Add user db search

- Search user by email

Signed-off-by: Asai Neko <sugar@sne.moe>

data/user.go

@@ -0,0 +1,21 @@
+package data
+
+import "github.com/google/uuid"
+
+type User struct {
+	Id       uint      `json:"id" gorm:"primarykey;autoincrement"`
+	UUID     uuid.UUID `json:"uuid" gorm:"type:uuid;uniqueindex;not null"`
+	UserId   string    `json:"user_id" gorm:"size:8;uniqueindex;not null"`
+	Email    string    `json:"email" gorm:"uniqueindex;not null"`
+	Nickname string    `json:"nickname" gorm:"not null"`
+	Type     string    `json:"type" gorm:"not null"`
+	Subtitle string    `json:"subtitle" gorm:"not null"`
+	Avatar   string    `json:"avatar" gorm:"not null"`
+}
+
+func (self *User) GetByEmail(email string) error {
+	if err := Database.Where("email = ?", email).First(&self).Error; err != nil {
+		return err
+	}
+	return nil
+}