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gpeb-filter-by-nested-field.php: Added snippet to allow filtering data via nested entries. #1109

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107 changes: 107 additions & 0 deletions gp-entry-blocks/gpeb-filter-by-nested-field.php
Original file line number Diff line number Diff line change
@@ -0,0 +1,107 @@
<?php
/**
* Gravity Perks // Entry Blocks // Filter values by Nested Entry.
* https://gravitywiz.com/documentation/gravity-forms-entry-blocks/
*
* Instruction Video: https://www.loom.com/share/f795e8b5ef58489794dca96e83fcd230
*
*/
class GPEB_Filter_By_Nested_Entry {

private $parent_form_id;
private $nested_form_id;
private $parent_hidden_field_id;
private $nested_target_field_id;

public function __construct( $config = array() ) {
// check if required parameters are provided
if ( empty( $config['parent_form_id'] ) || empty( $config['nested_form_id'] ) || empty( $config['parent_hidden_field_id'] ) || empty( $config['nested_target_field_id'] ) ) {
return;
}

$this->parent_form_id = rgar( $config, 'parent_form_id' );
$this->nested_form_id = rgar( $config, 'nested_form_id' );
$this->parent_hidden_field_id = rgar( $config, 'parent_hidden_field_id' );
$this->nested_target_field_id = rgar( $config, 'nested_target_field_id' );

add_action( 'init', array( $this, 'init' ) );
}

public function init() {
add_filter( 'gpeb_filter_form', array( $this, 'modify_filter_form' ) );
add_filter( 'gpeb_queryer_entries', array( $this, 'filter_entries_by_nested_value' ), 10, 2 );
}

private function is_applicable_form( $form_id = null ) {
if ( $form_id === null ) {
$form_id = rgget( 'filters_form_id' );
}
return $form_id == $this->parent_form_id;
}

public function modify_filter_form( $form ) {
if ( ! $this->is_applicable_form( $form['id'] ) ) {
return $form;
}

foreach ( $form['fields'] as &$field ) {
if ( $field->id == $this->parent_hidden_field_id ) {
$nested_form_field = GFAPI::get_field( $this->nested_form_id, $this->nested_target_field_id );
if ( ! $nested_form_field ) {
error_log( sprintf( 'Nested form field with ID %d not found in form %d.', $this->nested_target_field_id, $this->nested_form_id ) );
continue;
}
$field = $nested_form_field;
$field->id = $this->parent_hidden_field_id;
}
}

return $form;
}

public function filter_entries_by_nested_value( $entries, $gf_queryer ) {
if ( ! $this->is_applicable_form() ) {
return $entries;
}

$filters = rgget( 'filters' );
if ( ! isset( $filters[ $this->parent_hidden_field_id ] ) ) {
return $entries;
}

$nested_entries = GFAPI::get_entries( $this->nested_form_id, array(
'field_filters' => array(
array(
'key' => $this->nested_target_field_id,
'value' => $filters[ $this->parent_hidden_field_id ],
),
),
) );

if ( is_wp_error( $nested_entries ) ) {
error_log( sprintf( 'Error retrieving nested entries: %s', $nested_entries->get_error_message() ) );
return $entries;
}

$entries = array();
$parent_entry_ids = array();

foreach ( $nested_entries as $nested_entry ) {
$parent_entry_id = rgar( $nested_entry, 'gpnf_entry_parent' );
$entry = GFAPI::get_entry( $parent_entry_id );
if ( ! in_array( $parent_entry_id, $parent_entry_ids ) && $entry && ! is_wp_error( $entry ) ) {
$parent_entry_ids[] = $parent_entry_id;
$entries[] = $entry;
}
}

return $entries;
}
}

new GPEB_Filter_By_Nested_Entry( array(
'parent_form_id' => 4,
'nested_form_id' => 3,
'parent_hidden_field_id' => 10,
'nested_target_field_id' => 4,
) );
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