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authorJames L Parry <jim_parry@bcit.ca>2014-12-06 12:02:51 +0100
committerJames L Parry <jim_parry@bcit.ca>2014-12-06 12:02:51 +0100
commit82f5d7cf02bab8f76914f34dfc49dfedb245923e (patch)
treecbbce4104bf5ee8f95da26cad2e8964f20cc7b69 /user_guide_src/source
parent141288d1fb32c11d28ea46f06eedafff76e795c4 (diff)
User Guide - query builder
Fleshing out the API reference Signed-off-by:James L Parry <jim_parry@bcit.ca>
Diffstat (limited to 'user_guide_src/source')
-rw-r--r--user_guide_src/source/database/query_builder_reference.rst217
1 files changed, 217 insertions, 0 deletions
diff --git a/user_guide_src/source/database/query_builder_reference.rst b/user_guide_src/source/database/query_builder_reference.rst
index f20a1e70d..7c379ae84 100644
--- a/user_guide_src/source/database/query_builder_reference.rst
+++ b/user_guide_src/source/database/query_builder_reference.rst
@@ -21,3 +21,220 @@ Class Reference
Generates a platform-specific query string that counts
all records returned by an Query Builder query.
+ .. method:: dbprefix($table = '')
+
+ :param string $table: The table name to work with
+ :returns: The modified table name
+ :rtype: string
+
+ Prepends a database prefix if one exists in configuration
+
+ .. method:: delete($table = '', $where = '', $limit = NULL, $reset_data = TRUE)
+
+ :param mixed $table: The table(s) to delete from; string or array
+ :param string $where: The where clause
+ :param string $limit: The limit clause
+ :param boolean $reset_data: TRUE to reset the query "write" clause
+ :returns: DB_query_builder instance, FALSE on failure
+ :rtype: mixed
+
+ Compiles a delete string and runs the query
+
+ .. method:: distinct($val = TRUE)
+
+ :param boolean $val: Desired value of the "distinct" flag
+ :returns: DB_query_driver instance
+ :rtype: object
+
+ Sets a flag which tells the query string compiler to add DISTINCT
+
+ .. method:: empty_table($table = '')
+
+ :param string $table: Name of table to empty
+ :returns: DB_driver instance
+ :rtype: object
+
+ Compiles a delete string and runs "DELETE FROM table"
+
+ .. method:: flush_cache()
+
+ :rtype: void
+
+ Empties the QB cache
+
+ .. method:: from($from)
+
+ :param mixed $from: Can be a string or array
+ :returns: DB_query_builder instance
+ :rtype: object
+
+ Generates the FROM portion of the query
+
+ .. method:: get($table = '', $limit = NULL, $offset = NULL)
+
+ :param string $table: The table to query
+ :param string $limit: The limit clause
+ :param string $offset: The offset clause
+ :returns: DB_result
+ :rtype: object
+
+ Compiles the select statement based on the other functions
+ called and runs the query
+
+ .. method:: get_compiled_delete($table = '', $reset = TRUE)
+
+ :param string $table: Name of the table to delete from
+ :param boolean $reset: TRUE: reset QB values; FALSE: leave QB values alone
+ :returns: The SQL string
+ :rtype: string
+
+ Compiles a delete query string and returns the sql
+
+ .. method:: get_compiled_insert($table = '', $reset = TRUE)
+
+ :param string $table: Name of the table to insert into
+ :param boolean $reset: TRUE: reset QB values; FALSE: leave QB values alone
+ :returns: The SQL string
+ :rtype: string
+
+ Compiles an insert query string and returns the sql
+
+ .. method:: get_compiled_select($table = '', $reset = TRUE)
+
+ :param string $table: Name of the table to select from
+ :param boolean $reset: TRUE: reset QB values; FALSE: leave QB values alone
+ :returns: The SQL string
+ :rtype: string
+
+ Compiles a select query string and returns the sql
+
+ .. method:: get_compiled_update($table = '', $reset = TRUE)
+
+ :param string $table: Name of the table to update
+ :param boolean $reset: TRUE: reset QB values; FALSE: leave QB values alone
+ :returns: The SQL string
+ :rtype: string
+
+ Compiles an update query string and returns the sql
+
+ .. method:: get_where($table = '', $where = NULL, $limit = NULL, $offset = NULL)
+
+ :param mixed $table: The table(s) to delete from; string or array
+ :param string $where: The where clause
+ :param int $limit: Number of records to return
+ :param int $offset: Number of records to skip
+ :returns: DB_result
+ :rtype: object
+
+ Allows the where clause, limit and offset to be added directly
+
+ .. method:: group_by($by, $escape = NULL)
+
+ :param mixed $by: Field(s) to group by; string or array
+ :returns: DB_query_builder instance
+ :rtype: object
+
+ Adds a GROUPBY clause to the query
+
+ .. method:: group_end()
+
+ :returns: DB_query_builder instance
+ :rtype: object
+
+ Ends a query group
+
+ .. method:: group_start($not = '', $type = 'AND ')
+
+ :param string $not: (Internal use only)
+ :param string $type: (Internal use only)
+ :returns: DB_query_builder instance
+ :rtype: object
+
+ Starts a query group.
+
+ .. method:: having($key, $value = NULL, $escape = NULL)
+
+ :param string $key: Key (string) or associative array of values
+ :param string $value: Value sought if the key is a string
+ :param string $escape: TRUE to escape the content
+ :returns: DB_query_builder instance
+ :rtype: object
+
+ Separates multiple calls with 'AND'.
+
+ .. method:: insert($table = '', $set = NULL, $escape = NULL)
+
+ :param string $table: The table to insert data into
+ :param array $set: An associative array of insert values
+ :param boolean $table: Whether to escape values and identifiers
+ :returns: DB_result
+ :rtype: object
+
+ Compiles an insert string and runs the query
+
+ .. method:: insert_batch($table = '', $set = NULL, $escape = NULL)
+
+ :param string $table: The table to insert data into
+ :param array $set: An associative array of insert values
+ :param boolean $escape: Whether to escape values and identifiers
+ :returns: Number of rows inserted or FALSE on failure
+ :rtype: mixed
+
+ Compiles batch insert strings and runs the queries
+
+ .. method:: join($table, $cond, $type = '', $escape = NULL)
+
+ :param string $table: Name of the table being joined
+ :param string $cond: The JOIN condition
+ :param string $type: The JOIN type
+ :param boolean $escape: Whether to escape values and identifiers
+ :returns: DB_query_builder instance
+ :rtype: object
+
+ Generates the JOIN portion of the query
+
+ .. method:: like($field, $match = '', $side = 'both', $escape = NULL)
+
+ :param string $field: Name of field to compare
+ :param string $match: Text portion to match
+ :param string $side: Position of a match
+ :param boolean $escape: Whether to escape values and identifiers
+ :returns: DB_query_builder instance
+ :rtype: object
+
+ Generates a %LIKE% portion of the query.
+ Separates multiple calls with 'AND'.
+
+ .. method:: limit($value, $offset = FALSE)
+
+ :param mixed $value: Number of rows to limit the results to, NULL for no limit
+ :param mixed $offset: Number of rows to skip, FALSE if no offset used
+ :returns: DB_query_builder instance
+ :rtype: object
+
+ Specify a limit and offset for the query
+
+ .. method:: x
+
+ :param string $x: x
+ :returns: x
+ :rtype: x
+
+ x
+
+ .. method:: x
+
+ :param string $x: x
+ :returns: x
+ :rtype: x
+
+ x
+
+ .. method:: x
+
+ :param string $x: x
+ :returns: x
+ :rtype: x
+
+ x
+