Remove 'autoinit' DB setting

It doesn't make sense to do a load->database() call
but not connect to the database. IIRC there was more
stuff in CI_DB_driver::initialize() at some point,
so that was probably the reason why the setting
existed in the first place. However, now it only
results in users making invalid bug reports because
they don't understand the feature ...

Examples during just the past 2 weeks: #3571 #3601 #3607

7 files changed, 0 insertions, 28 deletions

diff --git a/system/database/drivers/cubrid/cubrid_driver.php b/system/database/drivers/cubrid/cubrid_driver.php
index 402117978..f80b4db54 100644
--- a/system/database/drivers/cubrid/cubrid_driver.php
+++ b/system/database/drivers/cubrid/cubrid_driver.php
@@ -163,10 +163,6 @@ class CI_DB_cubrid_driver extends CI_DB {
 		{
 			return $this->data_cache['version'];
 		}
-		elseif ( ! $this->conn_id)
-		{
-			$this->initialize();
-		}
 
 		return ( ! $this->conn_id OR ($version = cubrid_get_server_info($this->conn_id)) === FALSE)
 			? FALSE
diff --git a/system/database/drivers/mysql/mysql_driver.php b/system/database/drivers/mysql/mysql_driver.php
index f8e9b6d61..df0f24920 100644
--- a/system/database/drivers/mysql/mysql_driver.php
+++ b/system/database/drivers/mysql/mysql_driver.php
@@ -223,10 +223,6 @@ class CI_DB_mysql_driver extends CI_DB {
 		{
 			return $this->data_cache['version'];
 		}
-		elseif ( ! $this->conn_id)
-		{
-			$this->initialize();
-		}
 
 		if ( ! $this->conn_id OR ($version = mysql_get_server_info($this->conn_id)) === FALSE)
 		{
diff --git a/system/database/drivers/mysqli/mysqli_driver.php b/system/database/drivers/mysqli/mysqli_driver.php
index 22a8ba678..e953db052 100644
--- a/system/database/drivers/mysqli/mysqli_driver.php
+++ b/system/database/drivers/mysqli/mysqli_driver.php
@@ -204,10 +204,6 @@ class CI_DB_mysqli_driver extends CI_DB {
 		{
 			return $this->data_cache['version'];
 		}
-		elseif ( ! $this->conn_id)
-		{
-			$this->initialize();
-		}
 
 		return $this->data_cache['version'] = $this->conn_id->server_info;
 	}
diff --git a/system/database/drivers/oci8/oci8_driver.php b/system/database/drivers/oci8/oci8_driver.php
index b87b41112..4010995a1 100644
--- a/system/database/drivers/oci8/oci8_driver.php
+++ b/system/database/drivers/oci8/oci8_driver.php
@@ -243,10 +243,6 @@ class CI_DB_oci8_driver extends CI_DB {
 		{
 			return $this->data_cache['version'];
 		}
-		elseif ( ! $this->conn_id)
-		{
-			$this->initialize();
-		}
 
 		if ( ! $this->conn_id OR ($version = oci_server_version($this->conn_id)) === FALSE)
 		{
diff --git a/system/database/drivers/pdo/pdo_driver.php b/system/database/drivers/pdo/pdo_driver.php
index 68aeb0eef..cc77e9568 100644
--- a/system/database/drivers/pdo/pdo_driver.php
+++ b/system/database/drivers/pdo/pdo_driver.php
@@ -156,10 +156,6 @@ class CI_DB_pdo_driver extends CI_DB {
 		{
 			return $this->data_cache['version'];
 		}
-		elseif ( ! $this->conn_id)
-		{
-			$this->initialize();
-		}
 
 		// Not all subdrivers support the getAttribute() method
 		try
diff --git a/system/database/drivers/postgre/postgre_driver.php b/system/database/drivers/postgre/postgre_driver.php
index 3f3e3f018..7be07c3bf 100644
--- a/system/database/drivers/postgre/postgre_driver.php
+++ b/system/database/drivers/postgre/postgre_driver.php
@@ -213,10 +213,6 @@ class CI_DB_postgre_driver extends CI_DB {
 		{
 			return $this->data_cache['version'];
 		}
-		elseif ( ! $this->conn_id)
-		{
-			$this->initialize();
-		}
 
 		if ( ! $this->conn_id OR ($pg_version = pg_version($this->conn_id)) === FALSE)
 		{
diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 8f17c8f96..16f77fab2 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -292,10 +292,6 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 		{
 			return $this->data_cache['version'];
 		}
-		elseif ( ! $this->conn_id)
-		{
-			$this->initialize();
-		}
 
 		if ( ! $this->conn_id OR ($info = sqlsrv_server_info($this->conn_id)) === FALSE)
 		{