コアモデルの作成・DB接続をGORMを利用する形に変更

internal/model/comment.go

@@ -0,0 +1,13 @@
+package model
+
+import "time"
+
+type Comment struct {
+	ID             uint      `gorm:"primaryKey"`
+	PageURL        string    `gorm:"index;size:255;not null"`
+	AuthorName     string    `gorm:"size:100;not null"`
+	Content        string    `gorm:"type:varchar(5000);not null"`
+	UserIdentifier string    `gorm:"size:255"`
+	IsSpam         bool      `gorm:"default:false"`
+	CreatedAt      time.Time `gorm:"index"`
+}