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<?php
if ( ! class_exists( 'GFForms' ) ) {
die();
}
class GF_Field_Coupon extends GF_Field {
public $type = 'coupon';
/**
* Return the field title, for use in the form editor.
*
* @return string
*/
public function get_form_editor_field_title() {
return __( 'Coupon', 'gravityformscoupon' );
}
/**
* Assign the Coupon button to the Pricing Fields group.
*
* @return array
*/
public function get_form_editor_button() {
return array(
'group' => 'pricing_fields',
'text' => $this->get_form_editor_field_title()
);
}
/**
* Return the settings which should be available on the field in the form editor.
*
* @return array
*/
function get_form_editor_field_settings() {
return array(
'conditional_logic_field_setting',
'label_setting',
'admin_label_setting',
'css_class_setting',
'description_setting',
'placeholder_setting',
'visibility_setting',
'rules_setting',
'error_message_setting',
);
}
/**
* Enable support for using the field with conditional logic.
*
* @return bool
*/
public function is_conditional_logic_supported() {
return true;
}
/**
* Returns the input ID to be assigned to the field label for attribute.
*
* @param array $form The form object currently being processed.
*
* @return string
*/
public function get_first_input_id( $form ) {
return sprintf( 'gf_coupon_code_%s', $form['id'] );
}
/**
* Returns the fields inner markup.
*
* @param array $form The form object currently being processed.
* @param string $value The field value from the $_POST or the resumed incomplete submission. Not currently used.
* @param null $entry
*
* @return string
*/
public function get_field_input( $form, $value = '', $entry = null ) {
$form_id = $form['id'];
$is_entry_detail = $this->is_entry_detail();
$id = (int) $this->id;
if ( $is_entry_detail ) {
$input = "<input type='hidden' id='input_{$id}' name='input_{$id}' value='{$value}' />";
return $input . '<br/>' . esc_html__( 'Coupon fields are not editable', 'gravityformscoupons' );
}
$disabled_text = $this->is_form_editor() ? 'disabled="disabled"' : '';
$logic_event = $this->get_conditional_logic_event( 'change' );
$placeholder_attribute = $this->get_field_placeholder_attribute();
$coupons_detail = rgpost( "gf_coupons_{$form_id}" );
$coupon_codes = empty( $coupons_detail ) ? '' : rgpost( "input_{$id}" );
$input = "<div class='ginput_container' id='gf_coupons_container_{$form_id}'>" .
"<input id='gf_coupon_code_{$form_id}' class='gf_coupon_code' onkeyup='DisableApplyButton({$form_id});' onchange='DisableApplyButton({$form_id});' onpaste='setTimeout(function(){DisableApplyButton({$form_id});}, 50);' type='text' {$disabled_text} {$placeholder_attribute} " . $this->get_tabindex() . '/>' .
"<input type='button' disabled='disabled' onclick='ApplyCouponCode({$form_id});' value='" . esc_attr__( 'Apply', 'gravityformscoupons' ) . "' id='gf_coupon_button' class='button' {$disabled_text} " . $this->get_tabindex() . '/> ' .
"<img style='display:none;' id='gf_coupon_spinner' src='" . gf_coupons()->get_base_url() . "/images/spinner.gif' alt='" . esc_attr__( 'please wait', 'gravityformscoupons' ) . "'/>" .
"<div id='gf_coupon_info'></div>" .
"<input type='hidden' id='gf_coupon_codes_{$form_id}' name='input_{$id}' value='" . esc_attr( $coupon_codes ) . "' {$logic_event} />" .
"<input type='hidden' id='gf_total_no_discount_{$form_id}'/>" .
"<input type='hidden' id='gf_coupons_{$form_id}' name='gf_coupons_{$form_id}' value='" . esc_attr( $coupons_detail ) . "' />" .
"</div>";
return $input;
}
/**
* Re-validate the coupon codes, ensuring the coupons usage count or status hasn't changed since the coupon was first applied.
*
* @param string $value The field value from the $_POST
* @param array $form The form object currently being processed.
*/
public function validate( $value, $form ) {
// if there are no coupon codes to validate, abort
if ( empty( $value ) ) {
return;
}
$coupon_codes = array_map( 'trim', explode( ',', $value ) );
$existing_coupon_codes = '';
$message = '';
foreach ( $coupon_codes as $coupon_code ) {
$feed = gf_coupons()->get_config( $form, $coupon_code );
if ( ! $feed ) {
$message = sprintf( esc_html__( 'Coupon code: %s is invalid.', 'gravityformscoupons' ), $coupon_code );
break;
}
$can_apply = gf_coupons()->can_apply_coupon( $coupon_code, $existing_coupon_codes, $feed, $message, $form );
if ( $can_apply ) {
$existing_coupon_codes .= empty( $existing_coupon_codes ) ? $coupon_code : $coupon_code . ',' . $existing_coupon_codes;
} else {
break;
}
}
if ( ! empty( $message ) ) {
$this->failed_validation = true;
$this->validation_message = $message;
}
}
/**
* Include the gform_form_editor_can_field_be_added script on the form editor page.
*
* @return string
*/
public function get_form_editor_inline_script_on_page_render() {
return "
gform.addFilter('gform_form_editor_can_field_be_added', function (canFieldBeAdded, type) {
if (type == 'coupon') {
if (GetFieldsByType(['product']).length <= 0) {
alert(" . json_encode( esc_html__( 'You must add a Product field to the form', 'gravityformscoupons' ) ) . ");
return false;
} else if (GetFieldsByType(['total']).length <= 0) {
alert(" . json_encode( esc_html__( 'You must add a Total field to the form', 'gravityformscoupons' ) ) . ");
return false;
} else if (GetFieldsByType(['coupon']).length) {
alert(" . json_encode( esc_html__( 'Only one Coupon field can be added to the form', 'gravityformscoupons' ) ) . ");
return false;
}
}
return canFieldBeAdded;
});";
}
/**
* Return the formatted entry value.
*
* @param array $entry The entry currently being processed.
* @param string $input_id The field or input ID.
* @param bool|false $use_text
* @param bool|false $is_csv
*
* @return string
*/
public function get_value_export( $entry, $input_id = '', $use_text = false, $is_csv = false ) {
if ( empty( $input_id ) ) {
$input_id = $this->id;
}
$value = rgar( $entry, $input_id );
if ( ! empty( $value ) ) {
$form = GFAPI::get_form( $entry['form_id'] );
$product_info = GFCommon::get_product_fields( $form, $entry );
$coupon_codes = array_map( 'trim', explode( ',', $value ) );
$coupons = array();
foreach ( $coupon_codes as $code ) {
$price = GFCommon::to_money( $product_info['products'][ $code ]['price'], rgar( $entry, 'currency' ) );
$coupons[] = sprintf( '%s (%s: %s)', $product_info['products'][ $code ]['name'], $code, $price );
}
$value = implode( ', ', $coupons );
}
return $value;
}
}
GF_Fields::register( new GF_Field_Coupon() );