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authorAndrey Andreev <narf@bofh.bg>2012-07-05 15:31:12 +0200
committerAndrey Andreev <narf@bofh.bg>2012-07-05 15:31:12 +0200
commit92d18a7b6c46eadc9db58ca60ffce3980e2313ff (patch)
treeb0a869a5312279d65c3e920ffbf0b32344ab1d0f /system/database/drivers/sqlite3
parentd66872ae5d7cd4d2b531251a9c63528e81af3322 (diff)
parent7ca36131d881d3f83a86d824263d4abd65439e12 (diff)
Merge upstream branch
Diffstat (limited to 'system/database/drivers/sqlite3')
-rw-r--r--system/database/drivers/sqlite3/sqlite3_driver.php6
-rw-r--r--system/database/drivers/sqlite3/sqlite3_result.php451
2 files changed, 1 insertions, 456 deletions
diff --git a/system/database/drivers/sqlite3/sqlite3_driver.php b/system/database/drivers/sqlite3/sqlite3_driver.php
index 1c6533f22..cc35d319f 100644
--- a/system/database/drivers/sqlite3/sqlite3_driver.php
+++ b/system/database/drivers/sqlite3/sqlite3_driver.php
@@ -50,12 +50,6 @@ class CI_DB_sqlite3_driver extends CI_DB {
protected $_like_escape_str = ' ESCAPE \'%s\' ';
protected $_like_escape_chr = '!';
- /**
- * The syntax to count rows is slightly different across different
- * database engines, so this string appears in each driver and is
- * used for the count_all() and count_all_results() functions.
- */
- protected $_count_string = 'SELECT COUNT(*) AS ';
protected $_random_keyword = ' RANDOM()';
/**
diff --git a/system/database/drivers/sqlite3/sqlite3_result.php b/system/database/drivers/sqlite3/sqlite3_result.php
index 946b36557..4d59bb08a 100644
--- a/system/database/drivers/sqlite3/sqlite3_result.php
+++ b/system/database/drivers/sqlite3/sqlite3_result.php
@@ -33,33 +33,14 @@
* @category Database
* @author Andrey Andreev
* @link http://codeigniter.com/user_guide/database/
+ * @since 3.0
*/
class CI_DB_sqlite3_result extends CI_DB_result {
- // Overwriting the parent here, so we have a way to know if it's already set
- public $num_rows;
-
// num_fields() might be called multiple times, so we'll use this one to cache it's result
protected $_num_fields;
/**
- * Number of rows in the result set
- *
- * @return int
- */
- public function num_rows()
- {
- /* The SQLite3 driver doesn't have a graceful way to do this,
- * so we'll have to do it on our own.
- */
- return is_int($this->num_rows)
- ? $this->num_rows
- : $this->num_rows = count($this->result_array());
- }
-
- // --------------------------------------------------------------------
-
- /**
* Number of fields in the result set
*
* @return int
@@ -165,436 +146,6 @@ class CI_DB_sqlite3_result extends CI_DB_result {
// --------------------------------------------------------------------
/**
- * Query result. "array" version.
- *
- * return array
- */
- public function result_array()
- {
- if (count($this->result_array) > 0)
- {
- return $this->result_array;
- }
- elseif (is_array($this->row_data))
- {
- if (count($this->row_data) === 0)
- {
- return $this->result_array;
- }
- else
- {
- $row_index = count($this->row_data);
- }
- }
- else
- {
- $row_index = 0;
- $this->row_data = array();
- }
-
- $row = NULL;
- while ($row = $this->_fetch_assoc())
- {
- $this->row_data[$row_index++] = $row;
- }
-
- return $this->result_array = $this->row_data;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Query result. "object" version.
- *
- * @return array
- */
- public function result_object()
- {
- if (count($this->result_object) > 0)
- {
- return $this->result_object;
- }
- elseif (count($this->result_array) > 0)
- {
- for ($i = 0, $c = count($this->result_array); $i < $c; $i++)
- {
- $this->result_object[] = (object) $this->result_array[$i];
- }
-
- return $this->result_object;
- }
- elseif (is_array($this->row_data))
- {
- if (count($this->row_data) === 0)
- {
- return $this->result_object;
- }
- else
- {
- $row_index = count($this->row_data);
- for ($i = 0; $i < $row_index; $i++)
- {
- $this->result_object[$i] = (object) $this->row_data[$i];
- }
- }
- }
- else
- {
- $row_index = 0;
- $this->row_data = array();
- }
-
- $row = NULL;
- while ($row = $this->_fetch_assoc())
- {
- $this->row_data[$row_index] = $row;
- $this->result_object[$row_index++] = (object) $row;
- }
-
- $this->result_array = $this->row_data;
-
- /* As described for the num_rows() method - there's no easy
- * way to get the number of rows selected. Our work-around
- * solution (as in here as well) first checks if result_array
- * exists and returns its count. It doesn't however check for
- * custom_object_result, so - do it here.
- */
- if ( ! is_int($this->num_rows))
- {
- $this->num_rows = count($this->result_object);
- }
-
- return $this->result_object;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Query result. Custom object version.
- *
- * @param string class name used to instantiate rows to
- * @return array
- */
- public function custom_result_object($class_name)
- {
- if (array_key_exists($class_name, $this->custom_result_object))
- {
- return $this->custom_result_object[$class_name];
- }
-
- if ( ! class_exists($class_name) OR ! is_object($this->result_id) OR $this->num_rows() === 0)
- {
- return array();
- }
-
- /* Even if result_array hasn't been set prior to custom_result_object being called,
- * num_rows() has done it.
- */
- $data = &$this->result_array;
-
- $result_object = array();
- for ($i = 0, $c = count($data); $i < $c; $i++)
- {
- $result_object[$i] = new $class_name();
- foreach ($data[$i] as $key => $value)
- {
- $result_object[$i]->$key = $value;
- }
- }
-
- /* As described for the num_rows() method - there's no easy
- * way to get the number of rows selected. Our work-around
- * solution (as in here as well) first checks if result_array
- * exists and returns its count. It doesn't however check for
- * custom_object_result, so - do it here.
- */
- if ( ! is_int($this->num_rows))
- {
- $this->num_rows = count($result_object);
- }
-
- // Cache and return the array
- return $this->custom_result_object[$class_name] = $result_object;
- }
-
- // --------------------------------------------------------------------
-
- /* Single row result.
- *
- * Acts as a wrapper for row_object(), row_array()
- * and custom_row_object(). Also used by first_row(), next_row()
- * and previous_row().
- *
- * @param int row index
- * @param string ('object', 'array' or a custom class name)
- * @return mixed whatever was passed to the second parameter
- */
- public function row($n = 0, $type = 'object')
- {
- if ($type === 'object')
- {
- return $this->row_object($n);
- }
- elseif ($type === 'array')
- {
- return $this->row_array($n);
- }
-
- return $this->custom_row_object($n, $type);
- }
-
- // --------------------------------------------------------------------
-
- /* Single row result. Array version.
- *
- * @param int row index
- * @return array
- */
- public function row_array($n = 0)
- {
- // Make sure $n is not a string
- if ( ! is_int($n))
- {
- $n = (int) $n;
- }
-
- /* If row_data is initialized, it means that we've already tried
- * (at least) to fetch some data, so ... check if we already have
- * this row.
- */
- if (is_array($this->row_data))
- {
- /* If we already have row_data[$n] - return it.
- *
- * If we enter the elseif, there's a number of reasons to
- * return an empty array:
- *
- * - count($this->row_data) === 0 means there are no results
- * - num_rows being set or result_array having count() > 0 means
- * that we've already fetched all data and $n is greater than
- * our highest row index available
- * - $n < $this->current_row means that if such row existed,
- * we would've already returned it, therefore $n is an
- * invalid index
- */
- if (isset($this->row_data[$n])) // We already have this row
- {
- $this->current_row = $n;
- return $this->row_data[$n];
- }
- elseif (count($this->row_data) === 0 OR is_int($this->num_rows)
- OR count($this->result_array) > 0 OR $n < $this->current_row)
- {
- // No such row exists
- return NULL;
- }
-
- // Get the next row index that would actually need to be fetched
- $current_row = ($this->current_row < count($this->row_data)) ? count($this->row_data) : $this->current_row + 1;
- }
- else
- {
- $current_row = $this->current_row = 0;
- $this->row_data = array();
- }
-
- /* Fetch more data, if available
- *
- * NOTE: Operator precedence is important here, if you change
- * 'AND' with '&&' - it WILL BREAK the results, as
- * $row will be assigned the scalar value of both
- * expressions!
- */
- while ($row = $this->_fetch_assoc() AND $current_row <= $n)
- {
- $this->row_data[$current_row++] = $row;
- }
-
- // This would mean that there's no (more) data to fetch
- if ( ! is_array($this->row_data) OR ! isset($this->row_data[$n]))
- {
- // Cache what we already have
- if (is_array($this->row_data))
- {
- $this->num_rows = count($this->row_data);
- /* Usually, row_data could have less elements than result_array,
- * but at this point - they should be exactly the same.
- */
- $this->result_array = $this->row_data;
- }
- else
- {
- $this->num_rows = 0;
- }
-
- return NULL;
- }
-
- $this->current_row = $n;
- return $this->row_data[$n];
- }
-
- // --------------------------------------------------------------------
-
- /* Single row result. Object version.
- *
- * @param int row index
- * @return mixed object if row found; empty array if not
- */
- public function row_object($n = 0)
- {
- // Make sure $n is not a string
- if ( ! is_int($n))
- {
- $n = (int) $n;
- }
-
- /* Logic here is exactly the same as in row_array,
- * except we have to cast row_data[$n] to an object.
- *
- * If we already have result_object though - we can
- * directly return from it.
- */
- if (isset($this->result_object[$n]))
- {
- $this->current_row = $n;
- return $this->result_object[$n];
- }
-
- $row = $this->row_array($n);
- // Cast only if the row exists
- if (count($row) > 0)
- {
- $this->current_row = $n;
- return (object) $row;
- }
-
- return NULL;
- }
-
- // --------------------------------------------------------------------
-
- /* Single row result. Custom object version.
- *
- * @param int row index
- * @param string custom class name
- * @return mixed custom object if row found; empty array otherwise
- */
- public function custom_row_object($n = 0, $class_name)
- {
- // Make sure $n is not a string
- if ( ! is_int($n))
- {
- $n = (int) $n;
- }
-
- if (array_key_exists($class_name, $this->custom_result_object))
- {
- /* We already have a the whole result set with this class_name,
- * return the specified row if it exists, and an empty array if
- * it doesn't.
- */
- if (isset($this->custom_result_object[$class_name][$n]))
- {
- $this->current_row = $n;
- return $this->custom_result_object[$class_name][$n];
- }
- else
- {
- return NULL;
- }
- }
- elseif ( ! class_exists($class_name)) // No such class exists
- {
- return NULL;
- }
-
- $row = $this->row_array($n);
- // A non-array would mean that the row doesn't exist
- if ( ! is_array($row))
- {
- return NULL;
- }
-
- // Convert to the desired class and return
- $row_object = new $class_name();
- foreach ($row as $key => $value)
- {
- $row_object->$key = $value;
- }
-
- $this->current_row = $n;
- return $row_object;
- }
-
- // --------------------------------------------------------------------
-
- /* First row result.
- *
- * @param string ('object', 'array' or a custom class name)
- * @return mixed whatever was passed to the second parameter
- */
- public function first_row($type = 'object')
- {
- return $this->row(0, $type);
- }
-
- // --------------------------------------------------------------------
-
- /* Last row result.
- *
- * @param string ('object', 'array' or a custom class name)
- * @return mixed whatever was passed to the second parameter
- */
- public function last_row($type = 'object')
- {
- $result = &$this->result($type);
- if ( ! isset($this->num_rows))
- {
- $this->num_rows = count($result);
- }
- $this->current_row = $this->num_rows - 1;
- return $result[$this->current_row];
- }
-
- // --------------------------------------------------------------------
-
- /* Next row result.
- *
- * @param string ('object', 'array' or a custom class name)
- * @return mixed whatever was passed to the second parameter
- */
- public function next_row($type = 'object')
- {
- if (is_array($this->row_data))
- {
- $count = count($this->row_data);
- $n = ($this->current_row > $count OR ($this->current_row === 0 && $count === 0)) ? $count : $this->current_row + 1;
- }
- else
- {
- $n = 0;
- }
-
- return $this->row($n, $type);
- }
-
- // --------------------------------------------------------------------
-
- /* Previous row result.
- *
- * @param string ('object', 'array' or a custom class name)
- * @return mixed whatever was passed to the second parameter
- */
- public function previous_row($type = 'object')
- {
- $n = ($this->current_row !== 0) ? $this->current_row - 1 : 0;
- return $this->row($n, $type);
- }
-
- // --------------------------------------------------------------------
-
- /**
* Data Seek
*
* Moves the internal pointer to the desired offset. We call