From dfb095a26267f8b68b40add03dfe407966c49b92 Mon Sep 17 00:00:00 2001
From: Bharat Mediratta <bharat@menalto.com>
Date: Sat, 7 Aug 2010 22:18:28 -0700
Subject: Add the ability to replace the source data file in
 Item_Model::save(). Refactor the rotate code in Quick_Controller to replace
 the data file, and then have gallery_event::item_updated_data_file() pick up
 after the change is saved, rebuild the image and handle album covers.  This
 is much more portable than before and it will allow any mechanism (eg: REST)
 to replace the source image.

---
 modules/gallery/models/item.php | 74 +++++++++++++++++++++++++++--------------
 1 file changed, 49 insertions(+), 25 deletions(-)

(limited to 'modules/gallery/models')

diff --git a/modules/gallery/models/item.php b/modules/gallery/models/item.php
index c00b7972..5257bbb9 100644
--- a/modules/gallery/models/item.php
+++ b/modules/gallery/models/item.php
@@ -316,7 +316,7 @@ class Item_Model extends ORM_MPTT {
     unset($significant_changes["relative_url_cache"]);
     unset($significant_changes["relative_path_cache"]);
 
-    if (!empty($this->changed) && $significant_changes) {
+    if ((!empty($this->changed) && $significant_changes) || isset($this->data_file)) {
       $this->updated = time();
       if (!$this->loaded()) {
         // Create a new item.
@@ -341,30 +341,19 @@ class Item_Model extends ORM_MPTT {
         }
 
         // Get the width, height and mime type from our data file for photos and movies.
-        if ($this->is_movie() || $this->is_photo()) {
-          $pi = pathinfo($this->data_file);
-
+        if ($this->is_photo() || $this->is_movie()) {
           if ($this->is_photo()) {
-            $image_info = getimagesize($this->data_file);
-            $this->width = $image_info[0];
-            $this->height = $image_info[1];
-            $this->mime_type = $image_info["mime"];
-
-            // Force an extension onto the name if necessary
-            if (empty($pi["extension"])) {
-              $pi["extension"] = image_type_to_extension($image_info[2], false);
-              $this->name .= "." . $pi["extension"];
-            }
-          } else {
-            list ($this->width, $this->height) = movie::getmoviesize($this->data_file);
-
-            // No extension?  Assume FLV.
-            if (empty($pi["extension"])) {
-              $pi["extension"] = "flv";
-              $this->name .= "." . $pi["extension"];
-            }
+            list ($this->width, $this->height, $this->mime_type, $extension) =
+              photo::get_file_metadata($this->data_file);
+          } else if ($this->is_movie()) {
+            list ($this->width, $this->height, $this->mime_type, $extension) =
+              movie::get_file_metadata($this->data_file);
+          }
 
-            $this->mime_type = in_array(strtolower($pi["extension"]), array("mp4", "m4v")) ? "video/mp4" : "video/x-flv";
+          // Force an extension onto the name if necessary
+          $pi = pathinfo($this->data_file);
+          if (empty($pi["extension"])) {
+            $this->name = "{$this->name}.$extension";
           }
         }
 
@@ -479,7 +468,30 @@ class Item_Model extends ORM_MPTT {
             ->execute();
         }
 
+        // Replace the data file, if requested.
+        // @todo: we don't handle the case where you swap in a file of a different mime type
+        //        should we prevent that in validation?  or in set_data_file()
+        if ($this->data_file && ($this->is_photo() || $this->is_movie())) {
+          copy($this->data_file, $this->file_path());
+
+          // Get the width, height and mime type from our data file for photos and movies.
+          if ($this->is_photo()) {
+            list ($this->width, $this->height) = photo::get_file_metadata($this->file_path());
+          } else if ($this->is_movie()) {
+            list ($this->width, $this->height) = movie::get_file_metadata($this->file_path());
+          }
+          $this->thumb_dirty = 1;
+          $this->resize_dirty = 1;
+        }
+
         module::event("item_updated", $original, $this);
+
+        if ($this->data_file) {
+          // Null out the data file variable here, otherwise this event will trigger another
+          // save() which will think that we're doing another file move.
+          $this->data_file = null;
+          module::event("item_updated_data_file", $this);
+        }
       }
     } else if (!empty($this->changed)) {
       // Insignificant changes only.  Don't fire events or do any special checking to try to keep
@@ -765,8 +777,9 @@ class Item_Model extends ORM_MPTT {
         $this->rules["slug"] = array();
       }
 
-      // Movies and photos must have data files
-      if (($this->is_photo() || $this->is_movie()) && !$this->loaded()) {
+      // Movies and photos must have data files.  Verify the data file on new items, or if it has
+      // been replaced.
+      if (($this->is_photo() || $this->is_movie()) && $this->data_file) {
         $this->rules["name"]["callbacks"][] = array($this, "valid_data_file");
       }
     }
@@ -842,6 +855,17 @@ class Item_Model extends ORM_MPTT {
     } else if (filesize($this->data_file) == 0) {
       $v->add_error("name", "empty_data_file");
     }
+
+    if ($this->loaded()) {
+      if ($this->is_photo()) {
+        list ($a, $b, $mime_type) = photo::get_file_metadata($this->data_file);
+      } else if ($this->is_movie()) {
+        list ($a, $b, $mime_type) = movie::get_file_metadata($this->data_file);
+      }
+      if ($mime_type != $this->mime_type) {
+        $v->add_error("name", "cant_change_mime_type");
+      }
+    }
   }
 
   /**
-- 
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