Functions/GenXdev.Data.KeyValueStore/Remove-KeyValueStore.ps1
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################################################################################ <# .SYNOPSIS Removes a key-value store from the database. .DESCRIPTION Removes all entries for a specified store from the database. For local stores, performs a physical delete. For synchronized stores, marks entries as deleted and triggers synchronization. This function supports both local and cloud- synchronized stores with proper audit trail maintenance. .PARAMETER StoreName The name of the key-value store to remove. .PARAMETER SynchronizationKey The synchronization scope identifier. Defaults to "Local" for non-synchronized stores. .PARAMETER SessionOnly Use alternative settings stored in session for Data preferences like Language, Database paths, etc. .PARAMETER ClearSession Clear the session setting (Global variable) before retrieving. .PARAMETER DatabasePath Database path for key-value store data files. .PARAMETER SkipSession Dont use alternative settings stored in session for Data preferences like Language, Database paths, etc. .EXAMPLE Remove-KeyValueStore -StoreName "ConfigurationStore" -SynchronizationKey "Cloud" .EXAMPLE Remove-KeyValueStore "ConfigurationStore" "Cloud" #> ################################################################################ function Remove-KeyValueStore { [CmdletBinding(SupportsShouldProcess = $true)] param ( ####################################################################### [Parameter( Mandatory = $true, Position = 0, HelpMessage = "Name of the store to delete" )] [string]$StoreName, ####################################################################### [Parameter( Mandatory = $false, Position = 1, HelpMessage = "Key to identify synchronization scope" )] [string]$SynchronizationKey = "Local", ####################################################################### [Parameter( Mandatory = $false, HelpMessage = ("Database path for key-value store data files") )] [string]$DatabasePath, ####################################################################### [Parameter( Mandatory = $false, HelpMessage = ("Use alternative settings stored in session for " + "Data preferences like Language, Database paths, etc") )] [switch]$SessionOnly, ####################################################################### [Parameter( Mandatory = $false, HelpMessage = ("Clear the session setting (Global variable) " + "before retrieving") )] [switch]$ClearSession, ####################################################################### [Parameter( Mandatory = $false, HelpMessage = ("Dont use alternative settings stored in session " + "for Data preferences like Language, Database paths, etc") )] [Alias("FromPreferences")] [switch]$SkipSession ####################################################################### ) begin { # determine database file path using provided path or default location if ([string]::IsNullOrWhiteSpace($DatabasePath)) { # build default path to local application data folder $databaseFilePath = GenXdev.FileSystem\Expand-Path ` ("$($ENV:LOCALAPPDATA)\GenXdev.PowerShell\" + "KeyValueStores.sqllite.db") ` -CreateDirectory } else { # use provided database path and ensure directory exists $databaseFilePath = GenXdev.FileSystem\Expand-Path $DatabasePath ` -CreateDirectory } # output verbose information about database location Microsoft.PowerShell.Utility\Write-Verbose ` "Using database at: $databaseFilePath" } process { # check if database file exists and initialize if necessary if (-not (Microsoft.PowerShell.Management\Test-Path ` $databaseFilePath)) { # output verbose information about database initialization Microsoft.PowerShell.Utility\Write-Verbose ` "Database not found, initializing new database" # create new database with required schema $null = GenXdev.Data\Initialize-KeyValueStores } # construct audit trail identifier from computer and user names $lastModifiedBy = "$env:COMPUTERNAME\$env:USERNAME" # output verbose information about operation performer Microsoft.PowerShell.Utility\Write-Verbose ` "Operation performed by: $lastModifiedBy" # determine appropriate sql operation based on synchronization scope if ($SynchronizationKey -eq "Local") { # prepare for physical deletion of local store entries $operation = "Deleting local store" $sqlQuery = @" DELETE FROM KeyValueStore WHERE storeName = @storeName AND synchronizationKey = @syncKey; "@ } else { # prepare for logical deletion with audit trail for sync stores $operation = "Marking sync store as deleted" $sqlQuery = @" UPDATE KeyValueStore SET deletedDate = CURRENT_TIMESTAMP, lastModified = CURRENT_TIMESTAMP, lastModifiedBy = @modifiedBy WHERE storeName = @storeName AND synchronizationKey = @syncKey; "@ } # verify user consent for potentially destructive operation if ($PSCmdlet.ShouldProcess($StoreName, $operation)) { # construct parameter hashtable for sql query execution $params = @{ 'storeName' = $StoreName 'syncKey' = $SynchronizationKey 'modifiedBy' = $lastModifiedBy } # output verbose information about database operation Microsoft.PowerShell.Utility\Write-Verbose ` "Executing database operation for store: $StoreName" # transfer applicable parameters from current function to query function $queryParams = GenXdev.Helpers\Copy-IdenticalParamValues ` -BoundParameters $PSBoundParameters ` -FunctionName "GenXdev.Data\Invoke-SQLiteQuery" ` -DefaultValues (Microsoft.PowerShell.Utility\Get-Variable ` -Scope Local ` -ErrorAction SilentlyContinue) # configure specific parameters for database query execution $queryParams.DatabaseFilePath = $databaseFilePath $queryParams.Queries = $sqlQuery $queryParams.SqlParameters = $params # execute sql command against sqlite database $null = GenXdev.Data\Invoke-SQLiteQuery @queryParams # initiate synchronization process for cloud-synchronized stores if ($SynchronizationKey -ne "Local") { # output verbose information about synchronization trigger Microsoft.PowerShell.Utility\Write-Verbose ` "Triggering synchronization for key: $SynchronizationKey" # transfer applicable parameters to synchronization function $syncParams = GenXdev.Helpers\Copy-IdenticalParamValues ` -BoundParameters $PSBoundParameters ` -FunctionName "GenXdev.Data\Sync-KeyValueStore" ` -DefaultValues (Microsoft.PowerShell.Utility\Get-Variable ` -Scope Local ` -ErrorAction SilentlyContinue) # configure synchronization key for cloud sync operation $syncParams.SynchronizationKey = $SynchronizationKey # execute synchronization to propagate changes to cloud $null = GenXdev.Data\Sync-KeyValueStore @syncParams } } } end { } } ################################################################################ |