From b94b91afc77bcc133ff282559015933602bb2d3f Mon Sep 17 00:00:00 2001 From: Andrey Andreev Date: Wed, 4 Jul 2012 12:32:14 +0300 Subject: Some user guide updates --- user_guide_src/source/database/configuration.rst | 122 +++++++++++++---------- 1 file changed, 69 insertions(+), 53 deletions(-) (limited to 'user_guide_src/source/database/configuration.rst') diff --git a/user_guide_src/source/database/configuration.rst b/user_guide_src/source/database/configuration.rst index 7a19c840f..c17de600a 100644 --- a/user_guide_src/source/database/configuration.rst +++ b/user_guide_src/source/database/configuration.rst @@ -12,26 +12,44 @@ it the respective environment config folder. The config settings are stored in a multi-dimensional array with this prototype:: - $db['default']['hostname'] = "localhost"; - $db['default']['username'] = "root"; - $db['default']['password'] = ""; - $db['default']['database'] = "database_name"; - $db['default']['dbdriver'] = "mysql"; - $db['default']['dbprefix'] = ""; - $db['default']['pconnect'] = TRUE; - $db['default']['db_debug'] = FALSE; - $db['default']['cache_on'] = FALSE; - $db['default']['cachedir'] = ""; - $db['default']['char_set'] = "utf8"; - $db['default']['dbcollat'] = "utf8_general_ci"; - $db['default']['swap_pre'] = ""; - $db['default']['autoinit'] = TRUE; - $db['default']['stricton'] = FALSE; - -If you use PDO as your dbdriver, you can specify the full DSN string describe a connection to the database like this:: - + $db['default'] = array( + 'dsn' => '', + 'hostname' => 'localhost', + 'username' => 'root', + 'password' => '', + 'database' => 'database_name', + 'dbdriver' => 'mysqli', + 'dbprefix' => '', + 'pconnect' => TRUE, + 'db_debug' => TRUE, + 'cache_on' => FALSE, + 'cachedir' => '', + 'char_set' => 'utf8', + 'dbcollat' => 'utf8_general_ci', + 'swap_pre' => '', + 'autoinit' => TRUE, + 'stricton' => FALSE, + 'failover' => array() + ); + +Some database drivers (such as PDO, PostgreSQL, Oracle, ODBC) might +require a full DSN string to be provided. If that is the case, you +should use the 'dsn' configuration setting, as if you're using the +driver's underlying native PHP extension, like this:: + + // PDO $db['default']['dsn'] = 'pgsql:host=localhost;port=5432;dbname=database_name'; + // Oracle + $db['default']['dsn'] = '//localhost/XE'; + +.. note:: If you do not specify a DSN string for a driver that requires it, CodeIgniter + will try to build it with the rest of the provided settings. + +.. note:: If you provide a DSN string and it is missing some valid settings (e.g. the + database character set), which are present in the rest of the configuration + fields, CodeIgniter will append them. + You can also specify failovers for the situation when the main connection cannot connect for some reason. These failovers can be specified by setting the failover for a connection like this:: @@ -41,7 +59,7 @@ These failovers can be specified by setting the failover for a connection like t 'username' => '', 'password' => '', 'database' => '', - 'dbdriver' => 'mysql', + 'dbdriver' => 'mysqli', 'dbprefix' => '', 'pconnect' => TRUE, 'db_debug' => TRUE, @@ -58,7 +76,7 @@ These failovers can be specified by setting the failover for a connection like t 'username' => '', 'password' => '', 'database' => '', - 'dbdriver' => 'mysql', + 'dbdriver' => 'mysqli', 'dbprefix' => '', 'pconnect' => TRUE, 'db_debug' => TRUE, @@ -81,30 +99,34 @@ production, test, etc.) under a single installation, you can set up a connection group for each, then switch between groups as needed. For example, to set up a "test" environment you would do this:: - $db['test']['hostname'] = "localhost"; - $db['test']['username'] = "root"; - $db['test']['password'] = ""; - $db['test']['database'] = "database_name"; - $db['test']['dbdriver'] = "mysql"; - $db['test']['dbprefix'] = ""; - $db['test']['pconnect'] = TRUE; - $db['test']['db_debug'] = FALSE; - $db['test']['cache_on'] = FALSE; - $db['test']['cachedir'] = ""; - $db['test']['char_set'] = "utf8"; - $db['test']['dbcollat'] = "utf8_general_ci"; - $db['test']['swap_pre'] = ""; - $db['test']['autoinit'] = TRUE; - $db['test']['stricton'] = FALSE; + $db['test'] = array( + 'dsn' => '', + 'hostname' => 'localhost', + 'username' => 'root', + 'password' => '', + 'database' => 'database_name', + 'dbdriver' => 'mysqli', + 'dbprefix' => '', + 'pconnect' => TRUE, + 'db_debug' => TRUE, + 'cache_on' => FALSE, + 'cachedir' => '', + 'char_set' => 'utf8', + 'dbcollat' => 'utf8_general_ci', + 'swap_pre' => '', + 'autoinit' => TRUE, + 'stricton' => FALSE, + 'failover' => array() + ); Then, to globally tell the system to use that group you would set this variable located in the config file:: - $active_group = "test"; + $active_group = 'test'; -Note: The name "test" is arbitrary. It can be anything you want. By -default we've used the word "default" for the primary connection, but it -too can be renamed to something more relevant to your project. +.. note:: The name 'test' is arbitrary. It can be anything you want. By + default we've used the word "default" for the primary connection, + but it too can be renamed to something more relevant to your project. Query Builder ------------- @@ -119,8 +141,8 @@ when the database classes are initialized. $query_builder = TRUE; -.. note:: that some CodeIgniter classes such as Sessions require Active - Records be enabled to access certain functionality. +.. note:: that some CodeIgniter classes such as Sessions require Query + Builder to be enabled to access certain functionality. Explanation of Values: ---------------------- @@ -128,11 +150,12 @@ Explanation of Values: ====================== ================================================================================================== Name Config Description ====================== ================================================================================================== -**hostname** The hostname of your database server. Often this is "localhost". +**dsn** The DSN connect string (an all-in-one configuration sequence). +**hostname** The hostname of your database server. Often this is 'localhost'. **username** The username used to connect to the database. **password** The password used to connect to the database. **database** The name of the database you want to connect to. -**dbdriver** The database type. ie: mysql, postgre, odbc, etc. Must be specified in lower case. +**dbdriver** The database type. ie: mysqli, postgre, odbc, etc. Must be specified in lower case. **dbprefix** An optional table prefix which will added to the table name when running :doc: `Query Builder ` queries. This permits multiple CodeIgniter installations to share one database. @@ -144,14 +167,7 @@ Explanation of Values: **char_set** The character set used in communicating with the database. **dbcollat** The character collation used in communicating with the database - .. note:: For MySQL and MySQLi databases, this setting is only used - as a backup if your server is running PHP < 5.2.3 or MySQL < 5.0.7 - (and in table creation queries made with DB Forge). There is an - incompatibility in PHP with mysql_real_escape_string() which can - make your site vulnerable to SQL injection if you are using a - multi-byte character set and are running versions lower than these. - Sites using Latin-1 or UTF-8 database character set and collation are - unaffected. + .. note:: Only used in the 'mysql' and 'mysqli' drivers. **swap_pre** A default table prefix that should be swapped with dbprefix. This is useful for distributed applications where you might run manually written queries, and need the prefix to still be @@ -163,11 +179,11 @@ Explanation of Values: **port** The database port number. To use this value you have to add a line to the database config array. :: - $db['default']['port'] = 5432; + $db['default']['port'] = 5432; ====================== ================================================================================================== .. note:: Depending on what database platform you are using (MySQL, PostgreSQL, etc.) not all values will be needed. For example, when using SQLite you will not need to supply a username or password, and the database name will be the path to your database file. The information above assumes - you are using MySQL. + you are using MySQL. \ No newline at end of file -- cgit v1.2.3-24-g4f1b From cdb481b92de54f7069039f6d0aa92b32c4e543fa Mon Sep 17 00:00:00 2001 From: Michiel Vugteveen Date: Tue, 21 Aug 2012 10:11:16 +0200 Subject: driver fix + userguide + changelog --- user_guide_src/source/database/configuration.rst | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'user_guide_src/source/database/configuration.rst') diff --git a/user_guide_src/source/database/configuration.rst b/user_guide_src/source/database/configuration.rst index c17de600a..636b5b5b2 100644 --- a/user_guide_src/source/database/configuration.rst +++ b/user_guide_src/source/database/configuration.rst @@ -28,6 +28,7 @@ prototype:: 'dbcollat' => 'utf8_general_ci', 'swap_pre' => '', 'autoinit' => TRUE, + 'compress' => TRUE, 'stricton' => FALSE, 'failover' => array() ); @@ -69,6 +70,7 @@ These failovers can be specified by setting the failover for a connection like t 'dbcollat' => 'utf8_general_ci', 'swap_pre' => '', 'autoinit' => TRUE, + 'compress' => TRUE, 'stricton' => FALSE ), array( @@ -86,6 +88,7 @@ These failovers can be specified by setting the failover for a connection like t 'dbcollat' => 'utf8_general_ci', 'swap_pre' => '', 'autoinit' => TRUE, + 'compress' => TRUE, 'stricton' => FALSE ) ); @@ -115,6 +118,7 @@ example, to set up a "test" environment you would do this:: 'dbcollat' => 'utf8_general_ci', 'swap_pre' => '', 'autoinit' => TRUE, + 'compress' => TRUE, 'stricton' => FALSE, 'failover' => array() ); @@ -174,11 +178,12 @@ Explanation of Values: customizable by the end user. **autoinit** Whether or not to automatically connect to the database when the library loads. If set to false, the connection will take place prior to executing the first query. +**compress** Whether or not to use client compression for MySQL or MySQLi. **stricton** TRUE/FALSE (boolean) - Whether to force "Strict Mode" connections, good for ensuring strict SQL while developing an application. **port** The database port number. To use this value you have to add a line to the database config array. :: - + $db['default']['port'] = 5432; ====================== ================================================================================================== -- cgit v1.2.3-24-g4f1b