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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 2 times in this file.
Line | Code |
---|---|
1270 |
|
1271 | /** |
1272 | * Filter the attachment fields to edit. |
1273 | * |
1274 | * @since 2.5.0 |
1275 | * |
1276 | * @param array $form_fields An array of attachment form fields. |
1277 | * @param WP_Post $post The WP_Post attachment object. |
1278 | */ |
1279 | $form_fields = apply_filters( 'attachment_fields_to_edit', $form_fields, $post ); |
1280 |
|
1281 | return $form_fields; |
1282 | } |
1283 |
|
1284 | /** |
1285 | * Retrieve HTML for media items of post gallery. |
1286 | * |
1287 | * The HTML markup retrieved will be created for the progress of SWF Upload |
1288 | * component. Will also create link for showing and hiding the form to modify |
Line | Code |
1625 | $form_fields[$taxonomy] = $t; |
1626 | } |
1627 | } |
1628 |
|
1629 | // Merge default fields with their errors, so any key passed with the error (e.g. 'error', 'helps', 'value') will replace the default |
1630 | // The recursive merge is easily traversed with array casting: foreach( (array) $things as $thing ) |
1631 | $form_fields = array_merge_recursive($form_fields, (array) $args['errors'] ); |
1632 |
|
1633 | /** This filter is documented in wp-admin/includes/media.php */ |
1634 | $form_fields = apply_filters( 'attachment_fields_to_edit', $form_fields, $post ); |
1635 |
|
1636 | unset( $form_fields['image-size'], $form_fields['align'], $form_fields['image_alt'], |
1637 | $form_fields['post_title'], $form_fields['post_excerpt'], $form_fields['post_content'], |
1638 | $form_fields['url'], $form_fields['menu_order'], $form_fields['image_url'] ); |
1639 |
|
1640 | /** This filter is documented in wp-admin/includes/media.php */ |
1641 | $media_meta = apply_filters( 'media_meta', '', $post ); |
1642 |
|
1643 | $defaults = array( |