Initial import based on other modules

3 files changed, 214 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
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--- /dev/null
+++ b/.gitignore
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+# Ignore any vim temp file
+*.swp
diff --git a/taxonomy_node_tree.info b/taxonomy_node_tree.info
new file mode 100644
index 0000000..8cee7d3
--- /dev/null
+++ b/taxonomy_node_tree.info
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+; $Id$
+name = Taxonomy Node Tree
+description = Shows lists of nodes withing it's taxonomic tree.
+core = 6.x
+version = "6.x-0.1"
+dependencies[] = menu
diff --git a/taxonomy_node_tree.module b/taxonomy_node_tree.module
new file mode 100644
index 0000000..3f6bc32
--- /dev/null
+++ b/taxonomy_node_tree.module
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+<?php
+// $Id$
+
+/**
+ * Drawer logic.
+ */
+function theme_taxonomy_node_tree($menu_name, $mlid) {
+  // Get all terms from a given vocabulary
+  $vocabulary = variable_get('taxonomy_node_tree', '1');
+  $terms      = taxonomy_node_tree_taxonomy_get_tree($vocabulary);
+
+  foreach ($terms as $term) {
+    // Just show parent terms
+    if (taxonomy_get_parents($term->tid) == array()) {
+      $menu[] = $term;
+    }
+  }
+
+  // Build the drawer
+  $output = taxonomy_node_tree_build($menu);
+  return $output;
+}
+
+/**
+ * Drawer rendering.
+ *
+ * @ingroup themeable
+ */
+function taxonomy_node_tree_build($menu) {
+
+  $output  = '<ul id="drw_tabs">';
+  $output .= implode((array) module_invoke_all('taxonomy_node_tree_build'));
+
+  foreach ($menu as $item) {
+    $link['title'] = $item->name;
+    $link['href']  = 'taxonomy_node_tree/' . $item->tid;
+    $output       .= theme('taxonomy_node_tree_link', $link);
+  }
+
+  $output .= '</ul>';
+  $output .= '<div id="drw">';
+  $output .= '</div>';
+  return $output;
+
+}
+
+/**
+ * Menu callback.
+ */
+function taxonomy_node_tree_page($tid = null) {
+  // 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);
+  }
+
+  // Then render all nodes whose terms are children of $term
+  
+  $vocabulary = variable_get('taxonomy_node_tree', '1');
+  $terms      = taxonomy_node_tree_taxonomy_get_tree($vocabulary, $tid);
+
+  foreach ($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"';
+
+  $result = db_query(db_rewrite_sql($query), implode(',', $filter));
+
+  while ($node = db_fetch_object($result)) {
+    foreach ($terms as $term) {
+      // add nodes into the term
+      if ($node->tid == $term->tid) {
+        $term->nodes[] = $node;
+      }
+      // update an index of terms
+      $tree[$term->tid] = $term;
+    }
+  }
+
+  // add children relationship just for terms present in the tree
+  foreach ($tree as $term) {
+    if ($term->parents[0] != 0 && isset($tree[$term->parents[0]])) {
+      $tree[$term->parents[0]]->children[] = $term->tid;
+    }
+  }
+
+  // build menu with hierarchy
+  foreach ($tree as $term) {
+    taxonomy_node_tree_build_tree($tree, $term);
+  }
+
+  // format output
+  $output .= '<ul id="drw_item" class="hidden">';
+  foreach ($tree as $term) {
+    $output .= taxonomy_node_tree_menu_build($term);
+  }
+  $output .= '</ul></li>';
+
+  // Display output
+  echo($output);
+
+  // We need to exit here to avoid themeable output
+  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[$term->tid]);
+  }
+}
+
+/**
+ * Recursively build the menu.
+ *
+ * @ingroup themeable
+ */
+function taxonomy_node_tree_menu_build($term) {
+
+  global $taxonomy_node_tree_id;
+
+  if ($taxonomy_node_tree_id == null) {
+    $taxonomy_node_tree_id = 0;
+  }
+
+  $taxonomy_node_tree_id++;
+
+  if (isset($term->tid)) {
+    $output .= '<li>';
+    $output .= $term->name;
+    if (isset($term->below)) {
+      $output .= '<ul id="taxonomy_node_tree[ul][' . $taxonomy_node_tree_id . ']" class="hidden">';
+      foreach($term->below as $child) {
+        $output .= taxonomy_node_tree_menu_build($child);
+      }
+      $output .= '</ul>';
+    } else if (isset($term->nodes)) {
+      $output .= '<ul id="taxonomy_node_tree[ul][' . $taxonomy_node_tree_id . ']" class="hidden">';
+      foreach ($term->nodes as $node) {
+        $output .= '<li>';
+        $output .= '<a href="' . $GLOBALS['base_url'] . '/sitio/' . $node->nid . '">' . $node->title . '</a>';
+      }
+      $output .= '</ul>';
+      $output .= '</li>';
+    }
+    $output .= '</li>';
+  }
+
+  return $output;
+
+}
+
+/**
+ * Version of taxonomy_get_tree() without caching.
+ */
+function taxonomy_node_tree_taxonomy_get_tree($vid, $parent = 0, $depth = -1, $max_depth = NULL, $cache = FALSE) {
+  static $children, $parents, $terms;
+
+  $depth++;
+
+  // We can cache trees, so it's not CPU-intensive to call get_tree() on a term
+  // and its children, too.
+  if (!$cache && !isset($children[$vid])) {
+    $children[$vid] = array();
+
+    $result = db_query(db_rewrite_sql('SELECT t.tid, t.*, parent FROM {term_data} t INNER JOIN {term_hierarchy} h ON t.tid = h.tid WHERE t.vid = %d ORDER BY weight, name', 't', 'tid'), $vid);
+    while ($term = db_fetch_object($result)) {
+      $children[$vid][$term->parent][] = $term->tid;
+      $parents[$vid][$term->tid][] = $term->parent;
+      $terms[$vid][$term->tid] = $term;
+    }
+  }
+
+  $max_depth = (is_null($max_depth)) ? count($children[$vid]) : $max_depth;
+  $tree = array();
+  if ($max_depth > $depth && !empty($children[$vid][$parent])) {
+    foreach ($children[$vid][$parent] as $child) {
+      $term = drupal_clone($terms[$vid][$child]);
+      $term->depth = $depth;
+      // The "parent" attribute is not useful, as it would show one parent only.
+      unset($term->parent);
+      $term->parents = $parents[$vid][$child];
+      $tree[] = $term;
+      if (!empty($children[$vid][$child])) {
+        $tree = array_merge($tree, taxonomy_get_tree($vid, $child, $depth, $max_depth));
+      }
+    }
+  }
+
+  return $tree;
+}