From 28b41056e3ea962dce1ad017a3c0a60252195e7a Mon Sep 17 00:00:00 2001
From: Bharat Mediratta <bharat@menalto.com>
Date: Wed, 27 May 2009 15:07:27 -0700
Subject: Restructure things so that the application is now just another
 module. Kohana makes this type of transition fairly straightforward in that
 all controllers/helpers/etc are still located in the cascading filesystem
 without any extra effort, except that I've temporarily added a hack to force
 modules/gallery into the module path.

Rename what's left of "core" to be "application" so that it conforms
more closely to the Kohana standard (basically, just
application/config/config.php which is the minimal thing that you need
in the application directory)

There's still considerable work left to be done here.
---
 modules/gallery/libraries/MY_Database.php | 92 +++++++++++++++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100644 modules/gallery/libraries/MY_Database.php

(limited to 'modules/gallery/libraries/MY_Database.php')

diff --git a/modules/gallery/libraries/MY_Database.php b/modules/gallery/libraries/MY_Database.php
new file mode 100644
index 00000000..c56f16e8
--- /dev/null
+++ b/modules/gallery/libraries/MY_Database.php
@@ -0,0 +1,92 @@
+<?php defined("SYSPATH") or die("No direct script access.");
+/**
+ * Gallery - a web based photo album viewer and editor
+ * Copyright (C) 2000-2009 Bharat Mediratta
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+class Database extends Database_Core {
+  protected $_table_names;
+
+  public function open_paren() {
+    $this->where[] = "(";
+    return $this;
+  }
+
+  public function close_paren() {
+    // Search backwards for the last opening paren and resolve it
+    $i = count($this->where) - 1;
+    $this->where[$i] .= ")";
+    while (--$i >= 0) {
+      if ($this->where[$i] == "(") {
+        // Remove the paren from the where clauses, and add it to the right of the operator of the
+        // next where clause.  If removing the paren makes the next where clause the first element
+        // in the where list, then the operator shouldn't be there.  It's there because we
+        // calculate whether or not we need an operator based on the number of where clauses, and
+        // the open paren seems like a where clause even though it isn't.
+        array_splice($this->where, $i, 1);
+        $this->where[$i] = preg_replace("/^(AND|OR) /", $i ? "\\1 (" : "(", $this->where[$i]);
+        return $this;
+      }
+    }
+
+    throw new Kohana_Database_Exception('database.missing_open_paren');
+  }
+
+  /**
+   * Parse the query string and convert any strings of the form `\([a-zA-Z0-9_]*?)\]
+   * table prefix . $1
+   */
+  public function query($sql = '') {
+    if (!empty($sql)) {
+      $sql = $this->add_table_prefixes($sql);
+    }
+    return parent::query($sql);
+  }
+
+  public function add_table_prefixes($sql) {
+    $prefix = $this->config["table_prefix"];
+    if (strpos($sql, "SHOW TABLES") === 0) {
+      /*
+       * Don't ignore "show tables", otherwise we could have a infinite
+       * @todo this may have to be changed if we support more than mysql
+       */
+      return $sql;
+    } else if (strpos($sql, "CREATE TABLE") === 0) {
+      // Creating a new table add it to the table cache.
+      $open_brace = strpos($sql, "{") + 1;
+      $close_brace = strpos($sql, "}", $open_brace);
+      $name = substr($sql, $open_brace, $close_brace - $open_brace);
+      $this->_table_names["{{$name}}"] = "{$prefix}$name";
+    }
+
+    if (!isset($this->_table_names)) {
+      // This should only run once on the first query
+      $this->_table_names =array();
+      $len = strlen($prefix);
+      foreach($this->list_tables() as $table_name) {
+        if ($len > 0) {
+          $naked_name = strpos($table_name, $prefix) !== 0 ?
+            $table_name : substr($table_name, $len);
+        } else {
+          $naked_name = $table_name;
+        }
+        $this->_table_names["{{$naked_name}}"] = $table_name;
+      }
+    }
+
+    return empty($this->_table_names) ? $sql : strtr($sql, $this->_table_names);
+  }
+}
\ No newline at end of file
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