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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 |
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196 | $wpdb->query( "UPDATE $wpdb->posts SET comment_count = '$c->c' WHERE ID = '$comment_post_ID'" ); |
197 |
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198 | do_action('edit_comment', $comment_ID); |
199 |
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200 | return $rval; |
201 | } |
202 |
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203 | function wp_delete_comment($comment_id) { |
204 | global $wpdb; |
205 | do_action('delete_comment', $comment_id); |
206 |
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207 | $comment = get_comment($comment_id); |
208 |
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209 | if ( ! $wpdb->query("DELETE FROM $wpdb->comments WHERE comment_ID='$comment_id' LIMIT 1") ) |
210 | return false; |
211 |
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212 | $post_id = $comment->comment_post_ID; |
213 | if ( $post_id && $comment->comment_approved == 1 ) { |
214 | $count = $wpdb->get_var("SELECT COUNT(*) FROM $wpdb->comments WHERE comment_post_ID = '$post_id' AND comment_approved = '1'"); |