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foreach ($select as $val) { $val = trim($val); if ($val !== '') { $this->qb_select[] = $val; $this->qb_no_escape[] = $escape; if ($this->qb_caching === TRUE) { $this->qb_cache_select[] = $val; $this->qb_cache_exists[] = 'select'; $this->qb_cache_no_escape[] = $escape; } } } return $this; } // -------------------------------------------------------------------- /** * Select Max * * Generates a SELECT MAX(field) portion of a query * * @param string the field * @param string an alias * @return CI_DB_query_builder */ public function select_max($select = '', $alias = '') { return $this->_max_min_avg_sum($select, $alias, 'MAX'); } // -------------------------------------------------------------------- /** * Select Min * * Generates a SELECT MIN(field) portion of a query * * @param string the field * @param string an alias * @return CI_DB_query_builder */ public function select_min($select = '', $alias = '') { return $this->_max_min_avg_sum($select, $alias, 'MIN'); } // -------------------------------------------------------------------- /** * Select Average * * Generates a SELECT AVG(field) portion of a query * * @param string the field * @param string an alias * @return CI_DB_query_builder */ public function select_avg($select = '', $alias = '') { return $this->_max_min_avg_sum($select, $alias, 'AVG'); } // -------------------------------------------------------------------- /** * Select Sum * * Generates a SELECT SUM(field) portion of a query * * @param string the field * @param string an alias * @return CI_DB_query_builder */ public function select_sum($select = '', $alias = '') { return $this->_max_min_avg_sum($select, $alias, 'SUM'); } // -------------------------------------------------------------------- /** * SELECT [MAX|MIN|AVG|SUM]() * * @used-by select_max() * @used-by select_min() * @used-by select_avg() * @used-by select_sum() * * @param string $select Field name * @param string $alias * @param string $type * @return CI_DB_query_builder */ protected function _max_min_avg_sum($select = '', $alias = '', $type = 'MAX') { if ( ! is_string($select) OR $select === '') { $this->display_error('db_invalid_query'); } $type = strtoupper($type); if ( ! in_array($type, array('MAX', 'MIN', 'AVG', 'SUM'))) { show_error('Invalid function type: '.$type); } if ($alias === '') { $alias = $this->_create_alias_from_table(trim($select)); } $sql = $type.'('.$this->protect_identifiers(trim($select)).') AS '.$this->escape_identifiers(trim($alias)); $this->qb_select[] = $sql; $this->qb_no_escape[] = NULL; if ($this->qb_caching === TRUE) { $this->qb_cache_select[] = $sql; $this->qb_cache_exists[] = 'select'; } return $this; } // -------------------------------------------------------------------- /** * Determines the alias name based on the table * * @param string $item * @return string */ protected function _create_alias_from_table($item) { if (strpos($item, '.') !== FALSE) { $item = explode('.', $item); return end($item); } return $item; } // -------------------------------------------------------------------- /** * DISTINCT * * Sets a flag which tells the query string compiler to add DISTINCT * * @param bool $val * @return CI_DB_query_builder */ public function distinct($val = TRUE) { $this->qb_distinct = is_bool($val) ? $val : TRUE; return $this; } // -------------------------------------------------------------------- /** * From * * Generates the FROM portion of the query * * @param mixed $from can be a string or array * @return CI_DB_query_builder */ public function from($from) { foreach ((array) $from as $val) { if (strpos($val, ',') !== FALSE) { foreach (explode(',', $val) as $v) { $v = trim($v); $this->_track_aliases($v); $this->qb_from[] = $v = $this->protect_identifiers($v, TRUE, NULL, FALSE); if ($this->qb_caching === TRUE) { $this->qb_cache_from[] = $v; $this->qb_cache_exists[] = 'from'; } } } else { $val = trim($val); // Extract any aliases that might exist. We use this information // in the protect_identifiers to know whether to add a table prefix $this->_track_aliases($val); $this->qb_from[] = $val = $this->protect_identifiers($val, TRUE, NULL, FALSE); if ($this->qb_caching === TRUE) { $this->qb_cache_from[] = $val; $this->qb_cache_exists[] = 'from'; } } } return $this; } // -------------------------------------------------------------------- /** * JOIN * * Generates the JOIN portion of the query * * @param string * @param string the join condition * @param string the type of join * @param string whether not to try to escape identifiers * @return CI_DB_query_builder */ public function join($table, $cond, $type = '', $escape = NULL) { if ($type !== '') { $type = strtoupper(trim($type)); if ( ! in_array($type, array('LEFT', 'RIGHT', 'OUTER', 'INNER', 'LEFT OUTER', 'RIGHT OUTER'), TRUE)) { $type = ''; } else { $type .= ' '; } } // Extract any aliases that might exist. We use this information // in the protect_identifiers to know whether to add a table prefix $this->_track_aliases($table); is_bool($escape) OR $escape = $this->_protect_identifiers; if ( ! $this->_has_operator($cond)) { $cond = ' USING ('.($escape ? $this->escape_identifiers($cond) : $cond).')'; } elseif ($escape === FALSE) { $cond = ' ON '.$cond; } else { // Split multiple conditions if (preg_match_all('/\sAND\s|\sOR\s/i', $cond, $joints, PREG_OFFSET_CAPTURE)) { $conditions = array(); $joints = $joints[0]; array_unshift($joints, array('', 0)); for ($i = count($joints) - 1, $pos = strlen($cond); $i >= 0; $i--) { $joints[$i][1] += strlen($joints[$i][0]); // offset $conditions[$i] = substr($cond, $joints[$i][1], $pos - $joints[$i][1]); $pos = $joints[$i][1] - strlen($joints[$i][0]); $joints[$i] = $joints[$i][0]; } } else { $conditions = array($cond); $joints = array(''); } $cond = ' ON '; for ($i = 0, $c = count($conditions); $i < $c; $i++) { $operator = $this->_get_operator($conditions[$i]); $cond .= $joints[$i]; $cond .= preg_match("/(\(*)?([\[\]\w\.'-]+)".preg_quote($operator)."(.*)/i", $conditions[$i], $match) ? $match[1].$this->protect_identifiers($match[2]).$operator.$this->protect_identifiers($match[3]) : $conditions[$i]; } } // Do we want to escape the table name? if ($escape === TRUE) { $table = $this->protect_identifiers($table, TRUE, NULL, FALSE); } // Assemble the JOIN statement $this->qb_join[] = $join = $type.'JOIN '.$table.$cond; if ($this->qb_caching === TRUE) { $this->qb_cache_join[] = $join; $this->qb_cache_exists[] = 'join'; } return $this; } // -------------------------------------------------------------------- /** * WHERE * * Generates the WHERE portion of the query. * Separates multiple calls with 'AND'. * * @param mixed * @param mixed * @param bool * @return CI_DB_query_builder */ public function where($key, $value = NULL, $escape = NULL) { return $this->_wh('qb_where', $key, $value, 'AND ', $escape); } // -------------------------------------------------------------------- /** * OR WHERE * * Generates the WHERE portion of the query. * Separates multiple calls with 'OR'. * * @param mixed * @param mixed * @param bool * @return CI_DB_query_builder */ public function or_where($key, $value = NULL, $escape = NULL) { return $this->_wh('qb_where', $key, $value, 'OR ', $escape); } // -------------------------------------------------------------------- /** * WHERE, HAVING * * @used-by where() * @used-by or_where() * @used-by having() * @used-by or_having() * * @param string $qb_key 'qb_where' or 'qb_having' * @param mixed $key * @param mixed $value * @param string $type * @param bool $escape * @return CI_DB_query_builder */ protected function _wh($qb_key, $key, $value = NULL, $type = 'AND ', $escape = NULL) { $qb_cache_key = ($qb_key === 'qb_having') ? 'qb_cache_having' : 'qb_cache_where'; if ( ! is_array($key)) { $key = array($key => $value); } // If the escape value was not set will base it on the global setting is_bool($escape) OR $escape = $this->_protect_identifiers; foreach ($key as $k => $v) { $prefix = (count($this->$qb_key) === 0 && count($this->$qb_cache_key) === 0) ? $this->_group_get_type('') : $this->_group_get_type($type); if ($v !== NULL) { if ($escape === TRUE) { $v = $this->escape($v); } if ( ! $this->_has_operator($k)) { $k .= ' = '; } } elseif ( ! $this->_has_operator($k)) { // value appears not to have been set, assign the test to IS NULL $k .= ' IS NULL'; } elseif (preg_match('/\s*(!?=|<>|\sIS(?:\s+NOT)?\s)\s*$/i', $k, $match, PREG_OFFSET_CAPTURE)) { $k = substr($k, 0, $match[0][1]).($match[1][0] === '=' ? ' IS NULL' : ' IS NOT NULL'); } ${$qb_key} = array('condition' => $prefix.$k, 'value' => $v, 'escape' => $escape); $this->{$qb_key}[] = ${$qb_key}; if ($this->qb_caching === TRUE) { $this->{$qb_cache_key}[] = ${$qb_key}; $this->qb_cache_exists[] = substr($qb_key, 3); } } return $this; } // -------------------------------------------------------------------- /** * WHERE IN * * Generates a WHERE field IN('item', 'item') SQL query, * joined with 'AND' if appropriate. * * @param string $key The field to search * @param array $values The values searched on * @param bool $escape * @return CI_DB_query_builder */ public function where_in($key = NULL, $values = NULL, $escape = NULL) { return $this->_where_in($key, $values, FALSE, 'AND ', $escape); } // -------------------------------------------------------------------- /** * OR WHERE IN * * Generates a WHERE field IN('item', 'item') SQL query, * joined with 'OR' if appropriate. * * @param string $key The field to search * @param array $values The values searched on * @param bool $escape * @return CI_DB_query_builder */ public function or_where_in($key = NULL, $values = NULL, $escape = NULL) { return $this->_where_in($key, $values, FALSE, 'OR ', $escape); } // -------------------------------------------------------------------- /** * WHERE NOT IN * * Generates a WHERE field NOT IN('item', 'item') SQL query, * joined with 'AND' if appropriate. * * @param string $key The field to search * @param array $values The values searched on * @param bool $escape * @return CI_DB_query_builder */ public function where_not_in($key = NULL, $values = NULL, $escape = NULL) { return $this->_where_in($key, $values, TRUE, 'AND ', $escape); } // -------------------------------------------------------------------- /** * OR WHERE NOT IN * * Generates a WHERE field NOT IN('item', 'item') SQL query, * joined with 'OR' if appropriate. * * @param string $key The field to search * @param array $values The values searched on * @param bool $escape * @return CI_DB_query_builder */ public function or_where_not_in($key = NULL, $values = NULL, $escape = NULL) { return $this->_where_in($key, $values, TRUE, 'OR ', $escape); } // -------------------------------------------------------------------- /** * Internal WHERE IN * * @used-by where_in() * @used-by or_where_in() * @used-by where_not_in() * @used-by or_where_not_in() * * @param string $key The field to search * @param array $values The values searched on * @param bool $not If the statement would be IN or NOT IN * @param string $type * @param bool $escape * @return CI_DB_query_builder */ protected function _where_in($key = NULL, $values = NULL, $not = FALSE, $type = 'AND ', $escape = NULL) { if ($key === NULL OR $values === NULL) { return $this; } if ( ! is_array($values)) { $values = array($values); } is_bool($escape) OR $escape = $this->_protect_identifiers; $not = ($not) ? ' NOT' : ''; if ($escape === TRUE) { $where_in = array(); foreach ($values as $value) { $where_in[] = $this->escape($value); } } else { $where_in = array_values($values); } $prefix = (count($this->qb_where) === 0 && count($this->qb_cache_where) === 0) ? $this->_group_get_type('') : $this->_group_get_type($type); $where_in = array( 'condition' => $prefix.$key.$not.' IN('.implode(', ', $where_in).')', 'value' => NULL, 'escape' => $escape ); $this->qb_where[] = $where_in; if ($this->qb_caching === TRUE) { $this->qb_cache_where[] = $where_in; $this->qb_cache_exists[] = 'where'; } return $this; } // -------------------------------------------------------------------- /** * LIKE * * Generates a %LIKE% portion of the query. * Separates multiple calls with 'AND'. * * @param mixed $field * @param string $match * @param string $side * @param bool $escape * @return CI_DB_query_builder */ public function like($field, $match = '', $side = 'both', $escape = NULL) { return $this->_like($field, $match, 'AND ', $side, '', $escape); } // -------------------------------------------------------------------- /** * NOT LIKE * * Generates a NOT LIKE portion of the query. * Separates multiple calls with 'AND'. * * @param mixed $field * @param string $match * @param string $side * @param bool $escape * @return CI_DB_query_builder */ public function not_like($field, $match = '', $side = 'both', $escape = NULL) { return $this->_like($field, $match, 'AND ', $side, 'NOT', $escape); } // -------------------------------------------------------------------- /** * OR LIKE * * Generates a %LIKE% portion of the query. * Separates multiple calls with 'OR'. * * @param mixed $field * @param string $match * @param string $side * @param bool $escape * @return CI_DB_query_builder */ public function or_like($field, $match = '', $side = 'both', $escape = NULL) { return $this->_like($field, $match, 'OR ', $side, '', $escape); } // -------------------------------------------------------------------- /** * OR NOT LIKE * * Generates a NOT LIKE portion of the query. * Separates multiple calls with 'OR'. * * @param mixed $field * @param string $match * @param string $side * @param bool $escape * @return CI_DB_query_builder */ public function or_not_like($field, $match = '', $side = 'both', $escape = NULL) { return $this->_like($field, $match, 'OR ', $side, 'NOT', $escape); } // -------------------------------------------------------------------- /** * Internal LIKE * * @used-by like() * @used-by or_like() * @used-by not_like() * @used-by or_not_like() * * @param mixed $field * @param string $match * @param string $type * @param string $side * @param string $not * @param bool $escape * @return CI_DB_query_builder */ protected function _like($field, $match = '', $type = 'AND ', $side = 'both', $not = '', $escape = NULL) { if ( ! is_array($field)) { $field = array($field => $match); } is_bool($escape) OR $escape = $this->_protect_identifiers; // lowercase $side in case somebody writes e.g. 'BEFORE' instead of 'before' (doh) $side = strtolower($side); foreach ($field as $k => $v) { $prefix = (count($this->qb_where) === 0 && count($this->qb_cache_where) === 0) ? $this->_group_get_type('') : $this->_group_get_type($type); if ($escape === TRUE) { $v = $this->escape_like_str($v); } switch ($side) { case 'none': $v = "'{$v}'"; break; case 'before': $v = "%'{$v}'"; break; case 'after': $v = "'{$v}%'"; break; case 'both': default: $v = "'%{$v}%'"; break; } // some platforms require an escape sequence definition for LIKE wildcards if ($escape === TRUE && $this->_like_escape_str !== '') { $v .= sprintf($this->_like_escape_str, $this->_like_escape_chr); } $qb_where = array('condition' => "{$prefix} {$k} {$not} LIKE", 'value' => $v, 'escape' => $escape); $this->qb_where[] = $qb_where; if ($this->qb_caching === TRUE) { $this->qb_cache_where[] = $qb_where; $this->qb_cache_exists[] = 'where'; } } return $this; } // -------------------------------------------------------------------- /** * Starts a query group. * * @param string $not (Internal use only) * @param string $type (Internal use only) * @return CI_DB_query_builder */ public function group_start($not = '', $type = 'AND ') { $type = $this->_group_get_type($type); $this->qb_where_group_started = TRUE; $prefix = (count($this->qb_where) === 0 && count($this->qb_cache_where) === 0) ? '' : $type; $where = array( 'condition' => $prefix.$not.str_repeat(' ', ++$this->qb_where_group_count).' (', 'value' => NULL, 'escape' => FALSE ); $this->qb_where[] = $where; if ($this->qb_caching) { $this->qb_cache_where[] = $where; } return $this; } // -------------------------------------------------------------------- /** * Starts a query group, but ORs the group * * @return CI_DB_query_builder */ public function or_group_start() { return $this->group_start('', 'OR '); } // -------------------------------------------------------------------- /** * Starts a query group, but NOTs the group * * @return CI_DB_query_builder */ public function not_group_start() { return $this->group_start('NOT ', 'AND '); } // -------------------------------------------------------------------- /** * Starts a query group, but OR NOTs the group * * @return CI_DB_query_builder */ public function or_not_group_start() { return $this->group_start('NOT ', 'OR '); } // -------------------------------------------------------------------- /** * Ends a query group * * @return CI_DB_query_builder */ public function group_end() { $this->qb_where_group_started = FALSE; $where = array( 'condition' => str_repeat(' ', $this->qb_where_group_count--).')', 'value' => NULL, 'escape' => FALSE ); $this->qb_where[] = $where; if ($this->qb_caching) { $this->qb_cache_where[] = $where; } return $this; } // -------------------------------------------------------------------- /** * Group_get_type * * @used-by group_start() * @used-by _like() * @used-by _wh() * @used-by _where_in() * * @param string $type * @return string */ protected function _group_get_type($type) { if ($this->qb_where_group_started) { $type = ''; $this->qb_where_group_started = FALSE; } return $type; } // -------------------------------------------------------------------- /** * GROUP BY * * @param string $by * @param bool $escape * @return CI_DB_query_builder */ public function group_by($by, $escape = NULL) { is_bool($escape) OR $escape = $this->_protect_identifiers; if (is_string($by)) { $by = ($escape === TRUE) ? explode(',', $by) : array($by); } foreach ($by as $val) { $val = trim($val); if ($val !== '') { $val = array('field' => $val, 'escape' => $escape); $this->qb_groupby[] = $val; if ($this->qb_caching === TRUE) { $this->qb_cache_groupby[] = $val; $this->qb_cache_exists[] = 'groupby'; } } } return $this; } // -------------------------------------------------------------------- /** * HAVING * * Separates multiple calls with 'AND'. * * @param string $key * @param string $value * @param bool $escape * @return CI_DB_query_builder */ public function having($key, $value = NULL, $escape = NULL) { return $this->_wh('qb_having', $key, $value, 'AND ', $escape); } // -------------------------------------------------------------------- /** * OR HAVING * * Separates multiple calls with 'OR'. * * @param string $key * @param string $value * @param bool $escape * @return CI_DB_query_builder */ public function or_having($key, $value = NULL, $escape = NULL) { return $this->_wh('qb_having', $key, $value, 'OR ', $escape); } // -------------------------------------------------------------------- /** * ORDER BY * * @param string $orderby * @param string $direction ASC, DESC or RANDOM * @param bool $escape * @return CI_DB_query_builder */ public function order_by($orderby, $direction = '', $escape = NULL) { $direction = strtoupper(trim($direction)); if ($direction === 'RANDOM') { $direction = ''; // Do we have a seed value? $orderby = ctype_digit((string) $orderby) ? sprintf($this->_random_keyword[1], $orderby) : $this->_random_keyword[0]; } elseif (empty($orderby)) { return $this; } elseif ($direction !== '') { $direction = in_array($direction, array('ASC', 'DESC'), TRUE) ? ' '.$direction : ''; } is_bool($escape) OR $escape = $this->_protect_identifiers; if ($escape === FALSE) { $qb_orderby[] = array('field' => $orderby, 'direction' => $direction, 'escape' => FALSE); } else { $qb_orderby = array(); foreach (explode(',', $orderby) as $field) { $qb_orderby[] = ($direction === '' && preg_match('/\s+(ASC|DESC)$/i', rtrim($field), $match, PREG_OFFSET_CAPTURE)) ? array('field' => ltrim(substr($field, 0, $match[0][1])), 'direction' => ' '.$match[1][0], 'escape' => TRUE) : array('field' => trim($field), 'direction' => $direction, 'escape' => TRUE); } } $this->qb_orderby = array_merge($this->qb_orderby, $qb_orderby); if ($this->qb_caching === TRUE) { $this->qb_cache_orderby = array_merge($this->qb_cache_orderby, $qb_orderby); $this->qb_cache_exists[] = 'orderby'; } return $this; } // -------------------------------------------------------------------- /** * LIMIT * * @param int $value LIMIT value * @param int $offset OFFSET value * @return CI_DB_query_builder */ public function limit($value, $offset = 0) { is_null($value) OR $this->qb_limit = (int) $value; empty($offset) OR $this->qb_offset = (int) $offset; return $this; } // -------------------------------------------------------------------- /** * Sets the OFFSET value * * @param int $offset OFFSET value * @return CI_DB_query_builder */ public function offset($offset) { empty($offset) OR $this->qb_offset = (int) $offset; return $this; } // -------------------------------------------------------------------- /** * LIMIT string * * Generates a platform-specific LIMIT clause. * * @param string $sql SQL Query * @return string */ protected function _limit($sql) { return $sql.' LIMIT '.($this->qb_offset ? $this->qb_offset.', ' : '').(int) $this->qb_limit; } // -------------------------------------------------------------------- /** * The "set" function. * * Allows key/value pairs to be set for inserting or updating * * @param mixed * @param string * @param bool * @return CI_DB_query_builder */ public function set($key, $value = '', $escape = NULL) { $key = $this->_object_to_array($key); if ( ! is_array($key)) { $key = array($key => $value); } is_bool($escape) OR $escape = $this->_protect_identifiers; foreach ($key as $k => $v) { $this->qb_set[$this->protect_identifiers($k, FALSE, $escape)] = ($escape) ? $this->escape($v) : $v; } return $this; } // -------------------------------------------------------------------- /** * Get SELECT query string * * Compiles a SELECT query string and returns the sql. * * @param string the table name to select from (optional) * @param bool TRUE: resets QB values; FALSE: leave QB values alone * @return string */ public function get_compiled_select($table = '', $reset = TRUE) { if ($table !== '') { $this->_track_aliases($table); $this->from($table); } $select = $this->_compile_select(); if ($reset === TRUE) { $this->_reset_select(); } return $select; } // -------------------------------------------------------------------- /** * Get * * Compiles the select statement based on the other functions called * and runs the query * * @param string the table * @param string the limit clause * @param string the offset clause * @return CI_DB_result */ public function get($table = '', $limit = NULL, $offset = NULL) { if ($table !== '') { $this->_track_aliases($table); $this->from($table); } if ( ! empty($limit)) { $this->limit($limit, $offset); } $result = $this->query($this->_compile_select()); $this->_reset_select(); return $result; } // -------------------------------------------------------------------- /** * "Count All Results" query * * Generates a platform-specific query string that counts all records * returned by an Query Builder query. * * @param string * @param bool the reset clause * @return int */ public function count_all_results($table = '', $reset = TRUE) { if ($table !== '') { $this->_track_aliases($table); $this->from($table); } // ORDER BY usage is often problematic here (most notably // on Microsoft SQL Server) and ultimately unnecessary // for selecting COUNT(*) ... $qb_orderby = $this->qb_orderby; $qb_cache_orderby = $this->qb_cache_orderby; $this->qb_orderby = $this->qb_cache_orderby = array(); $result = ($this->qb_distinct === TRUE OR ! empty($this->qb_groupby) OR ! empty($this->qb_cache_groupby) OR $this->qb_limit OR $this->qb_offset) ? $this->query($this->_count_string.$this->protect_identifiers('numrows')."\nFROM (\n".$this->_compile_select()."\n) CI_count_all_results") : $this->query($this->_compile_select($this->_count_string.$this->protect_identifiers('numrows'))); if ($reset === TRUE) { $this->_reset_select(); } else { $this->qb_orderby = $qb_orderby; $this->qb_cache_orderby = $qb_cache_orderby; } if ($result->num_rows() === 0) { return 0; } $row = $result->row(); return (int) $row->numrows; } // -------------------------------------------------------------------- /** * get_where() * * Allows the where clause, limit and offset to be added directly * * @param string $table * @param string $where * @param int $limit * @param int $offset * @return CI_DB_result */ public function get_where($table = '', $where = NULL, $limit = NULL, $offset = NULL) { if ($table !== '') { $this->from($table); } if ($where !== NULL) { $this->where($where); } if ( ! empty($limit)) { $this->limit($limit, $offset); } $result = $this->query($this->_compile_select()); $this->_reset_select(); return $result; } // -------------------------------------------------------------------- /** * Insert_Batch * * Compiles batch insert strings and runs the queries * * @param string $table Table to insert into * @param array $set An associative array of insert values * @param bool $escape Whether to escape values and identifiers * @return int Number of rows inserted or FALSE on failure */ public function insert_batch($table, $set = NULL, $escape = NULL, $batch_size = 100) { if ($set === NULL) { if (empty($this->qb_set)) { return ($this->db_debug) ? $this->display_error('db_must_use_set') : FALSE; } } else { if (empty($set)) { return ($this->db_debug) ? $this->display_error('insert_batch() called with no data') : FALSE; } $this->set_insert_batch($set, '', $escape); } if (strlen($table) === 0) { if ( ! isset($this->qb_from[0])) { return ($this->db_debug) ? $this->display_error('db_must_set_table') : FALSE; } $table = $this->qb_from[0]; } // Batch this baby $affected_rows = 0; for ($i = 0, $total = count($this->qb_set); $i < $total; $i += $batch_size) { if ($this->query($this->_insert_batch($this->protect_identifiers($table, TRUE, $escape, FALSE), $this->qb_keys, array_slice($this->qb_set, $i, $batch_size)))) { $affected_rows += $this->affected_rows(); } } $this->_reset_write(); return $affected_rows; } // -------------------------------------------------------------------- /** * Insert batch statement * * Generates a platform-specific insert string from the supplied data. * * @param string $table Table name * @param array $keys INSERT keys * @param array $values INSERT values * @return string */ protected function _insert_batch($table, $keys, $values) { return 'INSERT INTO '.$table.' ('.implode(', ', $keys).') VALUES '.implode(', ', $values); } // -------------------------------------------------------------------- /** * The "set_insert_batch" function. Allows key/value pairs to be set for batch inserts * * @param mixed * @param string * @param bool * @return CI_DB_query_builder */ public function set_insert_batch($key, $value = '', $escape = NULL) { $key = $this->_object_to_array_batch($key); if ( ! is_array($key)) { $key = array($key => $value); } is_bool($escape) OR $escape = $this->_protect_identifiers; $keys = array_keys($this->_object_to_array(reset($key))); sort($keys); foreach ($key as $row) { $row = $this->_object_to_array($row); if (count(array_diff($keys, array_keys($row))) > 0 OR count(array_diff(array_keys($row), $keys)) > 0) { // batch function above returns an error on an empty array $this->qb_set[] = array(); return; } ksort($row); // puts $row in the same order as our keys if ($escape !== FALSE) { $clean = array(); foreach ($row as $value) { $clean[] = $this->escape($value); } $row = $clean; } $this->qb_set[] = '('.implode(',', $row).')'; } foreach ($keys as $k) { $this->qb_keys[] = $this->protect_identifiers($k, FALSE, $escape); } return $this; } // -------------------------------------------------------------------- /** * Get INSERT query string * * Compiles an insert query and returns the sql * * @param string the table to insert into * @param bool TRUE: reset QB values; FALSE: leave QB values alone * @return string */ public function get_compiled_insert($table = '', $reset = TRUE) { if ($this->_validate_insert($table) === FALSE) { return FALSE; } $sql = $this->_insert( $this->protect_identifiers( $this->qb_from[0], TRUE, NULL, FALSE ), array_keys($this->qb_set), array_values($this->qb_set) ); if ($reset === TRUE) { $this->_reset_write(); } return $sql; } // -------------------------------------------------------------------- /** * Insert * * Compiles an insert string and runs the query * * @param string the table to insert data into * @param array an associative array of insert values * @param bool $escape Whether to escape values and identifiers * @return bool TRUE on success, FALSE on failure */ public function insert($table = '', $set = NULL, $escape = NULL) { if ($set !== NULL) { $this->set($set, '', $escape); } if ($this->_validate_insert($table) === FALSE) { return FALSE; } $sql = $this->_insert( $this->protect_identifiers( $this->qb_from[0], TRUE, $escape, FALSE ), array_keys($this->qb_set), array_values($this->qb_set) ); $this->_reset_write(); return $this->query($sql); } // -------------------------------------------------------------------- /** * Validate Insert * * This method is used by both insert() and get_compiled_insert() to * validate that the there data is actually being set and that table * has been chosen to be inserted into. * * @param string the table to insert data into * @return string */ protected function _validate_insert($table = '') { if (count($this->qb_set) === 0) { return ($this->db_debug) ? $this->display_error('db_must_use_set') : FALSE; } if ($table !== '') { $this->qb_from[0] = $table; } elseif ( ! isset($this->qb_from[0])) { return ($this->db_debug) ? $this->display_error('db_must_set_table') : FALSE; } return TRUE; } // -------------------------------------------------------------------- /** * Replace * * Compiles an replace into string and runs the query * * @param string the table to replace data into * @param array an associative array of insert values * @return bool TRUE on success, FALSE on failure */ public function replace($table = '', $set = NULL) { if ($set !== NULL) { $this->set($set); } if (count($this->qb_set) === 0) { return ($this->db_debug) ? $this->display_error('db_must_use_set') : FALSE; } if ($table === '') { if ( ! isset($this->qb_from[0])) { return ($this->db_debug) ? $this->display_error('db_must_set_table') : FALSE; } $table = $this->qb_from[0]; } $sql = $this->_replace($this->protect_identifiers($table, TRUE, NULL, FALSE), array_keys($this->qb_set), array_values($this->qb_set)); $this->_reset_write(); return $this->query($sql); } // -------------------------------------------------------------------- /** * Replace statement * * Generates a platform-specific replace string from the supplied data * * @param string the table name * @param array the insert keys * @param array the insert values * @return string */ protected function _replace($table, $keys, $values) { return 'REPLACE INTO '.$table.' ('.implode(', ', $keys).') VALUES ('.implode(', ', $values).')'; } // -------------------------------------------------------------------- /** * FROM tables * * Groups tables in FROM clauses if needed, so there is no confusion * about operator precedence. * * Note: This is only used (and overridden) by MySQL and CUBRID. * * @return string */ protected function _from_tables() { return implode(', ', $this->qb_from); } // -------------------------------------------------------------------- /** * Get UPDATE query string * * Compiles an update query and returns the sql * * @param string the table to update * @param bool TRUE: reset QB values; FALSE: leave QB values alone * @return string */ public function get_compiled_update($table = '', $reset = TRUE) { // Combine any cached components with the current statements $this->_merge_cache(); if ($this->_validate_update($table) === FALSE) { return FALSE; } $sql = $this->_update($this->qb_from[0], $this->qb_set); if ($reset === TRUE) { $this->_reset_write(); } return $sql; } // -------------------------------------------------------------------- /** * UPDATE * * Compiles an update string and runs the query. * * @param string $table * @param array $set An associative array of update values * @param mixed $where * @param int $limit * @return bool TRUE on success, FALSE on failure */ public function update($table = '', $set = NULL, $where = NULL, $limit = NULL) { // Combine any cached components with the current statements $this->_merge_cache(); if ($set !== NULL) { $this->set($set); } if ($this->_validate_update($table) === FALSE) { return FALSE; } if ($where !== NULL) { $this->where($where); } if ( ! empty($limit)) { $this->limit($limit); } $sql = $this->_update($this->qb_from[0], $this->qb_set); $this->_reset_write(); return $this->query($sql); } // -------------------------------------------------------------------- /** * Validate Update * * This method is used by both update() and get_compiled_update() to * validate that data is actually being set and that a table has been * chosen to be update. * * @param string the table to update data on * @return bool */ protected function _validate_update($table) { if (count($this->qb_set) === 0) { return ($this->db_debug) ? $this->display_error('db_must_use_set') : FALSE; } if ($table !== '') { $this->qb_from = array($this->protect_identifiers($table, TRUE, NULL, FALSE)); } elseif ( ! isset($this->qb_from[0])) { return ($this->db_debug) ? $this->display_error('db_must_set_table') : FALSE; } return TRUE; } // -------------------------------------------------------------------- /** * Update_Batch * * Compiles an update string and runs the query * * @param string the table to retrieve the results from * @param array an associative array of update values * @param string the where key * @return int number of rows affected or FALSE on failure */ public function update_batch($table, $set = NULL, $index = NULL, $batch_size = 100) { // Combine any cached components with the current statements $this->_merge_cache(); if ($index === NULL) { return ($this->db_debug) ? $this->display_error('db_must_use_index') : FALSE; } if ($set === NULL) { if (empty($this->qb_set_ub)) { return ($this->db_debug) ? $this->display_error('db_must_use_set') : FALSE; } } else { if (empty($set)) { return ($this->db_debug) ? $this->display_error('update_batch() called with no data') : FALSE; } $this->set_update_batch($set, $index); } if (strlen($table) === 0) { if ( ! isset($this->qb_from[0])) { return ($this->db_debug) ? $this->display_error('db_must_set_table') : FALSE; } $table = $this->qb_from[0]; } // Batch this baby $affected_rows = 0; for ($i = 0, $total = count($this->qb_set_ub); $i < $total; $i += $batch_size) { if ($this->query($this->_update_batch($this->protect_identifiers($table, TRUE, NULL, FALSE), array_slice($this->qb_set_ub, $i, $batch_size), $index))) { $affected_rows += $this->affected_rows(); } $this->qb_where = array(); } $this->_reset_write(); return $affected_rows; } // -------------------------------------------------------------------- /** * Update_Batch statement * * Generates a platform-specific batch update string from the supplied data * * @param string $table Table name * @param array $values Update data * @param string $index WHERE key * @return string */ protected function _update_batch($table, $values, $index) { $ids = array(); foreach ($values as $key => $val) { $ids[] = $val[$index]['value']; foreach (array_keys($val) as $field) { if ($field !== $index) { $final[$val[$field]['field']][] = 'WHEN '.$val[$index]['field'].' = '.$val[$index]['value'].' THEN '.$val[$field]['value']; } } } $cases = ''; foreach ($final as $k => $v) { $cases .= $k." = CASE \n" .implode("\n", $v)."\n" .'ELSE '.$k.' END, '; } $this->where($val[$index]['field'].' IN('.implode(',', $ids).')', NULL, FALSE); return 'UPDATE '.$table.' SET '.substr($cases, 0, -2).$this->_compile_wh('qb_where'); } // -------------------------------------------------------------------- /** * The "set_update_batch" function. Allows key/value pairs to be set for batch updating * * @param array * @param string * @param bool * @return CI_DB_query_builder */ public function set_update_batch($key, $index = '', $escape = NULL) { $key = $this->_object_to_array_batch($key); if ( ! is_array($key)) { // @todo error } is_bool($escape) OR $escape = $this->_protect_identifiers; foreach ($key as $k => $v) { $index_set = FALSE; $clean = array(); foreach ($v as $k2 => $v2) { if ($k2 === $index) { $index_set = TRUE; } $clean[$k2] = array( 'field' => $this->protect_identifiers($k2, FALSE, $escape), 'value' => ($escape === FALSE ? $v2 : $this->escape($v2)) ); } if ($index_set === FALSE) { return $this->display_error('db_batch_missing_index'); } $this->qb_set_ub[] = $clean; } return $this; } // -------------------------------------------------------------------- /** * Empty Table * * Compiles a delete string and runs "DELETE FROM table" * * @param string the table to empty * @return bool TRUE on success, FALSE on failure */ public function empty_table($table = '') { if ($table === '') { if ( ! isset($this->qb_from[0])) { return ($this->db_debug) ? $this->display_error('db_must_set_table') : FALSE; } $table = $this->qb_from[0]; } else { $table = $this->protect_identifiers($table, TRUE, NULL, FALSE); } $sql = $this->_delete($table); $this->_reset_write(); return $this->query($sql); } // -------------------------------------------------------------------- /** * Truncate * * Compiles a truncate string and runs the query * If the database does not support the truncate() command * This function maps to "DELETE FROM table" * * @param string the table to truncate * @return bool TRUE on success, FALSE on failure */ public function truncate($table = '') { if ($table === '') { if ( ! isset($this->qb_from[0])) { return ($this->db_debug) ? $this->display_error('db_must_set_table') : FALSE; } $table = $this->qb_from[0]; } else { $table = $this->protect_identifiers($table, TRUE, NULL, FALSE); } $sql = $this->_truncate($table); $this->_reset_write(); return $this->query($sql); } // -------------------------------------------------------------------- /** * Truncate statement * * Generates a platform-specific truncate string from the supplied data * * If the database does not support the truncate() command, * then this method maps to 'DELETE FROM table' * * @param string the table name * @return string */ protected function _truncate($table) { return 'TRUNCATE '.$table; } // -------------------------------------------------------------------- /** * Get DELETE query string * * Compiles a delete query string and returns the sql * * @param string the table to delete from * @param bool TRUE: reset QB values; FALSE: leave QB values alone * @return string */ public function get_compiled_delete($table = '', $reset = TRUE) { $this->return_delete_sql = TRUE; $sql = $this->delete($table, '', NULL, $reset); $this->return_delete_sql = FALSE; return $sql; } // -------------------------------------------------------------------- /** * Delete * * Compiles a delete string and runs the query * * @param mixed the table(s) to delete from. String or array * @param mixed the where clause * @param mixed the limit clause * @param bool * @return mixed */ public function delete($table = '', $where = '', $limit = NULL, $reset_data = TRUE) { // Combine any cached components with the current statements $this->_merge_cache(); if ($table === '') { if ( ! isset($this->qb_from[0])) { return ($this->db_debug) ? $this->display_error('db_must_set_table') : FALSE; } $table = $this->qb_from[0]; } elseif (is_array($table)) { empty($where) && $reset_data = FALSE; foreach ($table as $single_table) { $this->delete($single_table, $where, $limit, $reset_data); } return; } else { $table = $this->protect_identifiers($table, TRUE, NULL, FALSE); } if ($where !== '') { $this->where($where); } if ( ! empty($limit)) { $this->limit($limit); } if (count($this->qb_where) === 0) { return ($this->db_debug) ? $this->display_error('db_del_must_use_where') : FALSE; } $sql = $this->_delete($table); if ($reset_data) { $this->_reset_write(); } return ($this->return_delete_sql === TRUE) ? $sql : $this->query($sql); } // -------------------------------------------------------------------- /** * Delete statement * * Generates a platform-specific delete string from the supplied data * * @param string the table name * @return string */ protected function _delete($table) { return 'DELETE FROM '.$table.$this->_compile_wh('qb_where') .($this->qb_limit ? ' LIMIT '.$this->qb_limit : ''); } // -------------------------------------------------------------------- /** * DB Prefix * * Prepends a database prefix if one exists in configuration * * @param string the table * @return string */ public function dbprefix($table = '') { if ($table === '') { $this->display_error('db_table_name_required'); } return $this->dbprefix.$table; } // -------------------------------------------------------------------- /** * Set DB Prefix * * Set's the DB Prefix to something new without needing to reconnect * * @param string the prefix * @return string */ public function set_dbprefix($prefix = '') { return $this->dbprefix = $prefix; } // -------------------------------------------------------------------- /** * Track Aliases * * Used to track SQL statements written with aliased tables. * * @param string The table to inspect * @return string */ protected function _track_aliases($table) { if (is_array($table)) { foreach ($table as $t) { $this->_track_aliases($t); } return; } // Does the string contain a comma? If so, we need to separate // the string into discreet statements if (strpos($table, ',') !== FALSE) { return $this->_track_aliases(explode(',', $table)); } // if a table alias is used we can recognize it by a space if (strpos($table, ' ') !== FALSE) { // if the alias is written with the AS keyword, remove it $table = preg_replace('/\s+AS\s+/i', ' ', $table); // Grab the alias $table = trim(strrchr($table, ' ')); // Store the alias, if it doesn't already exist if ( ! in_array($table, $this->qb_aliased_tables, TRUE)) { $this->qb_aliased_tables[] = $table; if ($this->qb_caching === TRUE && ! in_array($table, $this->qb_cache_aliased_tables, TRUE)) { $this->qb_cache_aliased_tables[] = $table; $this->qb_cache_exists[] = 'aliased_tables'; } } } } // -------------------------------------------------------------------- /** * Compile the SELECT statement * * Generates a query string based on which functions were used. * Should not be called directly. * * @param bool $select_override * @return string */ protected function _compile_select($select_override = FALSE) { // Combine any cached components with the current statements $this->_merge_cache(); // Write the "select" portion of the query if ($select_override !== FALSE) { $sql = $select_override; } else { $sql = ( ! $this->qb_distinct) ? 'SELECT ' : 'SELECT DISTINCT '; if (count($this->qb_select) === 0) { $sql .= '*'; } else { // Cycle through the "select" portion of the query and prep each column name. // The reason we protect identifiers here rather than in the select() function // is because until the user calls the from() function we don't know if there are aliases foreach ($this->qb_select as $key => $val) { $no_escape = isset($this->qb_no_escape[$key]) ? $this->qb_no_escape[$key] : NULL; $this->qb_select[$key] = $this->protect_identifiers($val, FALSE, $no_escape); } $sql .= implode(', ', $this->qb_select); } } // Write the "FROM" portion of the query if (count($this->qb_from) > 0) { $sql .= "\nFROM ".$this->_from_tables(); } // Write the "JOIN" portion of the query if (count($this->qb_join) > 0) { $sql .= "\n".implode("\n", $this->qb_join); } $sql .= $this->_compile_wh('qb_where') .$this->_compile_group_by() .$this->_compile_wh('qb_having') .$this->_compile_order_by(); // ORDER BY // LIMIT if ($this->qb_limit OR $this->qb_offset) { return $this->_limit($sql."\n"); } return $sql; } // -------------------------------------------------------------------- /** * Compile WHERE, HAVING statements * * Escapes identifiers in WHERE and HAVING statements at execution time. * * Required so that aliases are tracked properly, regardless of whether * where(), or_where(), having(), or_having are called prior to from(), * join() and dbprefix is added only if needed. * * @param string $qb_key 'qb_where' or 'qb_having' * @return string SQL statement */ protected function _compile_wh($qb_key) { if (count($this->$qb_key) > 0) { for ($i = 0, $c = count($this->$qb_key); $i < $c; $i++) { // Is this condition already compiled? if (is_string($this->{$qb_key}[$i])) { continue; } elseif ($this->{$qb_key}[$i]['escape'] === FALSE) { $this->{$qb_key}[$i] = $this->{$qb_key}[$i]['condition'].(isset($this->{$qb_key}[$i]['value']) ? ' '.$this->{$qb_key}[$i]['value'] : ''); continue; } // Split multiple conditions $conditions = preg_split( '/((?:^|\s+)AND\s+|(?:^|\s+)OR\s+)/i', $this->{$qb_key}[$i]['condition'], -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY ); for ($ci = 0, $cc = count($conditions); $ci < $cc; $ci++) { if (($op = $this->_get_operator($conditions[$ci])) === FALSE OR ! preg_match('/^(\(?)(.*)('.preg_quote($op, '/').')\s*(.*(? '(test <= foo)', /* the whole thing */ // 1 => '(', /* optional */ // 2 => 'test', /* the field name */ // 3 => ' <= ', /* $op */ // 4 => 'foo', /* optional, if $op is e.g. 'IS NULL' */ // 5 => ')' /* optional */ // ); if ( ! empty($matches[4])) { $this->_is_literal($matches[4]) OR $matches[4] = $this->protect_identifiers(trim($matches[4])); $matches[4] = ' '.$matches[4]; } $conditions[$ci] = $matches[1].$this->protect_identifiers(trim($matches[2])) .' '.trim($matches[3]).$matches[4].$matches[5]; } $this->{$qb_key}[$i] = implode('', $conditions).(isset($this->{$qb_key}[$i]['value']) ? ' '.$this->{$qb_key}[$i]['value'] : ''); } return ($qb_key === 'qb_having' ? "\nHAVING " : "\nWHERE ") .implode("\n", $this->$qb_key); } return ''; } // -------------------------------------------------------------------- /** * Compile GROUP BY * * Escapes identifiers in GROUP BY statements at execution time. * * Required so that aliases are tracked properly, regardless of whether * group_by() is called prior to from(), join() and dbprefix is added * only if needed. * * @return string SQL statement */ protected function _compile_group_by() { if (count($this->qb_groupby) > 0) { for ($i = 0, $c = count($this->qb_groupby); $i < $c; $i++) { // Is it already compiled? if (is_string($this->qb_groupby[$i])) { continue; } $this->qb_groupby[$i] = ($this->qb_groupby[$i]['escape'] === FALSE OR $this->_is_literal($this->qb_groupby[$i]['field'])) ? $this->qb_groupby[$i]['field'] : $this->protect_identifiers($this->qb_groupby[$i]['field']); } return "\nGROUP BY ".implode(', ', $this->qb_groupby); } return ''; } // -------------------------------------------------------------------- /** * Compile ORDER BY * * Escapes identifiers in ORDER BY statements at execution time. * * Required so that aliases are tracked properly, regardless of whether * order_by() is called prior to from(), join() and dbprefix is added * only if needed. * * @return string SQL statement */ protected function _compile_order_by() { if (empty($this->qb_orderby)) { return ''; } for ($i = 0, $c = count($this->qb_orderby); $i < $c; $i++) { if (is_string($this->qb_orderby[$i])) { continue; } if ($this->qb_orderby[$i]['escape'] !== FALSE && ! $this->_is_literal($this->qb_orderby[$i]['field'])) { $this->qb_orderby[$i]['field'] = $this->protect_identifiers($this->qb_orderby[$i]['field']); } $this->qb_orderby[$i] = $this->qb_orderby[$i]['field'].$this->qb_orderby[$i]['direction']; } return "\nORDER BY ".implode(', ', $this->qb_orderby); } // -------------------------------------------------------------------- /** * Object to Array * * Takes an object as input and converts the class variables to array key/vals * * @param object * @return array */ protected function _object_to_array($object) { if ( ! is_object($object)) { return $object; } $array = array(); foreach (get_object_vars($object) as $key => $val) { // There are some built in keys we need to ignore for this conversion if ( ! is_object($val) && ! is_array($val) && $key !== '_parent_name') { $array[$key] = $val; } } return $array; } // -------------------------------------------------------------------- /** * Object to Array * * Takes an object as input and converts the class variables to array key/vals * * @param object * @return array */ protected function _object_to_array_batch($object) { if ( ! is_object($object)) { return $object; } $array = array(); $out = get_object_vars($object); $fields = array_keys($out); foreach ($fields as $val) { // There are some built in keys we need to ignore for this conversion if ($val !== '_parent_name') { $i = 0; foreach ($out[$val] as $data) { $array[$i++][$val] = $data; } } } return $array; } // -------------------------------------------------------------------- /** * Start Cache * * Starts QB caching * * @return CI_DB_query_builder */ public function start_cache() { $this->qb_caching = TRUE; return $this; } // -------------------------------------------------------------------- /** * Stop Cache * * Stops QB caching * * @return CI_DB_query_builder */ public function stop_cache() { $this->qb_caching = FALSE; return $this; } // -------------------------------------------------------------------- /** * Flush Cache * * Empties the QB cache * * @return CI_DB_query_builder */ public function flush_cache() { $this->_reset_run(array( 'qb_cache_select' => array(), 'qb_cache_from' => array(), 'qb_cache_join' => array(), 'qb_cache_where' => array(), 'qb_cache_groupby' => array(), 'qb_cache_having' => array(), 'qb_cache_orderby' => array(), 'qb_cache_set' => array(), 'qb_cache_exists' => array(), 'qb_cache_no_escape' => array(), 'qb_cache_aliased_tables' => array() )); return $this; } // -------------------------------------------------------------------- /** * Merge Cache * * When called, this function merges any cached QB arrays with * locally called ones. * * @return void */ protected function _merge_cache() { if (count($this->qb_cache_exists) === 0) { return; } elseif (in_array('select', $this->qb_cache_exists, TRUE)) { $qb_no_escape = $this->qb_cache_no_escape; } foreach (array_unique($this->qb_cache_exists) as $val) // select, from, etc. { $qb_variable = 'qb_'.$val; $qb_cache_var = 'qb_cache_'.$val; $qb_new = $this->$qb_cache_var; for ($i = 0, $c = count($this->$qb_variable); $i < $c; $i++) { if ( ! in_array($this->{$qb_variable}[$i], $qb_new, TRUE)) { $qb_new[] = $this->{$qb_variable}[$i]; if ($val === 'select') { $qb_no_escape[] = $this->qb_no_escape[$i]; } } } $this->$qb_variable = $qb_new; if ($val === 'select') { $this->qb_no_escape = $qb_no_escape; } } } // -------------------------------------------------------------------- /** * Is literal * * Determines if a string represents a literal value or a field name * * @param string $str * @return bool */ protected function _is_literal($str) { $str = trim($str); if (empty($str) OR ctype_digit($str) OR (string) (float) $str === $str OR in_array(strtoupper($str), array('TRUE', 'FALSE'), TRUE)) { return TRUE; } static $_str; if (empty($_str)) { $_str = ($this->_escape_char !== '"') ? array('"', "'") : array("'"); } return in_array($str[0], $_str, TRUE); } // -------------------------------------------------------------------- /** * Reset Query Builder values. * * Publicly-visible method to reset the QB values. * * @return CI_DB_query_builder */ public function reset_query() { $this->_reset_select(); $this->_reset_write(); return $this; } // -------------------------------------------------------------------- /** * Resets the query builder values. Called by the get() function * * @param array An array of fields to reset * @return void */ protected function _reset_run($qb_reset_items) { foreach ($qb_reset_items as $item => $default_value) { $this->$item = $default_value; } } // -------------------------------------------------------------------- /** * Resets the query builder values. Called by the get() function * * @return void */ protected function _reset_select() { $this->_reset_run(array( 'qb_select' => array(), 'qb_from' => array(), 'qb_join' => array(), 'qb_where' => array(), 'qb_groupby' => array(), 'qb_having' => array(), 'qb_orderby' => array(), 'qb_aliased_tables' => array(), 'qb_no_escape' => array(), 'qb_distinct' => FALSE, 'qb_limit' => FALSE, 'qb_offset' => FALSE )); } // -------------------------------------------------------------------- /** * Resets the query builder "write" values. * * Called by the insert() update() insert_batch() update_batch() and delete() functions * * @return void */ protected function _reset_write() { $this->_reset_run(array( 'qb_set' => array(), 'qb_set_ub' => array(), 'qb_from' => array(), 'qb_join' => array(), 'qb_where' => array(), 'qb_orderby' => array(), 'qb_keys' => array(), 'qb_limit' => FALSE )); } }