Referencing Records Across Multiple Tables in XML

Question

Post Author: rltimms
CA Forum: Formula
Here is my problem.
I need to create a report that references data from 3 tables.  These 3 tables are linked through the use of two other tables.  The main tables I need to reference are entitled Station, Task, and Resource.  The Station table is linked to Task through a TaskStationMapping Table.  The Resource table is linked to Task through a TaskResourceMapping table.
Here is how I would like the output to look.
Station ID: S1 (L)
Processes
Required Resources
Operator
ID
Description
Net Time
Take Rate
Weighted Time
Work Zone
Models
ID
Quantity
1
6R-0000000003
Install the center support retaining ring onto compressor tool with the bevel facing up.
10.0000
0.3000
3.0000
E
2
Brush - 1" Paint Brush (for loctite)
1
1
6R-0000000004
Get gauge.
10.0000
0.3000
3.0000
E
2
1
6R-0000000011
For 2-W/D models, visually verify the output shaft bearings have been installed.
10.0000
1.0000
10.0000
E
The problem comes when I try to include the resource fields in my report.  Aside from the 2 fields on the far right, everything else comes from the task table.  I get this to display correctly for each station by creating a group using the ID from the Station table.  I then use a group select formula that Checks the Station.ID against the StationID from the TaskStationMapping table.  In order to get the fields from the task table to appear correctly I also have to include a formula that relates the ID from the Task Table and the TaskID from the TaskStationMapping table.
Without those selection formulas I end up with just a list of all tasks, even tasks which arent mapped to the station for which that particular group has been created.
Since the resources are mapped to the task, and not to the station, any type of selection statement I use to select from the resource table will affect my selections from the task table.  For example, if I select more specifically for the resources, not all tasks are displayed, only those mapped to resources, so from the above example, only the first line of the report would be shown.  I am new to using Crystal Reports, and I have no idea how to solve this problem.  I dont know if I am missing something in the Grouping stage that would make it so I dont have to use the group and record select functions, or if there is some other way to solve this problem.  Any help would be appreciated.

Answer 1

Hi
I am assuming that this is an offline form.
First populate internal tables depending on the data you need on each page. Sort the table according to the PERNR.
You can read the internal tables using Javascript -
var varname1 = xfa.resolveNodes("xfa.record.ITAB.DATA[*]");
Add the fields as per the first name - Name, last name etc and populate these fields with the first record from the first internal table. Store the PERNR value in a separate variable (say pernr1).
Now you can querry the second internal table with this pernr, pick up the corresponding record and fill in the 2nd set of fields.
for( var i = 0; i < varname1.length ; i++)
    if ( varname1.item(i).PERNR.value == pernr1 )
Hope this is a good starting point for you.
Thks, Liz