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View Code? Open in Web Editor NEWPostgreSQL Bindings for Idris2
License: BSD 3-Clause "New" or "Revised" License
PostgreSQL Bindings for Idris2
License: BSD 3-Clause "New" or "Revised" License
I have to admit, I was not able to figure out how to write a function that
can get the columns from the Table data structure at compile time.
I.e. a function with the following definition:
getT : HasIO io
=> MonadError SQLError io
=> Connection
-> (t : Table)
-> {auto 0 _ : Elems cs (columns t)}
-> (query : Op)
-> io (List $ GetRow cs)
where the list of columns would be calculated from the Table object, so for example
rows <- get c User (columns User) (Name /= "Eleni" && Age >= 33)
would be just
rows <- getT c User (Name /= "Eleni" && Age >= 33)
What I could not figure out is how to pass the proof that (columns t) is a subset of (columns t)
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