Blender Pointerproperty Test

PointerPropertyTest.py

bl_info = {"name": "PointerProperty Test Addon", "category": "User"}

import bpy


class PointerPropertyPanel(bpy.types.Panel):
    """Creates a Panel in the Object properties window"""
    bl_label = "PointerProperty TestPanel"
    bl_idname = "OBJECT_PT_pointerPropTest"
    bl_space_type = 'VIEW_3D'
    bl_region_type = 'UI'
    bl_context = "object"

    @classmethod
    def poll(cls, context):
        return context.object is not None

    def draw(self, context):
        self.layout.prop(context.object, 'test_pointerproperty')
        self.layout.prop(context.object.test_pointerproperty_group, 'test')


class PointerPropertyTestGroup(bpy.types.PropertyGroup):
    test = bpy.props.PointerProperty(type=bpy.types.Object, name="NestedPointer")


def register():
    bpy.utils.register_class(PointerPropertyPanel)
    bpy.utils.register_class(PointerPropertyTestGroup)
    bpy.types.Object.test_pointerproperty = bpy.props.PointerProperty(type=bpy.types.Object)
    bpy.types.Object.test_pointerproperty_group = bpy.props.PointerProperty(type=PointerPropertyTestGroup)


def unregister():
    bpy.utils.unregister_class(PointerPropertyPanel)
    bpy.utils.unregister_class(PointerPropertyTestGroup)