Apex Tabular report validation

Question

This is the revised version. I need a validation on tabular form field. There is no error with the validation but it is not working as expected. I need to look for the row data change and based on the selection need to check the project type and based on it raise the error if the selection is not correct.
declare
v_project_type varchar2(1);
v_error VARCHAR2 (4000);
begin
for i in 1 .. apex_application.g_f04.Count
loop
if apex_application.g_f01(i) IS NOT NULL -- CHECKSUM FIELD
AND wwv_flow_item.md5(apex_application.g_f05(i) -- ENAME
) <> apex_application.g_f01(i)
then
select project_type
into v_project_type
from pm_project
where project_id = apex_application.g_f04('PROJECT_ID',i);
-- now check valid task IDs for this project type
if v_project_type = 'C' then
if apex_application.g_f05.V('TASK_ID',i) not in
('E3','E4','E6','P4','P5','P6','P7','P8') then
v_error :=
v_error
|| '</br>'
|| 'Invalid task for capital project '
|| apex_application.g_f05(i)
|| '.';
end if; -- task ids for C
elsif v_project_type = 'E' then
if apex_application.g_f05.V('TASK_ID',i) not in
('E3','E4','E6') then
v_error :=
v_error
|| '</br>'
|| 'Invalid task for Expense project '
|| apex_application.g_f05(i)
|| '.';
end if; -- task ids for E
elsif v_project_type = 'R' then
if apex_application.g_f05.V('TASK_ID',i) not in
('E1','E2','E5','E7') then
v_error :=
v_error
|| '</br>'
|| 'Invalid task for RTS project '
|| apex_application.g_f05(i)
|| '.';
end if; -- task ids for R
end if; -- project type
end if;
end loop;
RETURN v_error;
end;
Edited by: user9108344 on Jun 13, 2011 1:17 PM
Edited by: user9108344 on Jun 13, 2011 1:19 PM

Answer 1

Version : Apex 4.0.
I have tasks for the projects in one table and project type in an other table. I am trying to create a validation if some task is selected against the project based on the selection made my validation should check what type of project type associated with that project based on project id in that row. If the project type is 'C' then it should allow me to choose only the tasks associated with the 'C' type project which are ('E3','E4','E6','P4','P5','P6','P7','P8') else if it is 'R; there is different set it should allow me to save along with the project_id.
declare
v_project_type varchar2(1);
v_error VARCHAR2 (4000);
begin
-- Need to check if the task id row has changed against projectid row
for i in 1 .. apex_application.g_f04.Count
loop
if apex_application.g_f01(i) IS NOT NULL -- CHECKSUM FIELD
AND wwv_flow_item.md5(apex_application.g_f05(i) -- ENAME
) <> apex_application.g_f01(i)
then
-- If the row has changed then look for project type for that project id from the table
select project_type
into v_project_type
from pm_project
where project_id = apex_application.g_f04('PROJECT_ID',i);
-- now check valid task IDs for this project type
if v_project_type = 'C' then
-- if project type is C then task id has to be in the string below.
if apex_application.g_f05('TASK_ID',i) not in
('E3','E4','E6','P4','P5','P6','P7','P8') then
v_error :=
v_error
|| '</br>'
|| 'Invalid task for capital project '
|| apex_application.g_f05(i)
|| '.';
end if; -- task ids for C
elsif v_project_type = 'E' then
-- if project type is E then task id has to be in the string below.
if apex_application.g_f05('TASK_ID',i) not in
('E3','E4','E6') then
v_error :=
v_error
|| '</br>'
|| 'Invalid task for Expense project '
|| apex_application.g_f05(i)
|| '.';
end if; -- task ids for E
elsif v_project_type = 'R' then
-- if project type is R then task id has to be in the string below.
if apex_application.g_f05('TASK_ID',i) not in
('E1','E2','E5','E7') then
v_error :=
v_error
|| '</br>'
|| 'Invalid task for RTS project '
|| apex_application.g_f05(i)
|| '.';
end if; -- task ids for R
end if; -- project type
end if;
end loop;
RETURN v_error;
end;
--if not in those string it has to throw error. Please let me know if you are still looking for more information.  This above validation is not throwing any error neither performing anything. I am not sure where i am wrong with the code.
Thanks