From c64f3ce904368140b22950bbd471fe59b6dfbd0e Mon Sep 17 00:00:00 2001
From: Marius Orcsik <marius@habarnam.ro>
Date: Sat, 28 Nov 2020 13:39:14 +0100
Subject: [PATCH] Add extra OnPlace/OnProfile/OnRelationship/OnTombstone
 functions

---
 place.go        | 10 ++++++++++
 profile.go      | 10 ++++++++++
 relationship.go | 10 ++++++++++
 tombstone.go    | 10 ++++++++++
 4 files changed, 40 insertions(+)

diff --git a/place.go b/place.go
index 1b2af50..663b92a 100644
--- a/place.go
+++ b/place.go
@@ -228,3 +228,13 @@ func ToPlace(it Item) (*Place, error) {
 	}
 	return nil, fmt.Errorf("unable to convert %q", it.GetType())
 }
+
+type withPlaceFn func (*Place) error
+
+func OnPlace(it Item, fn withPlaceFn) error {
+	ob, err  := ToPlace(it)
+	if err != nil {
+		return err
+	}
+	return fn(ob)
+}
diff --git a/profile.go b/profile.go
index 4d3fc5f..a88f37d 100644
--- a/profile.go
+++ b/profile.go
@@ -196,3 +196,13 @@ func ToProfile(it Item) (*Profile, error) {
 	}
 	return nil, fmt.Errorf("unable to convert %q", it.GetType())
 }
+
+type withProfileFn func (*Profile) error
+
+func OnProfile(it Item, fn withProfileFn) error {
+	ob, err  := ToProfile(it)
+	if err != nil {
+		return err
+	}
+	return fn(ob)
+}
diff --git a/relationship.go b/relationship.go
index 6b43fa5..6b8fe10 100644
--- a/relationship.go
+++ b/relationship.go
@@ -211,3 +211,13 @@ func ToRelationship(it Item) (*Relationship, error) {
 	}
 	return nil, fmt.Errorf("unable to convert %q", it.GetType())
 }
+
+type withRelationshipFn func (*Relationship) error
+
+func OnRelationship(it Item, fn withRelationshipFn) error {
+	ob, err  := ToRelationship(it)
+	if err != nil {
+		return err
+	}
+	return fn(ob)
+}
diff --git a/tombstone.go b/tombstone.go
index 13d87f1..e142a3c 100644
--- a/tombstone.go
+++ b/tombstone.go
@@ -203,3 +203,13 @@ func ToTombstone(it Item) (*Tombstone, error) {
 	}
 	return nil, fmt.Errorf("unable to convert %q", it.GetType())
 }
+
+type withTombstoneFn func (*Tombstone) error
+
+func OnTombstone(it Item, fn withTombstoneFn) error {
+	ob, err  := ToTombstone(it)
+	if err != nil {
+		return err
+	}
+	return fn(ob)
+}