AffiliateWP – Create Referral from Gravity Forms Dropdown Field

<?php

// -----------------------------------------------------------------------

// CONFIGURATION -- edit these values before activating the snippet.

// -----------------------------------------------------------------------

// The ID of the Gravity Forms form this snippet applies to.

// Find it in Forms > All Forms (the number in the ID column).

define( 'AFFWP_GF_PRACTITIONER_FORM_ID', 5 );

// The Field ID of the dropdown field that holds the practitioner name.

// Find it by opening the form in the GF editor and clicking the dropdown

// field -- the field ID appears in the right-hand panel under "Field ID".

define( 'AFFWP_GF_PRACTITIONER_FIELD_ID', 12 );

// Map each dropdown option label to its AffiliateWP affiliate ID.

// The key must match the dropdown choice label exactly (case-sensitive).

// Find affiliate IDs in AffiliateWP > Affiliates (the ID column).

define( 'AFFWP_GF_PRACTITIONER_MAP', serialize( array(

	'Jane Smith'  => 42,

	'Dr. Johnson' => 87,

	'Mike Torres' => 103,

) ) );

// -----------------------------------------------------------------------

// SNIPPET -- do not edit below this line.

// -----------------------------------------------------------------------

add_action( 'gform_after_submission', 'affwp_gf_create_referral_from_dropdown', 20, 2 );

function affwp_gf_create_referral_from_dropdown( $entry, $form ) {

	if ( absint( $form['id'] ) !== AFFWP_GF_PRACTITIONER_FORM_ID ) {

		return;

	}

	if ( ! function_exists( 'affwp_add_referral' ) ) {

		return;

	}

	$field_id       = AFFWP_GF_PRACTITIONER_FIELD_ID;

	$selected_label = isset( $entry[ $field_id ] ) ? sanitize_text_field( $entry[ $field_id ] ) : '';

	if ( empty( $selected_label ) ) {

		return;

	}

	$affiliate_map = unserialize( AFFWP_GF_PRACTITIONER_MAP );

	if ( ! isset( $affiliate_map[ $selected_label ] ) ) {

		return;

	}

	$affiliate_id = absint( $affiliate_map[ $selected_label ] );

	if ( empty( $affiliate_id ) ) {

		return;

	}

	if ( 'active' !== affwp_get_affiliate_status( $affiliate_id ) ) {

		return;

	}

	$entry_id = absint( $entry['id'] );

	$existing_native = affwp_get_referral_by( 'reference', $entry_id, 'gravityforms' );

	$existing_manual = affwp_get_referral_by( 'reference', $entry_id, 'gravityforms_manual' );

	if ( ! is_wp_error( $existing_native ) || ! is_wp_error( $existing_manual ) ) {

		return;

	}

	$description = isset( $form['title'] ) ? sanitize_text_field( $form['title'] ) : '';

	$referral_id = affwp_add_referral( array(

		'affiliate_id' => $affiliate_id,

		'reference'    => $entry_id,

		'description'  => $description,

		'context'      => 'gravityforms_manual',

		'status'       => 'pending',

	) );

	if ( empty( $referral_id ) ) {

		error_log( sprintf(

			'AffiliateWP: Failed to create referral for entry #%d, affiliate #%d.',

			$entry_id,

			$affiliate_id

		) );

	}

}