provisions to identify fields with multiple value

[HiteshRepo]

provisions to identify fields with multiple value.
Some fields can hold multiple values and single value based on a property called allowMultipleValues.
For example, Lookup column:

"lookup": {
    "allowMultipleValues": true,
    "allowUnlimitedLength": false,
    "columnName": "Title",
    "listId": "21b45bf2-e495-4582-b114-839577ff8e4f"
}

But choice columns, even though allows to set multiple choices/value, does not have that particular field allowMultipleValues to indicate.
So in this PR we are trying determine the same by the stored values while restoring.

Original list with choice column in site:

Restored list with choice column in site

The color does not come through though

Does this PR need a docs update or release note?

• ✅ Yes, it's included
• 🕐 Yes, but in a later PR
• ⛔ No

Type of change

• 🌻 Feature
• 🐛 Bugfix
• 🗺️ Documentation
• 🤖 Supportability/Tests
• 💻 CI/Deployment
• 🧹 Tech Debt/Cleanup

Issue(s)

#5108

Test Plan

• 💪 Manual
• ⚡ Unit test
• 💚 E2E

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[ryanfkeepers]

have a nit on func patterns, but otherwise looks good.

[ryanfkeepers]

Preference on general func behavior: rather than setting values a provided object (which causes coupling between the caller and the func), funcs that provide return values and let callers act on them (which provides cohesion without coupling), are easier to maintain in the long term. In this case, it's a better pattern to have a func whose only job is to check whether the value is a slice. Ex:

Suggested change

	func setMultipleEnabledByFieldData(val any, colDetails *columnDetails) {
	// for columns like 'choice', even though it has an option to hold single/multiple values,
	// the columnDefinition property 'allowMultipleValues' is not available.
	// Hence we determine single/multiple from the actual field data.
	if reflect.TypeOf(val).Kind() == reflect.Slice {
	colDetails.isMultipleEnabled = true
	}
	}
	func isSlice(val any) bool {
	return reflect.TypeOf(val).Kind() == reflect.Slice
	}

[sonarcloud]

Quality Gate passed

Kudos, no new issues were introduced!

0 New issues
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud