New structure (#7)

pkg/models/namespace_users_create.go

@@ -0,0 +1,43 @@
+package models
+
+// Create creates a new namespace <-> user relation
+func (un *NamespaceUser) Create(u *User) (err error) {
+
+	// Reset the id
+	un.ID = 0
+
+	// Check if the right is valid
+	if err := un.Right.isValid(); err != nil {
+		return err
+	}
+
+	// Check if the namespace exists
+	l, err := GetNamespaceByID(un.NamespaceID)
+	if err != nil {
+		return
+	}
+
+	// Check if the user exists
+	if _, err = GetUserByID(un.UserID); err != nil {
+		return err
+	}
+
+	// Check if the user already has access or is owner of that namespace
+	// We explicitly DO NOT check for teams here
+	if l.OwnerID == un.UserID {
+		return ErrUserAlreadyHasNamespaceAccess{UserID: un.UserID, NamespaceID: un.NamespaceID}
+	}
+
+	exist, err := x.Where("namespace_id = ? AND user_id = ?", un.NamespaceID, un.UserID).Get(&NamespaceUser{})
+	if err != nil {
+		return
+	}
+	if exist {
+		return ErrUserAlreadyHasNamespaceAccess{UserID: un.UserID, NamespaceID: un.NamespaceID}
+	}
+
+	// Insert user <-> namespace relation
+	_, err = x.Insert(un)
+
+	return
+}