An attachment is a post so you can save a post meta for each image
To setup you just need:
update_post_meta(
$post->ID,
Name_of_the_variable,
Value_of_the_variable
)
And to retrieve it:
get_post_meta(
$post->ID,
Name_of_the_variable
)
For example:
update_post_meta(
$post->ID,
'my_custom_parameter',
'my_parameter_value'
)
Whish it helps.
Thanks for the answer.
Here is my code to add the input in the media uplaod screen:
function tdv_integration_attachment_fields_to_edit( $form_fields, $post ) {
if(get_option('hi_enabledForDefault') == 1)
$checkedHighslide = 'checked="checked" ';>
$my_form_fields = array(
'tdv' => array(
'label' => __('Enlargement', HI_TEXTDOMAIN),
'input' => 'html',
'html' => "
<input type='checkbox' name='tdv-{$post->ID}' id='tdv-{$post->ID}' data-user-setting='tdv-{$post->ID}' data-setting='tdv-{$post->ID}' $checkedHighslide />
<label for='tdv-{$post->ID}'>" . __('Use tdv', HI_TEXTDOMAIN) . "</label>" )
);
if( $post->post_mime_type == 'image/jpeg' OR $post->post_mime_type == 'image/gif' OR $post->post_mime_type == 'image/png' OR $post->post_mime_type == 'image/tiff')
{
return array_merge( $form_fields, $my_form_fields );
}
else
return $form_fields;
}
add_filter( 'attachment_fields_to_edit', 'tdv_integration_attachment_fields_to_edit', 66, 2 );
And I can’t find a way to retrieve if my input is checked or not…
Anyone would know ?
add_filter('attachment_fields_to_edit', 'my_image_attachment_fields_to_edit', 10, 2);
add_filter('attachment_fields_to_save', 'my_image_attachment_fields_to_save', 10, 2);
function my_image_attachment_fields_to_edit($form_fields, $post) {
$value = get_post_meta($post->ID, '_drink', true);
$form_fields['drink'] = array(
'label' => __('Drink'),
'input' => 'html',
'html' => "<input type='radio' name='attachments[{$post->ID}][drink]' value='tea' ". (( $value == 'tea' ) ? "checked='checked'" : "" ) . "/> tea
<input type='radio' name='attachments[{$post->ID}][drink]' value='coffee' ". (( $value == 'coffee' ) ? "checked='checked'" : "" ) . "/> coffee",
'value' => $value,
);
return $form_fields;
}
function my_image_attachment_fields_to_save($post, $attachment) {
if( isset($attachment['drink']) )
update_post_meta($post['ID'], '_drink', $attachment['drink']);
return $post;
}
This works for me. Hope it will help 🙂
VJPO,
I am using a bit of your code because it was exactly what I was looking for…unfortunately I can’t get the radio buttons to actually show up in the Edit Media page. How did you do that?
Thank you in advance!
Scratch that – I had forgotten to rename the functions to match the filter call. Nevermind. Thanks for sharing this code!
@coolarts & vjpo: many thanks for your help!
