Within a custom()-method: How to save to a different field within an embedded array?

[thebarty]

Hi guys,

I am building a icecream-order-machine where customers place their icecream-orders. 👍

There are 2 Collections:

1. Scoops (= our inventory, types of scoops)
2. ScoopOrders (= a customer can order multiple amounts of scoops).
   An example: "Jimmy Hendrix orders 2 scoops of vanilla and 3 scoops of chocolate."

The orderItems are embedded as an array into the ScoopOrder Collection.

Question:
We are doing MongoDB-NoSQL, so the best way to go is to save the scoop._id PLUS the full ScoopObjekt for each ScoopOrder.

How do I do this with Collection2 & Autoform?

This is the code I have so far - I am stuck within the custom() method:

AutoformScoopOrders = new Mongo.Collection('autoformscooporders');

autoformScoopOrdersSchema = new SimpleSchema({
  customerName: {
    type: String
  },

  // scoopItems Array
  scoopItems: {
    type: Array,
    optional: true,
  },
  'scoopItems.$': {
    type: Object
  },
  'scoopItems.$.amount': {
    type: Number,
  },
  'scoopItems.$.scoopId': {
    type: String,
    autoform: {  // Foreign-Key Relationship to single Scoops-Object
      options: function () {
        return Scoops.find().map(function (c) {
          return {label: c.name + '( ' + c.price + '$ )', value: c._id};
        });
      }
    },
    custom: function () {
      if (this.isInsert || this.isUpdate) {
        var theScoopInstance = Scoops.findOne(this.value);
        **// QUESTION: How do I save the instance to scoopItems.$.scoopInstance?**
      }
    },
  },
  'scoopItems.$.scoopInstance': {
    type: Object,
    optional: true,
    autoform: {
      type: 'hidden',
      label: false,
    },
  },  
});

AutoformScoopOrders.attachSchema(autoformScoopOrdersSchema);

[serkandurusoy]

Try this, or something similar since I have not tested this, but it should point you in the right direction.

AutoformScoopOrders = new Mongo.Collection('autoformscooporders');

autoformScoopOrdersSchema = new SimpleSchema({
  customerName: {
    type: String
  },
  // scoopItems Array
  scoopItems: {
    type: Array,
    optional: true,
  },
  'scoopItems.$': {
    type: Object
  },
  'scoopItems.$.amount': {
    type: Number,
  },
  'scoopItems.$.scoopId': {
    type: String,
    autoform: {  // Foreign-Key Relationship to single Scoops-Object
      options: function () {
        return Scoops.find().map(function (c) {
          return {label: c.name + '( ' + c.price + '$ )', value: c._id};
        });
      }
    }
  },
  'scoopItems.$.scoopInstance': {
    type: Object,
    blackbox: true // or define schema keys for instance properties if you want
    optional: true,
    autoValue: function () {
        var theScoopInstanceId = this.siblingField('scoopId');
        var theScoopInstance = theScoopInstanceId.isSet && Scoops.findOne(theScoopInstanceId.value);
        return _.omit(theScoopInstance, '_id');
    },
    autoform: {
      omit: true;
    },
  },  
});

[thebarty]

Hi @serkandurusoy

yeah man! Got it going:

  'scoopItems.$.scoopInstance': {
    type: Object,
      blackbox: true, // or define schema keys for instance properties if you want
      optional: true,
      autoValue: function () {
          var theScoopInstanceId = this.siblingField('scoopId');
          var theScoopInstance = theScoopInstanceId.isSet && Scoops.findOne(theScoopInstanceId.value);
          return _.omit(theScoopInstance, '_id');
      },
      autoform: {
        omit: true,
      },
  },

Now I'll try to use collection-hooks to update the scoopInstance on update/deletes on the Scoops Object.

Thanks a lot for your help!

[serkandurusoy]

No problem, glad it worked!

Sent from my iPhone

On Sep 28, 2015, at 10:36, MikeSmith12222 notifications@github.com wrote:

Hi @serkandurusoy https://github.com/serkandurusoy

yeah man! Got it going:

'scoopItems.$.scoopInstance': {
type: Object,
blackbox: true, // or define schema keys for instance properties
if you want
optional: true,
autoValue: function () {
var theScoopInstanceId = this.siblingField('scoopId');
var theScoopInstance = theScoopInstanceId.isSet &&
Scoops.findOne(theScoopInstanceId.value);
return _.omit(theScoopInstance, '_id');
},
autoform: {
omit: true,
},
},

Now I'll try to use collection-hooks to update the scoopInstance on
update/deletes on the Scoops Object.

Thanks a lot for your help!

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