Moduleselda-0.5.2.1Haskell2010

Database.Selda.Debug

Functionality for inspecting and debugging Selda queries.

1 type
6 values

Packageselda-0.5.2.1
Exports7
LanguageHaskell2010
LicenceMIT
SourceDebug.hs

datadata OnError

Fail Ignore

Instances3Eq, Ord, Show

Eq OnErrorDefined in selda-0.5.2.1 · Database.Selda.Table.Compile
Ord OnErrorDefined in selda-0.5.2.1 · Database.Selda.Table.Compile
Show OnErrorDefined in selda-0.5.2.1 · Database.Selda.Table.Compile

valuedefPPConfig :: PPConfig

Default settings for pretty-printing. Geared towards SQLite.

The default definition of ppTypePK is 'defType, so that you don’t have to do anything special if you don’t use special types for primary keys.

valuecompile :: Result a => Query s a -> (Text, [Param])

Compile a query into a parameterised SQL statement.

The types given are tailored for SQLite. To translate SQLite types into whichever types are used by your backend, use compileWith.

valuecompileCreateTable :: PPConfig -> OnError -> Table a -> Text

Compile a sequence of queries to create the given table, including indexes. The first query in the sequence is always CREATE TABLE.

valuecompileDropTable :: OnError -> Table a -> Text

Compile a DROP TABLE query.

valuecompileInsert

:: Relational a
=> PPConfig
-> Table a
-> [a]
-> [(Text, [Param])]

Compile an INSERT query, given the keyword representing default values in the target SQL dialect, a table and a list of items corresponding to the table.

valuecompileUpdate

:: (Relational a, SqlRow a)
=> PPConfig
-> Table a
Table to update.
-> (Row s a -> Row s a)
Update function.
-> (Row s a -> Col s Bool)
Predicate.
-> (Text, [Param])

Compile an UPDATE query.