the beginnings of the fake DateInterval class work as expected, going…

… to refactor next;
z2z · Aug 28, 2011 · 3f54fb8 · 3f54fb8
1 parent 372151b
commit 3f54fb8
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Showing 2 changed files with 102 additions and 3 deletions.
diff --git a/includes/backcompat_functions.php b/includes/backcompat_functions.php
@@ -213,4 +213,81 @@ function date_diff2(DateTime $date1, DateTime $date2, $units = 'D') {
 
         return round($difference / $factor, 0);
     }
+
+    /**
+     * DateInterval
+     * Alternative to DateInterval if we're using PHP pre-5.3.0
+     * http://www.php.net/manual/en/class.dateinterval.php
+     * 
+     * @todo Deprecate this as soon as possible.. web2project v4.0?
+     */
+    class DateInterval2 {
+        public $y = 0;
+        public $m = 0;
+        public $d = 0;
+        public $h = 0;
+        public $i = 0;
+        public $s = 0;
+        public $invert = 0;
+        public $days = 0;
+
+        public function __construct($interval_spec) {
+            if ('P' != $interval_spec[0] ) {
+                // is this an exception?
+            }
+            $interval_spec = strtolower($interval_spec);
+            $units  = array_filter(preg_split("/[\d+.]/", $interval_spec));
+            $units  = array_merge(array(), $units);
+            $values = preg_split("/[\D+.]/", $interval_spec);
+
+            $pastMonth = false;
+            foreach ($units as $k => $unit) {
+                switch($unit) {
+                    case 'p':
+                        //do nothing
+                        break;
+                    case 'y':
+                        $this->y = $values[$k];
+                        break;
+                    case 'm':
+                        (!$pastMonth) ? $this->m = $values[$k] : $this->i = $values[$k];
+                        $pastMonth = true;
+                        break;
+                    case 'w':
+                        $this->d = 7 * $values[$k];
+                        $pastMonth = true;
+                        break;                        
+                    case 'd':
+                        $this->d = $values[$k];
+                        $pastMonth = true;
+                        break;
+                    case 'h':
+                        $this->h = $values[$k];
+                        $pastMonth = true;
+                        break;
+                    case 's':
+                        $this->s = $values[$k];
+                        $pastMonth = true;
+                        break;
+                    default:
+                        break;
+                }
+            }
+/*
+$interval = new DateInterval2('P2Y4D6H8M');
+$interval = new DateInterval2('P3WT6H8M');
+$interval = new DateInterval2('P1Y1D');
+$interval = new DateInterval2('P1Y1M37D500M');
+*/
+        }
+        public function _asArray() {
+
+        }
+        public function createFromDateString() {
+
+        }
+        public function format() {
+
+        }
+    }
 }
diff --git a/unit_tests/includes/backcompat_functions.test.php b/unit_tests/includes/backcompat_functions.test.php
@@ -24,8 +24,7 @@
  * @subpackage unit_tests
  */
 class BackCompat_Functions_Test extends PHPUnit_Framework_TestCase {
-
-
+
     public function test_date_diff() {
         $today       = new DateTime('now');
         $plus7_days  = new DateTime('+7 days');
@@ -45,5 +44,28 @@ public function test_date_diff() {
         $this->assertEquals(20 ,    date_diff2($year2010,   $year2030,   'Y'));
         $this->assertEquals(-20,    date_diff2($year2030,   $year2010,   'Y'));
     }
-
+
+    public function test_DateInterval_constructor() {
+
+        $interval = new DateInterval2('P2Y4D6H8M');
+        $this->assertEquals(
+                array('y' => 2, 'm' => 0, 'd' => 4, 'h' => 6, 'i' => 8, 
+                    's' => 0, 'invert' => 0, 'days' => 0), get_object_vars($interval));
+
+        $interval = new DateInterval2('P3W6H8M');
+        $this->assertEquals(
+                array('y' => 0, 'm' => 0, 'd' => 21, 'h' => 6, 'i' => 8, 
+                    's' => 0, 'invert' => 0, 'days' => 0), get_object_vars($interval));
+
+        $interval = new DateInterval2('P1Y1D');
+        $this->assertEquals(
+                array('y' => 1, 'm' => 0, 'd' => 1, 'h' => 0, 'i' => 0, 
+                    's' => 0, 'invert' => 0, 'days' => 0), get_object_vars($interval));
+
+        $interval = new DateInterval2('P1Y1M37D500M');
+        $this->assertEquals(
+                array('y' => 1, 'm' => 1, 'd' => 37, 'h' => 0, 'i' => 500, 
+                    's' => 0, 'invert' => 0, 'days' => 0), get_object_vars($interval));
+        //TODO: test days & invert
+    }
 }