Hi,
Any hints about how to tackle the following problem greatly appreciated:
given three tables:
*employee*:
id
name
...
*contract*:
id
start_date
fte100
...
*employee_contract:*
id
employee_id
contract_id
An employee can have one or more contracs; they are linked through the
employee_contract table.
I would like to find a query that returns the contract details for the
latest contract for an employee;
i've solved a little step of my puzzle and can retrieve the latest contract
by doing something like this:
employee_id = 10
contr = db( (db.employee.id == employee_id)
& (db.employee_contract.contract_id == db.contract.id)
& (db.employee_contract.employee_id == db.employee.id)
).select(db.employee.ALL, db.contract.start_date.max())
latest_start_date = contr.contract.start_date.max()
but i need also the corresponding contract.fte100 field.
Can this be done by using the DAL, or should i construct a loop to find the
answer?
Best regards,
Jaap
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