updated AR join() to accommodate database prefixes
diff --git a/system/database/DB_active_rec.php b/system/database/DB_active_rec.php
index d27d3dc..1c72528 100644
--- a/system/database/DB_active_rec.php
+++ b/system/database/DB_active_rec.php
@@ -1,887 +1,892 @@
-<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * Code Igniter
- *
- * An open source application development framework for PHP 4.3.2 or newer
- *
- * @package CodeIgniter
- * @author Rick Ellis
- * @copyright Copyright (c) 2006, pMachine, Inc.
- * @license http://www.codeignitor.com/user_guide/license.html
- * @link http://www.codeigniter.com
- * @since Version 1.0
- * @filesource
- */
-
-// ------------------------------------------------------------------------
-
-/**
- * Active Record Class
- *
- * This is the platform-independent base Active Record implementation class.
- *
- * @package CodeIgniter
- * @subpackage Drivers
- * @category Database
- * @author Rick Ellis
- * @link http://www.codeigniter.com/user_guide/database/
- */
-class CI_DB_active_record extends CI_DB_driver {
-
- var $ar_select = array();
- var $ar_distinct = FALSE;
- var $ar_from = array();
- var $ar_join = array();
- var $ar_where = array();
- var $ar_like = array();
- var $ar_groupby = array();
- var $ar_having = array();
- var $ar_limit = FALSE;
- var $ar_offset = FALSE;
- var $ar_order = FALSE;
- var $ar_orderby = array();
- var $ar_set = array();
-
-
- /**
- * Select
- *
- * Generates the SELECT portion of the query
- *
- * @access public
- * @param string
- * @return object
- */
- function select($select = '*')
- {
- if (is_string($select))
- {
- $select = explode(',', $select);
- }
-
- foreach ($select as $val)
- {
- $val = trim($val);
-
- if ($val != '')
- $this->ar_select[] = $val;
- }
- return $this;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * DISTINCT
- *
- * Sets a flag which tells the query string compiler to add DISTINCT
- *
- * @access public
- * @param bool
- * @return object
- */
- function distinct($val = TRUE)
- {
- $this->ar_distinct = (is_bool($val)) ? $val : TRUE;
- return $this;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * From
- *
- * Generates the FROM portion of the query
- *
- * @access public
- * @param mixed can be a string or array
- * @return object
- */
- function from($from)
- {
- foreach ((array)$from as $val)
- {
- $this->ar_from[] = $this->dbprefix.$val;
- }
- return $this;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Join
- *
- * Generates the JOIN portion of the query
- *
- * @access public
- * @param string
- * @param string the join condition
- * @param string the type of join
- * @return object
- */
- function join($table, $cond, $type = '')
- {
- if ($type != '')
- {
- $type = strtoupper(trim($type));
-
- if ( ! in_array($type, array('LEFT', 'RIGHT', 'OUTER', 'INNER', 'LEFT OUTER', 'RIGHT OUTER'), TRUE))
- {
- $type = '';
- }
- else
- {
- $type .= ' ';
- }
- }
-
- // If a DB prefix is used we might need to add it to the column names
- if ($this->dbprefix)
- {
- // First we remove any existing prefixes in the condition to avoid duplicates
- $cond = preg_replace('|('.$this->dbprefix.')([\w\.]+)([\W\s]+)|', "$2$3", $cond);
-
- // Next we add the prefixes to the condition
- $cond = preg_replace('|([\w\.]+)([\W\s]+)(.+)|', $this->dbprefix . "$1$2" . $this->dbprefix . "$3", $cond);
- }
-
- $this->ar_join[] = $type.'JOIN '.$this->dbprefix.$table.' ON '.$cond;
- return $this;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Where
- *
- * Generates the WHERE portion of the query. Separates
- * multiple calls with AND
- *
- * @access public
- * @param mixed
- * @param mixed
- * @return object
- */
- function where($key, $value = NULL)
- {
- return $this->_where($key, $value, 'AND ');
- }
-
- // --------------------------------------------------------------------
-
- /**
- * OR Where
- *
- * Generates the WHERE portion of the query. Separates
- * multiple calls with OR
- *
- * @access public
- * @param mixed
- * @param mixed
- * @return object
- */
- function orwhere($key, $value = NULL)
- {
- return $this->_where($key, $value, 'OR ');
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Where
- *
- * Called by where() or orwhere()
- *
- * @access private
- * @param mixed
- * @param mixed
- * @param string
- * @return object
- */
- function _where($key, $value = NULL, $type = 'AND ')
- {
- if ( ! is_array($key))
- {
- $key = array($key => $value);
- }
-
- foreach ($key as $k => $v)
- {
- $prefix = (count($this->ar_where) == 0) ? '' : $type;
-
- if ( ! is_null($v))
- {
- if ( ! $this->_has_operator($k))
- {
- $k .= ' =';
- }
-
- $v = ' '.$this->escape($v);
- }
-
- $this->ar_where[] = $prefix.$k.$v;
- }
- return $this;
- }
-
-
-
- // --------------------------------------------------------------------
-
- /**
- * Like
- *
- * Generates a %LIKE% portion of the query. Separates
- * multiple calls with AND
- *
- * @access public
- * @param mixed
- * @param mixed
- * @return object
- */
- function like($field, $match = '')
- {
- return $this->_like($field, $match, 'AND ');
- }
-
- // --------------------------------------------------------------------
-
- /**
- * OR Like
- *
- * Generates a %LIKE% portion of the query. Separates
- * multiple calls with OR
- *
- * @access public
- * @param mixed
- * @param mixed
- * @return object
- */
- function orlike($field, $match = '')
- {
- return $this->_like($field, $match, 'OR ');
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Like
- *
- * Called by like() or orlike()
- *
- * @access private
- * @param mixed
- * @param mixed
- * @param string
- * @return object
- */
- function _like($field, $match = '', $type = 'AND ')
- {
- if ( ! is_array($field))
- {
- $field = array($field => $match);
- }
-
- foreach ($field as $k => $v)
- {
- $prefix = (count($this->ar_like) == 0) ? '' : $type;
-
- $v = $this->escape_str($v);
-
- $this->ar_like[] = $prefix." $k LIKE '%{$v}%'";
- }
- return $this;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * GROUP BY
- *
- * @access public
- * @param string
- * @return object
- */
- function groupby($by)
- {
- if (is_string($by))
- {
- $by = explode(',', $by);
- }
-
- foreach ($by as $val)
- {
- $val = trim($val);
-
- if ($val != '')
- $this->ar_groupby[] = $val;
- }
- return $this;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Sets the HAVING value
- *
- * Separates multiple calls with AND
- *
- * @access public
- * @param string
- * @param string
- * @return object
- */
- function having($key, $value = '')
- {
- return $this->_having($key, $value, 'AND ');
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Sets the OR HAVING value
- *
- * Separates multiple calls with OR
- *
- * @access public
- * @param string
- * @param string
- * @return object
- */
- function orhaving($key, $value = '')
- {
- return $this->_having($key, $value, 'OR ');
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Sets the HAVING values
- *
- * Called by having() or orhaving()
- *
- * @access private
- * @param string
- * @param string
- * @return object
- */
- function _having($key, $value = '', $type = 'AND ')
- {
- if ( ! is_array($key))
- {
- $key = array($key => $value);
- }
-
- foreach ($key as $k => $v)
- {
- $prefix = (count($this->ar_having) == 0) ? '' : $type;
-
- if ($v != '')
- {
- $v = ' '.$this->escape($v);
- }
-
- $this->ar_having[] = $prefix.$k.$v;
- }
- return $this;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Sets the ORDER BY value
- *
- * @access public
- * @param string
- * @param string direction: asc or desc
- * @return object
- */
- function orderby($orderby, $direction = '')
- {
- if (trim($direction) != '')
- {
- $direction = (in_array(strtoupper(trim($direction)), array('ASC', 'DESC', 'RAND()'), TRUE)) ? ' '.$direction : ' ASC';
- }
-
- $this->ar_orderby[] = $orderby.$direction;
- return $this;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Sets the LIMIT value
- *
- * @access public
- * @param integer the limit value
- * @param integer the offset value
- * @return object
- */
- function limit($value, $offset = '')
- {
- $this->ar_limit = $value;
-
- if ($offset != '')
- $this->ar_offset = $offset;
-
- return $this;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Sets the OFFSET value
- *
- * @access public
- * @param integer the offset value
- * @return object
- */
- function offset($value)
- {
- $this->ar_offset = $value;
- return $this;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * The "set" function. Allows key/value pairs to be set for inserting or updating
- *
- * @access public
- * @param mixed
- * @param string
- * @return object
- */
- function set($key, $value = '')
- {
- $key = $this->_object_to_array($key);
-
- if ( ! is_array($key))
- {
- $key = array($key => $value);
- }
-
- foreach ($key as $k => $v)
- {
- $this->ar_set[$k] = $this->escape($v);
- }
-
- return $this;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Get
- *
- * Compiles the select statement based on the other functions called
- * and runs the query
- *
- * @access public
- * @param string the limit clause
- * @param string the offset clause
- * @return object
- */
- function get($table = '', $limit = null, $offset = null)
- {
- if ($table != '')
- {
- $this->from($table);
- }
-
- if ( ! is_null($limit))
- {
- $this->limit($limit, $offset);
- }
-
- $sql = $this->_compile_select();
-
- $result = $this->query($sql);
- $this->_reset_select();
- return $result;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * GetWhere
- *
- * Allows the where clause, limit and offset to be added directly
- *
- * @access public
- * @param string the where clause
- * @param string the limit clause
- * @param string the offset clause
- * @return object
- */
- function getwhere($table = '', $where = null, $limit = null, $offset = null)
- {
- if ($table != '')
- {
- $this->from($table);
- }
-
- if ( ! is_null($where))
- {
- $this->where($where);
- }
-
- if ( ! is_null($limit))
- {
- $this->limit($limit, $offset);
- }
-
- $sql = $this->_compile_select();
-
- $result = $this->query($sql);
- $this->_reset_select();
- return $result;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Insert
- *
- * Compiles an insert string and runs the query
- *
- * @access public
- * @param string the table to retrieve the results from
- * @param array an associative array of insert values
- * @return object
- */
- function insert($table = '', $set = NULL)
- {
- if ( ! is_null($set))
- {
- $this->set($set);
- }
-
- if (count($this->ar_set) == 0)
- {
- if ($this->db_debug)
- {
- return $this->display_error('db_must_use_set');
- }
- return FALSE;
- }
-
- if ($table == '')
- {
- if ( ! isset($this->ar_from[0]))
- {
- if ($this->db_debug)
- {
- return $this->display_error('db_must_set_table');
- }
- return FALSE;
- }
-
- $table = $this->ar_from[0];
- }
-
- $sql = $this->_insert($this->dbprefix.$table, array_keys($this->ar_set), array_values($this->ar_set));
-
- $this->_reset_write();
- return $this->query($sql);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Update
- *
- * Compiles an update string and runs the query
- *
- * @access public
- * @param string the table to retrieve the results from
- * @param array an associative array of update values
- * @param mixed the where clause
- * @return object
- */
- function update($table = '', $set = NULL, $where = null)
- {
- if ( ! is_null($set))
- {
- $this->set($set);
- }
-
- if (count($this->ar_set) == 0)
- {
- if ($this->db_debug)
- {
- return $this->display_error('db_must_use_set');
- }
- return FALSE;
- }
-
- if ($table == '')
- {
- if ( ! isset($this->ar_from[0]))
- {
- if ($this->db_debug)
- {
- return $this->display_error('db_must_set_table');
- }
- return FALSE;
- }
-
- $table = $this->ar_from[0];
- }
-
- if ($where != null)
- {
- $this->where($where);
- }
-
- $sql = $this->_update($this->dbprefix.$table, $this->ar_set, $this->ar_where);
-
- $this->_reset_write();
- return $this->query($sql);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Delete
- *
- * Compiles a delete string and runs the query
- *
- * @access public
- * @param string the table to retrieve the results from
- * @param mixed the where clause
- * @return object
- */
- function delete($table = '', $where = '')
- {
- if ($table == '')
- {
- if ( ! isset($this->ar_from[0]))
- {
- if ($this->db_debug)
- {
- return $this->display_error('db_must_set_table');
- }
- return FALSE;
- }
-
- $table = $this->ar_from[0];
- }
-
- if ($where != '')
- {
- $this->where($where);
- }
-
- if (count($this->ar_where) == 0)
- {
- if ($this->db_debug)
- {
- return $this->display_error('db_del_must_use_where');
- }
- return FALSE;
- }
-
- $sql = $this->_delete($this->dbprefix.$table, $this->ar_where);
-
- $this->_reset_write();
- return $this->query($sql);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Use Table - DEPRECATED
- *
- * @deprecated use $this->db->from instead
- */
- function use_table($table)
- {
- return $this->from($table);
- return $this;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * ORDER BY - DEPRECATED
- *
- * @deprecated use $this->db->orderby() instead
- */
- function order_by($orderby, $direction = '')
- {
- return $this->orderby($orderby, $direction);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Tests whether the string has an SQL operator
- *
- * @access private
- * @param string
- * @return bool
- */
- function _has_operator($str)
- {
- $str = trim($str);
- if ( ! preg_match("/(\s|<|>|!|=|is null|is not null)/i", $str))
- {
- return FALSE;
- }
-
- return TRUE;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Compile the SELECT statement
- *
- * Generates a query string based on which functions were used.
- * Should not be called directly. The get() function calls it.
- *
- * @access private
- * @return string
- */
- function _compile_select()
- {
- $sql = ( ! $this->ar_distinct) ? 'SELECT ' : 'SELECT DISTINCT ';
-
- $sql .= (count($this->ar_select) == 0) ? '*' : implode(', ', $this->ar_select);
-
- if (count($this->ar_from) > 0)
- {
- $sql .= "\nFROM ";
- $sql .= implode(', ', $this->ar_from);
- }
-
- if (count($this->ar_join) > 0)
- {
- $sql .= "\n";
- $sql .= implode("\n", $this->ar_join);
- }
-
- if (count($this->ar_where) > 0 OR count($this->ar_like) > 0)
- {
- $sql .= "\nWHERE ";
- }
-
- $sql .= implode("\n", $this->ar_where);
-
- if (count($this->ar_like) > 0)
- {
- if (count($this->ar_where) > 0)
- {
- $sql .= " AND ";
- }
-
- $sql .= implode("\n", $this->ar_like);
- }
-
- if (count($this->ar_groupby) > 0)
- {
- $sql .= "\nGROUP BY ";
- $sql .= implode(', ', $this->ar_groupby);
- }
-
- if (count($this->ar_having) > 0)
- {
- $sql .= "\nHAVING ";
- $sql .= implode("\n", $this->ar_having);
- }
-
- if (count($this->ar_orderby) > 0)
- {
- $sql .= "\nORDER BY ";
- $sql .= implode(', ', $this->ar_orderby);
-
- if ($this->ar_order !== FALSE)
- {
- $sql .= ($this->ar_order == 'desc') ? ' DESC' : ' ASC';
- }
- }
-
- if (is_numeric($this->ar_limit))
- {
- $sql .= "\n";
- $sql = $this->_limit($sql, $this->ar_limit, $this->ar_offset);
- }
-
- return $sql;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Object to Array
- *
- * Takes an object as input and converts the class variables to array key/vals
- *
- * @access public
- * @param object
- * @return array
- */
- function _object_to_array($object)
- {
- if ( ! is_object($object))
- {
- return $object;
- }
-
- $array = array();
- foreach (get_object_vars($object) as $key => $val)
- {
- if ( ! is_object($val) AND ! is_array($val))
- {
- $array[$key] = $val;
- }
- }
-
- return $array;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Resets the active record values. Called by the get() function
- *
- * @access private
- * @return void
- */
- function _reset_select()
- {
- $this->ar_select = array();
- $this->ar_distinct = FALSE;
- $this->ar_from = array();
- $this->ar_join = array();
- $this->ar_where = array();
- $this->ar_like = array();
- $this->ar_groupby = array();
- $this->ar_having = array();
- $this->ar_limit = FALSE;
- $this->ar_offset = FALSE;
- $this->ar_order = FALSE;
- $this->ar_orderby = array();
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Resets the active record "write" values.
- *
- * Called by the insert() or update() functions
- *
- * @access private
- * @return void
- */
- function _reset_write()
- {
- $this->ar_set = array();
- $this->ar_from = array();
- $this->ar_where = array();
- }
-
-}
-
+<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * Code Igniter
+ *
+ * An open source application development framework for PHP 4.3.2 or newer
+ *
+ * @package CodeIgniter
+ * @author Rick Ellis
+ * @copyright Copyright (c) 2006, pMachine, Inc.
+ * @license http://www.codeignitor.com/user_guide/license.html
+ * @link http://www.codeigniter.com
+ * @since Version 1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * Active Record Class
+ *
+ * This is the platform-independent base Active Record implementation class.
+ *
+ * @package CodeIgniter
+ * @subpackage Drivers
+ * @category Database
+ * @author Rick Ellis
+ * @link http://www.codeigniter.com/user_guide/database/
+ */
+class CI_DB_active_record extends CI_DB_driver {
+
+ var $ar_select = array();
+ var $ar_distinct = FALSE;
+ var $ar_from = array();
+ var $ar_join = array();
+ var $ar_where = array();
+ var $ar_like = array();
+ var $ar_groupby = array();
+ var $ar_having = array();
+ var $ar_limit = FALSE;
+ var $ar_offset = FALSE;
+ var $ar_order = FALSE;
+ var $ar_orderby = array();
+ var $ar_set = array();
+
+
+ /**
+ * Select
+ *
+ * Generates the SELECT portion of the query
+ *
+ * @access public
+ * @param string
+ * @return object
+ */
+ function select($select = '*')
+ {
+ if (is_string($select))
+ {
+ $select = explode(',', $select);
+ }
+
+ foreach ($select as $val)
+ {
+ $val = trim($val);
+
+ if ($val != '')
+ $this->ar_select[] = $val;
+ }
+ return $this;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * DISTINCT
+ *
+ * Sets a flag which tells the query string compiler to add DISTINCT
+ *
+ * @access public
+ * @param bool
+ * @return object
+ */
+ function distinct($val = TRUE)
+ {
+ $this->ar_distinct = (is_bool($val)) ? $val : TRUE;
+ return $this;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * From
+ *
+ * Generates the FROM portion of the query
+ *
+ * @access public
+ * @param mixed can be a string or array
+ * @return object
+ */
+ function from($from)
+ {
+ foreach ((array)$from as $val)
+ {
+ $this->ar_from[] = $this->dbprefix.$val;
+ }
+ return $this;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Join
+ *
+ * Generates the JOIN portion of the query
+ *
+ * @access public
+ * @param string
+ * @param string the join condition
+ * @param string the type of join
+ * @return object
+ */
+ function join($table, $cond, $type = '')
+ {
+ if ($type != '')
+ {
+ $type = strtoupper(trim($type));
+
+ if ( ! in_array($type, array('LEFT', 'RIGHT', 'OUTER', 'INNER', 'LEFT OUTER', 'RIGHT OUTER'), TRUE))
+ {
+ $type = '';
+ }
+ else
+ {
+ $type .= ' ';
+ }
+ }
+
+ if ($this->dbprefix)
+ {
+ $cond = preg_replace('|([\w\.]+)([\W\s]+)(.+)|', $this->dbprefix . "$1$2" . $this->dbprefix . "$3", $cond);
+ }
+
+ // If a DB prefix is used we might need to add it to the column names
+ if ($this->dbprefix)
+ {
+ // First we remove any existing prefixes in the condition to avoid duplicates
+ $cond = preg_replace('|('.$this->dbprefix.')([\w\.]+)([\W\s]+)|', "$2$3", $cond);
+
+ // Next we add the prefixes to the condition
+ $cond = preg_replace('|([\w\.]+)([\W\s]+)(.+)|', $this->dbprefix . "$1$2" . $this->dbprefix . "$3", $cond);
+ }
+
+ $this->ar_join[] = $type.'JOIN '.$this->dbprefix.$table.' ON '.$cond;
+ return $this;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Where
+ *
+ * Generates the WHERE portion of the query. Separates
+ * multiple calls with AND
+ *
+ * @access public
+ * @param mixed
+ * @param mixed
+ * @return object
+ */
+ function where($key, $value = NULL)
+ {
+ return $this->_where($key, $value, 'AND ');
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * OR Where
+ *
+ * Generates the WHERE portion of the query. Separates
+ * multiple calls with OR
+ *
+ * @access public
+ * @param mixed
+ * @param mixed
+ * @return object
+ */
+ function orwhere($key, $value = NULL)
+ {
+ return $this->_where($key, $value, 'OR ');
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Where
+ *
+ * Called by where() or orwhere()
+ *
+ * @access private
+ * @param mixed
+ * @param mixed
+ * @param string
+ * @return object
+ */
+ function _where($key, $value = NULL, $type = 'AND ')
+ {
+ if ( ! is_array($key))
+ {
+ $key = array($key => $value);
+ }
+
+ foreach ($key as $k => $v)
+ {
+ $prefix = (count($this->ar_where) == 0) ? '' : $type;
+
+ if ( ! is_null($v))
+ {
+ if ( ! $this->_has_operator($k))
+ {
+ $k .= ' =';
+ }
+
+ $v = ' '.$this->escape($v);
+ }
+
+ $this->ar_where[] = $prefix.$k.$v;
+ }
+ return $this;
+ }
+
+
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Like
+ *
+ * Generates a %LIKE% portion of the query. Separates
+ * multiple calls with AND
+ *
+ * @access public
+ * @param mixed
+ * @param mixed
+ * @return object
+ */
+ function like($field, $match = '')
+ {
+ return $this->_like($field, $match, 'AND ');
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * OR Like
+ *
+ * Generates a %LIKE% portion of the query. Separates
+ * multiple calls with OR
+ *
+ * @access public
+ * @param mixed
+ * @param mixed
+ * @return object
+ */
+ function orlike($field, $match = '')
+ {
+ return $this->_like($field, $match, 'OR ');
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Like
+ *
+ * Called by like() or orlike()
+ *
+ * @access private
+ * @param mixed
+ * @param mixed
+ * @param string
+ * @return object
+ */
+ function _like($field, $match = '', $type = 'AND ')
+ {
+ if ( ! is_array($field))
+ {
+ $field = array($field => $match);
+ }
+
+ foreach ($field as $k => $v)
+ {
+ $prefix = (count($this->ar_like) == 0) ? '' : $type;
+
+ $v = $this->escape_str($v);
+
+ $this->ar_like[] = $prefix." $k LIKE '%{$v}%'";
+ }
+ return $this;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * GROUP BY
+ *
+ * @access public
+ * @param string
+ * @return object
+ */
+ function groupby($by)
+ {
+ if (is_string($by))
+ {
+ $by = explode(',', $by);
+ }
+
+ foreach ($by as $val)
+ {
+ $val = trim($val);
+
+ if ($val != '')
+ $this->ar_groupby[] = $val;
+ }
+ return $this;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Sets the HAVING value
+ *
+ * Separates multiple calls with AND
+ *
+ * @access public
+ * @param string
+ * @param string
+ * @return object
+ */
+ function having($key, $value = '')
+ {
+ return $this->_having($key, $value, 'AND ');
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Sets the OR HAVING value
+ *
+ * Separates multiple calls with OR
+ *
+ * @access public
+ * @param string
+ * @param string
+ * @return object
+ */
+ function orhaving($key, $value = '')
+ {
+ return $this->_having($key, $value, 'OR ');
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Sets the HAVING values
+ *
+ * Called by having() or orhaving()
+ *
+ * @access private
+ * @param string
+ * @param string
+ * @return object
+ */
+ function _having($key, $value = '', $type = 'AND ')
+ {
+ if ( ! is_array($key))
+ {
+ $key = array($key => $value);
+ }
+
+ foreach ($key as $k => $v)
+ {
+ $prefix = (count($this->ar_having) == 0) ? '' : $type;
+
+ if ($v != '')
+ {
+ $v = ' '.$this->escape($v);
+ }
+
+ $this->ar_having[] = $prefix.$k.$v;
+ }
+ return $this;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Sets the ORDER BY value
+ *
+ * @access public
+ * @param string
+ * @param string direction: asc or desc
+ * @return object
+ */
+ function orderby($orderby, $direction = '')
+ {
+ if (trim($direction) != '')
+ {
+ $direction = (in_array(strtoupper(trim($direction)), array('ASC', 'DESC', 'RAND()'), TRUE)) ? ' '.$direction : ' ASC';
+ }
+
+ $this->ar_orderby[] = $orderby.$direction;
+ return $this;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Sets the LIMIT value
+ *
+ * @access public
+ * @param integer the limit value
+ * @param integer the offset value
+ * @return object
+ */
+ function limit($value, $offset = '')
+ {
+ $this->ar_limit = $value;
+
+ if ($offset != '')
+ $this->ar_offset = $offset;
+
+ return $this;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Sets the OFFSET value
+ *
+ * @access public
+ * @param integer the offset value
+ * @return object
+ */
+ function offset($value)
+ {
+ $this->ar_offset = $value;
+ return $this;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * The "set" function. Allows key/value pairs to be set for inserting or updating
+ *
+ * @access public
+ * @param mixed
+ * @param string
+ * @return object
+ */
+ function set($key, $value = '')
+ {
+ $key = $this->_object_to_array($key);
+
+ if ( ! is_array($key))
+ {
+ $key = array($key => $value);
+ }
+
+ foreach ($key as $k => $v)
+ {
+ $this->ar_set[$k] = $this->escape($v);
+ }
+
+ return $this;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Get
+ *
+ * Compiles the select statement based on the other functions called
+ * and runs the query
+ *
+ * @access public
+ * @param string the limit clause
+ * @param string the offset clause
+ * @return object
+ */
+ function get($table = '', $limit = null, $offset = null)
+ {
+ if ($table != '')
+ {
+ $this->from($table);
+ }
+
+ if ( ! is_null($limit))
+ {
+ $this->limit($limit, $offset);
+ }
+
+ $sql = $this->_compile_select();
+
+ $result = $this->query($sql);
+ $this->_reset_select();
+ return $result;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * GetWhere
+ *
+ * Allows the where clause, limit and offset to be added directly
+ *
+ * @access public
+ * @param string the where clause
+ * @param string the limit clause
+ * @param string the offset clause
+ * @return object
+ */
+ function getwhere($table = '', $where = null, $limit = null, $offset = null)
+ {
+ if ($table != '')
+ {
+ $this->from($table);
+ }
+
+ if ( ! is_null($where))
+ {
+ $this->where($where);
+ }
+
+ if ( ! is_null($limit))
+ {
+ $this->limit($limit, $offset);
+ }
+
+ $sql = $this->_compile_select();
+
+ $result = $this->query($sql);
+ $this->_reset_select();
+ return $result;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Insert
+ *
+ * Compiles an insert string and runs the query
+ *
+ * @access public
+ * @param string the table to retrieve the results from
+ * @param array an associative array of insert values
+ * @return object
+ */
+ function insert($table = '', $set = NULL)
+ {
+ if ( ! is_null($set))
+ {
+ $this->set($set);
+ }
+
+ if (count($this->ar_set) == 0)
+ {
+ if ($this->db_debug)
+ {
+ return $this->display_error('db_must_use_set');
+ }
+ return FALSE;
+ }
+
+ if ($table == '')
+ {
+ if ( ! isset($this->ar_from[0]))
+ {
+ if ($this->db_debug)
+ {
+ return $this->display_error('db_must_set_table');
+ }
+ return FALSE;
+ }
+
+ $table = $this->ar_from[0];
+ }
+
+ $sql = $this->_insert($this->dbprefix.$table, array_keys($this->ar_set), array_values($this->ar_set));
+
+ $this->_reset_write();
+ return $this->query($sql);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Update
+ *
+ * Compiles an update string and runs the query
+ *
+ * @access public
+ * @param string the table to retrieve the results from
+ * @param array an associative array of update values
+ * @param mixed the where clause
+ * @return object
+ */
+ function update($table = '', $set = NULL, $where = null)
+ {
+ if ( ! is_null($set))
+ {
+ $this->set($set);
+ }
+
+ if (count($this->ar_set) == 0)
+ {
+ if ($this->db_debug)
+ {
+ return $this->display_error('db_must_use_set');
+ }
+ return FALSE;
+ }
+
+ if ($table == '')
+ {
+ if ( ! isset($this->ar_from[0]))
+ {
+ if ($this->db_debug)
+ {
+ return $this->display_error('db_must_set_table');
+ }
+ return FALSE;
+ }
+
+ $table = $this->ar_from[0];
+ }
+
+ if ($where != null)
+ {
+ $this->where($where);
+ }
+
+ $sql = $this->_update($this->dbprefix.$table, $this->ar_set, $this->ar_where);
+
+ $this->_reset_write();
+ return $this->query($sql);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Delete
+ *
+ * Compiles a delete string and runs the query
+ *
+ * @access public
+ * @param string the table to retrieve the results from
+ * @param mixed the where clause
+ * @return object
+ */
+ function delete($table = '', $where = '')
+ {
+ if ($table == '')
+ {
+ if ( ! isset($this->ar_from[0]))
+ {
+ if ($this->db_debug)
+ {
+ return $this->display_error('db_must_set_table');
+ }
+ return FALSE;
+ }
+
+ $table = $this->ar_from[0];
+ }
+
+ if ($where != '')
+ {
+ $this->where($where);
+ }
+
+ if (count($this->ar_where) == 0)
+ {
+ if ($this->db_debug)
+ {
+ return $this->display_error('db_del_must_use_where');
+ }
+ return FALSE;
+ }
+
+ $sql = $this->_delete($this->dbprefix.$table, $this->ar_where);
+
+ $this->_reset_write();
+ return $this->query($sql);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Use Table - DEPRECATED
+ *
+ * @deprecated use $this->db->from instead
+ */
+ function use_table($table)
+ {
+ return $this->from($table);
+ return $this;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * ORDER BY - DEPRECATED
+ *
+ * @deprecated use $this->db->orderby() instead
+ */
+ function order_by($orderby, $direction = '')
+ {
+ return $this->orderby($orderby, $direction);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Tests whether the string has an SQL operator
+ *
+ * @access private
+ * @param string
+ * @return bool
+ */
+ function _has_operator($str)
+ {
+ $str = trim($str);
+ if ( ! preg_match("/(\s|<|>|!|=|is null|is not null)/i", $str))
+ {
+ return FALSE;
+ }
+
+ return TRUE;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Compile the SELECT statement
+ *
+ * Generates a query string based on which functions were used.
+ * Should not be called directly. The get() function calls it.
+ *
+ * @access private
+ * @return string
+ */
+ function _compile_select()
+ {
+ $sql = ( ! $this->ar_distinct) ? 'SELECT ' : 'SELECT DISTINCT ';
+
+ $sql .= (count($this->ar_select) == 0) ? '*' : implode(', ', $this->ar_select);
+
+ if (count($this->ar_from) > 0)
+ {
+ $sql .= "\nFROM ";
+ $sql .= implode(', ', $this->ar_from);
+ }
+
+ if (count($this->ar_join) > 0)
+ {
+ $sql .= "\n";
+ $sql .= implode("\n", $this->ar_join);
+ }
+
+ if (count($this->ar_where) > 0 OR count($this->ar_like) > 0)
+ {
+ $sql .= "\nWHERE ";
+ }
+
+ $sql .= implode("\n", $this->ar_where);
+
+ if (count($this->ar_like) > 0)
+ {
+ if (count($this->ar_where) > 0)
+ {
+ $sql .= " AND ";
+ }
+
+ $sql .= implode("\n", $this->ar_like);
+ }
+
+ if (count($this->ar_groupby) > 0)
+ {
+ $sql .= "\nGROUP BY ";
+ $sql .= implode(', ', $this->ar_groupby);
+ }
+
+ if (count($this->ar_having) > 0)
+ {
+ $sql .= "\nHAVING ";
+ $sql .= implode("\n", $this->ar_having);
+ }
+
+ if (count($this->ar_orderby) > 0)
+ {
+ $sql .= "\nORDER BY ";
+ $sql .= implode(', ', $this->ar_orderby);
+
+ if ($this->ar_order !== FALSE)
+ {
+ $sql .= ($this->ar_order == 'desc') ? ' DESC' : ' ASC';
+ }
+ }
+
+ if (is_numeric($this->ar_limit))
+ {
+ $sql .= "\n";
+ $sql = $this->_limit($sql, $this->ar_limit, $this->ar_offset);
+ }
+
+ return $sql;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Object to Array
+ *
+ * Takes an object as input and converts the class variables to array key/vals
+ *
+ * @access public
+ * @param object
+ * @return array
+ */
+ function _object_to_array($object)
+ {
+ if ( ! is_object($object))
+ {
+ return $object;
+ }
+
+ $array = array();
+ foreach (get_object_vars($object) as $key => $val)
+ {
+ if ( ! is_object($val) AND ! is_array($val))
+ {
+ $array[$key] = $val;
+ }
+ }
+
+ return $array;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Resets the active record values. Called by the get() function
+ *
+ * @access private
+ * @return void
+ */
+ function _reset_select()
+ {
+ $this->ar_select = array();
+ $this->ar_distinct = FALSE;
+ $this->ar_from = array();
+ $this->ar_join = array();
+ $this->ar_where = array();
+ $this->ar_like = array();
+ $this->ar_groupby = array();
+ $this->ar_having = array();
+ $this->ar_limit = FALSE;
+ $this->ar_offset = FALSE;
+ $this->ar_order = FALSE;
+ $this->ar_orderby = array();
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Resets the active record "write" values.
+ *
+ * Called by the insert() or update() functions
+ *
+ * @access private
+ * @return void
+ */
+ function _reset_write()
+ {
+ $this->ar_set = array();
+ $this->ar_from = array();
+ $this->ar_where = array();
+ }
+
+}
+
?>
\ No newline at end of file