converting current attachment code to use Attachment plugin WordPress

Christianto answers:

Hi,

Your code to get all attachement:

$images = get_children( array(
'post_type' => 'attachment',
'post_status' => 'inherit',
'post_parent' => $post->ID,
'order' => 'ASC',
'orderby' => 'menu_order ID',
'post_mime_type' => 'image',
) );

only use to check if attachment is exists:

if ( $images ){
$_content_attach_images = '[fancybox]<div class="attached_gallery">';
$_content_attach_images .= '<h4 class="gallery">Image Gallery</h4>';
$_content_attach_images .= do_shortcode('[gallery id="' . intval( $post->ID ) . '"]');
$_content_attach_images .= '</div>';
}

the images itself are using [gallery] shortcode (which using get_children() to populate images attachment).

If you want to use attachment images which comes from plugin, you can edit gallery shortcode on media.php
Or creating new shortcode which will use plugin function attachments_get_attachments();

this is for example the new shortcode gallery code (untested),
you can check the difference between the original on media.php line 777:

add_shortcode('gallery_attach', 'attachment_gallery_shortcode');

/**
* The Gallery shortcode.
*/
function attachment_gallery_shortcode($attr) {
global $post;

static $instance = 0;
$instance++;

// Allow plugins/themes to override the default gallery template.
$output = apply_filters('post_gallery', '', $attr);
if ( $output != '' )
return $output;

// We're trusting author input, so let's at least make sure it looks like a valid orderby statement
if ( isset( $attr['orderby'] ) ) {
$attr['orderby'] = sanitize_sql_orderby( $attr['orderby'] );
if ( !$attr['orderby'] )
unset( $attr['orderby'] );
}

extract(shortcode_atts(array(
'order' => 'ASC',
'orderby' => 'menu_order ID',
'id' => $post->ID,
'itemtag' => 'dl',
'icontag' => 'dt',
'captiontag' => 'dd',
'columns' => 3,
'size' => 'thumbnail',
'include' => '',
'exclude' => ''
), $attr));

$id = intval($id);
if ( 'RAND' == $order )
$orderby = 'none';

if( function_exists( 'attachments_get_attachments' ) ){
$_attachments = attachments_get_attachments();

$attachments = array();
foreach ( $_attachments as $key => $val ) {
$attachments[$val->ID] = $_attachments[$key];
}
} else {
return '';
}

if ( empty($attachments) )
return '';

if ( is_feed() ) {
$output = "\n";
foreach ( $attachments as $att_id => $attachment )
$output .= wp_get_attachment_link($att_id, $size, true) . "\n";
return $output;
}

$itemtag = tag_escape($itemtag);
$captiontag = tag_escape($captiontag);
$columns = intval($columns);
$itemwidth = $columns > 0 ? floor(100/$columns) : 100;
$float = is_rtl() ? 'right' : 'left';

$selector = "gallery-{$instance}";

$gallery_style = $gallery_div = '';
if ( apply_filters( 'use_default_gallery_style', true ) )
$gallery_style = "
<style type='text/css'>
#{$selector} {
margin: auto;
}
#{$selector} .gallery-item {
float: {$float};
margin-top: 10px;
text-align: center;
width: {$itemwidth}%;
}
#{$selector} img {
border: 2px solid #cfcfcf;
}
#{$selector} .gallery-caption {
margin-left: 0;
}
</style>
<!-- see gallery_shortcode() in wp-includes/media.php -->";
$size_class = sanitize_html_class( $size );
$gallery_div = "<div id='$selector' class='gallery galleryid-{$id} gallery-columns-{$columns} gallery-size-{$size_class}'>";
$output = apply_filters( 'gallery_style', $gallery_style . "\n\t\t" . $gallery_div );

$i = 0;
foreach ( $attachments as $id => $attachment ) {
$link = isset($attr['link']) && 'file' == $attr['link'] ? wp_get_attachment_link($id, $size, false, false) : wp_get_attachment_link($id, $size, true, false);

$output .= "<{$itemtag} class='gallery-item'>";
$output .= "
<{$icontag} class='gallery-icon'>
$link
</{$icontag}>";
if ( $captiontag && trim($attachment->caption) ) {
$output .= "
<{$captiontag} class='wp-caption-text gallery-caption'>
" . wptexturize($attachment->caption) . "
</{$captiontag}>";
}
$output .= "</{$itemtag}>";
if ( $columns > 0 && ++$i % $columns == 0 )
$output .= '<br style="clear: both" />';
}

$output .= "
<br style='clear: both;' />
</div>\n";

return $output;
}

and this your function, using new [gallery_attach] shortcode:
function tr_get_attachments_image($post){

global $post;
$_content_attach_images = '';

if( function_exists( 'attachments_get_attachments' ) ){

$attachments = attachments_get_attachments();
$images = count( $attachments );

if ( $images ){
$_content_attach_images = '[fancybox]<div class="attached_gallery">';
$_content_attach_images .= '<h4 class="gallery">Image Gallery</h4>';
$_content_attach_images .= do_shortcode('[gallery_attach id="' . intval( $post->ID ) . '"]');
$_content_attach_images .= '</div>';
}

echo apply_filters('the_content', $_content_attach_images );
}
}

SuperAgent comments:

Humm, I didn't realise this about the gallery shortcode. . . . that muddies the water a bit.

I think I've backfired on this question. My goal is <em>not</em> to rewrite the gallery shortcode, but instead to understand how to work with values out of 'attachments_get_attachments()'. I was just using the example the gallery shortcode was just one I had close to hand.

I think I should have asked instead to output a list of attachments filtered by mime type, using my code as a basis.

Am I allowed to revise this question?

Christianto comments:

Did you mean like this?

function tr_get_attachments_image($post){

global $post;
$_content_attach_images = '';

if( function_exists( 'attachments_get_attachments' ) ){

$attachments = attachments_get_attachments();
$attachments_count = count( $attachments );

if ( $attachments_count ){

$_content_attach_images = '[fancybox]<div class="attached_gallery">';
$_content_attach_images .= '<h4 class="gallery">Image Gallery</h4>';

for( $i=0; $i<$attachments_count; $i++ ){

// if attachment is jpeg, png, gif images extension
if($attachments[$i]['mime'] == 'image/jpeg' || $attachments[$i]['mime'] == 'image/png' || $attachments[$i]['mime'] == 'image/gif' ){

// get attachment data for full version and thumbnail version.
$full_image = wp_get_attachment_image_src($attachments[$i]['id'], 'full');
$thumb_image = wp_get_attachment_image_src($attachments[$i]['id'], 'thumbnail');

$_content_attach_images .= '<a class="fancybox images" href="'.$full_image[0].'" >';
$_content_attach_images .= '<img title="'.$attachments[$i]['title'].' "src="'.$thumb_image[0].'" width="'.$thumb_image[1].'" height="'.$thumb_image[2].'"/>';
$_content_attach_images .= '</a>';

// if attachment other like csv, txt, xml
} else if($attachments[$i]['mime'] == 'text/csv' || $attachments[$i]['mime'] == 'text/plain' || $attachments[$i]['mime'] == 'text/xml' ){

$attachment_link = $attachments[$i]['location'];
// or using wp_get_attachment url
// $attachment_link = wp_get_attachment_url($attachments[$i]['id']);

$_content_attach_images .= '<a class="fancybox file-attachment" href="'.$attachment_link.'" >';
$_content_attach_images .= 'this is '.$attachments[$i]['title'].' link';
$_content_attach_images .= '</a>';

}

}

$_content_attach_images .= '</div>';

}

echo apply_filters('the_content', $_content_attach_images );
}
}

SuperAgent comments:

bingo, this is excellent, what a relief. I can work with this quite easily.
Thank you!