New structure (#7)

pkg/models/team_members_rights.go

@@ -0,0 +1,27 @@
+package models
+
+import (
+	"code.vikunja.io/api/pkg/log"
+)
+
+// CanCreate checks if the user can add a new tem member
+func (tm *TeamMember) CanCreate(u *User) bool {
+	return tm.IsAdmin(u)
+}
+
+// CanDelete checks if the user can delete a new team member
+func (tm *TeamMember) CanDelete(u *User) bool {
+	return tm.IsAdmin(u)
+}
+
+// IsAdmin checks if the user is team admin
+func (tm *TeamMember) IsAdmin(u *User) bool {
+	// A user can add a member to a team if he is admin of that team
+	exists, err := x.Where("user_id = ? AND team_id = ? AND admin = ?", u.ID, tm.TeamID, true).
+		Get(&TeamMember{})
+	if err != nil {
+		log.Log.Error("Error occurred during IsAdmin for TeamMember: %s", err)
+		return false
+	}
+	return exists
+}