diff options
Diffstat (limited to 'user_guide_src/source/database')
| -rw-r--r-- | user_guide_src/source/database/configuration.rst | 12 | ||||
| -rw-r--r-- | user_guide_src/source/database/query_builder.rst | 35 |
2 files changed, 45 insertions, 2 deletions
diff --git a/user_guide_src/source/database/configuration.rst b/user_guide_src/source/database/configuration.rst index c17de600a..668496324 100644 --- a/user_guide_src/source/database/configuration.rst +++ b/user_guide_src/source/database/configuration.rst @@ -28,6 +28,8 @@ prototype:: 'dbcollat' => 'utf8_general_ci', 'swap_pre' => '', 'autoinit' => TRUE, + 'encrypt' => FALSE, + 'compress' => FALSE, 'stricton' => FALSE, 'failover' => array() ); @@ -69,6 +71,8 @@ These failovers can be specified by setting the failover for a connection like t 'dbcollat' => 'utf8_general_ci', 'swap_pre' => '', 'autoinit' => TRUE, + 'encrypt' => FALSE, + 'compress' => FALSE, 'stricton' => FALSE ), array( @@ -86,6 +90,8 @@ These failovers can be specified by setting the failover for a connection like t 'dbcollat' => 'utf8_general_ci', 'swap_pre' => '', 'autoinit' => TRUE, + 'encrypt' => FALSE, + 'compress' => FALSE, 'stricton' => FALSE ) ); @@ -115,6 +121,8 @@ example, to set up a "test" environment you would do this:: 'dbcollat' => 'utf8_general_ci', 'swap_pre' => '', 'autoinit' => TRUE, + 'compress' => FALSE, + 'encrypt' => FALSE, 'stricton' => FALSE, 'failover' => array() ); @@ -174,11 +182,13 @@ 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. +**encrypt** Whether or not to use an encrypted connection. +**compress** Whether or not to use client compression (MySQL only). **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. :: - + $db['default']['port'] = 5432; ====================== ================================================================================================== diff --git a/user_guide_src/source/database/query_builder.rst b/user_guide_src/source/database/query_builder.rst index b86a0c8db..5380d0998 100644 --- a/user_guide_src/source/database/query_builder.rst +++ b/user_guide_src/source/database/query_builder.rst @@ -681,6 +681,35 @@ associative array of values. .. note:: All values are escaped automatically producing safer queries. +$this->db->replace() +==================== + +This method executes a REPLACE statement, which is basically the SQL +standard for (optional) DELETE + INSERT, using *PRIMARY* and *UNIQUE* +keys as the determining factor. +In our case, it will save you from the need to implement complex +logics with different combinations of ``select()``, ``update()``, +``delete()`` and ``insert()`` calls. + +Example:: + + $data = array( + 'title' => 'My title', + 'name' => 'My Name', + 'date' => 'My date' + ); + + $this->db->replace('table', $data); + + // Executes: REPLACE INTO mytable (title, name, date) VALUES ('My title', 'My name', 'My date') + +In the above example, if we assume that the *title* field is our primary +key, then if a row containing 'My title' as the *title* value, that row +will be deleted with our new row data replacing it. + +Usage of the ``set()`` method is also allowed and all fields are +automatically escaped, just like with ``insert()``. + $this->db->set() ================ @@ -740,7 +769,6 @@ Or an object:: $this->db->set($object); $this->db->insert('mytable'); - ************* Updating Data ************* @@ -792,6 +820,7 @@ Or as an array:: You may also use the $this->db->set() function described above when performing updates. + $this->db->update_batch() ========================= @@ -830,6 +859,10 @@ array of values, the third parameter is the where key. .. note:: All values are escaped automatically producing safer queries. +.. note:: ``affected_rows()`` won't give you proper results with this method, + due to the very nature of how it works. Instead, ``update_batch()`` + returns the number of rows affected. + $this->db->get_compiled_update() ================================ |