Custom Fast formula for Time Entry Rule in OTL

Question

Hi,
i have created custom validation for time entry rules. I need to validate where Project and task fields are null or not? If Yes, it has to fire the custom message that i have mentioned in function. Please check the below code and help me whether i am on right path:
CREATE OR REPLACE FUNCTION NON_pto_against_projects (
p_time_category_id NUMBER,
p_person_id NUMBER
RETURN VARCHAR2
IS
--Variables used for retrieving timecard id and ovn
l_db_pre_period_start DATE;
l_db_pre_period_stop DATE;
l_time_building_block_id hxc_time_building_blocks.time_building_block_id%TYPE;
l_object_version_number hxc_time_building_blocks.object_version_number%TYPE;
--Variables used for loading timecard tables
l_time_building_blocks hxc_self_service_time_deposit.timecard_info;
l_time_app_attributes hxc_self_service_time_deposit.app_attributes_info;
l_attributes hxc_self_service_time_deposit.building_block_attribute_info;
--Variables used for getting exploded time details
v_blocks_tab hxc_block_table_type;
v_attr_tab hxc_attribute_table_type;
l_messages_tab hxc_message_table_type;
l_detail_blocks hxc_self_service_time_deposit.timecard_info;
l_detail_messages hxc_self_service_time_deposit.message_table;
CURSOR csr_category_elements (p_category_id NUMBER)
IS
SELECT 'ELEMENT - ' || TO_CHAR (value_id) element_type_string
FROM hxc_time_category_comps_v
WHERE time_category_id = p_category_id;
l_cat_elements_string VARCHAR2 (2000);
l_temp VARCHAR2 (1000); --Trace message
l_success_flag CHAR (1); --Return values
BEGIN
--Initialize variables
l_success_flag := 'S';
l_time_building_blocks := hxc_self_service_time_deposit.get_building_blocks;
l_attributes := hxc_self_service_time_deposit.get_block_attributes;
v_blocks_tab :=
hxc_deposit_wrapper_utilities.blocks_to_array (l_time_building_blocks);
v_attr_tab :=
hxc_deposit_wrapper_utilities.attributes_to_array (l_attributes);
IF v_blocks_tab.FIRST IS NOT NULL
THEN
Take each ELEMENT type attribute, and search whether PROJECTS type attribute exists for the SAME BLOCK-START
FOR index1 IN v_attr_tab.FIRST .. v_attr_tab.LAST
LOOP
IF v_attr_tab (index1).attribute_category = 'ELEMENT - %'
THEN --Element attr
FOR element_rec IN csr_category_elements (p_time_category_id)
LOOP
If Element Attribute matches any of the NON-TOP elements in the Time Category-START
IF v_attr_tab (index1).attribute_category =
element_rec.element_type_string
THEN
Check PROJECTS Attributes project and task belonging to ELEMENT attribute's owner block-START
l_success_flag := 'E';
FOR index2 IN v_attr_tab.FIRST .. v_attr_tab.LAST
LOOP
IF v_attr_tab (index2).attribute_category LIKE
'PROJECT - %'
AND v_attr_tab (index2).building_block_id =
v_attr_tab (index1).building_block_id
AND v_attr_tab (index2).attribute1 IS NOT NULL
AND v_attr_tab (index2).attribute2 IS NOT NULL
THEN
l_success_flag := 'S';
EXIT;
END IF;
END LOOP;
IF l_success_flag = 'E'
THEN
RETURN 'E';
END IF;
Check PROJECTS Attributes project and task belonging to ELEMENT attribute's owner block-END
END IF;
If Element Attribute matches any of the NON-TOP elements in the Time Category-END
END LOOP;
END IF; --Element attr
END LOOP;
Take each ELEMENT type attribute, and search whether PROJECTS type attribute exists for the SAME BLOCK-END
END IF;
RETURN l_success_flag;
EXCEPTION
WHEN OTHERS
THEN
RAISE;
END NON_pto_against_projects;

Answer 1

INPUTS ARE resource_id (number)
, submission_date (text)these inputs are passed in PLSQL Code and some of them in formula context
2. While we define a new context for a time entry rule. How is the data that we enter in the time entry rule passed to the fast formula?See the time Rule entry screen and you will find the parameters window there.