public/Remove-Task.ps1
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function Remove-Task { <# .SYNOPSIS Remove a task from a TODO list. .DESCRIPTION Remove a task from a TODO list by Id. .PARAMETER Id Defines the ID of a task that is to be removed. .PARAMETER User Each TODO list is accociated to a user account. The default user account is read from the username environment variable. Specify a value for this parameter to access an another TODO list from a different user. .INPUTS You can pipe Task objects to Remove-Task. .OUTPUTS None. .EXAMPLE PS C:\> Remove-Task 23 Remove a task whose Id equals 23. .EXAMPLE PS C:\> Get-TodoList -All | where Status -eq 'Done' | Remove-Task -WhatIf Remove all tasks from the current user's TODO list that were marked as done. #> [Alias("rtask")] [CmdletBinding(SupportsShouldProcess)] param( [Parameter(Position = 0, Mandatory, ValueFromPipelineByPropertyName)] [int[]] $Id, [Parameter()] [string] $User = $env:USERNAME ) begin { $SavePath = Join-Path -Path $([Environment]::GetFolderPath("ApplicationData")) -ChildPath "Todo" $DatabasePath = Join-Path -Path $SavePath -ChildPath "${User}.db" if (-not (Test-Path $DatabasePath)) { Write-Error -Message "This TODO list does not exist. You can create one with the command 'New-TodoList -User ${User}'" -Category ObjectNotFound -ErrorAction Stop } $Connection = New-Object -TypeName System.Data.SQLite.SQLiteConnection $Connection.ConnectionString = "DATA SOURCE=${DatabasePath}" $Connection.Open() } process { foreach ($i in $Id) { $Sql = $Connection.CreateCommand() $Sql.CommandText = "DELETE FROM TodoList WHERE Id = ${i}" if ($PSCmdlet.ShouldProcess($Sql.CommandText)) { $Sql.ExecuteNonQuery() | Out-Null } } } end { $Connection.Close() $Sql.Dispose() } } |