gistfile1.js

var schema = new Schema({

  name: { type : String, default : '', trim : true },
  description: {
    body: { type : String, default : '', trim : true },
    updated_at: { type : Date, default : Date.now },
    updated_by: { type : Schema.ObjectId, ref : 'User' }
  },

  report: {
    day: { type : String, default : 'last tuesday', trim : true },
    auto: { type: Boolean }
  },
  initial: {
    cash: { type : Number, default : 0 },
    bank: { type : Number, default : 0 }
  },
  tax: { type : Number, default : 0, min: 0 },
  deposit: { type : Number, default : 0, min: 0 },

  kitchen: { type : Schema.ObjectId, ref : 'Kitchen' },

  members: [{
    user: { type : Schema.ObjectId, ref : 'User' },
    joined_at: { type : Date, default : Date.now },
  }],

  items: [{
    name,
    price,
    stock,
    history: [{
      change,
      date
    }],
    created : {
      at,
      by
    }
  }],

  created: {
    by: { type : Schema.ObjectId, ref : 'User' },
    at: { type : Date, default : Date.now }
  },
  updated: {
    by: { type : Schema.ObjectId, ref : 'User' },
    at: { type : Date, default : Date.now }
  }
})