Public/Remove-Neo4jConstraint.ps1
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function Remove-Neo4jConstraint { <# .SYNOPSIS Remove constraints to Neo4j properties .DESCRIPTION Remove constraints to Neo4j properties .EXAMPLE Remove-Neo4jConstraint -Label Server -Property computername -Unique # Drop unique constraint from the 'computername' property on nodes with the 'Server' label .PARAMETER Label Label that contains properties to drop constraints from .PARAMETER Relationship Relationship that contains properties to drop constraints from .PARAMETER Property One or more properties to drop constraints from .PARAMETER Unique Drop a unique constraint on specified properties .PARAMETER Exists Drop an exists constraint on specified properties This requires Neo4j Enterprise .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 ($Response.results.data.row) We default to the value specified by Set-PSNeo4jConfiguration (Initially, 'Parsed') See ConvertFrom-Neo4jResponse for implementation details .PARAMETER MetaProperties Merge zero or any combination of these corresponding meta properties in the results: 'id', 'type', 'deleted' We default to the value specified by Set-PSNeo4jConfiguration (Initially, 'type') .PARAMETER MergePrefix If any MetaProperties are specified, we add this prefix to avoid clobbering existing neo4j properties We default to the value specified by Set-PSNeo4jConfiguration (Initially, 'Neo4j') .PARAMETER BaseUri BaseUri to build REST endpoint Uris from We default to the value specified by Set-PSNeo4jConfiguration (Initially, 'http://127.0.0.1:7474') .PARAMETER Credential PSCredential to use for auth We default to the value specified by Set-PSNeo4jConfiguration (Initially, not specified) .FUNCTIONALITY Neo4j #> [cmdletbinding(DefaultParameterSetName = 'Node')] param( [parameter(ParameterSetName = 'Node')] [string]$Label, # Injection alert [parameter(ParameterSetName = 'Relationship')] [string]$Relationship, # Injection alert [string[]]$Property, # Injection alert [parameter(ParameterSetName = 'Node')] [switch]$Unique, [parameter(ParameterSetName = 'Node')] [switch]$Exists, [validateset('Raw', 'Results', 'Row', 'Parsed')] [string]$As = $PSNeo4jConfig.As, [validateset('id', 'type', 'deleted')] [string]$MetaProperties = $PSNeo4jConfig.MetaProperties, [string]$MergePrefix = $PSNeo4jConfig.MergePrefix, [string]$BaseUri = $PSNeo4jConfig.BaseUri, [ValidateNotNull()] [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential = $PSNeo4jConfig.Credential ) $Query = [System.Collections.ArrayList]@() if($PSCmdlet.ParameterSetName -eq 'Node') { if($Unique) { Foreach($Prop in $Property) { [void]$Query.add("DROP CONSTRAINT ON (l:$Label) ASSERT l.$Prop IS UNIQUE") } } If($Exists) { Foreach($Prop in $Property) { # Requires enterprise. Interesting [void]$Query.add("DROP CONSTRAINT ON (l:$Label) ASSERT exists(l.$Prop)") } } } if($PSCmdlet.ParameterSetName -eq 'Relationship') { Foreach($Prop in $Property) { # Requires enterprise. Interesting [void]$Query.add("DROP CONSTRAINT ON ()-[l:$Relationship]-() ASSERT exists(l.$Prop)") } } Write-Verbose "Query: [$Query]" $Params = . Get-ParameterValues -Properties MetaProperties, MergePrefix, Credential, BaseUri, As Invoke-Neo4jQuery @Params -Query $Query } |