From 163cca42f0d572f080ba7d31407053587f60f0f0 Mon Sep 17 00:00:00 2001
From: Silvio <s1lv10@uol.com.br>
Date: Fri, 16 Oct 2009 11:03:22 -0300
Subject: First version with working functions
---
taxonomy_node_tree.module | 202 +++++++++++++++++++++++++++++++++-------------
1 file 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.
*
--
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