REST API Can’t update `null` value on nested field group

• deoaqlirayyan

• July 29, 2023 at 11:49 pm

Hello,
I have an issue that i can’t update my field (number) value to null when it’s placed on a nested group.

It’s works fine if the field placed as a root field. But when i placed it to a nested group, the previous value won’t change.

This is how my field group looks like

• Sections (Group)
  • Section One (Group)
    • Offset (Group)
      • Top (Number)

How To Reproduce
– Create a field group with this structure:
[
{
"key": "group_64c5c90bc6005",
"title": "Test Post Fields",
"fields": [
{
"key": "field_64c5ca1e7f880",
"label": "Sections",
"name": "sections",
"aria-label": "",
"type": "group",
"instructions": "",
"required": 0,
"conditional_logic": 0,
"wrapper": {
"width": "",
"class": "",
"id": ""
},
"acfe_save_meta": 0,
"layout": "block",
"acfe_seamless_style": 0,
"acfe_group_modal": 0,
"acfe_settings": "",
"acfe_permissions": "",
"sub_fields": [
{
"key": "field_64c5ca317f881",
"label": "Section One",
"name": "section_one",
"aria-label": "",
"type": "group",
"instructions": "",
"required": 0,
"conditional_logic": 0,
"wrapper": {
"width": "",
"class": "",
"id": ""
},
"acfe_save_meta": 0,
"layout": "block",
"acfe_seamless_style": 0,
"acfe_group_modal": 0,
"acfe_settings": "",
"sub_fields": [
{
"key": "field_64c5ca3e7f882",
"label": "Offset",
"name": "offset",
"aria-label": "",
"type": "group",
"instructions": "",
"required": 0,
"conditional_logic": 0,
"wrapper": {
"width": "",
"class": "",
"id": ""
},
"acfe_save_meta": 0,
"layout": "block",
"acfe_seamless_style": 0,
"acfe_group_modal": 0,
"acfe_settings": "",
"sub_fields": [
{
"key": "field_64c5ca527f883",
"label": "Top",
"name": "top",
"aria-label": "",
"type": "number",
"instructions": "",
"required": 0,
"conditional_logic": 0,
"wrapper": {
"width": "",
"class": "",
"id": ""
},
"acfe_save_meta": 0,
"default_value": "",
"acfe_settings": "",
"acfe_validate": "",
"min": "",
"max": "",
"placeholder": "",
"step": "",
"prepend": "",
"append": ""
}
],
"acfe_group_modal_close": 0,
"acfe_group_modal_button": "",
"acfe_group_modal_size": "large"
}
],
"acfe_group_modal_close": 0,
"acfe_group_modal_button": "",
"acfe_group_modal_size": "large"
}
],
"acfe_group_modal_close": 0,
"acfe_group_modal_button": "",
"acfe_group_modal_size": "large"
}
],
"location": [
[
{
"param": "post_type",
"operator": "==",
"value": "post"
}
]
],
"menu_order": 0,
"position": "normal",
"style": "default",
"label_placement": "left",
"instruction_placement": "label",
"hide_on_screen": "",
"active": true,
"description": "",
"show_in_rest": 1,
"acfe_display_title": "",
"acfe_autosync": "",
"acfe_permissions": "",
"acfe_form": 1,
"acfe_meta": "",
"acfe_note": ""
}
]

– Update value via REST API (using postman or similar tools)
METHOD: PUT
ENDPOINT: /posts
BODY:
{
"acf" : {
"sections": {
"section_one": {
"offset": {
"top": 100
}
}
}
}
}

– Check the current value, then you will see the value is 100
– Then try to update the value again with this request body
{
"acf" : {
"sections": {
"section_one": {
"offset": {
"top": null
}
}
}
}
}
– Check current value, then you will see the value still 100

I Hope that’s clear enough.

Thank you