3 files changed, 85 insertions, 4 deletions
diff --git a/classes/MaleteDb.php b/classes/MaleteDb.php
index fd10c78..d420af6 100644
--- a/classes/MaleteDb.php
+++ b/classes/MaleteDb.php
@@ -4,10 +4,29 @@
  * Malete implementation of IsisDb.
  */
 class MaleteDb implements IsisDb {
+  /**
+   * @var $fdt
+   *   Field description table.
+   */
   var $fdt;
+
+  /**
+   * @var $db
+   *   Database resource.
+   */
   var $db;
+
+  /**
+   * @var $format
+   *   Database format, derived from $schema.
+   */
   var $format;
 
+  /**
+   * Constructor.
+   *
+   * @see IsisDb::__construct()
+   */ 
   public function __construct($schema) {
     // Save db schema.
     $this->format = $schema;
@@ -24,6 +43,11 @@ class MaleteDb implements IsisDb {
     }
   }
 
+  /**
+   * Read an entry.
+   *
+   * @see IsisDb::read()
+   */  
   public function read($id) {
     if (!is_numeric($id)) {
       return FALSE;
@@ -37,6 +61,11 @@ class MaleteDb implements IsisDb {
     }
   }
 
+  /**
+   * Return number of rows in the database.
+   *
+   * @see IsisDb::read()
+   */  
   public function rows() {
     $id = 1;
     while($this->db->read($id)) {
@@ -45,11 +74,24 @@ class MaleteDb implements IsisDb {
     return $id - 1;
   }
 
+  /**
+   * Return a default example schema.
+   *
+   * @see IsisDb::default_schema()
+   */  
   public function default_schema() {
     return SchemaDb::default_schema();
   }
 
-  // Tag results of a db query.
+  /**
+   * Tag results of a db query.
+   *
+   * @param $results
+   *   Database query results.
+   *
+   * @return
+   *   Tagged database result.
+   */
   function tag($results) {
     foreach ($results->val as $key => $value) {
       $field = $results->tag[$key];
diff --git a/classes/PhpIsisDb.php b/classes/PhpIsisDb.php
index 4e1aaf0..78c9cf0 100644
--- a/classes/PhpIsisDb.php
+++ b/classes/PhpIsisDb.php
@@ -4,9 +4,23 @@
  * PHP-Isis implementation of IsisDb.
  */
 class PhpIsisDb implements IsisDb {
+  /**
+   * @var $db
+   *   Database resource.
+   */  
   var $db;
+
+  /**
+   * @var $format
+   *   Database format, derived from $schema.
+   */
   var $format;
 
+  /**
+   * Constructor.
+   *
+   * @see IsisDb::__construct()
+   */
   public function __construct($schema) {
     // Save db schema.
     $this->format = $schema;
@@ -21,6 +35,11 @@ class PhpIsisDb implements IsisDb {
     $this->db = isis_open("db/$name/$name");
   }
 
+  /**
+   * Read an entry.
+   *
+   * @see IsisDb::read()
+   */    
   public function read($id) {
     $results = isis_search('$', $this->db);
     if (!isis_data_seek($results, $id)) {
@@ -30,15 +49,33 @@ class PhpIsisDb implements IsisDb {
     return $this->tag(isis_fetch_array($results));
   }
 
+  /**
+   * Return number of rows in the database.
+   *
+   * @see IsisDb::rows()
+   */    
   public function rows() {
     return isis_last_mfn($this->db);
   }
 
+  /**
+   * Return a default example schema.
+   *
+   * @see IsisDb::default_schema()
+   */    
   public function default_schema() {
     return SchemaDb::default_schema();
   }
 
-  // Tag results of a db query.
+  /**
+   * Tag results of a db query.
+   *
+   * @param $results
+   *   Database query results.
+   *
+   * @return
+   *   Tagged database result.
+   */
   function tag($results) {
     foreach ($results as $key => $value) {
       if ($key != 'mfn') {
diff --git a/classes/SchemaDb.php b/classes/SchemaDb.php
index ac5a40e..4cf77e6 100644
--- a/classes/SchemaDb.php
+++ b/classes/SchemaDb.php
@@ -2,8 +2,10 @@
 
 class SchemaDb {
   /**
-   * Schema format example.
-   */
+   * Return a default example schema.
+   *
+   * @see IsisDb::default_schema()
+   */    
   public function default_schema() {
     $schema = array(
       'db'             => array(