Hi, I'd like to rewrite a url like this:
/manufacturer/product
e.g.
LiftRules.statelessRewrite.append( {
case RewriteRequest(
ParsePath( manufacturerName :: productName :: Nil, _, _,_), _,
_) =>
RewriteResponse("productView" :: Nil)
})
But, I'd like to the ParsePath case to not 'catch' for non-existant
manufacturers, and non-existant products by the manufacturer.
So, I might do this:
LiftRules.statelessRewrite.append( {
case RewriteRequest(
ParsePath( Manufacturer(manufacturer) :: Product(product) ::
Nil, _, _,_), _, _) =>
RewriteResponse("productView" :: Nil)
})
Where Manufacturer and Product objects provide an extractor which does
a lookup.
However, the product lookup depends on the manufacturer.. is there a
way to handle that?
ideas:
1. use an if guard
case RewriteRequest(
ParsePath( Manufacturer(manufacturer) :: productName :: Nil,
_, _,_), _, _) if manufacturer.contains(productName) =>
val product = manufacturer.getProduct(productName)
sucks because it looks up the product twice.
2. some time of nested case?
case RewriteRequest(
ParsePath( Manufacturer(manufacturer) :: Product(manufacturer,
product) :: Nil, _, _,_), _, _) =>
obviously doesn't work..
any suggestions welcome, thanks!
- Alex
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