MarkLogic 初学

来源：互联网发布：surface book mac 编辑：程序博客网时间：2024/05/01 20:03

MarkLogic -> Groups ->Default -> App Servers -> App Server分为三类：

Http
WebDAV
XDBC

其中：

Root 就是数据库根目录

Module是放的xquery，而xquery其实就是view

Database才是放的数据，即xml文件

//insert a xml into db

load.xqy

xquery version "1.0-ml";(: load.xqy :)xdmp:document-insert("books.xml",<books xmlns="http://www.marklogic.com/ns/gs-books"><book bookid="1"><title>A Quick Path to an Application</title><author><last>Smith</last><first>Jim</first></author><publisher>Scribblers Press</publisher><isbn>1494-3930392-3</isbn><abstract>This book describes in detail the power of how to use XQuery to build powerful web applications that are built on the MarkLogic Server platform.</abstract></book></books>),<html xmlns="http://www.w3.org/1999/xhtml"><head><title>Database loaded</title></head><body><b>Source XML Loaded</b><p>The source XML has been successfully loaded into the database</p></body></html>

// get xml from db
dump.xqy

xquery version "1.0-ml";(: dump.xqy :)declare namespace bk = "http://www.marklogic.com/ns/gs-books";<html xmlns="http://www.w3.org/1999/xhtml"><head><title>Database dump</title></head><body><b>XML Content</b>{for $book in doc("books.xml")/bk:books/bk:bookreturn<pre>Title: { $book/bk:title/text() }Author: { ($book/bk:author/bk:first/text(), " ",$book/bk:author/bk:last/text()) }Publisher: { $book/bk:publisher/text() }</pre>}<a href="update-form.xqy">Update Publisher</a></body></html>

update-form.xqy

xquery version "1.0-ml";(: update-form.xqy :)declare namespace bk="http://www.marklogic.com/ns/gs-books";<html xmlns="http://www.w3.org/1999/xhtml"><head><title>Change Publisher</title></head><body>{let $book := doc("books.xml")/bk:books/bk:book[1]return<form action="update-write.xqy"><input type="hidden" name="bookid" value="{ $book/@bookid }"/><p><b>Change publisher for book <i>{ $book/bk:title/text() }</i>:</b></p><input type="text" name="publisher"value="{ $book/bk:publisher/text() }"/><input type="submit" value="Update publisher"/></form>}</body></html>

update-write.xqy

xquery version "1.0-ml";(: update-write.xqy :)declare namespace bk="http://www.marklogic.com/ns/gs-books";declare function local:updatePublisher(){if (doc("books.xml")) thenlet $bookid := xdmp:get-request-field("bookid")let $publisher := xdmp:get-request-field("publisher")let $b := doc("books.xml")/bk:books/bk:book[@bookid = $bookid]returnif ($b) then(xdmp:node-replace($b/bk:publisher,<bk:publisher>{ $publisher }</bk:publisher>),xdmp:redirect-response("dump.xqy"))else<span>Could not locate book with bookid { $bookid }.</span>else<span>Unable to access parent XML document.</span>};<html xmlns="http://www.w3.org/1999/xhtml"><head><title>Update In Process</title></head><body>Attempting to complete update and redirect browser to detail page.<p>If you are seeing this page, either the redirect has failedor the update has failed. The update has failed if there isa reason provided below:<br/>{ local:updatePublisher() }</p></body></html>