Overview
Performs an xquery on repository and returns the results as xml node array.Array<Xml> $XmlRepository.QueryXml(xquery: string, parameters: object)
Arguments
string xquery
Specifies the query to perform on the database. The syntax of the query is quite detailed. More information can be found xquery standard page.
object parameters
Specifies the binding parameters on xquery string.
Remarks
If query does not return any result than return value is empty array.
See XML $Database page for further information about domain and process databases.
Example
Find all customers
| Code Block | ||
|---|---|---|
| ||
var results = $XmlRepository.Query('//Customer');
$Xml.InnerXml( 'Customer', results.join() ); |
Example
Find customer by id
| Code Block | ||
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var results = $XmlRepository.Query('//Customer[Id=$id]', {
id : $Xml.Evaluate('CustomerId')
});
$Xml.InnerXml( 'Customers', results.join() ); |
| Info |
|---|
If you want to query the database of a process, you can use the collection keyword. You have to give the name of the database which is a GUID. For process databases, you can have that GUID by $Instance.ProcessId. |
Example
Querying process database
| Code Block | ||
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| ||
var results = $XmlRepository.QueryXml('collection("49551ed3-6229-408a-aaaa-eb510463acad")//Customer[Id=$id]', {
id : $Xml.Evaluate('CustomerId')
});
$Xml.InnerXml( 'Customers', results[0].Evaluate('Id') ); |