A sticky problem updating fields on a tabular form

Question

I have an application where I'm trying to match skillset supply to skillset demand. We have resources and we have work for resources to do. Resources possess a set of skills. Work requires a set of skills. Skillsets are described by three fields: Domain, Target, Skill. So, we are able to capture the supply of skills in a table:
RSRC_ID (FK to Resource table)
DOMAIN
TARGET
SKILL
PROFICIENCY  (this is the skill level 1 to 5)The relationship of resources to skill supply is 1 to many. Conversely, work demands skills, and so we capture skill demand in a table:
WORK_ID (FK to Work table)
DOMAIN
TARGET
SKILLThe relationship of work to skill demand is 1 to many also.
Users assign skills to resources using a master-detail form. It works fine
Users assign skills needed to work also using a master-detail form, and it works fine as well
A view then joins the skillset supply to skillset demand so that assignments can be made only where supply and demand match. This view is used in the LOV below.
The problem I have is that I am using a mapping table to capture assignments of work to resources or resources to work. It is a many to many mapping of work and resources with matching skillsets, and it looks like this:
RSRC_ID  
WORK_ID
DOMAIN   (
TARGET   ( These are the skillsets where demand equals supply and are derived from the view and presented in the LOV )
SKILL      (I've created master-detail forms for the two types of assignments. An LOV in the detail form will present qualified resources or eligible work and then return the appropriate RSRC_ID or WORK_ID, but I must also populate the other three fields (DOMAIN, TARGET and SKILL) before I can insert or update the record. Here's the LOV from the form where resources are assigned to work:
SELECT sed.domain||'.'||
       sed.target||'.'||
       sed.skill||'/'||
       sed.skill_prof||'  '||
       r.first_name||' '||
       r.last_name "d",
       r.rsrc_id "r"
FROM   ri_resource r, ri_skill_supply_eq_demand sed
WHERE  r.rsrc_id = sed.rsrc_id
AND    sed.work_id = :P18_WORK_ID
order by 1It is not enough to just match the work to the resource, we must record for what skillset they are matched. I can't seem to see an easy way to populate the three other fields in the tabular form using data that I can retrieve with the LOV.
I am using APEX 4.1. Any help is appreciated.

Answer 1

Hi Dan,
Please could you replicate your problem on apex.oracle.com and share some developer credentials with us? It will be easier to demonstrate how this would be achievable.
For this specific problem, you will need to re-create all your relevant DB objects and populate them with some sample data.
Kind Regards, Pete