F# 如何使用Suave在一个页面上处理多个表单
我必须创建具有多个表单的简单页面。为此,我决定使用Suave.Experiative。当我点击第二个表单上的F# 如何使用Suave在一个页面上处理多个表单,f#,suave,F#,Suave,我必须创建具有多个表单的简单页面。为此,我决定使用Suave.Experiative。当我点击第二个表单上的submit按钮时,我得到以下错误 缺少表单字段“Second” 网页部件 let webpart = choose [ GET >=> OK page POST >=> bindToForm firstForm firstHandle POST >=> bindToForm secondForm
submit
按钮时,我得到以下错误
缺少表单字段“Second”
网页部件
let webpart =
choose [
GET >=> OK page
POST >=> bindToForm firstForm firstHandle
POST >=> bindToForm secondForm secondHandle
]
有没有可能用Suave.experiative有多种形式?
如果是的话,我在这里错过了什么
如果没有-什么是合适的方法
最简单的例子如下:
open Suave.Form
open Suave.Html
type FirstForm = { First : string }
type SecondForm = { Second : decimal }
let firstForm : Form<FirstForm> =
Form ([ TextProp ((fun f -> <@ f.First @>), [ ])],[])
let secondForm : Form<SecondForm> =
Form ([ DecimalProp ((fun f -> <@ f.Second @>), [])], [])
type Field<'a> = {
Label : string
Html : Form<'a> -> Suave.Html.Node
}
type Fieldset<'a> = {
Legend : string
Fields : Field<'a> list
}
type FormLayout<'a> = {
Fieldsets : Fieldset<'a> list
SubmitText : string
Form : Form<'a>
}
let form x = tag "form" ["method", "POST"] x
let submitInput value = input ["type", "submit"; "value", value]
let renderForm (layout : FormLayout<_>) =
form [
for set in layout.Fieldsets ->
tag "fieldset" [] [
yield tag "legend" [] [Text set.Legend]
for field in set.Fields do
yield div ["class", "editor-label"] [
Text field.Label
]
yield div ["class", "editor-field"] [
field.Html layout.Form
]
]
yield submitInput layout.SubmitText
]
open Suave
open Suave.Filters
open Suave.Operators
open Suave.Successful
open Suave.Web
open Suave.Model.Binding
open Suave.RequestErrors
let bindToForm form handler =
bindReq (bindForm form) handler BAD_REQUEST
let firstHandle first =
printfn "first = %A" first
Redirection.FOUND "/"
let secondHandle second =
printfn "second = %A" second
Redirection.FOUND "/"
let page =
html [] [
head [] [ ]
body [] [
div [][
renderForm
{ Form = firstForm
Fieldsets =
[ { Legend = "1"
Fields =
[ { Label = "Text"
Html = Form.input (fun f -> <@ f.First @>) [] }
] }]
SubmitText = "Submit" }
renderForm
{ Form = secondForm
Fieldsets =
[ { Legend = "2"
Fields =
[ { Label = "Decimal"
Html = Form.input (fun f -> <@ f.Second @>) [] }
] }]
SubmitText = "Submit" }
]
]
]
|> htmlToString
let webpart =
choose [
GET >=> OK page
POST >=> bindToForm firstForm firstHandle
POST >=> bindToForm secondForm secondHandle
]
startWebServer defaultConfig webpart
打开Suave.Form
打开Suave.Html
类型FirstForm={First:string}
键入SecondForm={Second:decimal}
让firstForm:Form=
表格([TextProp((fun f->),[])],[])
让第二个表单:表单=
表格([DecimalProp((fun f->),[]),[]))
类型字段->Suave.Html.Node
}
类型字段集列表
}
类型表单布局列表
SubmitText:string
Form:Form您正在将相同的路由“POST/”路由到两个表单处理程序。每个路由应该只有一个路由,否则只能执行其中一个路由
您可以为每个表单设置不同的表单操作,并相应地为这些表单创建路径
我很快对您的代码进行了以下更改,现在应该可以使用了:
open Suave.Form
open Suave.Html
type FirstForm = { First : string }
type SecondForm = { Second : decimal }
let firstForm : Form<FirstForm> =
Form ([ TextProp ((fun f -> <@ f.First @>), [ ])],[])
let secondForm : Form<SecondForm> =
Form ([ DecimalProp ((fun f -> <@ f.Second @>), [])], [])
type Field<'a> = {
Label : string
Html : Form<'a> -> Suave.Html.Node
}
type Fieldset<'a> = {
Legend : string
Fields : Field<'a> list
}
type FormLayout<'a> = {
Fieldsets : Fieldset<'a> list
SubmitText : string
Form : Form<'a>
}
let form action x = tag "form" ["method", "POST"; "action", action] x
let submitInput value = input ["type", "submit"; "value", value]
let renderForm action (layout : FormLayout<_>) =
form action [
for set in layout.Fieldsets ->
tag "fieldset" [] [
yield tag "legend" [] [Text set.Legend]
for field in set.Fields do
yield div ["class", "editor-label"] [
Text field.Label
]
yield div ["class", "editor-field"] [
field.Html layout.Form
]
]
yield submitInput layout.SubmitText
]
open Suave
open Suave.Filters
open Suave.Operators
open Suave.Successful
open Suave.Web
open Suave.Model.Binding
open Suave.RequestErrors
let bindToForm form handler =
bindReq (bindForm form) handler BAD_REQUEST
let firstHandle first =
printfn "first = %A" first
Redirection.FOUND "/"
let secondHandle second =
printfn "second = %A" second
Redirection.FOUND "/"
let page =
html [] [
head [] [ ]
body [] [
div [][
renderForm "first"
{ Form = firstForm
Fieldsets =
[ { Legend = "1"
Fields =
[ { Label = "Text"
Html = Form.input (fun f -> <@ f.First @>) [] }
] }]
SubmitText = "Submit" }
renderForm "second"
{ Form = secondForm
Fieldsets =
[ { Legend = "2"
Fields =
[ { Label = "Decimal"
Html = Form.input (fun f -> <@ f.Second @>) [] }
] }]
SubmitText = "Submit" }
]
]
]
|> htmlToString
let webpart =
choose [
GET >=> OK page
POST >=> choose
[ path "/first" >=> (bindToForm firstForm firstHandle)
path "/second" >=> (bindToForm secondForm secondHandle) ]
]
startWebServer defaultConfig webpart
打开Suave.Form
打开Suave.Html
类型FirstForm={First:string}
键入SecondForm={Second:decimal}
让firstForm:Form=
表格([TextProp((fun f->),[])],[])
让第二个表单:表单=
表格([DecimalProp((fun f->),[]),[]))
类型字段->Suave.Html.Node
}
类型字段集列表
}
类型表单布局列表
SubmitText:string
表格:表格