From d5762ebb744f5b4873e6ad779d96b694c8f0839f Mon Sep 17 00:00:00 2001
From: Silvio <silvio@devlet.com.br>
Date: Thu, 1 Jul 2010 14:30:21 -0300
Subject: Adding IsisConnector::getRows() and minor changes

---
 classes/IsisConnector.php        | 22 +++++++++--
 classes/IsisMethodIterator.php   |  3 +-
 classes/IsisSubfieldIterator.php | 85 ++++++++++++++++++----------------------
 3 files changed, 59 insertions(+), 51 deletions(-)

diff --git a/classes/IsisConnector.php b/classes/IsisConnector.php
index 237d139..071736b 100644
--- a/classes/IsisConnector.php
+++ b/classes/IsisConnector.php
@@ -55,6 +55,19 @@ class IsisConnector {
     return array();
   }
 
+  /**
+   * Get the number of resulting rows for a given field.
+   *
+   * @param $field
+   *   Field array.
+   *
+   * @return
+   *   Number of rows.
+   */
+  public function getRows($field) {
+    return count($this->result[$field['name']]);
+  }
+
   /**
    * Get the value of a given field.
    *
@@ -83,8 +96,8 @@ class IsisConnector {
    *   Field data.
    */
   public function getFields($field) {
-    for ($n = 0; $n >= count($this->result[$field['name']]); $n++) {
-      $values[$n] = $this->getField($field, $n);
+    for ($row = 0; $row >= $this->getRows($field); $row++) {
+      $values[$row] = $this->getField($field, $row);
     }
 
     return $values;
@@ -124,8 +137,8 @@ class IsisConnector {
    *   Subfield data.
    */
   public function getSubfields($field, $subfield) {
-    for ($n = 0; $n >= count($this->result[$field['name']]); $n++) {
-      $values[$n] = $this->getSubfield($field, $subfield, $n);
+    for ($row = 0; $row >= $this->getRows($field); $row++) {
+      $values[$row] = $this->getSubfield($field, $subfield, $row);
     }
 
     return $values;
@@ -141,6 +154,7 @@ class IsisConnector {
     if (isset($field['subfields'])) {
       return $field['subfields'];
     }
+
     return array();
   }
 
diff --git a/classes/IsisMethodIterator.php b/classes/IsisMethodIterator.php
index 0cb7dd4..51820ed 100644
--- a/classes/IsisMethodIterator.php
+++ b/classes/IsisMethodIterator.php
@@ -44,7 +44,8 @@ class IsisMethodIterator implements Iterator
   }
 
   /**
-   * Move forward to next element.
+   * Move forward to next element. The method should be callabe, otherwise
+   * we move to the next position.
    */
   function next() {
     do {
diff --git a/classes/IsisSubfieldIterator.php b/classes/IsisSubfieldIterator.php
index 70ff07f..4c6086b 100644
--- a/classes/IsisSubfieldIterator.php
+++ b/classes/IsisSubfieldIterator.php
@@ -3,50 +3,43 @@
 // TODO: not working
 class IsisSubfieldIterator implements Iterator
 {
-    private $position = 0;
-    private $class;
-    private $field;
-    private $subfields;
-    private $keys;
-
-    public function __construct($class, $field)
-    {
-      $this->class     = $class;
-      $this->field     = $field;
-      $this->subfields = $class->getSubfields($field);
-      $this->keys      = array_values($this->subfields);
-      $this->total     = count($this->class->result[$field['name']);
-      print_r($field);
-    }
-
-    function subfield()
-    {
-      return $this->subfields[$this->key()];
-    }
-
-    function rewind()
-    {
-      $this->position = 0;
-    }
-
-    function current()
-    {
-      $value = $this->class->getSubfield($this->field, $this->subfield());
-      return $this->class->explodeValue($value);
-    }
-
-    function key()
-    {
-      return $this->keys[$this->position];
-    }
-
-    function next()
-    {
-      ++$this->position;
-    }
-
-    function valid()
-    {
-      return isset($this->keys[$this->position]) && ($this->current() != null);
-    }
+  private $position = 0;
+  private $class;
+  private $field;
+  private $subfields;
+  private $keys;
+
+  public function __construct($class, $field) {
+    $this->class     = $class;
+    $this->field     = $field;
+    $this->subfields = $class->getSubfields($field);
+    $this->keys      = array_values($this->subfields);
+    $this->total     = count($this->class->result[$field['name']);
+    print_r($field);
+  }
+
+  function subfield() {
+    return $this->subfields[$this->key()];
+  }
+
+  function rewind() {
+    $this->position = 0;
+  }
+
+  function current() {
+    $value = $this->class->getSubfield($this->field, $this->subfield());
+    return $this->class->explodeValue($value);
+  }
+
+  function key() {
+    return $this->keys[$this->position];
+  }
+
+  function next() {
+    ++$this->position;
+  }
+
+  function valid() {
+    return isset($this->keys[$this->position]) && ($this->current() != null);
+  }
 }
-- 
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