Adding array element and then deleting first element breaks validation. BUG

[jcheroske]

Given a schema like:

Contacts.attachSchema(new SimpleSchema({

   name: {
      type: String,
      label: 'Name',
      max: 40
   },
   methods: {
      type: [Object],
      minCount: 1
   },
   'methods.$.type': {
      type: String,
      allowedValues: ['email','phone'],
      autoform: {
         options: [
            { label: 'Email', value: 'email' },
            { label: 'Phone', value: 'phone' }
         ]
      }
   },
   'methods.$.email': {
      type: String,
      regEx: SimpleSchema.RegEx.Email,
      max: 50
   },
   'methods.$.phone': {
      type: String,
      min: 7,
      max: 25
   },
   description: {
      type: String,
      label: 'Description',
      max: 1000,
      autoform: {
         rows: 10
      }
   }

}));

SimpleSchema.messages({
   required: "[label] is required",
   minString: "[label] must be at least [min] characters",
   maxString: "[label] can not exceed [max] characters",
   regEx: [
      { exp: SimpleSchema.RegEx.Email, msg: "[label] must be a valid email address" }
   ]
});

If I have a simple form like:

           {{# autoForm collection="Contacts" id="insertContactForm" type="insert" template="bviw" validation="keyup"}}
              {{> afFormGroup name="name" template="bviw"}}
              {{> afArrayField name="methods" template="bviw"}}
              {{> afFormGroup name="description" template="bviw"}}
           {{/autoForm}}

And I add a field to the array and then delete the first array element, validators no longer run. If I make the array three elements long, and then delete the middle element, validators still run on the first element but not on the second. I've tried using the bootstrap theme as well. There seems to be a bug when the array has missing elements. The validators only run on array elements before the first missing element.

[jcheroske]

I've spent some more time looking into this. What I've found, which may just be expected behavior, is that an array of objects is not validated on keyup validation within an insert form. If I have a schema that defines an array field containing objects, then no validation of the object's fields will occur during validation prior to form submission. If I add defaultValue: [{}] to the schema definition of the array, then the first object will validate. Any additional objects will not, I assume because they don't exist yet. Here is a meteorpad to illustrate:

http://meteorpad.com/pad/AS5zqm6iWDcPkDZD8/Autoform%20Array%20Validation%20Bug

So this issue may boil down to simply this: when adding a new element to an array using autoform-add-item, is there a way to tell autoform (or simple-schema) to create a new, empty object, when the new array element is added, so that validation will then occur?

[jcheroske]

Please go to the pad above and do the following:

1. Type a character into the 'name' field of array[0]. You will see a validation error.

2. Press '+' to add another element to the array.

3. Type a character into the 'name' field of the array[1]. You will see another validation error.

4. Press the '-' button to remove element [0]. You should see the validation error of the array[1] field disappear.

5. Mess around with the remaining name field. You should see that it no longer validates.

[serkandurusoy]

I removed my earlier comments here. I think I had under-tested. #1289 is on the right track to solve this and I updated autovalues for my array types to return _.compact(this.value) and it resolves the issue.

[cesarve77]

+1

[rafinskipg]

+1

[felixcatto]

+1

[chenhuiyi]

+1