1 files changed, 73 insertions, 0 deletions
diff --git a/app/frontend/dto/GridEventGroupDTO.php b/app/frontend/dto/GridEventGroupDTO.php
new file mode 100644
index 0000000..5845076
--- /dev/null
+++ b/app/frontend/dto/GridEventGroupDTO.php
@@ -0,0 +1,73 @@
+<?php
+
+Prado::using('Application.dto.GridEventDTO');
+Prado::using('Application.controls.grid.IGridElementDTO');
+
+class GridEventGroupDTO implements IGridElementDTO {
+
+    public $Header;
+    public $Events;
+    public $Calendar;
+    public $GridPosition;
+
+    public function __construct(array $events) {
+        $this->Events = $events;
+        if ($this->Events) {
+            $this->Calendar = $this->Events[0]->Calendar;
+        }
+        usort($this->Events, ['GridEventDTO', '__compare']);
+        $this->Header = $this->_determineCommonHeader($this->Events);
+    }
+
+    public static function __compare(GridEventGroupDTO $ev1, GridEventGroupDTO $ev2) {
+        if ($ev1->GridPosition === NULL || $ev2->GridPosition === NULL) {
+            if (count($ev1->Events) && count($ev2->Events)) {
+                return EventDTO::__compare($ev1->Events[0], $ev2->Events[0]);
+            }
+        }
+        return $ev1->GridPosition - $ev2->GridPosition;
+    }
+
+    private function _determineCommonHeader(array $events) {
+        if (!$events) {
+            return NULL;
+        }
+        $names = array_map(
+            function(EventDTO $event) {
+                return $event->Name;
+            },
+            $events
+        );
+        $prefix = $names[0];
+        $passed = FALSE;
+        while (!$passed && $prefix) {
+            $passed = TRUE;
+            $prefixLength = strlen($prefix);
+            foreach ($names as $name) {
+                if (substr($name, 0, $prefixLength) != $prefix) {
+                    $passed = FALSE;
+                    break;
+                }
+            }
+            if ($passed) {
+                foreach ($names as $name) {
+                    if (is_numeric(trim(substr($name, $prefixLength)))) {
+                        $passed = FALSE;
+                        break;
+                    }
+                }
+            }
+            if (!$passed) {
+                $prefix = substr($prefix, 0, strrpos($prefix, ' '));
+            }
+        }
+        return $prefix ?: $events[0]->Calendar->Name;
+    }
+
+    public function getRendererClass() {
+        return 'Group';
+    }
+
+}
+
+?>