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Questions tagged [hamlet]

Hamlet is a type-safe framework for generating HTML code from Haskell

Hamlet is a type-safe tool for generating HTML code in Haskell. It is used in the Yesod web framework .

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Yesod: How to build parameterized routes

I am try to pass a parameter to a route at runtime inside a hamlet template. buildFeedRow :: Item [Attribute Text] -> GWidget a a () buildFeedRow item = do let f = unpackItem item u :: Text = url f [whamlet| …
Steve Severance
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Using Licius + Hamlet + Julius in Servant

I would like to use Shakespearean Templates (Licius + Hamlet + Julius) from the Yesod.But I have some difficulty with this. The following code from enter link description here works: type TestAPI = "tests" :> Get '[JSON] [Test] :<|> "test"…
QSpider
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Call a function inside a hamlet file

I have writen a small language lookup with a function getValue :: String -> String -> String getValue lang key = ( head $ filter ((== key) . head) langData) !! getLangIndex lang now i want to call this lookup function inside a hamlet…
Xlaech
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How to combine "details" from a separate query in a list in Hamlet?

I'd like to display a list of items in a webpage, along with associated details from a separate table (with a many-to-one relationship). How do I do this in Yesod? I am using the default scaffolding. The upshot is that runDB cannot be nested in a…
jpaugh
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Render hamlet template from file

Assuming I have the following shakespeare template code: $doctype 5

This is a test
Value of test variable: #{testVariable} in the file mytemplate.hamlet. How can I render it using shamletFile without…
Uli Köhler
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$if expressions in Hamlet

I have a condition in my Hamlet template that looks like this: $if (&&) (index == 0) (row == 0) which works fine. If I try to re-write this as the more natural $if (index == 0) && (row == 0) or $if ((index == 0) && (row == 0)) then it…
Timwi
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Generation HTML page content in Yesod using Data.Tree

Hi There! Say I have a gigantic multi-node Tree in Haskell where each node contains HTML content of each page. Using Yesod, the user will access a web page with the URL /myPage and the Handler getMyPageR :: Handler Html will be called. What I…
kolam
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hamlet templates and deconstructing data in $forall : why it doesn't bring deconstructed members in scope?

In Yesod, using whamletFile function in a route handler, I have issue deconstructing records in the $forall construct. I have this data record: data Foo a = Foo (a, Int, Int) in hamlet template file, I itterate over an instance of [Foo] and try to…
smoothdeveloper
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How to include one external hamlet file inside another?

My question is quite simple: How can I include one external hamlet file into another external hamlet file? Let's say I have a header or footer that's shared amongst every page, does it have to be 'assembled in haskell' like mentioned here, or can it…
jcristovao
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How does one apply HamletSettings to a quasiquote in Hamlet?

Background: I am studying how Hamlet works, with WAI, but without Yesod. I have no grasp of Template Haskell, but before I dive into it, I am wondering if there is a known/quick solution for this task. Specifics: I would like to know how to change…
jerng
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Use of Hamlet's $case with records and ADTs

It would seem that Hamlet's $case expression should be remarkably useful, but I can't figure out how one would match against an record type with multiple constructors short of pattern matching (with a unique name) each of the fields. Say I have a…
bgamari
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Test if User is Logged in In Hamlet template

I want to test if the user is authenticated and show a "log in" or "log out" link depending on the state. So far I have $maybe muid <- maybeAuthId Logout $nothing Login but I get an…
oh_cripes
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How do I use StaticRoute values in Hamlet?

The TH call $(staticFiles "static") dumps a load of values of type StaticRoute. Hamlet typesafe URLs (i.e. @{...}) take values of type Route Foo, where Foo is my foundation. There must be a way of using the StaticRoute values as URLs in Hamlet. …
jameshfisher
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id property in yesod

In yesod, we can specify the class attribute like so:
==>
Is there an analog for id? For example, something like:
==>
Clark Gaebel
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Trying to send an email in yesod using hamlet

I am building a survey site in Yesod (0.10) and am getting lost in the types. Here is a simplified version on what I am trying to do. invitation url = do render <- getUrlRender return $ renderHtml [hamlet|

Dear foo, please take our

MattoxBeckman
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