[Feat] 하나의 공고에 대한 모의지원 순번 api

[shinae1023]

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🚨 관련 이슈 번호 [#27 ]

Summary by CodeRabbit

• New Features
  • View your practice-application position and the total number of practice applications for a given job posting.
• Tests
  • Added automated test validating sequence and total-count calculation for practice applications.

[coderabbitai]

Caution

Review failed

Pull request was closed or merged during review

📝 Walkthrough

Walkthrough

Adds a GET endpoint /{mockApplyId}/sequence plus a response DTO, repository count queries, a service method that computes a 1-based sequence and total, and a unit test verifying the sequence computation.

Changes

Mock Apply Sequence Query

Layer / File(s)	Summary
Response DTO contract src/main/java/com/jobdri/jobdri_api/domain/mockapply/dto/response/MockApplySequenceResponse.java	New record MockApplySequenceResponse(Long jobPostingId, Long mockApplyId, int totalCount, int sequence) defining the response shape.
Repository count methods src/main/java/com/jobdri/jobdri_api/domain/mockapply/repository/MockApplyRepository.java	Adds long countByUserIdAndJobPostingId(Long userId, Long jobPostingId) and long countSequenceByUserIdAndJobPostingId(Long userId, Long jobPostingId, LocalDateTime createdAt, Long mockApplyId) with a JPQL @Query for cursor-based counting.
Service sequence computation src/main/java/com/jobdri/jobdri_api/domain/mockapply/service/MockApplyService.java	New getMockApplySequence(User user, Long mockApplyId) validates ownership, loads the MockApply, computes totalCount and 1-based sequence via repository counts, throws MOCK_APPLY_NOT_FOUND when invalid, and returns MockApplySequenceResponse.
HTTP GET endpoint src/main/java/com/jobdri/jobdri_api/domain/mockapply/controller/MockApplyController.java	New @GetMapping("/{mockApplyId}/sequence") endpoint delegates to mockApplyService.getMockApplySequence and returns ApiResponse<MockApplySequenceResponse>.
Test coverage src/test/java/com/jobdri/jobdri_api/domain/mockapply/service/MockApplyServiceTest.java	New test creates three MockApply entities, adjusts their createdAt timestamps, calls getMockApplySequence, and asserts jobPostingId, mockApplyId, totalCount, and computed sequence.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Poem

🐰 I hopped through rows to find my place,
Counted timestamps, id, and gentle pace.
A DTO carried the sequence true,
Controller, service, repo—all in view.
hop hop — a rabbit's QA trace.

🚥 Pre-merge checks | ✅ 3 | ❌ 2

❌ Failed checks (2 warnings)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The description is largely incomplete; the critical '세부 내용' section explaining why the PR is needed and implementation details is entirely empty, providing no technical rationale or context beyond the issue number.	Fill in the '세부 내용' section with a detailed explanation of the feature purpose, implementation approach, and any relevant technical considerations or design decisions.
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly describes the feature being added: an API endpoint to retrieve the mock application sequence number for a single job posting.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feat/#27-actual-apply-count

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In
`@src/main/java/com/jobdri/jobdri_api/domain/mockapply/service/MockApplyService.java`:
- Around line 97-109: The current code loads all MockApply rows via
mockApplyRepository.findAllByUserIdAndJobPostingIdOrderByCreatedAtAscIdAsc and
scans in memory to compute sequence; replace this with two COUNT queries: use
mockApplyRepository.countByUserIdAndJobPostingId(validatedUser.getId(),
mockApply.getJobPosting().getId()) for totalCount, and compute sequence by
counting how many rows for that user+jobPosting have createdAt before
mockApply.getCreatedAt() (and include ties using id <= mockApply.getId() for
deterministic ordering) via a new repository method (e.g.
countByUserIdAndJobPostingIdAndCreatedAtBeforeOrCreatedAtEqualsAndIdLessThanEqual)
so you avoid fetching full rows and remove the in-memory loop over mockApplies.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 16b38ede-4424-4de8-bfd3-a93bd4d1e1cd

📥 Commits

Reviewing files that changed from the base of the PR and between 6e8ca27 and abdf591.

📒 Files selected for processing (5)

• src/main/java/com/jobdri/jobdri_api/domain/mockapply/controller/MockApplyController.java
• src/main/java/com/jobdri/jobdri_api/domain/mockapply/dto/response/MockApplySequenceResponse.java
• src/main/java/com/jobdri/jobdri_api/domain/mockapply/repository/MockApplyRepository.java
• src/main/java/com/jobdri/jobdri_api/domain/mockapply/service/MockApplyService.java
• src/test/java/com/jobdri/jobdri_api/domain/mockapply/service/MockApplyServiceTest.java