87744-snippet.php

87744-snippet.php

<?php

class GPPA_Populate_Child_Entries {

	public function __construct( $args = array() ) {

		// do version check in the init to make sure if GF is going to be loaded, it is already loaded
		add_action( 'init', array( $this, 'init' ) );

	}

	public function init() {

		if ( ! is_callable( 'gp_nested_forms' ) ) {
			return;
		}

		add_filter( 'gform_field_value_gpnf_parent_entry_id', array( $this, 'populate_parent_entry_id' ), 10, 2 );
		add_filter( 'gform_pre_render', array( $this, 'load_form_script' ), 10, 2 );

		// Priority 11 so that it will initialize *after* Nested Forms.
		add_filter( 'gform_register_init_scripts', array( $this, 'add_init_script' ), 11, 2 );

		add_action( 'gravityview/edit-entry/render/before', array( $this, 'modify_gv_entry' ) );
		add_action( 'gpeb_before_render_block', array( $this, 'modify_gpeb_entry' ) );

	}

	public function populate_parent_entry_id( $value, $field ) {

		if ( is_callable( 'gravityview_get_context' ) && gravityview_get_context() === 'edit' ) {
			$value = GravityView_frontend::is_single_entry();
		} elseif ( rgget( 'edit_entry' ) ) {
			$value = rgget( 'edit_entry' );
		} else {
			$session = new GPNF_Session( $field->formId );
			$cookie  = $session->get_cookie();
			$value   = rgar( $cookie, 'hash', '' );
		}

		return $value;
	}

	/**
	 * GV passes the full parent entry as field values when rendering the entry for editing. Populate Anything honors the
	 * submitted entry values rather than using the prepopulated values. To avoid this, let's unset those values from the
	 * entry before GV attempts to render the form.
	 *
	 * @param $gv_edit_entry_renderer
	 */
	public function modify_gv_entry( $gv_edit_entry_renderer ) {

		$parent_entry_id_field_id = $this->get_parent_entry_id_field( $gv_edit_entry_renderer->form );
		if ( $parent_entry_id_field_id ) {
			unset( $gv_edit_entry_renderer->entry[ $parent_entry_id_field_id ] );
		}

	}

	/**
	 * Modify the Gravity Forms Entry Block before rendering.
	 *
	 * @param $block
	 */
	public function modify_gpeb_entry( $block ) {
		$form                     = GFAPI::get_form( $block->context['gp-entry-blocks/formId'] );
		$entry                    = GFAPI::get_entry( rgget( 'edit_entry' ) );
		$parent_entry_id_field_id = $this->get_parent_entry_id_field( $form );

		if ( $entry && ! is_wp_error( $entry ) && $parent_entry_id_field_id ) {
			unset( $entry[ $parent_entry_id_field_id ] );
			$entry[ $parent_entry_id_field_id ] = rgget( 'edit_entry' );
			GFAPI::update_entry( $entry );
		}
	}

	public function load_form_script( $form, $is_ajax_enabled ) {

		if ( $this->is_applicable_form( $form ) && ! has_action( 'wp_footer', array( $this, 'output_script' ) ) ) {
			add_action( 'wp_footer', array( $this, 'output_script' ) );
			add_action( 'gform_preview_footer', array( $this, 'output_script' ) );
		}

		return $form;
	}

	public function output_script() {
		?>

		<script type="text/javascript">

			( function( $ ) {

				window.GPPAPopulateChildEntries = function( args ) {

					var self = this;

					// copy all args to current object: (list expected props)
					for( var prop in args ) {
						if( args.hasOwnProperty( prop ) ) {
							self[ prop ] = args[ prop ];
						}
					}

					self.init = function() {

						self.$peidField = $( '#input_{0}_{1}'.gformFormat( self.formId, self.fieldId ) );

						// Make sure cookies are set.
                        gform.addAction( 'gpnf_session_initialized', function() {
                            self.setupPeidField();
                        } );
					};

					self.setupPeidField = function() {

						var gpnfCookie = $.parseJSON( self.getCookie( self.cookieName ));

						if ( ! self.$peidField.val() && gpnfCookie ) {
							self.$peidField
								.val( gpnfCookie.hash )
								.change();
						}

						for ( var i = 0; i < self.nestedFormFieldIds.length; i++ ) {
							window[ 'GPNestedForms_{0}_{1}'.gformFormat( self.formId, self.nestedFormFieldIds[ i ] ) ].viewModel.entries.subscribe( function( entries ) {
								self.$peidField.data( 'lastValue', '' ).change();
							} );
						}

					}

					self.getCookie = function( name ) {

						var cookieArr = document.cookie.split( ';' );

						for( var i = 0; i < cookieArr.length; i++ ) {
							var cookiePair = cookieArr[ i ].split( '=' );
							if ( name == cookiePair[0].trim() ) {
								return decodeURIComponent( cookiePair[1] );
							}
						}

						return null;
					}

					self.init();
				}

			} )( jQuery );

		</script>

		<?php
	}

	public function add_init_script( $form ) {

		if ( ! $this->is_applicable_form( $form ) ) {
			return;
		}

		$args = array(
			'formId'             => $form['id'],
			'fieldId'            => $this->get_parent_entry_id_field( $form ),
			'nestedFormFieldIds' => wp_list_pluck( $this->get_nested_form_fields( $form ), 'id' ),
			'cookieName'         => ( new GPNF_Session( $form['id'] ) )->get_cookie_name(),
		);

		$script = 'new GPPAPopulateChildEntries( ' . json_encode( $args ) . ' );';
		$slug   = implode( '_', array( 'gppa_populate_child_entries', $args['formId'], $args['fieldId'] ) );

		GFFormDisplay::add_init_script( $args['formId'], $slug, GFFormDisplay::ON_PAGE_RENDER, $script );

	}

	public function is_applicable_form( $form ) {
		return $this->get_parent_entry_id_field( $form ) !== false && ! rgempty( $this->get_nested_form_fields( $form ) );
	}

	public function get_parent_entry_id_field( $form ) {
		foreach ( $form['fields'] as $field ) {
			if ( $field->inputName === 'gpnf_parent_entry_id' ) {
				return $field->id;
			}
		}
		return false;
	}

	public function get_nested_form_fields( $form ) {
		return GFAPI::get_fields_by_type( $form, 'form', false );
	}

}

# Configuration

new GPPA_Populate_Child_Entries();


// EXTRA SNIPPET
add_filter( 'gpnf_set_parent_entry_id', function( $parent_entry_id ) {
	if ( rgget( 'edit_entry' ) ) {
		$parent_entry_id = rgget( 'edit_entry' );
	}
	return $parent_entry_id;
} );