server: remove user-project mappings when delete a project

[weizhouapache]

Description

This PR fixes #12601

When an account is added to a project with a project role (e.g. via addUserToProject), the resulting project_account row has a non-null user_id. Project cleanup (deleteProject ... cleanup=true) unassigns every account from the project via ProjectAccountDaoImpl#findByProjectIdUserId(projectId, accountId, null), expecting a null userId to mean "match this account regardless of which user_id the row has".

Types of changes

• Breaking change (fix or feature that would cause existing functionality to change)
• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Enhancement (improves an existing feature and functionality)
• Cleanup (Code refactoring and cleanup, that may add test cases)
• Build/CI
• Test (unit or integration test code)

Feature/Enhancement Scale or Bug Severity

Feature/Enhancement Scale

• Major
• Minor

Bug Severity

• BLOCKER
• Critical
• Major
• Minor
• Trivial

Screenshots (if appropriate):

How Has This Been Tested?

Verified on a live 2-node management server deployment:

• Built and deployed the patched jar to both management nodes.
• Reproduced the original issue with the pre-fix code: created an account, created a project, added the account's user to the project with addUserToProject roletype=Admin (producing a project_account row with a non-null user_id), deleted the project with cleanup=true (reported success), then attempted deleteAccount — reproduced the exact errorcode 431 failure from Unable to delete account if the project is removed #12601.
• Repeated the same steps against the fixed jar: deleteProject cleanup=true followed by deleteAccount both succeeded, and the account no longer appeared in listAccounts.
• Confirmed both management nodes ended up running the identical fixed build.

How did you try to break this feature and the system with this change?

[codecov]

Codecov Report

❌ Patch coverage is 0% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 16.37%. Comparing base (a4d3c66) to head (506fbc0).
⚠️ Report is 1 commits behind head on 4.20.

Files with missing lines	Patch %	Lines
.../com/cloud/projects/dao/ProjectAccountDaoImpl.java	0.00%	3 Missing ⚠️
...in/java/com/cloud/projects/ProjectManagerImpl.java	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               4.20   #14150      +/-   ##
============================================
- Coverage     16.37%   16.37%   -0.01%     
+ Complexity    13614    13613       -1     
============================================
  Files          5669     5669              
  Lines        501527   501528       +1     
  Branches      60922    60923       +1     
============================================
- Hits          82148    82142       -6     
- Misses       410171   410179       +8     
+ Partials       9208     9207       -1     

Flag	Coverage Δ
uitests	4.14% <ø> (ø)
unittests	17.24% <0.00%> (-0.01%)	⬇️

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[Copilot]

🟡 Changes recommended

Add regression tests covering removal of user-specific mappings during project cleanup.

Get a fresh assessment by requesting another Copilot review.

Pull request overview

Fixes project cleanup so user-specific project mappings are removed when deleting a project, allowing associated accounts to be deleted.

Changes:

• Allows nullable userId lookups in the project-account DAO.
• Uses account-wide lookup during project cleanup.
• Updates the DAO contract.

File summaries

File	Summary
server/src/main/java/com/cloud/projects/ProjectManagerImpl.java	Removes mappings regardless of user association during cleanup.
engine/schema/src/main/java/com/cloud/projects/dao/ProjectAccountDaoImpl.java	Implements optional user filtering.
engine/schema/src/main/java/com/cloud/projects/dao/ProjectAccountDao.java	Updates the DAO method signature.

Review details

Suppressed comments (1)

engine/schema/src/main/java/com/cloud/projects/dao/ProjectAccountDaoImpl.java:116

• Please add a regression test for the new nullable path. The current tests exercise user-specific lookups but do not verify that a user-specific project_account row is found and removed when userId is null; without that coverage, the fix for #12601 can regress to the old account-level-only lookup unnoticed.

        if (userId != null) {
            sc.setParameters("userId", userId);
        }

• Files reviewed: 3/3 changed files
• Comments generated: 1
• Review effort level: Lite

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