From 31250e44a440a8e9162188fd526c9044d24e5299 Mon Sep 17 00:00:00 2001
From: Tim Steiner <tsteiner2@unl.edu>
Date: Mon, 11 Dec 2006 18:47:36 +0000
Subject: [PATCH] Adds support for storing files too large for the database.
---
application/models/rows/File.php | 55 +++++++++++++++++++++++++
application/models/rows/RequestFile.php | 14 +++----
application/models/tables/Files.php | 1 +
3 files changed, 63 insertions(+), 7 deletions(-)
create mode 100644 application/models/rows/File.php
diff --git a/application/models/rows/File.php b/application/models/rows/File.php
new file mode 100644
index 00000000..a96ad019
--- /dev/null
+++ b/application/models/rows/File.php
@@ -0,0 +1,55 @@
+<?php
+
+/**
+ *
+ * @tableClass Files
+ *
+ */
+class File extends Nmc_Db_Table_Row
+{
+ public function __construct($config = array())
+ {
+ parent::__construct($config);
+
+ if (strlen($this->data) == 0
+ && file_exists($this->_getPath() . DIRECTORY_SEPARATOR . $this->hash))
+ {
+ $this->data = file_get_contents($this->_getPath() . DIRECTORY_SEPARATOR . $this->hash);
+ }
+ }
+
+ public function _save()
+ {
+ $oldHash = $this->hash;
+ $this->hash = hash('whirlpool', $this->data);
+ if(strlen($this->data) > ($this->_getMaxPacketSize() / 2)
+ /* && $oldHash != $this->hash*/)
+ {
+ @mkdir($this->_getPath(), 0755, true);
+ file_put_contents($this->_getPath() . DIRECTORY_SEPARATOR . $this->hash, $this->data);
+ $this->data = '';
+ }
+ parent::_save();
+ }
+
+ protected function _getMaxPacketSize()
+ {
+ return 1024 * 1024;
+ $db = Files::getInstance()->getAdapter();
+ $max_packet = $db->query('SELECT @@max_allowed_packet')->fetchAll();
+ $max_packet = $max_packet[0]['@@max_allowed_packet'];
+ return $max_packet;
+ }
+
+ protected function _getPath()
+ {
+ $path = APPLICATION_PATH
+ . DIRECTORY_SEPARATOR
+ . 'uploads'
+ . DIRECTORY_SEPARATOR
+ . substr($this->hash, 0, 1)
+ . DIRECTORY_SEPARATOR
+ . substr($this->hash, 1, 2);
+ return $path;
+ }
+}
\ No newline at end of file
diff --git a/application/models/rows/RequestFile.php b/application/models/rows/RequestFile.php
index 05e499c9..7c1576dd 100644
--- a/application/models/rows/RequestFile.php
+++ b/application/models/rows/RequestFile.php
@@ -1,18 +1,18 @@
<?php
-class RequestFile extends Nmc_Db_Table_Row
+/**
+ *
+ * @tableClass RequestFiles
+ * @foreignKey file
+ *
+ */
+class RequestFile extends File
{
const SYLLABUS_TYPE = 'syllabus';
const CROSSLIST_MEMO_TYPE = 'crosslist memo';
const IS_NARRATIVE_TYPE = 'is_narrative';
const OTHER_TYPE = 'other';
- public function __construct($config = array())
- {
- parent::__construct($config);
-
- $this->_registerRelation(new Nmc_Db_Table_Relation_Extend(Files::getInstance(), $this, 'file'));
- }
}
?>
\ No newline at end of file
diff --git a/application/models/tables/Files.php b/application/models/tables/Files.php
index 3b923242..43a45f72 100644
--- a/application/models/tables/Files.php
+++ b/application/models/tables/Files.php
@@ -3,6 +3,7 @@
/**
*
* @primary file_id
+ * @rowClass File
*
*/
class Files extends Nmc_Db_Table
--
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