diff options
| -rw-r--r-- | taxonomy_node_tree.module | 202 |
1 files changed, 148 insertions, 54 deletions
diff --git a/taxonomy_node_tree.module b/taxonomy_node_tree.module index 40d71dc..088c02a 100644 --- a/taxonomy_node_tree.module +++ b/taxonomy_node_tree.module @@ -2,12 +2,14 @@ // $Id$ /** - * Drawer logic. + * Return the parent terms of a given vocabulary. + * + * This function takes a vocabulary id and returns a + * list of it's parent terms. */ -function theme_taxonomy_node_tree($menu_name, $mlid) { +function taxonomy_node_tree_parents($vid) { // Get all terms from a given vocabulary - $vocabulary = variable_get('taxonomy_node_tree', '1'); - $terms = taxonomy_node_tree_taxonomy_get_tree($vocabulary); + $terms = taxonomy_node_tree_taxonomy_get_tree($vid); foreach ($terms as $term) { // Just show parent terms @@ -16,24 +18,45 @@ function theme_taxonomy_node_tree($menu_name, $mlid) { } } - // Build the drawer - $output = taxonomy_node_tree_build($menu); - return $output; + return $menu; +} + +/** + * Implementation of hook_theme(); + * + * @TODO: update + */ +function taxonomy_node_tree_theme() { + return array( + 'taxonomy_node_tree_menu_parents' => array( + 'arguments' => array( + 'menu' => NULL, + 'parent' => NULL, + ), + ), + 'taxonomy_node_tree_link' => array( + 'arguments' => array(), + ), + ); } /** - * Drawer rendering. + * Render the parent items of a menu. * * @ingroup themeable */ -function taxonomy_node_tree_build($menu) { +function theme_taxonomy_node_tree_menu_parents($menu, $class = 'menu', $id = NULL, $base = NULL) { + + if ($id != NULL) { + $id = ' id="'. $id .'"'; + } - $output = '<ul id="drw_tabs">'; - $output .= implode((array) module_invoke_all('taxonomy_node_tree_build')); + $output = '<ul class="'. $class .'"'. $id .'>'; + $output .= implode((array) module_invoke_all('taxonomy_node_tree_menu_parents')); foreach ($menu as $item) { $link['title'] = $item->name; - $link['href'] = 'taxonomy_node_tree/' . $item->tid; + $link['href'] = $base . $item->tid; $output .= theme('taxonomy_node_tree_link', $link); } @@ -45,37 +68,36 @@ function taxonomy_node_tree_build($menu) { } /** - * Menu callback. + * Link theme function. + * + * @ingroup themeable */ -function taxonomy_render_tree($tid = 0, $vid) { - // First render all nodes whose parent is $term - if ($tid != 0) { - - $output = ''; - $nodes = taxonomy_select_nodes(array($tid)); - - while ($node = db_fetch_object($nodes)) { - $link['title'] = $node->title; - $link['href'] = 'node/' . $node->nid; - $output .= theme('taxonomy_node_tree_link', $link); - } +function theme_taxonomy_node_tree_link($link) { + if (empty($link['localized_options'])) { + $link['localized_options'] = array(); } - // Render other child nodes - - $terms = taxonomy_node_tree_taxonomy_get_tree($vid, $tid); - foreach ($terms as $term) { - $filter[] = $term->tid; - } + $link['attributes']['rel'] = 'drw'; - // TODO: continue from here - $query = 'SELECT node.nid, node.title, term_node.tid FROM {node} LEFT JOIN - {term_node} ON term_node.nid = node.nid WHERE term_node.tid IN (%s) - AND node.status = "1"'; + $output = '<li class="drw_li">'; + $output .= l($link['title'], $link['href'], array('attributes' => array('rel' => 'drw'))); + $output .= '</li>'; - $result = db_query(db_rewrite_sql($query), implode(',', $filter)); + return $output; +} - while ($node = db_fetch_object($result)) { +/** + * Setup an index of terms associated with it's children nodes. + * + * This function accept a list of nodes and terms and build a + * tree with the corresponding association between terms and + * nodes. + * + * @TODO: It is assumed that nodes are just associated with + * a single term. + */ +function taxonomy_node_tree_index($nodes, $terms) { + while ($node = db_fetch_object($nodes)) { foreach ($terms as $term) { // add nodes into the term if ($node->tid == $term->tid) { @@ -85,19 +107,105 @@ function taxonomy_render_tree($tid = 0, $vid) { $tree[$term->tid] = $term; } } + return $tree; +} - // add children relationship just for terms present in the tree +/** + * Add children relationship for terms present in the tree. + */ +function taxonomy_node_tree_relation($tree) { foreach ($tree as $term) { if ($term->parents[0] != 0 && isset($tree[$term->parents[0]])) { $tree[$term->parents[0]]->children[] = $term->tid; } } + return $tree; +} - // build menu with hierarchy +/** + * Sort terms in the tree. + * + * This function add terms on it's right place in the taxonomy tree. + */ +function taxonomy_node_tree_sort(&$tree, $term) { + if ($term->parents[0] != 0 && isset($tree[$term->parents[0]])) { + // is child + if (isset($term->children)) { + // is also parent, so go down one level + foreach($term->children as $child) { + taxonomy_node_tree_sort($tree, $tree[$child]); + } + } + $tree[$term->parents[0]]->below[] = drupal_clone($term); + unset($tree[$term->tid]); + } +} + +/** + * Sort a taxonomy tree to the right hierarchy. + */ +function taxonomy_node_tree_hierarchy($tree) { foreach ($tree as $term) { - taxonomy_node_tree_build_tree($tree, $term); + taxonomy_node_tree_sort($tree, $term); + } + return $tree; +} + +function taxonomy_node_tree_build($nodes, $terms) { + $tree = taxonomy_node_tree_index($nodes, $terms); + $tree = taxonomy_node_tree_relation($tree); + $tree = taxonomy_node_tree_hierarchy($tree); + return $tree; +} + +/** + * Menu callback. + * + * @TODO: revamp + */ +function taxonomy_node_tree($tid = 0, $vid = 1, $type = NULL) { + if ($type) { + // TODO: validate $type before sql query + $type = ' AND node.type = "'. $type .'"'; } + // Select nodes and terms + if ($tid != 0) { + + // First render all nodes whose parent is $term + $output = ''; + $nodes = taxonomy_select_nodes(array($tid)); + + while ($node = db_fetch_object($nodes)) { + $link['title'] = $node->title; + $link['href'] = 'node/' . $node->nid; + $output .= theme('taxonomy_node_tree_link', $link); + } + + // Render other child nodes + + $terms = taxonomy_node_tree_taxonomy_get_tree($vid, $tid); + foreach ($terms as $term) { + $filter[] = $term->tid; + } + + $query = 'SELECT node.nid, node.title, term_node.tid FROM {node} LEFT JOIN + {term_node} ON term_node.nid = node.nid WHERE term_node.tid IN (%s) + AND node.status = "1"'; + $query .= $type; + $result = db_query(db_rewrite_sql($query), implode(',', $filter)); + } + else { + $query = 'SELECT node.nid, node.title, term_node.tid FROM {node} LEFT JOIN + {term_node} ON term_node.nid = node.nid WHERE term_node.tid IN + (SELECT tid FROM {term_data} WHERE vid = "%d" AND node.status = "1")'; + $query .= $type; + $result = db_query(db_rewrite_sql($query)); + } + + + $tree = taxonomy_node_tree_build($result, $terms); + // format output $output .= '<ul id="drw_item" class="hidden">'; foreach ($tree as $term) { @@ -112,20 +220,6 @@ function taxonomy_render_tree($tid = 0, $vid) { exit(); } -function taxonomy_node_tree_build_tree(&$tree, $term) { - if ($term->parents[0] != 0 && isset($tree[$term->parents[0]])) { - // is child - if (isset($term->children)) { - // is also parent, so go down one level - foreach($term->children as $child) { - taxonomy_node_tree_build_tree($tree, $tree[$child]); - } - } - $tree[$term->parents[0]]->below[] = drupal_clone($term); - unset($tree[$term->tid]); - } -} - /** * Recursively build the menu. * |