Public/Remove-Neo4jNode.ps1
|
function Remove-Neo4jNode { <# .SYNOPSIS Remove Neo4j nodes .DESCRIPTION Remove Neo4j nodes .EXAMPLE @{ComputerName = 'web01'} | Remove-Neo4jNode -Label Server # Remove a node with the label 'Server' and ComputerName 'web01' .EXAMPLE Remove-Neo4jNode -Label Server -Detach -Hash @{ ComputerName = 'web01' } # Remove a node with the label 'Server' and ComputerName 'web01', and any relationships to or from it. .PARAMETER Label Remove nodes with this label Warning: susceptible to query injection .PARAMETER Hash One or more hashtables containing properties and values corresponding to nodes we will delete Warning: susceptible to query injection (keys only. values are parameterized) .PARAMETER Where Filter matching nodes with this. Use 'delete' as the matched item Example: WHERE delete.something = 'blah' Warning: susceptible to query injection .PARAMETER Detach If specified, remove any relationships to or from the nodes being deleted .PARAMETER As Parse the Neo4j response as... Parsed: We attempt to parse the output into friendlier PowerShell objects Please open an issue if you see unexpected output with this Raw: We don't touch the response ($Response) Results: We expand the 'results' property on the response ($Response.results) Row: We expand the 'row' property on the responses results ($Response.results.data.row) We default to the value specified by Set-PSNeo4jConfiguration (Initially, 'Parsed') See ConvertFrom-Neo4jResponse for implementation details .PARAMETER MetaProperties Merge zero or any combination of these corresponding meta properties in the results: 'id', 'type', 'deleted' We default to the value specified by Set-PSNeo4jConfiguration (Initially, 'type') .PARAMETER MergePrefix If any MetaProperties are specified, we add this prefix to avoid clobbering existing neo4j properties We default to the value specified by Set-PSNeo4jConfiguration (Initially, 'Neo4j') .PARAMETER BaseUri BaseUri to build REST endpoint Uris from We default to the value specified by Set-PSNeo4jConfiguration (Initially, 'http://127.0.0.1:7474') .PARAMETER Credential PSCredential to use for auth We default to the value specified by Set-PSNeo4jConfiguration (Initially, neo4j:neo4j) .FUNCTIONALITY Neo4j #> [cmdletbinding()] param( [string]$Label, [parameter(ValueFromPipeline=$True)] [hashtable[]]$Hash, [string]$Where, [switch]$Detach, [validateset('Raw', 'Results', 'Row', 'Parsed', 'ParsedColumns')] [string]$As = $PSNeo4jConfig.As, [validateset('id', 'type', 'deleted')] [string]$MetaProperties = $PSNeo4jConfig.MetaProperties, [string]$MergePrefix = $PSNeo4jConfig.MergePrefix, [string]$BaseUri = $PSNeo4jConfig.BaseUri, [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential = $PSNeo4jConfig.Credential ) begin { $DetachString = $null if($Detach) {$DetachString = 'DETACH '} write-verbose "$Detach and [$DetachString]" $Queries = [System.Collections.ArrayList]@() $Count = 0 } process { foreach($PropHash in $Hash) { $InvokeParams = @{} $SQLParams = @{} $PropString = $null if($Hash.keys.count -gt 0) { $Props = foreach($Property in $PropHash.keys) { "$Property`: `$delete$Count$Property" $SQLParams.Add("delete$Count$Property", $PropHash[$Property]) } $PropString = $Props -join ', ' $PropString = "{$PropString}" } $Query = "MATCH (delete:$Label $PropString)" if($Where){ $Query = "$Query`n$Where" } $Count++ [void]$Queries.Add("$Query $DetachString DELETE delete") } } end { if($SQLParams.Keys.count -gt 0) { $InvokeParams.add('Parameters', $SQLParams) } $InvokeParams.add('Query', $Queries) $Params = . Get-ParameterValues -BoundParameters $PSBoundParameters -Invocation $MyInvocation -Properties MetaProperties, MergePrefix, Credential, BaseUri, As Write-Verbose "$($Params | Format-List | Out-String)" Invoke-Neo4jQuery @Params @InvokeParams } } |