Dynamic Queries

Is there a way to support dynamic queries?

i.e.

Given type Read = SQL<"""Select * from MyTable"""> and let query = ["Id", 5L; "Scope", "Demo"]

Is there a way to intercept Read and “add or update the where clause” instead of having to create a different type for each scenario - type ReadById, type ReadByScope, type ReadByIdAndScope?

I’m work a large number of fields and currently experimenting with how to make the queries with large optional fields a bit dynamic.

Any tips, tricks, workaround?

[piaste]

This is a classic question that comes up when you start using parameterized queries, with a classic answer to go with it.

select *
from MyTable
where
    (@id    is null or @id    = id)
and (@scope is null or @scope = scope)
-- etc.

I haven’t tried it yet, but apparently Rezoom.SQL is smart enough to figure out if you care about nullability or not, so the above query will take in an int option and a string option parameters, becaus it compares them with null. Simply pass in None for every parameter that isn’t used in the query.

[rkosafo]

Tried it and it works as expected. Will push it a bit more through various scenarios. Closing this in favour of #7.