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Date: Fri, 13 Mar 2026 17:11:10 +0900
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- 중복 journal_entry_lines 탐지 및 삭제 마이그레이션
- 동일 전표 내 같은 계정/거래처/금액의 중복 라인 정리
- 삭제 후 전표 차대 합계 재계산
---
 ...0000_fix_duplicate_journal_entry_lines.php | 92 +++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100644 database/migrations/2026_03_13_100000_fix_duplicate_journal_entry_lines.php

diff --git a/database/migrations/2026_03_13_100000_fix_duplicate_journal_entry_lines.php b/database/migrations/2026_03_13_100000_fix_duplicate_journal_entry_lines.php
new file mode 100644
index 00000000..ef327c6b
--- /dev/null
+++ b/database/migrations/2026_03_13_100000_fix_duplicate_journal_entry_lines.php
@@ -0,0 +1,92 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Log;
+
+return new class extends Migration
+{
+    /**
+     * 중복 journal_entry_lines 정리
+     *
+     * 문제: 미지급금 관리에서 프리랜서 잔액이 마이너스로 표시됨
+     * 원인: 동일 전표 내 같은 계정/거래처/금액의 라인이 중복 생성됨
+     * 해결: 중복 라인 중 ID가 큰 것을 삭제 (원본 보존)
+     */
+    public function up(): void
+    {
+        // 1. 동일 전표 내 중복 라인 탐지
+        // (같은 journal_entry_id + account_code + dc_type + trading_partner_name + debit_amount + credit_amount)
+        $duplicates = DB::select("
+            SELECT journal_entry_id, account_code, dc_type, trading_partner_name,
+                   debit_amount, credit_amount, COUNT(*) as cnt,
+                   MIN(id) as keep_id, GROUP_CONCAT(id ORDER BY id) as all_ids
+            FROM journal_entry_lines
+            WHERE account_code IN ('204', '205')
+            GROUP BY journal_entry_id, account_code, dc_type, trading_partner_name,
+                     debit_amount, credit_amount
+            HAVING cnt > 1
+        ");
+
+        if (empty($duplicates)) {
+            Log::info('[Migration] 중복 journal_entry_lines 없음 - 정리 불필요');
+
+            return;
+        }
+
+        $totalDeleted = 0;
+
+        foreach ($duplicates as $dup) {
+            $allIds = explode(',', $dup->all_ids);
+            $keepId = $dup->keep_id;
+            $deleteIds = array_filter($allIds, fn ($id) => (int) $id !== (int) $keepId);
+
+            if (! empty($deleteIds)) {
+                Log::info("[Migration] 중복 라인 삭제: journal_entry_id={$dup->journal_entry_id}, "
+                    ."account_code={$dup->account_code}, dc_type={$dup->dc_type}, "
+                    ."partner={$dup->trading_partner_name}, "
+                    ."keep_id={$keepId}, delete_ids=".implode(',', $deleteIds));
+
+                $deleted = DB::table('journal_entry_lines')
+                    ->whereIn('id', $deleteIds)
+                    ->delete();
+
+                $totalDeleted += $deleted;
+            }
+        }
+
+        Log::info("[Migration] 중복 journal_entry_lines 정리 완료: {$totalDeleted}건 삭제");
+
+        // 2. 삭제 후 전표 합계 재계산
+        if ($totalDeleted > 0) {
+            $affectedEntryIds = collect($duplicates)->pluck('journal_entry_id')->unique();
+
+            foreach ($affectedEntryIds as $entryId) {
+                $sums = DB::selectOne("
+                    SELECT COALESCE(SUM(debit_amount), 0) as total_debit,
+                           COALESCE(SUM(credit_amount), 0) as total_credit
+                    FROM journal_entry_lines
+                    WHERE journal_entry_id = ?
+                ", [$entryId]);
+
+                DB::table('journal_entries')
+                    ->where('id', $entryId)
+                    ->update([
+                        'total_debit' => $sums->total_debit,
+                        'total_credit' => $sums->total_credit,
+                    ]);
+
+                Log::info("[Migration] 전표 합계 재계산: id={$entryId}, "
+                    ."debit={$sums->total_debit}, credit={$sums->total_credit}");
+            }
+        }
+    }
+
+    /**
+     * 데이터 정리 마이그레이션이므로 rollback 불가
+     */
+    public function down(): void
+    {
+        Log::warning('[Migration] 중복 라인 삭제는 롤백할 수 없습니다.');
+    }
+};