From 822e74ee39fffd2c35477be2bedfb37e78eb3bc1 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Fri, 16 Nov 2012 02:33:30 +0200
Subject: Improve DB field_data() for SQLite

---
 system/database/drivers/sqlite/sqlite_driver.php | 37 ++++++++++++++++++++----
 system/database/drivers/sqlite/sqlite_result.php |  6 ++--
 2 files changed, 33 insertions(+), 10 deletions(-)

(limited to 'system/database/drivers/sqlite')

diff --git a/system/database/drivers/sqlite/sqlite_driver.php b/system/database/drivers/sqlite/sqlite_driver.php
index 23f287b7e..8c706c242 100644
--- a/system/database/drivers/sqlite/sqlite_driver.php
+++ b/system/database/drivers/sqlite/sqlite_driver.php
@@ -296,16 +296,41 @@ class CI_DB_sqlite_driver extends CI_DB {
 	// --------------------------------------------------------------------
 
 	/**
-	 * Field data query
-	 *
-	 * Generates a platform-specific query so that the column data can be retrieved
+	 * Returns an object with field data
 	 *
 	 * @param	string	$table
-	 * @return	string
+	 * @return	array
 	 */
-	protected function _field_data($table)
+	public function field_data($table = '')
 	{
-		return 'SELECT * FROM '.$this->escape_identifiers($table).' LIMIT 1';
+		if ($table === '')
+		{
+			return ($this->db_debug) ? $this->display_error('db_field_param_missing') : FALSE;
+		}
+
+		if (($query = $this->query('PRAGMA TABLE_INFO('.$this->protect_identifiers($table, TRUE, NULL, FALSE).')')) === FALSE)
+		{
+			return FALSE;
+		}
+
+		$query = $query->result_array();
+		if (empty($query))
+		{
+			return FALSE;
+		}
+
+		$retval = array();
+		for ($i = 0, $c = count($query); $i < $c; $i++)
+		{
+			$retval[$i]			= new stdClass();
+			$retval[$i]->name		= $query[$i]['name'];
+			$retval[$i]->type		= $query[$i]['type'];
+			$retval[$i]->max_length		= NULL;
+			$retval[$i]->default		= $query[$i]['dflt_value'];
+			$retval[$i]->primary_key	= isset($query[$i]['pk']) ? (int) $query[$i]['pk'] : 0;
+		}
+
+		return $retval;
 	}
 
 	// --------------------------------------------------------------------
diff --git a/system/database/drivers/sqlite/sqlite_result.php b/system/database/drivers/sqlite/sqlite_result.php
index 0e6335f73..24f02a8b4 100644
--- a/system/database/drivers/sqlite/sqlite_result.php
+++ b/system/database/drivers/sqlite/sqlite_result.php
@@ -98,10 +98,8 @@ class CI_DB_sqlite_result extends CI_DB_result {
 		{
 			$retval[$i]			= new stdClass();
 			$retval[$i]->name		= sqlite_field_name($this->result_id, $i);
-			$retval[$i]->type		= 'varchar';
-			$retval[$i]->max_length		= 0;
-			$retval[$i]->primary_key	= 0;
-			$retval[$i]->default		= '';
+			$retval[$i]->type		= NULL;
+			$retval[$i]->max_length		= NULL;
 		}
 
 		return $retval;
-- 
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