collection.addField not working if schema is simpl-schema

[EloyID]

Describe the bug
If I create a collection using a schema which is instance of simpl-schema and then I use addField, it won't appear in GraphQL

To Reproduce
Steps to reproduce the behavior:

1. Create a collection using simpl-schema in the schema
2. Use collection.addField
3. Try to query/filter by this field

Expected behavior
The field to exist

[Erik Dakoda]

Try this:

  collection.attachSchema({
    addedField1: {
      type: Boolean,
      . . .
    },
    addedField2: {
      type: Object,
      . . .
    },
  });

[EloyID]

It's already in the addField function and it used to work in the release of november

Vulcan/packages/vulcan-lib/lib/modules/collections.js

Lines 76 to 89 in f5012d1

 Mongo.Collection.prototype.addField = function (fieldOrFieldArray) { 
   const collection = this; 
   const fieldSchema = {}; 
  
   const fieldArray = Array.isArray(fieldOrFieldArray) ? fieldOrFieldArray : [fieldOrFieldArray]; 
  
   // loop over fields and add them to schema (or extend existing fields) 
   fieldArray.forEach(function (field) { 
     fieldSchema[field.fieldName] = field.fieldSchema; 
   }); 
  
   // add field schema to collection schema 
   collection.attachSchema(createSchema(merge(collection.options.schema, fieldSchema))); 
 }; 

[Erik Dakoda]

@EloyID there is a bug in addField that I attempted to fix with a PR but the change was reverted by @SachaG. Here is our discussion about it: #2648 . My solution above is the workaround I am using.