我将尽力解释我在这里要做的事情。
我为我的wordpress创建了一个登录表单，允许用户直接从主页登录，它包括登录的个人资料的Avatar。这是我想出来的代码。
<div id="loginDiv">
<!-- If User Is Logged In Display This -->
<?php if (is_user_logged_in()) { ?>
Welcome <strong><?php echo $user_identity ?></strong>.
<?php echo get_avatar($id_or_email,$size='100'); ?>
<form name="loginform" id="loginform" action="<?php echo wp_logout_url(); ?>" method="post">
<input type="submit" name="wp-submit" id="wp-submit" value="LOG OUT" />
<a href="http://www.bignotch.com/wp-admin/profile.php">EDIT YOUR PROFILE</a>
<input type="hidden" name="redirect_to" value="<?php bloginfo('url'); ?>" />
</form>
<!-- If User Is NOT Logged In Display This -->
<? } else { ?>
<form name="loginform" id="loginform" action="<?php bloginfo('url'); ?>/wp-login.php" method="post">
<label for="log">Username</label> <input type="text" name="log" id="user_login" class="input" value="" size="20" tabindex="10" /></p>
<label for="pwd">Password</label> <input type="password" name="pwd" id="user_pass" class="input" value="" size="20" tabindex="20" /></p>
<input type="submit" name="wp-submit" id="wp-submit" value="LOG IN" /> <input type="button" value="SIGNUP" onClick="parent.location='<?php bloginfo('url'); ?>/wp-login.php?action=register'" />
<a href="<?php bloginfo('url'); ?>/wp-login.php?action=lostpassword">Lost your password?</a>
<input type="hidden" name="redirect_to" value="<?php bloginfo('url'); ?>/members" />
<input type="hidden" name="testcookie" value="1" />
</form>
<? } ?></div>
这里的问题是，wordpress要求用户去"gravatar"网站来创建一个头像。这对我没有好处。所以，我安装了简单本地头像插件，允许用户上传自己的用户照片，但我不知道如何才能让该图像显示在我的自定义登录表单中。
我用来在登录表单中显示头像的代码部分是:<?php echo get_avatar($id_or_email,$size='100'); ?>
但它似乎试图抓取Gravatar图像。我需要这个来抓取用户上传的图像。我该怎么做呢?
编辑:以下是简单本地头像插件的php代码:class simple_local_avatars
{
function simple_local_avatars() {
add_filter( 'get_avatar', array( $this, 'get_avatar' ), 10, 5 );
add_action( 'admin_init', array( $this, 'admin_init' ) );
add_action( 'show_user_profile', array( $this, 'edit_user_profile' ) );
add_action( 'edit_user_profile', array( $this, 'edit_user_profile' ) );
add_action( 'personal_options_update', array( $this, 'edit_user_profile_update' ) );
add_action( 'edit_user_profile_update', array( $this, 'edit_user_profile_update' ) );
add_filter( 'avatar_defaults', array( $this, 'avatar_defaults' ) );
}
function get_avatar( $avatar = '', $id_or_email, $size = '96', $default = '', $alt = false ) {
if ( is_numeric($id_or_email) )
$user_id = (int) $id_or_email;
elseif ( is_string( $id_or_email ) && ( $user = get_user_by_email( $id_or_email ) ) )
$user_id = $user->ID;
elseif ( is_object( $id_or_email ) && ! empty( $id_or_email->user_id ) )
$user_id = (int) $id_or_email->user_id;
if ( empty( $user_id ) )
return $avatar;
$local_avatars = get_user_meta( $user_id, 'simple_local_avatar', true );
if ( empty( $local_avatars ) || empty( $local_avatars['full'] ) )
return $avatar;
$size = (int) $size;
if ( empty( $alt ) )
$alt = get_the_author_meta( 'display_name', $user_id );
// generate a new size
if ( empty( $local_avatars[$size] ) ) {
$upload_path = wp_upload_dir();
$avatar_full_path = str_replace( $upload_path['baseurl'], $upload_path['basedir'], $local_avatars['full'] );
$image_sized = image_resize( $avatar_full_path, $size, $size, true );
// deal with original being >= to original image (or lack of sizing ability)
$local_avatars[$size] = is_wp_error($image_sized) ? $local_avatars[$size] = $local_avatars['full'] : str_replace( $upload_path['basedir'], $upload_path['baseurl'], $image_sized );
update_user_meta( $user_id, 'simple_local_avatar', $local_avatars );
} elseif ( substr( $local_avatars[$size], 0, 4 ) != 'http' ) {
$local_avatars[$size] = site_url( $local_avatars[$size] );
}
$author_class = is_author( $user_id ) ? ' current-author' : '' ;
$avatar = "<img alt='" . esc_attr($alt) . "' src='" . $local_avatars[$size] . "' class='avatar avatar-{$size}{$author_class} photo' height='{$size}' width='{$size}' />";
return apply_filters( 'simple_local_avatar', $avatar );
}
function admin_init() {
load_plugin_textdomain( 'simple-local-avatars', false, dirname( plugin_basename( __FILE__ ) ) . '/localization/' );
register_setting( 'discussion', 'simple_local_avatars_caps', array( $this, 'sanitize_options' ) );
add_settings_field( 'simple-local-avatars-caps', __('Local Avatar Permissions','simple-local-avatars'), array( $this, 'avatar_settings_field' ), 'discussion', 'avatars' );
}
function sanitize_options( $input ) {
$new_input['simple_local_avatars_caps'] = empty( $input['simple_local_avatars_caps'] ) ? 0 : 1;
return $new_input;
}
function avatar_settings_field( $args ) {
$options = get_option('simple_local_avatars_caps');
echo '
<label for="simple_local_avatars_caps">
<input type="checkbox" name="simple_local_avatars_caps" id="simple_local_avatars_caps" value="1" ' . @checked( $options['simple_local_avatars_caps'], 1, false ) . ' />
' . __('Only allow users with file upload capabilities to upload local avatars (Authors and above)','simple-local-avatars') . '
</label>
';
}
function edit_user_profile( $profileuser ) {
?>
<h3><?php _e( 'Avatar','simple-local-avatars' ); ?></h3>
<table class="form-table">
<tr>
<th><label for="simple-local-avatar"><?php _e('Upload Avatar','simple-local-avatars'); ?></label></th>
<td style="width: 50px;" valign="top">
<?php echo get_avatar( $profileuser->ID ); ?>
</td>
<td>
<?php
$options = get_option('simple_local_avatars_caps');
if ( empty($options['simple_local_avatars_caps']) || current_user_can('upload_files') ) {
do_action( 'simple_local_avatar_notices' );
wp_nonce_field( 'simple_local_avatar_nonce', '_simple_local_avatar_nonce', false );
?>
<input type="file" name="simple-local-avatar" id="simple-local-avatar" /><br />
<?php
if ( empty( $profileuser->simple_local_avatar ) )
echo '<span class="description">' . __('No local avatar is set. Use the upload field to add a local avatar.','simple-local-avatars') . '</span>';
else
echo '
<input type="checkbox" name="simple-local-avatar-erase" value="1" /> ' . __('Delete local avatar','simple-local-avatars') . '<br />
<span class="description">' . __('Replace the local avatar by uploading a new avatar, or erase the local avatar (falling back to a gravatar) by checking the delete option.','simple-local-avatars') . '</span>
';
} else {
if ( empty( $profileuser->simple_local_avatar ) )
echo '<span class="description">' . __('No local avatar is set. Set up your avatar at Gravatar.com.','simple-local-avatars') . '</span>';
else
echo '<span class="description">' . __('You do not have media management permissions. To change your local avatar, contact the blog administrator.','simple-local-avatars') . '</span>';
}
?>
</td>
</tr>
</table>
<script type="text/javascript">var form = document.getElementById('your-profile');form.encoding = 'multipart/form-data';form.setAttribute('enctype', 'multipart/form-data');</script>
<?php
}
function edit_user_profile_update( $user_id ) {
if ( ! isset( $_POST['_simple_local_avatar_nonce'] ) || ! wp_verify_nonce( $_POST['_simple_local_avatar_nonce'], 'simple_local_avatar_nonce' ) ) //security
return;
if ( ! empty( $_FILES['simple-local-avatar']['name'] ) ) {
$mimes = array(
'jpg|jpeg|jpe' => 'image/jpeg',
'gif' => 'image/gif',
'png' => 'image/png',
'bmp' => 'image/bmp',
'tif|tiff' => 'image/tiff'
);
// front end (theme my profile etc) support
if ( ! function_exists( 'wp_handle_upload' ) )
require_once( ABSPATH . 'wp-admin/includes/file.php' );
$this->avatar_delete( $user_id ); // delete old images if successful
$avatar = wp_handle_upload( $_FILES['simple-local-avatar'], array( 'mimes' => $mimes, 'test_form' => false, 'unique_filename_callback' => array( $this, 'unique_filename_callback' ) ) );
if ( empty($avatar['file']) ) { // handle failures
switch ( $avatar['error'] ) {
case 'File type does not meet security guidelines. Try another.' :
add_action( 'user_profile_update_errors', create_function('$a','$a->add("avatar_error",__("Please upload a valid image file for the avatar.","simple-local-avatars"));') );
break;
default :
add_action( 'user_profile_update_errors', create_function('$a','$a->add("avatar_error","<strong>".__("There was an error uploading the avatar:","simple-local-avatars")."</strong> ' . esc_attr( $avatar['error'] ) . '");') );
}
return;
}
update_user_meta( $user_id, 'simple_local_avatar', array( 'full' => $avatar['url'] ) ); // save user information (overwriting old)
} elseif ( ! empty( $_POST['simple-local-avatar-erase'] ) ) {
$this->avatar_delete( $user_id );
}
}
/**
* remove the custom get_avatar hook for the default avatar list output on options-discussion.php
*/
function avatar_defaults( $avatar_defaults ) {
remove_action( 'get_avatar', array( $this, 'get_avatar' ) );
return $avatar_defaults;
}
/**
* delete avatars based on user_id
*/
function avatar_delete( $user_id ) {
$old_avatars = get_user_meta( $user_id, 'simple_local_avatar', true );
$upload_path = wp_upload_dir();
if ( is_array($old_avatars) ) {
foreach ($old_avatars as $old_avatar ) {
$old_avatar_path = str_replace( $upload_path['baseurl'], $upload_path['basedir'], $old_avatar );
@unlink( $old_avatar_path );
}
}
delete_user_meta( $user_id, 'simple_local_avatar' );
}
function unique_filename_callback( $dir, $name, $ext ) {
$user = wp_get_current_user();
$name = sanitize_file_name( $user->display_name . '_avatar' );
$number = 1;
while ( file_exists( $dir . "/$name$ext" ) ) {
$name = $name . '_' . $number;
$number++;
}
return $name . $ext;
}
}
$simple_local_avatars = new simple_local_avatars;
/**
* more efficient to call simple local avatar directly in theme and avoid gravatar setup
*
* @param int|string|object $id_or_email A user ID, email address, or comment object
* @param int $size Size of the avatar image
* @param string $default URL to a default image to use if no avatar is available
* @param string $alt Alternate text to use in image tag. Defaults to blank
* @return string <img> tag for the user's avatar
*/
function get_simple_local_avatar( $id_or_email, $size = '96', $default = '', $alt = false ) {
global $simple_local_avatars;
$avatar = $simple_local_avatars->get_avatar( '', $id_or_email, $size, $default, $alt );
if ( empty ( $avatar ) )
$avatar = get_avatar( $id_or_email, $size, $default, $alt );
return $avatar;
}
/**
* on uninstallation, remove the custom field from the users and delete the local avatars
*/
register_uninstall_hook( __FILE__, 'simple_local_avatars_uninstall' );
function simple_local_avatars_uninstall() {
$simple_local_avatars = new simple_local_avatars;
$users = get_users_of_blog();
foreach ( $users as $user )
$simple_local_avatars->avatar_delete( $user->user_id );
delete_option('simple_local_avatars_caps');
}
不使用
echo get_avatar($id_or_email,$size='100');
试着调用这个
全球current_user美元;回声get_avatar (current_user -> id 100美元);
首先需要在简单的本地头像和bbpress之间挂钩插件。
这一行在bbpress主题文件夹(你使用的任何主题)bbpress-functions.php在setup actions()
add_action( 'bbp_sla_edit_user_profile', array( 'simple_local_avatars', 'edit_user_profile' ) );
在bbpress主题文件夹的form-user-edit.php中添加这一行
<?php
global $current_user;
do_action( 'bbp_sla_edit_user_profile', $current_user );
?>