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Migrated repeater fields visible in front end, but not when editing block
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I submitted a ticket to what now seems to be WP Engine support to no avail, so will post here just in case!
I have a block called Link List, which well is just a list of links. It was a repeater for manually entered link items but it was updated to include existing site content as well. I seem to have successfully migrated the fields in the old repeater to the fields in the updated repeater, I can see them in block preview and when viewing the block on the front end. However, when editing the block, there are no populated fields to edit.
Old json – repeater field with three subfields (subhead, url, short_description):
{
"key": "field_64837282e5ad9",
"label": "Old Link List Items",
"name": "items",
"aria-label": "",
"type": "repeater",
"instructions": "",
"required": 0,
"conditional_logic": 0,
"wrapper": {
"width": "",
"class": "",
"id": ""
},
"layout": "block",
"pagination": 0,
"min": 0,
"max": 0,
"button_label": "Add Row",
"rows_per_page": 20,
"sub_fields": [
{
"key": "field_6483729ae5ada",
"label": "Old Subhead",
"name": "subhead",
"aria-label": "",
"type": "text",
"instructions": "",
"required": 1,
"conditional_logic": 0,
"wrapper": {
"width": "",
"class": "",
"id": ""
},
"default_value": "",
"maxlength": "",
"placeholder": "",
"prepend": "",
"append": "",
"parent_repeater": "field_64837282e5ad9"
},
{
"key": "field_64837357e5adc",
"label": "Old URL",
"name": "url",
"aria-label": "",
"type": "url",
"instructions": "",
"required": 0,
"conditional_logic": 0,
"wrapper": {
"width": "",
"class": "",
"id": ""
},
"default_value": "",
"placeholder": "",
"parent_repeater": "field_64837282e5ad9"
},
{
"key": "field_648372afe5adb",
"label": "Old Short Description",
"name": "short_description",
"aria-label": "",
"type": "textarea",
"instructions": "",
"required": 0,
"conditional_logic": 0,
"wrapper": {
"width": "",
"class": "",
"id": ""
},
"default_value": "",
"maxlength": 155,
"rows": "",
"placeholder": "",
"new_lines": "",
"parent_repeater": "field_64837282e5ad9"
}
]
},
New json – repeater with three sub fields (entry_method, custom_item, existing_item), the custom_item containing the original three item fields (subhead, url, short_description) from above.
{
"key": "field_66b4df4663782",
"label": "Link List Items",
"name": "link_list_items",
"aria-label": "",
"type": "repeater",
"instructions": "",
"required": 0,
"conditional_logic": 0,
"wrapper": {
"width": "",
"class": "",
"id": ""
},
"layout": "row",
"pagination": 0,
"min": 0,
"max": 0,
"collapsed": "",
"button_label": "Add Link Item",
"rows_per_page": 20,
"sub_fields": [
{
"key": "field_66b11540e682f",
"label": "Entry Method",
"name": "entry_method",
"aria-label": "",
"type": "select",
"instructions": "",
"required": 0,
"conditional_logic": 0,
"wrapper": {
"width": "",
"class": "",
"id": ""
},
"choices": {
"custom": "Custom URL",
"existing": "Existing Page Content"
},
"default_value": "custom",
"return_format": "value",
"multiple": 0,
"allow_null": 0,
"ui": 0,
"ajax": 0,
"placeholder": "",
"parent_repeater": "field_66b4df4663782"
},
{
"key": "field_6758a9a91df40",
"label": "Custom Link List Item",
"name": "custom_item",
"aria-label": "",
"type": "group",
"instructions": "",
"required": 0,
"conditional_logic": [
[
{
"field": "field_66b11540e682f",
"operator": "==",
"value": "custom"
}
]
],
"wrapper": {
"width": "",
"class": "",
"id": ""
},
"layout": "block",
"sub_fields": [
{
"key": "field_6758a8101df3e",
"label": "Subhead",
"name": "subhead",
"aria-label": "",
"type": "text",
"instructions": "",
"required": 1,
"conditional_logic": 0,
"wrapper": {
"width": "",
"class": "",
"id": ""
},
"default_value": "",
"maxlength": "",
"placeholder": "",
"prepend": "",
"append": ""
},
{
"key": "field_66b4e13bd37ad",
"label": "URL",
"name": "url",
"aria-label": "",
"type": "url",
"instructions": "",
"required": 1,
"conditional_logic": 0,
"wrapper": {
"width": "",
"class": "",
"id": ""
},
"default_value": "",
"placeholder": ""
},
{
"key": "field_66b4e13bd37ae",
"label": "Short Description",
"name": "short_description",
"aria-label": "",
"type": "textarea",
"instructions": "",
"required": 0,
"conditional_logic": 0,
"wrapper": {
"width": "",
"class": "",
"id": ""
},
"default_value": "",
"maxlength": 155,
"rows": "",
"placeholder": "",
"new_lines": ""
}
],
"parent_repeater": "field_66b4df4663782"
},
{
"key": "field_66b1161ae6830",
"label": "Existing Link List Item",
"name": "existing_item",
"aria-label": "",
"type": "relationship",
"instructions": "",
"required": 0,
"conditional_logic": [
[
{
"field": "field_66b11540e682f",
"operator": "==",
"value": "existing"
}
]
],
"wrapper": {
"width": "",
"class": "",
"id": ""
},
"post_type": "",
"post_status": "",
"taxonomy": "",
"filters": [
"search",
"post_type",
"taxonomy"
],
"return_format": "id",
"min": "",
"max": 1,
"elements": "",
"bidirectional": 0,
"bidirectional_target": [],
"parent_repeater": "field_66b4df4663782"
}
]
}
PHP – migrating the old item fields into new Link List Items > Custom Item
$old_items = get_field('items') ?: [];
$link_list_items = get_field('link_list_items', $post_id) ?: [];if ($old_items) {
foreach ($old_items as $old_item) {
$is_duplicate = false;
foreach ($link_list_items as $existing_item) {
if (
$existing_item['entry_method'] === 'custom' &&
$existing_item['custom_item']['subhead'] === $old_item['subhead'] &&
$existing_item['custom_item']['url'] === $old_item['url'] &&
$existing_item['custom_item']['short_description'] === $old_item['short_description']
) {
echo '<p>Duplicate found:</p>'; var_dump($old_item); echo '';
$is_duplicate = true;
break;
}
}// If not a duplicate, add to the new structure
if (!$is_duplicate) {
echo '<p>Adding new item:</p>'; var_dump($old_item); echo '';
$link_list_items[] = [
'entry_method' => 'custom',
'custom_item' => [
'subhead' => $old_item['subhead'],
'url' => $old_item['url'],
'short_description' => $old_item['short_description'],
],
'existing_item' => null,
];
}
}echo '<p>New link_list_items array to update:</p>
'; var_dump($link_list_items); echo '';
// Update the field with the current + migrated items
$update_result = update_field('link_list_items', $link_list_items, $post_id);// // Check if the update was successful
if ($update_result) {
echo '<p>Field updated successfully.</p>';
} else {
echo '<p>Failed to update field.</p>';
}
}
Just to reiterate, after running the migration script I can now see the old field data in the new fields on the front end, but if I edit the Link List block it’s as if there is no content.
Any help troubleshooting this would be appreciated, thanks!
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Full json for the link list field group, and php/html attached. Not sure why the php format in my post came out like that.
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