
    title: String,
    color: String,
    image: String
}, {timestamps: true, toJSON: {virtuals: true}});

MetalSchema.plugin(uniqueValidator, { message: 'is already taken' });

MetalSchema.methods.toJSONFor = function(){
    return {
        ordering: this.ordering,
        code: this.code,
        title: this.title,
        color: this.color,
        image: this.image
    };
};

mongoose.model('Metal', MetalSchema);