From 5ca0513e1af6c2498f6f28b769c30d762495389f Mon Sep 17 00:00:00 2001 From: Andrey Andreev Date: Thu, 5 Jul 2012 12:06:34 +0300 Subject: Change DB_result::num_rows default value to NULL --- system/database/DB_result.php | 60 ++++++++++++++++++++++++++++++++----------- 1 file changed, 45 insertions(+), 15 deletions(-) (limited to 'system/database/DB_result.php') diff --git a/system/database/DB_result.php b/system/database/DB_result.php index 991f6ba94..30e85cb99 100644 --- a/system/database/DB_result.php +++ b/system/database/DB_result.php @@ -38,32 +38,63 @@ */ class CI_DB_result { - public $conn_id = NULL; - public $result_id = NULL; + public $conn_id; + public $result_id; public $result_array = array(); public $result_object = array(); public $custom_result_object = array(); public $current_row = 0; - public $num_rows = 0; - public $row_data = NULL; + public $num_rows; + public $row_data; + /** + * Constructor + * + * @param object + * @return void + */ public function __construct(&$driver_object) { $this->conn_id = $driver_object->conn_id; $this->result_id = $driver_object->result_id; } + // -------------------------------------------------------------------- + /** - * Query result. Acts as a wrapper function for the following functions. + * Number of rows in the result set * - * @param string can be "object" or "array" - * @return object + * @return int + */ + public function num_rows() + { + return is_int($this->num_rows) + ? $this->num_rows + : $this->num_rows = 0; + } + + // -------------------------------------------------------------------- + + /** + * Query result. Acts as a wrapper function for the following functions. + * + * @param string 'object', 'array' or a custom class name + * @return array */ public function result($type = 'object') { - if ($type === 'array') return $this->result_array(); - elseif ($type === 'object') return $this->result_object(); - else return $this->custom_result_object($type); + if ($type === 'array') + { + return $this->result_array(); + } + elseif ($type === 'object') + { + return $this->result_object(); + } + else + { + return $this->custom_result_object($type); + } } // -------------------------------------------------------------------- @@ -81,7 +112,7 @@ class CI_DB_result { return $this->custom_result_object[$class_name]; } - if ($this->result_id === FALSE OR $this->num_rows() === 0) + if ($this->result_id === FALSE OR $this->num_rows === 0) { return array(); } @@ -122,7 +153,7 @@ class CI_DB_result { // In the event that query caching is on the result_id variable // will return FALSE since there isn't a valid SQL resource so // we'll simply return an empty array. - if ($this->result_id === FALSE OR $this->num_rows() === 0) + if ($this->result_id === FALSE OR $this->num_rows === 0) { return array(); } @@ -139,7 +170,7 @@ class CI_DB_result { // -------------------------------------------------------------------- /** - * Query result. "array" version. + * Query result. "array" version. * * @return array */ @@ -153,7 +184,7 @@ class CI_DB_result { // In the event that query caching is on the result_id variable // will return FALSE since there isn't a valid SQL resource so // we'll simply return an empty array. - if ($this->result_id === FALSE OR $this->num_rows() === 0) + if ($this->result_id === FALSE OR $this->num_rows === 0) { return array(); } @@ -393,7 +424,6 @@ class CI_DB_result { * operational due to the unavailability of the database resource IDs with * cached results. */ - public function num_rows() { return $this->num_rows; } public function num_fields() { return 0; } public function list_fields() { return array(); } public function field_data() { return array(); } -- cgit v1.2.3-24-g4f1b From 4763c13c99eab2a720a4d6d913902e5cef4e76ec Mon Sep 17 00:00:00 2001 From: Andrey Andreev Date: Thu, 5 Jul 2012 13:58:18 +0300 Subject: Don't fetch DB result sets twice --- system/database/DB_result.php | 75 ++++++++++++++++++++++++++++++++++--------- 1 file changed, 59 insertions(+), 16 deletions(-) (limited to 'system/database/DB_result.php') diff --git a/system/database/DB_result.php b/system/database/DB_result.php index 30e85cb99..53a23a8be 100644 --- a/system/database/DB_result.php +++ b/system/database/DB_result.php @@ -107,19 +107,43 @@ class CI_DB_result { */ public function custom_result_object($class_name) { - if (array_key_exists($class_name, $this->custom_result_object)) + if (isset($this->custom_result_object[$class_name])) { return $this->custom_result_object[$class_name]; } - - if ($this->result_id === FALSE OR $this->num_rows === 0) + elseif ( ! $this->result_id OR $this->num_rows === 0) { return array(); } - // add the data to the object + // Don't fetch the result set again if we already have it + $_data = NULL; + if (($c = count($this->result_array)) > 0) + { + $_data = 'result_array'; + } + elseif (($c = count($this->result_object)) > 0) + { + $_data = 'result_object'; + } + + if ($_data !== NULL) + { + for ($i = 0; $i < $c; $i++) + { + $this->custom_result_object[$class_name][$i] = new $class_name(); + + foreach ($this->$_data as $key => $value) + { + $this->custom_result_object[$class_name][$i]->$key = $value; + } + } + + return $this->custom_result_object[$class_name]; + } + $this->_data_seek(0); - $result_object = array(); + $this->custom_result_object[$class_name] = array(); while ($row = $this->_fetch_object()) { @@ -129,11 +153,10 @@ class CI_DB_result { $object->$key = $value; } - $result_object[] = $object; + $custom_result_object[$class_name][] = $object; } - // return the array - return $this->custom_result_object[$class_name] = $result_object; + return $this->custom_result_object[$class_name]; } // -------------------------------------------------------------------- @@ -150,14 +173,24 @@ class CI_DB_result { return $this->result_object; } - // In the event that query caching is on the result_id variable - // will return FALSE since there isn't a valid SQL resource so - // we'll simply return an empty array. - if ($this->result_id === FALSE OR $this->num_rows === 0) + // In the event that query caching is on, the result_id variable + // will not be a valid resource so we'll simply return an empty + // array. + if ( ! $this->result_id OR $this->num_rows === 0) { return array(); } + if (($c = count($this->result_array)) > 0) + { + for ($i = 0; $i < $c; $i++) + { + $this->result_object[$i] = (object) $this->result_array[$i]; + } + + return $this->result_object; + } + $this->_data_seek(0); while ($row = $this->_fetch_object()) { @@ -181,14 +214,24 @@ class CI_DB_result { return $this->result_array; } - // In the event that query caching is on the result_id variable - // will return FALSE since there isn't a valid SQL resource so - // we'll simply return an empty array. - if ($this->result_id === FALSE OR $this->num_rows === 0) + // In the event that query caching is on, the result_id variable + // will not be a valid resource so we'll simply return an empty + // array. + if ( ! $this->result_id OR $this->num_rows === 0) { return array(); } + if (($c = count($this->result_object)) > 0) + { + for ($i = 0; $i < $c; $i++) + { + $this->result_array[$i] = (array) $this->result_object[$i]; + } + + return $this->result_array; + } + $this->_data_seek(0); while ($row = $this->_fetch_assoc()) { -- cgit v1.2.3-24-g4f1b From 34d67990c2987d662919f06bdf18d5cc522c2560 Mon Sep 17 00:00:00 2001 From: Andrey Andreev Date: Thu, 5 Jul 2012 14:37:36 +0300 Subject: Optimize custom_result_object() --- system/database/DB_result.php | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'system/database/DB_result.php') diff --git a/system/database/DB_result.php b/system/database/DB_result.php index 53a23a8be..fb3cff340 100644 --- a/system/database/DB_result.php +++ b/system/database/DB_result.php @@ -313,18 +313,19 @@ class CI_DB_result { */ public function custom_row_object($n, $type) { - $result = $this->custom_result_object($type); - if (count($result) === 0) + isset($this->custom_result_object[$type]) OR $this->custom_result_object($type); + + if (count($this->custom_result_object[$type]) === 0) { return NULL; } - if ($n !== $this->current_row && isset($result[$n])) + if ($n !== $this->current_row && isset($this->custom_result_object[$type][$n])) { $this->current_row = $n; } - return $result[$this->current_row]; + return $this->custom_result_object[$type][$this->current_row]; } // -------------------------------------------------------------------- -- cgit v1.2.3-24-g4f1b From c7db6bb9b64c8322af4d727bcb71122cd7f09dbf Mon Sep 17 00:00:00 2001 From: Andrey Andreev Date: Thu, 5 Jul 2012 15:11:20 +0300 Subject: Clean-up the separate drivers' DB result classes from no longer needed methods --- system/database/DB_result.php | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) (limited to 'system/database/DB_result.php') diff --git a/system/database/DB_result.php b/system/database/DB_result.php index fb3cff340..ee0b61201 100644 --- a/system/database/DB_result.php +++ b/system/database/DB_result.php @@ -68,9 +68,20 @@ class CI_DB_result { */ public function num_rows() { - return is_int($this->num_rows) - ? $this->num_rows - : $this->num_rows = 0; + if (is_int($this->num_rows)) + { + return $this->num_rows; + } + elseif (count($this->result_array) > 0) + { + return $this->num_rows = count($this->result_array); + } + elseif (count($this->result_object) > 0) + { + return $this->num_rows = count($this->result_object); + } + + return $this->num_rows = count($this->result_array()); } // -------------------------------------------------------------------- -- cgit v1.2.3-24-g4f1b