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annotate sql.urs @ 8:ec4de8f848f8
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| author | Adam Chlipala <adam@chlipala.net> |
|---|---|
| date | Tue, 14 Dec 2010 10:54:26 -0500 |
| parents | 799f43bce62b |
| children | d05943db55e8 |
| rev | line source |
|---|---|
| adam@6 | 1 (** Common metaprogramming patterns for SQL syntax construction *) |
| adam@6 | 2 |
| adam@6 | 3 val sqexps : env ::: {{Type}} -> fields ::: {Type} -> folder fields -> $(map sql_injectable fields) |
| adam@6 | 4 -> $fields -> $(map (sql_exp env [] []) fields) |
| adam@6 | 5 (* Convert a record of Ur values into a record of SQL expressions *) |
| adam@6 | 6 |
| adam@6 | 7 val selector : tn :: Name -> fs ::: {Type} -> ofs ::: {Type} -> [fs ~ ofs] |
| adam@6 | 8 => folder fs -> $(map sql_injectable fs) -> $fs |
| adam@6 | 9 -> sql_exp [tn = ofs ++ fs] [] [] bool |
| adam@6 | 10 (* Build a boolean SQL expression expressing equality of some fields of a table |
| adam@6 | 11 * row with a record of Ur values *) |