Safe Haskell | None |
---|
This module implements the Heist snaplet without using type classes. It is provided mainly as an example of how snaplets can be written with and without a type class for convenience.
- data Heist b
- heistInit :: FilePath -> SnapletInit b (Heist b)
- heistInit' :: FilePath -> HeistConfig (Handler b b) -> SnapletInit b (Heist b)
- clearHeistCache :: Heist b -> IO ()
- addTemplates :: Snaplet (Heist b) -> ByteString -> Initializer b (Heist b) ()
- addTemplatesAt :: Snaplet (Heist b) -> ByteString -> FilePath -> Initializer b (Heist b) ()
- modifyHeistState :: SnapletLens b (Heist b) -> (HeistState (Handler b b) -> HeistState (Handler b b)) -> Initializer b v ()
- modifyHeistState' :: SnapletLens (Snaplet b) (Heist b) -> (HeistState (Handler b b) -> HeistState (Handler b b)) -> Initializer b v ()
- withHeistState :: SnapletLens b (Heist b) -> (HeistState (Handler b b) -> a) -> Handler b v a
- withHeistState' :: SnapletLens (Snaplet b) (Heist b) -> (HeistState (Handler b b) -> a) -> Handler b v a
- addSplices :: SnapletLens b (Heist b) -> [(Text, SnapletISplice b)] -> Initializer b v ()
- addSplices' :: SnapletLens (Snaplet b) (Heist b) -> [(Text, SnapletISplice b)] -> Initializer b v ()
- addConfig :: Snaplet (Heist b) -> HeistConfig (Handler b b) -> Initializer b v ()
- cRender :: ByteString -> Handler b (Heist b) ()
- cRenderAs :: ByteString -> ByteString -> Handler b (Heist b) ()
- cHeistServe :: Handler b (Heist b) ()
- cHeistServeSingle :: ByteString -> Handler b (Heist b) ()
- render :: ByteString -> Handler b (Heist b) ()
- renderAs :: ByteString -> ByteString -> Handler b (Heist b) ()
- heistServe :: Handler b (Heist b) ()
- heistServeSingle :: ByteString -> Handler b (Heist b) ()
- heistLocal :: SnapletLens b (Heist b) -> (HeistState (Handler b b) -> HeistState (Handler b b)) -> Handler b v a -> Handler b v a
- withSplices :: SnapletLens b (Heist b) -> [(Text, SnapletISplice b)] -> Handler b v a -> Handler b v a
- renderWithSplices :: SnapletLens b (Heist b) -> ByteString -> [(Text, SnapletISplice b)] -> Handler b v ()
- heistLocal' :: SnapletLens (Snaplet b) (Heist b) -> (HeistState (Handler b b) -> HeistState (Handler b b)) -> Handler b v a -> Handler b v a
- withSplices' :: SnapletLens (Snaplet b) (Heist b) -> [(Text, SnapletISplice b)] -> Handler b v a -> Handler b v a
- renderWithSplices' :: SnapletLens (Snaplet b) (Heist b) -> ByteString -> [(Text, SnapletISplice b)] -> Handler b v ()
- type SnapletHeist b m a = HeistT (Handler b b) m a
- type SnapletISplice b = SnapletHeist b (Handler b b) Template
- type SnapletCSplice b = SnapletHeist b IO (DList (Chunk (Handler b b)))
Documentation
The state for the Heist snaplet. To use the Heist snaplet in your app
include this in your application state and use heistInit
to initialize
it. The type parameter b will typically be the base state type for your
application.
:: FilePath | Path to templates |
-> SnapletInit b (Heist b) |
The Initializer
for Heist
. This function is a convenience wrapper
around heistInit'
that uses defaultHeistState and sets up routes for all
the templates.
:: FilePath | Path to templates |
-> HeistConfig (Handler b b) | Initial HeistConfig |
-> SnapletInit b (Heist b) |
A lower level Initializer
for Heist
. This initializer requires you
to specify the initial HeistConfig. It also does not add any routes for
templates, allowing you complete control over which templates get routed.
clearHeistCache :: Heist b -> IO ()Source
Clears data stored by the cache tag. The cache tag automatically reloads its data when the specified TTL expires, but sometimes you may want to trigger a manual reload. This function lets you do that.
:: Snaplet (Heist b) | |
-> ByteString | The url prefix for the template routes |
-> Initializer b (Heist b) () |
Adds templates to the Heist HeistConfig. Other snaplets should use this function to add their own templates. The templates are automatically read from the templates directory in the current snaplet's filesystem root.
:: Snaplet (Heist b) | |
-> ByteString | URL prefix for template routes |
-> FilePath | Path to templates |
-> Initializer b (Heist b) () |
Adds templates to the Heist HeistConfig, and lets you specify where they are found in the filesystem. Note that the path to the template directory is an absolute path. This allows you more flexibility in where your templates are located, but means that you have to explicitly call getSnapletFilePath if you want your snaplet to use templates within its normal directory structure.
modifyHeistState :: SnapletLens b (Heist b) -> (HeistState (Handler b b) -> HeistState (Handler b b)) -> Initializer b v ()Source
modifyHeistState' :: SnapletLens (Snaplet b) (Heist b) -> (HeistState (Handler b b) -> HeistState (Handler b b)) -> Initializer b v ()Source
withHeistState :: SnapletLens b (Heist b) -> (HeistState (Handler b b) -> a) -> Handler b v aSource
withHeistState' :: SnapletLens (Snaplet b) (Heist b) -> (HeistState (Handler b b) -> a) -> Handler b v aSource
addSplices :: SnapletLens b (Heist b) -> [(Text, SnapletISplice b)] -> Initializer b v ()Source
addSplices' :: SnapletLens (Snaplet b) (Heist b) -> [(Text, SnapletISplice b)] -> Initializer b v ()Source
addConfig :: Snaplet (Heist b) -> HeistConfig (Handler b b) -> Initializer b v ()Source
Adds more HeistConfig data using mappend with whatever is currently there. This is the preferred method for adding all four kinds of splices as well as new templates.
:: ByteString | Name of the template |
-> Handler b (Heist b) () |
:: ByteString | Content type |
-> ByteString | Name of the template |
-> Handler b (Heist b) () |
cHeistServe :: Handler b (Heist b) ()Source
cHeistServeSingle :: ByteString -> Handler b (Heist b) ()Source
:: ByteString | Name of the template |
-> Handler b (Heist b) () |
:: ByteString | Content type |
-> ByteString | Name of the template |
-> Handler b (Heist b) () |
heistServe :: Handler b (Heist b) ()Source
heistServeSingle :: ByteString -> Handler b (Heist b) ()Source
heistLocal :: SnapletLens b (Heist b) -> (HeistState (Handler b b) -> HeistState (Handler b b)) -> Handler b v a -> Handler b v aSource
withSplices :: SnapletLens b (Heist b) -> [(Text, SnapletISplice b)] -> Handler b v a -> Handler b v aSource
renderWithSplices :: SnapletLens b (Heist b) -> ByteString -> [(Text, SnapletISplice b)] -> Handler b v ()Source
heistLocal' :: SnapletLens (Snaplet b) (Heist b) -> (HeistState (Handler b b) -> HeistState (Handler b b)) -> Handler b v a -> Handler b v aSource
withSplices' :: SnapletLens (Snaplet b) (Heist b) -> [(Text, SnapletISplice b)] -> Handler b v a -> Handler b v aSource
renderWithSplices' :: SnapletLens (Snaplet b) (Heist b) -> ByteString -> [(Text, SnapletISplice b)] -> Handler b v ()Source
type SnapletHeist b m a = HeistT (Handler b b) m aSource
type SnapletISplice b = SnapletHeist b (Handler b b) TemplateSource
type SnapletCSplice b = SnapletHeist b IO (DList (Chunk (Handler b b)))Source