在Wordpress中有什么方法可以阻止内容编辑在上传图片到帖子时选择“全尺寸”选项吗?我希望它们只有“缩略图”、“中图”和“大图”选项。我曾经使用剪刀插件来做这件事,但是从Wordpress 2.9开始,这个插件不再工作了。
发布于 2010-01-10 16:15:55
您可以通过强制WordPress不显示full size选项来获得此结果。创建大小单选按钮的函数在wp-admin/includes/media.php中,名为image_size_input_fields。
据我所知,该函数没有过滤器或操作挂钩,但调用它的函数(image_attachment_fields_to_edit)有一个过滤器挂钩attachment_fields_to_edit。
因此,基本上我们可以使用过滤器钩子来用我们自己的函数覆盖这两个函数,只需做很小的修改。
这将在标准的functions.php文件中工作,或者我想您可以将其合并到一个插件中。
首先,添加新的过滤器:
add_filter('attachment_fields_to_edit', 'MY_image_attachment_fields_to_edit', 11, 2);接下来,我们创建两个函数。在本例中,我为名称添加了前缀MY_:
function MY_image_attachment_fields_to_edit($form_fields, $post) {
if ( substr($post->post_mime_type, 0, 5) == 'image' ) {
$alt = get_post_meta($post->ID, '_wp_attachment_image_alt', true);
if ( empty($alt) )
$alt = '';
$form_fields['post_title']['required'] = true;
$form_fields['image_alt'] = array(
'value' => $alt,
'label' => __('Alternate text'),
'helps' => __('Alt text for the image, e.g. “The Mona Lisa”')
);
$form_fields['align'] = array(
'label' => __('Alignment'),
'input' => 'html',
'html' => image_align_input_fields($post, get_option('image_default_align')),
);
$form_fields['image-size'] = MY_image_size_input_fields( $post, get_option('image_default_size', 'medium') );
} else {
unset( $form_fields['image_alt'] );
}
return $form_fields;
}这里唯一与普通WordPress函数不同的是,我们调用的是MY_image_size_input_fields而不是image_size_input_fields。
现在,执行实际隐藏的函数:
function MY_image_size_input_fields( $post, $check = '' ) {
// get a list of the actual pixel dimensions of each possible intermediate version of this image
/* $size_names = array('thumbnail' => __('Thumbnail'), 'medium' => __('Medium'), 'large' => __('Large'), 'full' => __('Full size')); */
$size_names = array('thumbnail' => __('Thumbnail'), 'medium' => __('Medium'), 'large' => __('Large'));
if ( empty($check) )
$check = get_user_setting('imgsize', 'medium');
echo '<pre>'; print_r($check); echo '</pre>';
foreach ( $size_names as $size => $label ) {
$downsize = image_downsize($post->ID, $size);
$checked = '';
// is this size selectable?
$enabled = ( $downsize[3] || 'large' == $size );
$css_id = "image-size-{$size}-{$post->ID}";
// if this size is the default but that's not available, don't select it
if ( $size == $check ) {
if ( $enabled )
$checked = " checked='checked'";
else
$check = '';
} elseif ( !$check && $enabled && 'thumbnail' != $size ) {
// if $check is not enabled, default to the first available size that's bigger than a thumbnail
$check = $size;
$checked = " checked='checked'";
}
$html = "<div class='image-size-item'><input type='radio' " . ( $enabled ? '' : "disabled='disabled' " ) . "name='attachments[$post->ID][image-size]' id='{$css_id}' value='{$size}'$checked />";
$html .= "<label for='{$css_id}'>$label</label>";
// only show the dimensions if that choice is available
if ( $enabled )
$html .= " <label for='{$css_id}' class='help'>" . sprintf( __("(%d × %d)"), $downsize[1], $downsize[2] ). "</label>";
$html .= '</div>';
$out[] = $html;
}
return array(
'label' => __('Size'),
'input' => 'html',
'html' => join("\n", $out),
);
}在最后一个函数中,只有两件事发生了变化。在顶部,我们去掉了$size_names数组定义中对'Full Size‘的引用。然后那行写着$enabled = ( $downsize[3] || 'large' == $size );,我们改变了。我们简单地用'large' == $size替换了'full' == $size。
以下是结果的截图:

发布于 2010-01-06 01:28:17
我不认为你可以禁用大号,但你可以将它的宽度和高度设置为与中号相同。它在设置→媒体下
https://stackoverflow.com/questions/2007289
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