Add a new checkbox in theme options

I’m trying to add a new option to a theme options panel to hide/show the comments links in the theme template files.

I’ve got the option to show up in the panel, but there’s something wrong in that it doesn’t work and there are no php errors. I’ve noted below in Main options code where I’ve added the option as an array and where it is sanitized and validated.

And at the bottom is the php that shows/hides the comments links according to the options setting.

Is this a php logic problem? And ideas?

Main options code:

/**
* Describe the available options
**/
$vertigo_options_template = array(
array(
    'name' => __( 'Accent Color', 'vertigo' ),
    'desc' => __( 'Change the accent color by entering a HEX color number. (ie: <code>EE3322</code>)', 'vertigo' ),
    'id' => 'accent_color',
    'std' => 'ee3322',
    'type' => 'colorpicker'
),

array(
    'name' => __( 'Font', 'vertigo' ),
    'desc' => __( 'Enable Hitchcock custom font (Note: this font only supports basic Latin uppercase letters, numerals, and some punctuation.)', 'vertigo' ),
    'id' => 'vertigo_font',
    'std' => ( '1' == get_option( 'lang_id' ) ) ? 'true' : 'false',
    'type' => 'checkbox'
),  


/** My new Option  **/

array(
    'name' => __( 'Comments', 'vertigo' ),
    'desc' => __( 'Disable comment links)', 'vertigo' ),
    'id' => 'disable_comments_link',
    'std' => ( '1' == get_option( 'lang_id' ) ) ? 'true' : 'false',
    'type' => 'checkbox'
),  
);


/**
* Calculate default option values
*
* @return array
**/
function vertigo_get_default_options() {
global $vertigo_options_template;
$default_options = array();

foreach ( $vertigo_options_template as $option )
    $default_options[$option['id']] = $option['std'];

return $default_options;
}

/**
* Create the options form
**/
function vertigo_theme_options_do_page() {
global $vertigo_options_template;

if ( ! isset( $_REQUEST['settings-updated'] ) )
    $_REQUEST['settings-updated'] = false;
?>

<div class="wrap">

    <?php screen_icon(); echo "<h2>" . get_current_theme() . ' ' . __( 'Theme Options', 'vertigo' ) . "</h2>"; ?>

    <?php if ( false !== $_REQUEST['settings-updated'] ) : ?>
    <div class="updated fade"><p><strong><?php _e( 'Options saved.', 'vertigo' ); ?></strong></p></div>
    <?php endif; ?>

    <form method="post" action="options.php">
        <?php settings_fields( 'vertigo_options' ); ?>
        <?php $vertigo_options = vertigo_get_theme_options(); ?>

        <table class="form-table">

        <?php foreach ( $vertigo_options_template as $option ) {
            // Use default value if no option exists
            $value = ( isset ( $vertigo_options[$option['id']] ) && !empty( $vertigo_options[$option['id']] ) ? $vertigo_options[$option['id']] : $option['std'] );
        ?>
            <tr valign="top">
                <th scope="row">
                    <?php echo $option['name']; ?>
                </th>
                <td>
                <?php switch ( $option['type'] ) {
                    case 'colorpicker':
                ?>
                    <input type="text" name="vertigo_theme_options[<?php echo esc_attr( $option['id'] ); ?>]" id="<?php echo esc_attr( $option['id'] ); ?>" value="<?php echo esc_attr( $value ); ?>" class="color { pickerPosition:'right' }" />
                <?php break;

                case 'checkbox':
                ?>
                    <input type="checkbox" name="vertigo_theme_options[<?php echo esc_attr( $option['id'] ); ?>]" id="<?php echo esc_attr( $option['id'] ); ?>" value="true" <?php echo ( 'true' == $value ) ? 'checked="checked"' : ''; ?> />
                <?php break;

                    default:
                        break;
                } // END switch ?>

                    <label class="description" for="<?php echo esc_attr( $option['id'] ); ?>">
                        <?php echo $option['desc']; ?>
                        <?php if ( 'vertigo_font' == $option['id'] ) { ?>
                            <img src="<?php echo get_template_directory_uri(); ?>/inc/images/hitchcock.gif" alt="Hitchcock" id="hitchcock-sample"/>
                        <?php } ?>
                    </label> 

                </td>
            </tr>

        <?php } // END foreach ?>
        </table>

        <p class="submit">
            <?php submit_button( __( 'Save Options', 'vertigo' ), 'primary', 'submit', false ); ?>
            <?php submit_button( __( 'Reset Options', 'vertigo' ), 'secondary', 'vertigo_theme_options[reset]', false, array( 'id' => 'reset' ) ); ?>
        </p>

    </form>

</div><!-- .form-wrap -->

<?php
}

/**
* Sanitize and validate form input
*
* @param array options
* @return array sanitized options
**/
function vertigo_theme_options_validate( $input ) {
global $vertigo_options_template;
$defaults = vertigo_get_default_options();

// Check accent color input format
// Valid = hexadecimal 3 or 6 digits
$accent_color = preg_replace( '/[^0-9a-fA-F]/', '', $input['accent_color'] );
if ( 6 == strlen( $accent_color ) || 3 == strlen( $accent_color ) )
    $input['accent_color'] = $accent_color;
else
    $input['accent_color'] = $defaults['accent_color'];

// Check that Vertigo font checkbox value is either true or false
if ( ! isset( $input['vertigo_font'] ) )
$input['vertigo_font'] = ( $input['vertigo_font'] == 'true' ? 'true' : 'false' );

// My New Option: Check that Disable Comment Links checkbox value is either true or false
if ( ! isset( $input['disable_comments_link'] ) )
$input['disable_comments_link'] = ( $input['disable_comments_link'] == 'true' ? 'true' : 'false' );

// Reset to default options
if ( ! empty( $input['reset'] ) ) {
    $defaults = vertigo_get_default_options();
    foreach ( $input as $field => $value ) {
        if ( isset( $defaults[$field] ) )
            $input[$field] = $defaults[$field];
        else
            unset( $input[$field] );
    }
}

return $input;
}

And I’m using this in my template files to show/hide the comments template:

<?php if ( 'true' == $vertigo_theme_options['disable_comments_link'] ) { ?> 
<?php comments_template( '', true ); ?>
<?php } ?>

This is what the options look like in the DB called vertigo_theme_options:

a:3:{s:12:"accent_color";s:6:"EE3322";s:12:"vertigo_font";s:4:"true";s:21:"disable_comments_link";s:5:"true";}

Edit 7/25/11: This works in template file; need to call options first:

<?php $vertigo_theme_options = get_option( 'vertigo_theme_options' ); ?>

<?php if ( 'false' == $vertigo_theme_options['disable_comments_link'] ) { ?> 
<?php comments_template( '', true ); ?>
<?php } ?>