Copyright | (c) 2011 MailRank Inc. |
---|---|
License | BSD3 |
Maintainer | Paul Rouse <pyr@doynton.org> |
Stability | experimental |
Portability | portable |
Safe Haskell | None |
Language | Haskell98 |
Database.MySQL.Simple.Param
Description
The Param
typeclass, for rendering a parameter to a SQL query.
Documentation
How to render an element when substituting it into a query.
Constructors
Plain Builder | Render without escaping or quoting. Use for non-text types
such as numbers, when you are certain that they will not
introduce formatting vulnerabilities via use of characters such
as spaces or " |
Escape ByteString | Escape and enclose in quotes before substituting. Use for all text-like types, and anything else that may contain unsafe characters when rendered. |
Many [Action] | Concatenate a series of rendering actions. |
A type that may be used as a single parameter to a SQL query.
Minimal complete definition
Instances
Param Bool # | |
Param Double # | |
Param Float # | |
Param Int # | |
Param Int8 # | |
Param Int16 # | |
Param Int32 # | |
Param Int64 # | |
Param Integer # | |
Param Word # | |
Param Word8 # | |
Param Word16 # | |
Param Word32 # | |
Param Word64 # | |
Param ByteString # | |
Param ByteString # | |
Param Text # | |
Param Text # | |
Param TimeOfDay # | |
Param UTCTime # | |
Param Day # | |
Param Null # | |
Param Action # | |
Param [Char] # | |
Param a => Param (Maybe a) # | |
Param (Binary ByteString) # | |
Param (Binary ByteString) # | |
Param a => Param (VaArgs [a]) # | |
Param a => Param (In [a]) # | |