search-field-select.php

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<?php
/**
 * Display the search SELECT input field
 *
 * @file class-search-widget.php See for usage
 */

$gravityview_view = GravityView_View::getInstance();
$view_id = $gravityview_view->getViewId();
$search_field = $gravityview_view->search_field;

// Make sure that there are choices to display
if( empty( $search_field['choices'] ) ) {
    gravityview()->log->debug( 'search-field-select.php - No choices for field' );
    return;
}

if( is_array( $search_field['value'] ) ) {
    gravityview()->log->debug( 'search-field-select.php - Array values passed; using first value.' );
    $search_field['value'] = reset( $search_field['value'] );
}

$gf_field = GFAPI::get_field( $gravityview_view->getForm(), $search_field['key'] );
$placeholder = \GV\Utils::get( $gf_field, 'placeholder', '' );

/**
 * @filter `gravityview/extension/search/select_default` Define the text for the default option in a select (multi or single dropdown)
 * @since 1.16.4
 * @param string $default_option Default: `&mdash;` (—)
 * @param string $field_type Field type: "select" or "multiselect"
 */
$default_option = apply_filters('gravityview/extension/search/select_default', ( '' === $placeholder ? '&mdash;' : $placeholder ), 'select' );

?>
<div class="gv-search-box gv-search-field-select">
    <?php if( ! gv_empty( $search_field['label'], false, false ) ) { ?>
        <label for="search-box-<?php echo esc_attr( $search_field['name'] ); ?>"><?php echo esc_html( $search_field['label'] ); ?></label>
    <?php } ?>
    <p>
        <select name="<?php echo esc_attr( $search_field['name'] ); ?>" id="search-box-<?php echo esc_attr( $search_field['name'] ); ?>">
            <option value="" <?php gv_selected( '', $search_field['value'], true ); ?>><?php echo esc_html( $default_option ); ?></option>
            <?php
            foreach( $search_field['choices'] as $choice ) { ?>
                <?php if ( is_array( $choice['value'] ) ) { ?>
                    <optgroup label="<?php echo esc_attr( $choice['text'] ); ?>">
                        <?php foreach ( $choice['value'] as $subchoice ): ?>
                            <option value="<?php echo esc_attr( $subchoice['value'] ); ?>"><?php echo esc_html( $subchoice['text'] ); ?></option>
                        <?php endforeach; ?>
                    </optgroup>
                <?php } else { ?>
                    <option value="<?php echo esc_attr( $choice['value'] ); ?>" <?php gv_selected( esc_attr( $choice['value'] ), esc_attr( $search_field['value'] ), true ); ?>><?php echo esc_html( $choice['text'] ); ?></option>
                <?php } ?>
            <?php } ?>
        </select>
    </p>
</div>