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POexist db user registration with xquery
 

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    <p>I'm trying to create a user registration form and create collection upon registration. I tried following code, but when i try to execute i get this error: <strong>HTTP 400 Bad Request</strong> and page cannot be displayed. Here is the code:</p> <pre><code>xquery version "1.0"; declare namespace request="http://exist-db.org/xquery/request"; declare namespace response="http://exist-db.org/xquery/response"; declare namespace xdb="http://exist-db.org/xquery/xmldb"; declare option exist:serialize "method=xhtml media-type=text/html indent=yes"; declare variable $database-uri as xs:string { "xmldb:exist:///db" }; declare variable $redirect-uri as xs:anyURI { xs:anyURI("login.xql") }; declare function local:header() as node(){ &lt;div style="background-color:#b0c4de; padding: 20px; border: 1px solid black;"&gt; &lt;h1&gt;test&lt;/h1&gt; &lt;/div&gt; }; declare function local:footer() as node(){ &lt;div style="background color:#eee; height: 1%; padding:20px; border: 1px solid black;"&gt; &lt;p&gt;PROJECT&lt;/p&gt; &lt;/div&gt; }; declare function local:reg($user as xs: string) as element()? { let $password := request:get-parameter("password", "") let $password2 := request:get-parameter("password2", "") return if (not(xdb:exists-user($user))) then ( xdb:create-collection($database-uri, $user), xdb:create-user($user, $password, "guest", ()), response:redirect-to($redirect-uri) ) else &lt;p&gt;User already exists!&lt;/p&gt; }; declare function local:do-reg() as element()? { let $user := request:get-parameter("user", ()) return &lt;p&gt;{$user}&lt;/p&gt; if($user) then local:reg($user) else () }; &lt;html&gt; &lt;head&gt;&lt;title&gt;Registration&lt;/title&gt; &lt;/head&gt; &lt;body&gt; {local:header()} &lt;h1&gt;Forma for reg&lt;/h1&gt; &lt;form action="{request:get-uri()}"&gt; User Name: &lt;br /&gt; &lt;input type="text" name="user" size="20" /&gt; &lt;br /&gt; Password: &lt;br /&gt; &lt;input type="password" name="password" size="20" /&gt; &lt;br /&gt; Confirm: &lt;br /&gt; &lt;input type="password" name="password2" size="20" /&gt; &lt;br /&gt; &lt;input type="submit" /&gt; &lt;input type="reset" name="reset" value="Clear" /&gt; &lt;/form&gt; {local:do-reg()} {local:footer()} &lt;/body&gt; &lt;/html&gt; </code></pre> <p>Please help, i'm beginner in xquery and exist db. Thanks in advance!</p>
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