feat: allow a user to remove themselves from a team

pkg/models/team_members.go

@@ -79,7 +79,7 @@ func (tm *TeamMember) Create(s *xorm.Session, a web.Auth) (err error) {
 
 // Delete deletes a user from a team
 // @Summary Remove a user from a team
-// @Description Remove a user from a team. This will also revoke any access this user might have via that team.
+// @Description Remove a user from a team. This will also revoke any access this user might have via that team. A user can remove themselves from the team if they are not the last user in the team.
 // @tags team
 // @Produce json
 // @Security JWTKeyAuth

pkg/models/team_members_rights.go

@@ -17,6 +17,7 @@
 package models
 
 import (
+	"code.vikunja.io/api/pkg/user"
 	"code.vikunja.io/web"
 	"xorm.io/xorm"
 )
@@ -28,6 +29,13 @@ func (tm *TeamMember) CanCreate(s *xorm.Session, a web.Auth) (bool, error) {
 
 // CanDelete checks if the user can delete a new team member
 func (tm *TeamMember) CanDelete(s *xorm.Session, a web.Auth) (bool, error) {
+	u, err := user.GetUserByUsername(s, tm.Username)
+	if err != nil {
+		return false, err
+	}
+	if u.ID == a.GetID() {
+		return true, nil
+	}
 	return tm.IsAdmin(s, a)
 }
 

pkg/models/teams.go

@@ -79,7 +79,7 @@ type TeamMember struct {
 }
 
 // TableName makes beautiful table names
-func (TeamMember) TableName() string {
+func (*TeamMember) TableName() string {
 	return "team_members"
 }
 

pkg/swagger/docs.go

@@ -6167,7 +6167,7 @@ const docTemplate = `{
                         "JWTKeyAuth": []
                     }
                 ],
-                "description": "Remove a user from a team. This will also revoke any access this user might have via that team.",
+                "description": "Remove a user from a team. This will also revoke any access this user might have via that team. A user can remove themselves from the team if they are not the last user in the team.",
                 "produces": [
                     "application/json"
                 ],

pkg/swagger/swagger.json

@@ -6158,7 +6158,7 @@
                         "JWTKeyAuth": []
                     }
                 ],
-                "description": "Remove a user from a team. This will also revoke any access this user might have via that team.",
+                "description": "Remove a user from a team. This will also revoke any access this user might have via that team. A user can remove themselves from the team if they are not the last user in the team.",
                 "produces": [
                     "application/json"
                 ],

pkg/swagger/swagger.yaml

@@ -5554,7 +5554,8 @@ paths:
   /teams/{id}/members/{userID}:
     delete:
       description: Remove a user from a team. This will also revoke any access this
-        user might have via that team.
+        user might have via that team. A user can remove themselves from the team
+        if they are not the last user in the team.
       parameters:
       - description: Team ID
         in: path