Added a helper to jqGrid, since duplicated code is getting spread through each element. The implementation is nowhere near complete, but the basic idea is there.

git-svn-id: file:///svn-source/pmgr/branches/invoice_receipt_20090629@257 97e9348a-65ac-dc4b-aefc-98561f571b83

site/app_controller.php

@@ -35,7 +35,7 @@
  * @subpackage    cake.app
  */
 class AppController extends Controller {
-  var $helpers = array('Html', 'Form', 'Javascript', 'Format', 'Time');
+  var $helpers = array('Html', 'Form', 'Javascript', 'Format', 'Time', 'JqGrid');
   var $components = array('DebugKit.Toolbar');
 
   function sideMenuLinks() {

site/views/helpers/jq_grid.php

@@ -0,0 +1,97 @@
+<?php
+
+class JqGridHelper extends AppHelper {
+
+  var $jqGrid_options;
+  var $included;
+  var $columns;
+
+  function __construct() {
+    $this->reset();
+  }
+
+  function reset() {
+    $this->jqGrid_options
+      = array('limit' => 20);
+
+    $this->columns  = array();
+    $this->included = array();
+    return $this;
+  }
+
+  // Add to the set of columns for this grid
+  function columns($columns) {
+    if (isset($columns)) {
+      if (is_array($columns))
+	$this->columns += $columns;
+      else
+	array_push($this->columns, $columns);
+    }
+    return $this;
+  }
+
+  // Included fields will be included unless excluded.
+  function included($fields) {
+    if (isset($fields)) {
+      if (is_array($fields))
+	$this->included = array_merge($this->included, $fields);
+      else
+	array_push($this->included, $fields);
+    }
+    return $this;
+  }
+
+  function limit() {
+    $this->jqGrid_options['limit'] = 20;
+    return $this;
+  }
+
+  function id_list($items) {
+    $this->jqGrid_options
+      += array('custom_ids' =>
+	       array_map(create_function('$data',
+					 'return $data["id"];'),
+			 $items));
+    return $this;
+  }
+
+  function render($included = array(), $excluded = array()) {
+    pr("<H2>jqGrid</H2>");
+
+    $columns  = $this->columns;
+    $we_want  = $this->included;
+    $they_want = $included;
+    $we_dont_want = array_diff(array_keys($this->columns), $this->included);
+    $they_dont_want = $excluded;
+
+    if (is_bool($included) && $included)
+      $included = array_keys($columns);
+    elseif (is_bool($included) && !$included)
+      $included = array();
+
+    if (is_bool($excluded) && $excluded)
+      $excluded = array_keys($columns);
+    elseif (is_bool($excluded) && !$excluded)
+      $excluded = array();
+
+    $hopefully_wanted = array_merge($this->included, $included);
+    $hopefully_get = array_diff(array_merge($this->included, $included), $excluded);
+
+    $actually_get = array_intersect(array_keys($this->columns), $hopefully_get);
+    $actually_dont_get = array_diff(array_keys($this->columns), $hopefully_get);
+
+    pr(compact('we_want', 'they_want', 'we_dont_want', 'they_dont_want',
+	       'hopefully_wanted', 'hopefully_get',
+	       'actually_get', 'actually_dont_get'));
+
+    // Since we only have one instance of this class
+    // as a helper, we must assume it could be used
+    // again later to render an entirely different grid.
+    // Reset the variables to prevent contamination.
+    $this->reset();
+    return $this;
+  }
+  
+}
+
+