add followers and followings model

models/migrate.go

@@ -9,5 +9,7 @@ func Migrate() {
 		&UserKeyPair{},
 		&UserInbox{},
 		&RemoteUserPublicKey{},
+		&UserFollower{},
+		&UserFollowing{},
 	)
 }

models/user.go

@@ -8,12 +8,14 @@ import (
 )
 
 type User struct {
-	ID        string      `gorm:"primaryKey"`
-	Profile   UserProfile `gorm:"foreignKey:ID;constraint:OnDelete:CASCADE;"`
-	KeyPair   UserKeyPair `gorm:"foreignKey:ID;constraint:OnDelete:CASCADE;"`
-	Inbox     UserInbox   `gorm:"foreignKey:To;constraint:OnDelete:CASCADE;"`
-	CreatedAt time.Time
-	DeletedAt gorm.DeletedAt
+	ID         string `gorm:"primaryKey"`
+	CreatedAt  time.Time
+	DeletedAt  gorm.DeletedAt
+	Profile    UserProfile     `gorm:"foreignKey:ID;constraint:OnDelete:CASCADE;"`
+	KeyPair    UserKeyPair     `gorm:"foreignKey:ID;constraint:OnDelete:CASCADE;"`
+	Inbox      UserInbox       `gorm:"foreignKey:To;constraint:OnDelete:CASCADE;"`
+	Followers  []UserFollower  `gorm:"foreignKey:ID;constraint:OnDelete:CASCADE;"`
+	Followings []UserFollowing `gorm:"foreignKey:ID;constraint:OnDelete:CASCADE;"`
 }
 
 func (u User) Exists() bool {

models/user_follower.go

@@ -0,0 +1,9 @@
+package models
+
+import "time"
+
+type UserFollower struct {
+	ID        string `gorm:"primaryKey;uniqueIndex:idx_user_follower;"`
+	Follower  string `gorm:"type:text;uniqueIndex:idx_user_follower;"`
+	CreatedAt time.Time
+}

models/user_following.go

@@ -0,0 +1,9 @@
+package models
+
+import "time"
+
+type UserFollowing struct {
+	ID        string `gorm:"primaryKey;uniqueIndex:idx_user_following;"`
+	Following string `gorm:"type:text;uniqueIndex:idx_user_following;"`
+	CreatedAt time.Time
+}