For single product bundle option underlying values set must link to unique SKUs

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Reorganized
• Affects Version/s: 2.1.1
• Fix Version/s: 2.1.1
• Component/s: Digital Merchandise Management → Options
• Labels:
  • backend
• Git Pull Request: https://github.com/marco-leo/liferay-portal-ee/pull/805
• Epic Link: Product Bundles 2/2

Single product bundle option should contain values that point to unique SKU values.
Other sibling options in the bundle may have values that link to SKU linked by other option's value, as long as SKU set scoped to the parent option is unique.

Valid:
Option A: SKU1, SKU2, SKU3
Option B: SKU4, SKU5, SKU2
Option C: SKU6, SKU7, SKU1

Invalid:
Option A: SKU1, SKU2, SKU2 (invalid because of SKU2)
Option B: SKU1, SKU3, SKU3, SKU4 (invalid because of SKU3)
Option C: SKU5, SKU2, SKU3

Add integration test that fails if NON-UNIQUE SKU is added to cp definition option value

Implementation suggestions:
provide private method _validateLinkedCPDefinitionOptionValueRel(CPDefinitionOptionValueRel) that will check current SKU against existing, sibling persisted cp definition option values.