Private/ConvertTo-QueryXML.ps1
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<#
.COPYRIGHT Copyright (c) Office Center Hønefoss AS. All rights reserved. Licensed under the MIT license. See https://github.com/officecenter/OCH-Public/blob/master/LICENSE for license information. #> function ConvertTo-QueryXML { [cmdletbinding()] param( [switch]$UDF, [Parameter(Mandatory = $true,ValueFromRemainingArguments = $true)] [String[]]$QueryText, [Switch] $QueryStringOnly = $false ) # List of allowed operator in QueryXML $Operator = @{ '-and' = 'and' '-or' = 'or' '-begin' = 'begin' '-end' = 'end' } # List of all allowed condition in QueryXML $ConditionOperator = @{ '-eq' = 'Equals' '-ne' = 'NotEqual' '-gt' = 'GreaterThan' '-lt' = 'LessThan' '-ge' = 'GreaterThanorEquals' '-le' = 'LessThanOrEquals' '-beginswith' = 'BeginsWith' '-endswith' = 'EndsWith' '-contains' = 'Contains' '-isnotnull' = 'IsNotNull' '-isnull' = 'IsNull' '-isthisday' = 'IsThisDay' '-like' = 'Like' '-notlike' = 'NotLike' '-soundslike' = 'SoundsLike' } $NoValueNeeded = @('-isnotnull', '-isnull', '-isthisday') # Create an XML document object. Only used to create XML elements. $xml = New-Object -TypeName XML # Create base element and add a single Entity definition to it. $queryxml = $xml.CreateElement('queryxml') $entityxml = $xml.CreateElement('entity') $null = $queryxml.AppendChild($entityxml) # Entity is the first element of the querytext $entityxml.InnerText = $QueryText[0] # Create an XML element for the query tag. # It will contain all condition. $Query = $xml.CreateElement('query') $null = $queryxml.AppendChild($Query) # Set generic pointer $Node to the query tag $Node = $Query # Create an index pointer that starts on the second element # of the querytext array For ($i = 1; $i -lt $QueryText.Count; $i++) { Switch ($QueryText[$i]) { # Check for operator { $Operator.Keys -contains $_ } { # Element is an operator. Add a condition tag with # attribute 'operator' set to the value of element $Condition = $xml.CreateElement('condition') If ($_ -eq '-begin') { # Add nested condition $null = $Node.AppendChild($Condition) $Node = $Condition $Condition = $xml.CreateElement('condition') } If ('-or', '-and' -contains $_) { $Condition.SetAttribute('operator', $Operator[$_]) } # Append condition to current $Node $null = $Node.AppendChild($Condition) # Set condition tag as current $Node. Next field tag # should be nested inside the condition tag. $Node = $Condition Break } # End a nested condition '-end' { $Node = $Node.ParentNode Break } # Check for a condition { $ConditionOperator.Keys -contains $_ } { # Element is a condition. Add an expression tag with # attribute 'op' set to the value of element $Expression = $xml.CreateElement('expression') $Expression.SetAttribute('op', $ConditionOperator[$_]) # Append condition to current $Node $null = $Node.AppendChild($Expression) # Not all condition need a value. If ($NoValueNeeded -notcontains $_) { # Increase pointer and add next element as # Value to expression $i++ $Expression.InnerText = $QueryText[$i] } # An expression closes a field tag. The next # element refers to the next level up. $Node = $Node.ParentNode # If the parentnode is a conditiontag we need # to go one more step up If ($Node.Name -eq 'condition') { $Node = $Node.ParentNode } Break } # Everything that aren't an operator or a condition is treated # as a field. default { # Create a field tag, fill it with element # and add it to current Node $Field = $xml.CreateElement('field') $Field.InnerText = $QueryText[$i] $null = $Node.AppendChild($Field) # If UDF is set we must add an attribute to the field # tag. But only once! If ($UDF) { $Field.SetAttribute('udf', 'true') # Only the first field can be UDF $UDF = $false } # The field tag is now the current Node $Node = $Field } } } Return $($queryxml.OuterXml) } |