CSV取込機能を実装し、Expenseモデルと関連するStore・ExpenseCategoryモデルを追加。CSVパーサーを作成し、出光CSVに対応。明細編集画面のAJAX保存機能を実装し、取込結果を表示する機能を追加。作業ログをdiary.mdに追記。

expenses/models.py

@@ -1,3 +1,47 @@
 from django.db import models
 
-# Create your models here.
+
+class Store(models.Model):
+    name = models.CharField(max_length=200, unique=True)
+    is_active = models.BooleanField(default=True)
+
+    def __str__(self) -> str:
+        return self.name
+
+
+class ExpenseCategory(models.Model):
+    name = models.CharField(max_length=200, unique=True)
+    is_active = models.BooleanField(default=True)
+
+    def __str__(self) -> str:
+        return self.name
+
+
+class Expense(models.Model):
+    SOURCE_CHOICES = [
+        ('idemitsu', 'Idemitsu'),
+    ]
+
+    use_date = models.DateField()
+    description = models.CharField(max_length=255)
+    amount = models.IntegerField()
+    store = models.ForeignKey(Store, null=True, blank=True, on_delete=models.SET_NULL)
+    expense_category = models.ForeignKey(
+        ExpenseCategory, null=True, blank=True, on_delete=models.SET_NULL
+    )
+    is_business = models.BooleanField(null=True, blank=True)
+    note = models.TextField(blank=True)
+    source = models.CharField(max_length=50, choices=SOURCE_CHOICES)
+    source_hash = models.CharField(max_length=64)
+    ai_score = models.FloatField(null=True, blank=True)
+    human_confirmed = models.BooleanField(default=False)
+    created_at = models.DateTimeField(auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)
+
+    class Meta:
+        constraints = [
+            models.UniqueConstraint(fields=['source', 'source_hash'], name='uniq_source_hash'),
+        ]
+
+    def __str__(self) -> str:
+        return f'{self.use_date} {self.description} {self.amount}'