diff options
Diffstat (limited to 'user_guide_src')
| -rw-r--r-- | user_guide_src/source/database/helpers.rst | 61 |
1 files changed, 31 insertions, 30 deletions
diff --git a/user_guide_src/source/database/helpers.rst b/user_guide_src/source/database/helpers.rst index 77bf1b5d2..2d997a9e0 100644 --- a/user_guide_src/source/database/helpers.rst +++ b/user_guide_src/source/database/helpers.rst @@ -1,9 +1,11 @@ -###################### -Query Helper Functions -###################### +#################### +Query Helper Methods +#################### -$this->db->insert_id() -====================== +Information From Executing a Query +================================== + +**$this->db->insert_id()** The insert ID number when performing database inserts. @@ -11,8 +13,7 @@ The insert ID number when performing database inserts. driver, this function requires a $name parameter, which specifies the appropriate sequence to check for the insert id. -$this->db->affected_rows() -========================== +**$this->db->affected_rows()** Displays the number of affected rows, when doing "write" type queries (insert, update, etc.). @@ -22,8 +23,23 @@ Displays the number of affected rows, when doing "write" type queries affected rows. By default this hack is enabled but it can be turned off in the database driver file. -$this->db->count_all() -====================== +**$this->db->last_query()** + +Returns the last query that was run (the query string, not the result). +Example:: + + $str = $this->db->last_query(); + + // Produces: SELECT * FROM sometable.... + + +.. note:: Disabling the **save_queries** setting in your database + configuration will render this function useless. + +Information About Your Database +=============================== + +**$this->db->count_all()** Permits you to determine the number of rows in a particular table. Submit the table name in the first parameter. Example:: @@ -32,38 +48,24 @@ Submit the table name in the first parameter. Example:: // Produces an integer, like 25 -$this->db->platform() -===================== +**$this->db->platform()** Outputs the database platform you are running (MySQL, MS SQL, Postgres, etc...):: echo $this->db->platform(); -$this->db->version() -==================== +**$this->db->version()** Outputs the database version you are running:: echo $this->db->version(); -$this->db->last_query() -======================= - -Returns the last query that was run (the query string, not the result). -Example:: - - $str = $this->db->last_query(); - - // Produces: SELECT * FROM sometable.... - - -.. note:: Disabling the **save_queries** setting in your database - configuration will render this function useless. - -$this->db->insert_string() +Making Your Queries Easier ========================== +**$this->db->insert_string()** + This function simplifies the process of writing database inserts. It returns a correctly formatted SQL insert string. Example:: @@ -78,8 +80,7 @@ array with the data to be inserted. The above example produces:: .. note:: Values are automatically escaped, producing safer queries. -$this->db->update_string() -========================== +**$this->db->update_string()** This function simplifies the process of writing database updates. It returns a correctly formatted SQL update string. Example:: |