We are populating a subregion of a page with an Iframe (call to another page) with data for a questionnaire.
We have PAGE ITEM variables (:P37_... populated by query) that contain table values for P37_QUESTION_DESCRIPTION and P37_RESPONSE_TYPE.
The sub page used in the region (:P28_...) assigns report attributes for each column... where We populated the question text in the P28_QUESTION_DESC and a Y/N Select List defined list of values in the P28_RESPONSE_DESC_DISPLAY column. This works fine.
Now, the P37_RESPONSE_TYPE can more than just this Y/N Select List. It could be TEXTAREA, PICKLIST, DATE...
How can we define the :P28_RESPONSE_DESC_DISPLAY column dynamically to be any number of user input field types (based on the value in :P37_REPSONSE_TYPE?)
This was solved by using a non-tabular form report generated by query using apex.item functions. But is has left me with another problem. Here's the query:
select
apex_item.hidden(31,CASE_QUEST_DTL_ID) CASE_QUEST_DTL_ID,
apex_item.hidden(32,CASE_MGMT_BASE_ID) CASE_MGMT_BASE_ID,
apex_item.display_and_save(33,to_number(question_seq_no)) QUESTION_SEQ_NO,
apex_item.display_and_save(34,question_desc) QUESTION_DESC,
case when response_type = 'PICKLIST-YESNO' then apex_item.select_list_from_lov(35,response_desc,'YES_NO_SELECTLIST',NULL,'NO')
when response_type = 'TEXTFIELD' then apex_item.text(35,response_desc)
when response_type = 'TEXTAREA' then apex_item.textarea(35,response_desc,5,40)
when response_type = 'DATEPICKER' then APEX_ITEM.DATE_POPUP2(35,to_date(response_desc,'dd-mon-yyyy'),'dd-mon-yyyy')
end RESPONSE_DESC
from V_CASE_QUEST_LINK
where question_set_code like 'COB_Q%'
and case_mgmt_base_id = :P37_CASE_MGMT_BASE_ID
My problem is now grouping the questions by question_set_code. Because GROUP BY is evaluated after the select, it cannot simply be tacked on to the end of the query. I'm not sure that using a nested select will work here because of the apex.item calls. Anyone have a suggestion on how I can group these questions by the column?
Related
I have a table ORDERS which contains column ORDER_DATE. I have created a Chart as a Bar type.
Right now, the chart returns all the orders because I did not specify a Maximum Rows. The date on the x-axis and the number of orders on the y-axis.
How can I add a form for the user to select a range of dates and return only the values for those dates?
Example:
Doesn't necessarily have to be a calendar. A dropdown is fine as well. Or even a 'text' input since that is the easiest way.. I just need to know how to go about creating this feature. Your help is appreciated. Thank you.
First create a page item as date picker or some other plugin you already have to let users select a date or date range. (make sure that when user selects a date, the page item value is set by using a dynamic action or by a setting that your plugin has (set item value after selection kind of setting) )
Then create a new view with the source of your ORDERS table but it should have a where statement as it filters records by your page item such as:
select count(1)
from ORDERS
where order_date between :P1_DATE_FROM and :P1_DATE_TO
Set the source of the chart to this new view.
After user sets a value, refresh the chart by a dynamic action if it is not refreshed automatically.
In summary, the idea is to make your chart's source filtered by page items that users can change. Then refreshing the chart so that the new page item values are effective.
I am using APEX 21.1. I have a checkbox group whose list of values is retrieved using a query...
select disease, id from history;
The query returns many checkboxes. I have another textarea item. I need to get the display value for any checkbox whenever it's checked and set item HISTORY to that value. How to do so?
Describing a how-to would be so much easier if you had provided some example page item names and example data. So, lets call your checkbox group P10_CHECKBOX and your textarea P10_TEXT.
Usually, your checkbox group will save the item ids as a colon seperated list, like this: 3:4:5
To display the corresponding display values, make a dynamic action on change on your item P10_CHECKBOX.
Then, use an action of type Execute PL/SQL Code to fetch the display values of your items.
The code could look like this:
select listagg(disease,chr(10)) within group (order by disease) into :P10_TEXT
from history h
join table(apex_string.split_numbers(:P10_CHECKBOX,':')) t on (h.id = t.column_value);
apex_string.split_numbers will convert your colon list into an actual "table" with the column column_value you can use in the join clause. listagg will do the actual concatenation and will work up to a couple thousand characters. chr(10) is an ordinary line break and will have your items be shown line by line, but any other seperator will do.
Last step is to set up P10_CHECKBOX in your Items to submit and P10_TEXT in your Items to return.
Now, whenever you click a checkbox, the textarea will be updated immediately.
I'm making a Microsoft Access table where one of the fields is a list of pre-made options. When I make a SQL query on that table it returns the values of the list as strings containing the spelled out choice. I would like to assign numerical values to each element of the list so a SQL query returns a number instead. How do I do this? I know it's possible because I have an access file with such a list but I'm unable to recreate it.
An easy way to do this is to have your combo box use a query of the table as a Rowsource. This query would have the table unique ID in the first field and the field you wish to return as the second field. Then change the setting on the combo box for "Column Count" to 2. If you want to show both fields change the "Column Widths" value to 1"; 1". If you want to show only one field, change the value of one you do not want to see to 0. Now we you refer to this list in an SQL queries, it will use the ID field but show the user the string field.
I use plugin Select2 on Apex.
I have scenario like this:
I have three tables: ROOM, MASTER_STUDENT and MAP_STUDENT_ROOM
One ROOM can have many STUDENT
User can select more than one student(with Select2 from MASTER_STUDENT) when create ROOM
When user edit ROOM, previously selected student show in Select2 item(selected item by MAP_STUDENT_ROOM), so user can remove or add more Student
How to achieve point number 4, item Select2 list of values is MASTER_STUDENT but with default selected by MAP_STUDENT_ROOM?
I found this documentation, but i dont know how to apply it.
I'm not familiar with the Select2 plug-in.
Have you considered using the built-in Popup LOV, which since APEX 19.1 now allows multiple selection.
Whether you're using the Select2 plug-in or the built-in Popup LOV, the issue will be the same. You have a form on ROOM, that's trying to take into account an item that isn't part of the ROOM table (its values are stored in MAP_STUDENT_ROOM). The trick is to populate the item correctly during page load so that the item can correctly display the currently assigned students.
How is the item's Source configured? If it's not, set Type to SQL Query (return colon separated value). Assuming you have a primary key item on the page for the room (e.g. P1_ID), enter a query like the following:
select student_id
from MAP_STUDENT_ROOM
where room_id = :P1_ID
Then set Used to Always, replacing any existing value in session state.
This should get the item to display correctly when the page loads. However, you'll still have to figure out how to map the values back to the MAP_STUDENT_ROOM table correctly when the page is submitted. You'll need to add some logic that first deletes rows from the room (P1_ID) that are not in the selection (e.g. P1_ASSIGNED_STUDENTS). You can use APEX_STRING.SPLIT_NUMBERS to help:
delete from map_student_room
where room_id = :P1_ID
and student_id not in (
select column_value
from apex_string.split_number(:P1_ASSIGNED_STUDENTS, ':')
)
Then you can insert rows that are in the selection but not already in the room.
insert into map_student_room (
room_id,
student_id
)
select :P1_ID,
column_value
from apex_string.split_number(:P1_ASSIGNED_STUDENTS, ':')
where column_value not in (
select student_id
from map_student_room
where room_id = :P1_ID
)
I've not tested any of this code, but it should get the points across.
Another option would be to use an Interactive Grid instead of a list of values item. This is a classic master/detail scenario where students could be added and removed below the form region (typically only done after create).
Am building an application with oracle apex 5 where i want the user to chose multiple parameters and returning an interactive report based on the parameters selected by the user.
One of the parameters is a list manager item where the user select multiple values to be passed to an SQL query.
my problem is how to pass those values to the sql query, the item type is list manager and the name is P2_OPTIONS how do i pass the parameters to the SQL query generating the report.
Selected values storing in P2_OPTIONS divided by colon, for example 2:7:17.
So, you can insert this string into your query, preliminary replacing colon to comma and get expression like
...
and parameter0 in (2,7,17)
...
OR
you can parse this string into apex collection and join this collection in you query
...and apex_collections.collection_name = 'P2_OPTIONS_PARSED'
and parameter0 = apex_collections.c001
...