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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 4 times in this file.
Line | Code |
---|---|
1615 | $term_group = 0; |
1616 | if ( $alias_of ) { |
1617 | $alias = $wpdb->get_row( $wpdb->prepare( "SELECT term_id, term_group FROM $wpdb->terms WHERE slug = %s", $alias_of) ); |
1618 | if ( $alias->term_group ) { |
1619 | // The alias we want is already in a group, so let's use that one. |
1620 | $term_group = $alias->term_group; |
1621 | } else { |
1622 | // The alias isn't in a group, so let's create a new one and firstly add the alias term to it. |
1623 | $term_group = $wpdb->get_var("SELECT MAX(term_group) FROM $wpdb->terms") + 1; |
1624 | do_action( 'edit_terms', $alias->term_id ); |
1625 | $wpdb->update($wpdb->terms, compact('term_group'), array('term_id' => $alias->term_id) ); |
1626 | do_action( 'edited_terms', $alias->term_id ); |
1627 | } |
1628 | } |
1629 |
|
1630 | if ( $term_id = term_exists($slug) ) { |
1631 | $existing_term = $wpdb->get_row( $wpdb->prepare( "SELECT name FROM $wpdb->terms WHERE term_id = %d", $term_id), ARRAY_A ); |
1632 | // We've got an existing term in the same taxonomy, which matches the name of the new term: |
1633 | if ( is_taxonomy_hierarchical($taxonomy) && $existing_term['name'] == $name && term_exists( (int) $term_id, $taxonomy ) ) { |
Line | Code |
1656 | $slug = wp_unique_term_slug($slug, (object) $args); |
1657 | if ( false === $wpdb->insert( $wpdb->terms, compact( 'name', 'slug', 'term_group' ) ) ) |
1658 | return new WP_Error('db_insert_error', __('Could not insert term into the database'), $wpdb->last_error); |
1659 | $term_id = (int) $wpdb->insert_id; |
1660 | } |
1661 |
|
1662 | // Seems unreachable, However, Is used in the case that a term name is provided, which sanitizes to an empty string. |
1663 | if ( empty($slug) ) { |
1664 | $slug = sanitize_title($slug, $term_id); |
1665 | do_action( 'edit_terms', $term_id ); |
1666 | $wpdb->update( $wpdb->terms, compact( 'slug' ), compact( 'term_id' ) ); |
1667 | do_action( 'edited_terms', $term_id ); |
1668 | } |
1669 |
|
1670 | $tt_id = $wpdb->get_var( $wpdb->prepare( "SELECT tt.term_taxonomy_id FROM $wpdb->term_taxonomy AS tt INNER JOIN $wpdb->terms AS t ON tt.term_id = t.term_id WHERE tt.taxonomy = %s AND t.term_id = %d", $taxonomy, $term_id ) ); |
1671 |
|
1672 | if ( !empty($tt_id) ) |
1673 | return array('term_id' => $term_id, 'term_taxonomy_id' => $tt_id); |
1674 |
|
Line | Code |
1924 |
|
1925 | if ( $alias_of ) { |
1926 | $alias = $wpdb->get_row( $wpdb->prepare( "SELECT term_id, term_group FROM $wpdb->terms WHERE slug = %s", $alias_of) ); |
1927 | if ( $alias->term_group ) { |
1928 | // The alias we want is already in a group, so let's use that one. |
1929 | $term_group = $alias->term_group; |
1930 | } else { |
1931 | // The alias isn't in a group, so let's create a new one and firstly add the alias term to it. |
1932 | $term_group = $wpdb->get_var("SELECT MAX(term_group) FROM $wpdb->terms") + 1; |
1933 | do_action( 'edit_terms', $alias->term_id ); |
1934 | $wpdb->update( $wpdb->terms, compact('term_group'), array( 'term_id' => $alias->term_id ) ); |
1935 | do_action( 'edited_terms', $alias->term_id ); |
1936 | } |
1937 | } |
1938 |
|
1939 | // Check for duplicate slug |
1940 | $id = $wpdb->get_var( $wpdb->prepare( "SELECT term_id FROM $wpdb->terms WHERE slug = %s", $slug ) ); |
1941 | if ( $id && ($id != $term_id) ) { |
1942 | // If an empty slug was passed or the parent changed, reset the slug to something unique. |
1943 | // Otherwise, bail. |
1944 | if ( $empty_slug || ( $parent != $term['parent']) ) |
1945 | $slug = wp_unique_term_slug($slug, (object) $args); |
1946 | else |
1947 | return new WP_Error('duplicate_term_slug', sprintf(__('The slug “%s” is already in use by another term'), $slug)); |
1948 | } |
1949 | do_action( 'edit_terms', $term_id ); |
1950 | $wpdb->update($wpdb->terms, compact( 'name', 'slug', 'term_group' ), compact( 'term_id' ) ); |
1951 | if ( empty($slug) ) { |
1952 | $slug = sanitize_title($name, $term_id); |
1953 | $wpdb->update( $wpdb->terms, compact( 'slug' ), compact( 'term_id' ) ); |
1954 | } |
1955 | do_action( 'edited_terms', $term_id ); |
1956 |
|
1957 | $tt_id = $wpdb->get_var( $wpdb->prepare( "SELECT tt.term_taxonomy_id FROM $wpdb->term_taxonomy AS tt INNER JOIN $wpdb->terms AS t ON tt.term_id = t.term_id WHERE tt.taxonomy = %s AND t.term_id = %d", $taxonomy, $term_id) ); |
1958 | do_action( 'edit_term_taxonomy', $tt_id, $taxonomy ); |