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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.
Line | Code |
---|---|
154 |
|
155 | /* translators: column name */ |
156 | if ( !$this->detached ) { |
157 | $posts_columns['parent'] = _x( 'Uploaded to', 'column name' ); |
158 | if ( post_type_supports( 'attachment', 'comments' ) ) |
159 | $posts_columns['comments'] = '<span class="vers"><div title="' . esc_attr__( 'Comments' ) . '" class="comment-grey-bubble"></div></span>'; |
160 | } |
161 | /* translators: column name */ |
162 | $posts_columns['date'] = _x( 'Date', 'column name' ); |
163 | $posts_columns = apply_filters( 'manage_media_columns', $posts_columns, $this->detached ); |
164 |
|
165 | return $posts_columns; |
166 | } |
167 |
|
168 | function get_sortable_columns() { |
169 | return array( |
170 | 'title' => 'title', |
171 | 'author' => 'author', |
172 | 'parent' => 'parent', |