众所周知，Wordpress的头像由于国际化，时不时的抽风。尽管相关修改头像源的插件有很多，如WPOPT、文派叶子等，但是由于PIX主题后台可以设置，所以自我感觉还是使用自带的比较好。不过让人无奈的是，貌似极客族不能用，loli只显示神秘游客形象，cravatar倒是能用但是太丑，像一个按钮，因此我决定改造一下，在后台设置中加入WeAvatar头像源。

先看效果：

改造步骤如下：

1、打开pix/inc/assets/codestar-framework/options/option.php后台文件，大概72行找到

    array(
	    'id'         => 'gravatar_source',
	    'type'       => 'radio',
	    'title'      => 'Gravatar头像源',
	    'inline'  => true,
	    'options'    => array(
	    'geekzu'    => '极客族', 
            'loli'    => 'loli', 		
            'cravatar'    => 'cravatar',		
	    ),
	    'default'    => 'geekzu',
	  ),

修改如下加入weavatar头像源并设为默认：

    array(
	    'id'         => 'gravatar_source',
	    'type'       => 'radio',
	    'title'      => 'Gravatar头像源',
	    'inline'  => true,
	    'options'    => array(
	    'weavatar'    => 'weavatar',
	    'geekzu'    => '极客族', 
            'loli'    => 'loli', 		
            'cravatar'    => 'cravatar',		
	    ),
	    'default'    => 'weavatar',
	  ),

2、打开/pix/inc/opt.php，大概90行找到：

		$avatar_source = get_op('gravatar_source','geekzu');

		$avatar_array = array(
			'geekzu'    => 'sdn.geekzu.org', 
			'loli'    => 'gravatar.loli.net', 	 		
			'cravatar'    => 'cravatar.cn',
		);

修改为：

		$avatar_source = get_op('gravatar_source','weavatar');

		$avatar_array = array(
		    'weavatar'    => 'weavatar.com',
			'geekzu'    => 'sdn.geekzu.org', 
			'loli'    => 'gravatar.loli.net', 	 		
			'cravatar'    => 'cravatar.cn',
		);

3、打开pix/inc/pix-comment.php，找到大概270行：

// ajax获取评论头像
add_action('wp_ajax_nopriv_ajax_avatar_get', 'ajax_avatar_get');
add_action('wp_ajax_ajax_avatar_get', 'ajax_avatar_get');
function ajax_avatar_get() {
    $email = isset($_POST['email'])? $_POST['email'] : false;
    $name = isset($_POST['name'])? $_POST['name'] : '神秘访客';
    if ($email) {
        $res = get_avatar_url($email, array('size' => 50));
        $avatar = preg_replace("/http:\/\/(www|\d).geekzu.com\/avatar\//", "https://sdn.geekzu.org/avatar/", $res);
        echo json_encode(array('avatar' => $avatar, 'name' => $name? $name : '神秘访客'));
        exit();
    } else {
        return;
    }
}

替换geekzu修改为：

// ajax获取评论头像
add_action('wp_ajax_nopriv_ajax_avatar_get', 'ajax_avatar_get');
add_action('wp_ajax_ajax_avatar_get', 'ajax_avatar_get');
function ajax_avatar_get() {
    $email = isset($_POST['email'])? $_POST['email'] : false;
    $name = isset($_POST['name'])? $_POST['name'] : '神秘访客';
    if ($email) {
        $res = get_avatar_url($email, array('size' => 50));
        $avatar = preg_replace("/http:\/\/(www|\d).weavatar.com\/avatar\//", "https://weavatar.com/avatar/", $res);
        echo json_encode(array('avatar' => $avatar, 'name' => $name? $name : '神秘访客'));
        exit();
    } else {
        return;
    }
}

大功告成！