yorkie-team / yorkie

Yorkie is a document store for collaborative applications.
https://yorkie.dev
Apache License 2.0
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Ensure proper deletion of documents in MemDB #920

Closed hackerwins closed 1 week ago

hackerwins commented 1 week ago

What this PR does / why we need it:

Ensure proper deletion of documents in MemDB

In Dashboard, there was an issue where re-creating and deleting a previously deleted document did not remove the document as expected. This issue occurred because the already deleted document was not properly filtered out and returned again upon re-deletion. This commit fixes this issue by adding a filter to prevent previously deleted documents from being returned during document retrieval for deletion.

Which issue(s) this PR fixes:

Fixes #919

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

Additional documentation:

Checklist:

Summary by CodeRabbit

coderabbitai[bot] commented 1 week ago

[!WARNING]

Review failed

The pull request is closed.

Walkthrough

The changes focus on refactoring the document retrieval process within a memory-based database. The FindDocInfoByKeyAndOwner method was simplified by delegating key retrieval to a new helper method, findDocInfoByKey. Additionally, the test suite was updated to include a subtest that ensures documents are correctly found after being created, deleted, and potentially recreated, addressing deletion-related malfunctions.

Changes

File Change Summary
.../backend/database/memory/database.go Refactored FindDocInfoByKeyAndOwner to use a new helper method findDocInfoByKey for document retrieval. Improved readability, maintainability, and error handling.
.../backend/database/testcases/testcases.go Expanded RunFindDocInfoTest to include a subtest for verifying document retrieval by key, ensuring documents can be correctly found post-creation and deletion, aimed at addressing deletion issues.

Sequence Diagram(s)

sequenceDiagram
    participant Client
    participant DB
    participant MemDB
    Client->>DB: FindDocInfoByKeyAndOwner(key, owner)
    DB-->>DB: findDocInfoByKey(key)
    DB-->>Client: Document Info
    Note over Client, DB: Refactored for clarity

    Client->>DB: Delete Document(key)
    DB->>MemDB: Remove Document(key)
    MemDB-->>DB: Confirmation
    DB-->>Client: Remove Success

    Client->>DB: Create New Document(key)
    DB->>MemDB: Store Document(key)
    MemDB-->>DB: Confirmation
    DB-->>Client: Creation Success

    Client->>DB: Delete Document(key)
    DB->>MemDB: Remove Document(key)
    MemDB-->>DB: Confirmation
    DB-->>Client: Remove Success

Assessment against linked issues

Objective (Issue #919) Addressed Explanation
Resolve issue with document deletion in MemDB causing malfunction
Ensure document retrieval post-deletion works correctly

Poem

In the realm of memory, a change was made,
To find a doc’s info, the old ways swayed.
Refactored code, now clean and bright,
Bugs and glitches out of sight.
Tests to ensure deletions hold,
For a MemDB that’s bold and gold.


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codecov[bot] commented 1 week ago

Codecov Report

Attention: Patch coverage is 78.78788% with 7 lines in your changes missing coverage. Please review.

Project coverage is 50.86%. Comparing base (1d83899) to head (a09b6b5).

Files Patch % Lines
server/backend/database/memory/database.go 78.78% 5 Missing and 2 partials :warning:
Additional details and impacted files ```diff @@ Coverage Diff @@ ## main #920 +/- ## ========================================== + Coverage 50.71% 50.86% +0.15% ========================================== Files 70 70 Lines 10562 10551 -11 ========================================== + Hits 5356 5367 +11 + Misses 4674 4652 -22 Partials 532 532 ```

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