add model column

+# Generated by Django 3.0.6 on 2020-06-10 13:29
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('api', '0007_auto_20200610_1217'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='item',
+            name='file_type',
+            field=models.CharField(max_length=100, null=True),
+        ),
+    ]

@@ -5,6 +5,7 @@ class Item(models.Model):
     item_id = models.AutoField(primary_key = True)
     is_folder = models.BooleanField(default = False)
     name = models.CharField(max_length = 50)
+    file_type = models.CharField(max_length=100, null=True) # signed_url 생성을 위해 file type 세팅
     path = models.TextField()
     #parent = models.ForeignKey('Item', on_delete=models.CASCADE, null=True) #related_name
     parent = models.IntegerField()