feat(@aws-amplify/datastore): Support non-@model types in DataStore

[manueliglesias]

Issue #, if available:
See aws-amplify/amplify-cli#2988

Description of changes:
This change allows the usage of types with no @model directive.

Field values of a non-@model type will be stored alongside the @model instance

e.g. with the following schema, the JSON shown is stored

type Note @model {
  id: ID!
  content: String!
  metadata: Metadata
}

type Metadata {
  author: String!
  tags: [String]
  nested: Nested
}

type Nested {
  x: Int
}

{
  "__typename": "Note",
  "_lastChangedAt": 1584144474971,
  "_version": 1,
  "content": "Content 1584144474557",
  "createdAt": "2020-03-14T00:07:54.911Z",
  "id": "b41f57cc-4375-4bc5-83e2-1da694381f7f",
  "metadata": {
    "author": "Manolo",
    "tags": [
      "amazon",
      "aws",
      "mobile"
    ],
    "nested": {
      "x": 12345
    }
  },
  "updatedAt": "2020-03-14T00:07:54.911Z"
}

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[lgtm-com]

This pull request introduces 1 alert when merging 79bcdec into 97b3186 - view on LGTM.com

new alerts:

• 1 for Unused variable, import, function or class

[codecov]

Codecov Report

Merging #5128 into master will decrease coverage by 3.13%.
The diff coverage is 80.57%.

@@            Coverage Diff             @@
##           master    #5128      +/-   ##
==========================================
- Coverage   76.35%   73.21%   -3.14%     
==========================================
  Files         175      193      +18     
  Lines        9676    11441    +1765     
  Branches     1927     2218     +291     
==========================================
+ Hits         7388     8377     +989     
- Misses       2150     2916     +766     
- Partials      138      148      +10     

Impacted Files	Coverage Δ
packages/datastore/__tests__/schema.ts	100.00% <ø> (ø)
packages/datastore/src/storage/storage.ts	67.59% <ø> (ø)
packages/datastore/src/sync/processors/mutation.ts	13.38% <0.00%> (ø)
packages/datastore/src/sync/processors/sync.ts	18.05% <0.00%> (ø)
packages/datastore/src/sync/index.ts	15.42% <42.85%> (ø)
packages/datastore/src/datastore/datastore.ts	70.80% <81.15%> (ø)
packages/datastore/__tests__/model.ts	100.00% <100.00%> (ø)
...ackages/datastore/src/storage/adapter/indexeddb.ts	73.26% <100.00%> (ø)
...ages/datastore/src/sync/processors/subscription.ts	43.91% <100.00%> (ø)
packages/datastore/src/sync/utils.ts	80.66% <100.00%> (ø)
... and 20 more

---

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[Amplifiyer]

LGTM, small naming suggestions.

[lgtm-com]

This pull request fixes 1 alert when merging 8defa36 into 0ddb6af - view on LGTM.com

fixed alerts:

• 1 for Unused variable, import, function or class

[Amplifiyer]

Looks good to 🚢 it

[Ashish-Nanda]

LGTM, just one minor comment

[Ashish-Nanda]

Ship it! 🚢 🚀

[lgtm-com]

This pull request fixes 1 alert when merging cf94d44 into 0ddb6af - view on LGTM.com

fixed alerts:

• 1 for Unused variable, import, function or class

[github-actions]

This pull request has been automatically locked since there hasn't been any recent activity after it was closed. Please open a new issue for related bugs.

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