Metadata editor allows defining editor-only metadata

[Calinou]

Godot version

4.0.alpha (c630c20)

System information

Fedora 34, GeForce GTX 1080 (NVIDIA 510.60.02)

Issue description

The new metadata editor allows defining editor-only metadata, but not reading it. This is probably confusing and should be disallowed (although setting editor-only metadata from code should remain allowed).

Steps to reproduce

• Add a node.
• Select the node in the Scene tree dock, go to the inspector and click Add Metadata at the bottom.
• Add metadata with the name _test.
• Notice that the metadata doesn't appear in the inspector.
• Attach a script to the node, with print(has_meta("_test")) in the _ready() function.
• Run the project. Notice that it prints true since the metadata is defined – it's just not visible in the editor.

Minimal reproduction project

test_editor_only_metadata.zip

[KoBeWi]

Here's a relevant code:

godot/editor/editor_inspector.cpp

Lines 3717 to 3723 in c630c20

	if (name == "") {
	error = TTR("Metadata can't be empty.");
	} else if (!name.is_valid_identifier()) {
	error = TTR("Invalid metadata identifier.");
	} else if (object->has_meta(name)) {
	error = TTR("Metadata already exists.");
	}

[Ayush-singla27]

Can i work on this issue? I would like to solve this issue as my first open source contribution !

[Calinou]

Can i work on this issue? I would like to solve this issue as my first open source contribution !

Sure 🙂