Initial commit

2013-07-20 17:41:56 -05:00
commit 3b1e713fc4
606 changed files with 136001 additions and 0 deletions
--- a/pluf/src/Pluf/SQL.php
+++ b/pluf/src/Pluf/SQL.php
@@ -0,0 +1,138 @@
+<?php
+/* -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+# ***** BEGIN LICENSE BLOCK *****
+# This file is part of Plume Framework, a simple PHP Application Framework.
+# Copyright (C) 2001-2007 Loic d'Anterroches and contributors.
+#
+# Plume Framework is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation; either version 2.1 of the License, or
+# (at your option) any later version.
+#
+# Plume Framework 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 Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+#
+# ***** END LICENSE BLOCK ***** */
+
+/**
+ * Generate the WHERE SQL clause in an easy and SQL proof way.
+ */
+class Pluf_SQL
+{
+
+    protected $db;
+    protected $where = '';
+    public $ands = array();
+
+    /**
+     * Construct the constructor with a default condition.
+     */
+    function __construct($base='', $args=array())
+    {
+        $this->db = Pluf::db();
+        if (strlen($base) > 0) {
+            $this->Q($base, $args);
+        }
+    }
+
+    /**
+     * Returns the where clause.
+     *
+     * @return string Where clause without the WHERE
+     */
+    function gen()
+    {
+        return implode(' AND ', $this->ands);
+    }
+
+    /**
+     * Add a condition.
+     *
+     * @param string String to 'interpolate'
+     * @param mixed String or array of parameters (array())
+     */
+    function Q($base, $args=array()) 
+    {
+        $escaped = array();
+        if (!is_array($args)) {
+            $args = array($args);
+        }
+        foreach ($args as $arg) {
+            $escaped[] = $this->db->esc($arg);
+        }
+        $this->ands[] = vsprintf($base, $escaped);
+        return $this;
+    }
+
+    /**
+     * Add another SQL as a AND.
+     *
+     * @param Pluf_SQL Other object to add to the current.
+     */
+    function SAnd($sql)
+    {
+        return $this->SDef($sql);
+    }
+
+    /**
+     * Add another SQL as a OR
+     *
+     * @param Pluf_SQL Other object to add to the current.
+     */
+    function SOr($sql)
+    {
+        return $this->SDef($sql, 'OR');
+    }
+
+    /**
+     * Add another SQL to the current
+     *
+     * @param Pluf_SQL Other object to add to the current.
+     * @param string Type of addition
+     */
+    function SDef($sql, $k='AND')
+    {
+        if (empty($this->ands)) {
+            $this->ands = $sql->ands;
+        } else {
+            $othersql = $sql->gen();
+            $current = $this->gen();
+            if (strlen($othersql)) {
+                $this->ands = array();
+                $this->ands[] = '('.$current.') '.$k.' ('.$othersql.')';
+            }
+        }
+        return $this;
+    }
+
+    /**
+     * Get keywords.
+     *
+     * Considering a query string, explode the query string in
+     * keywords given a defined delimiter.
+     *
+     * @param string Query string
+     * @param string delimiter (' ')
+     * @return array Array of keywords
+     */
+    function keywords($string, $del=' ')
+    {
+        $keys = array();
+        $args = explode($del, $string);
+        foreach ($args as $arg) {
+            $arg = trim($arg);
+            if (strlen($arg) > 0) {
+                $keys[] = $arg;
+            }
+        }
+        return $keys;
+    }
+}
+