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Diffstat (limited to 'user_guide_src/source/database/results.rst')
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1 files changed, 184 insertions, 1 deletions
diff --git a/user_guide_src/source/database/results.rst b/user_guide_src/source/database/results.rst index e06985130..044360ebb 100644 --- a/user_guide_src/source/database/results.rst +++ b/user_guide_src/source/database/results.rst @@ -4,6 +4,10 @@ Generating Query Results There are several ways to generate query results: +.. contents:: + :local: + :depth: 2 + ************* Result Arrays ************* @@ -238,4 +242,183 @@ TRUE on success or FALSE on failure. $row = $query->unbuffered_row(); .. note:: Not all database drivers support this feature and will return FALSE. - Most notably - you won't be able to use it with PDO.
\ No newline at end of file + Most notably - you won't be able to use it with PDO. + +*************** +Class Reference +*************** + +.. class:: CI_DB_result + + .. method:: custom_result_object($class_name) + + :param string $class_name: Class name for the results + :returns: Array of objects of type $class_name + :rtype: array of $class_name + + Return the query results as an array of the specified class. + + .. method:: custom_row_object($n, $type) + + :param int $n: Index of the results row to return + :param string $class_name: Class name for the results + :returns: Object of type $type + :rtype: $type + + Return a specific row from the query results as an object of + the specified class. + + .. method:: data_seek([$n = 0]) + + :param int $n: Index of the results row to be returned next + :returns: TRUE on success, FALSE otherwise + :rtype: bool + + Moves the internal results row pointer to the desired offset. + Usage: see `Result Helper Methods`_. + + .. method:: field_data() + + :returns: Array of objects containing field meta-data. + :rtype: array + + Generates an array of objects containing field meta-data. + + .. method:: first_row([$type = 'object']) + + :param string $type: Type of result requested - array, object, or class name + :returns: First row of result set + :rtype: mixed + + Returns the "first" row, as an array, generic object, or + object of a specific class + + .. method:: free_result() + + :rtype: void + + Free the result. + Usage: see `Result Helper Methods`_. + + .. method:: last_row([$type = 'object']) + + :param string $type: Type of result requested - array, object, or class name + :returns: Last row of result set + :rtype: mixed + + Returns the "last" row, as an array, generic object, or + object of a specific class + + .. method:: list_fields() + + :returns: Array of column names + :rtype: array + + Fetch Field Names + + .. method:: next_row([$type = 'object']) + + :param string $type: Type of result requested - array, object, or class name + :returns: "Next" row of result set, NULL if there isn't one + :rtype: mixed + + Returns the "next" row, as an array, generic object, or + object of a specific class + + .. method:: num_fields() + + :returns: Number of fields in the result set + :rtype: integer + + Number of fields in the result set. + Usage: see `Result Helper Methods`_. + + .. method:: num_rows() + + :returns: Number of rows in the result set + :rtype: integer + + Number of rows in the result set. + Usage: see `Result Helper Methods`_. + + .. method:: previous_row([$type = 'object']) + + :param string $type: Type of result requested - array, object, or class name + :returns: "Previous" row of result set, NULL if there isn't one + :rtype: mixed + + Returns the "previous" row, as an array, generic object, or + object of a specific class + + .. method:: result([$type = 'object']) + + :param string $type: Type of result requested - array, object, or class name + :returns: Query results as the specified type + :rtype: mixed + + Query result. Acts as a wrapper function for the result_array, + result_object and custom_result_object methods. + Usage: see `Result Arrays`_. + + .. method:: result_array() + + :returns: Query results as an associative array + :rtype: array + + Returns the query results as an array of rows, where each + row is itself an associative array. + Usage: see `Result Arrays`_. + + .. method:: result_object() + + :returns: Query results as an array of objects + :rtype: array + + Returns the query results as an array of rows, where each + row is an object + + .. method:: row([$n = 0[, $type = 'object']]) + + :param integer $n: Index of the query results row to be returned + :param string $type: Type of result requested - array, object, or class name + :returns: Requested row of result set + :rtype: mixed + + Wrapper for result_row_array, result_row_object, and + custom_row_object. + Usage: see `Result Rows`_. + + .. method:: row_array([$n = 0]) + + :param integer $n: Index of the query results row to be returned + :returns: Requested row of result set + :rtype: array + + Returns requested result row as an associative array. + Usage: see `Result Rows`_. + + .. method:: row_object([$n = 0]) + + :param integer $n: Index of the query results row to be returned + :returns: Requested row of result set + :rtype: object + + Returns requested result row as an object + + .. method:: set_row($key[, $value = NULL]) + + :param mixed $key: Column index or array of key/value pairs + :param mixed $value: Result to assign to a column if the key is an index + :rtype: void + + Assigns an item into a particular column slot + + .. method:: unbuffered_row([$type = 'object']) + + :param string $type: Type of result requested - array, object, or class name + :returns: Requested row of result set + :rtype: mixed + + Fetches the next result row and returns it in the requested + form. + Usage: see `Result Rows`_.
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