Functions/Columns/New-TimeColumn.ps1
|
function New-TimeColumn { <# .SYNOPSIS Creates a column object representing an Time datatype. .DESCRIPTION Use this function in the `Column` script block for `Add-Table`: Add-Table 'WithTime' { Time 'ColumnName' } ## ALIASES * Time .EXAMPLE Add-Table 'WithTime' { New-TimeColumn 'CreatedAt' 5 -NotNull } Demonstrates how to create a required `time` column with a given scale when adding a new table. .EXAMPLE Add-Table 'WithTime' { Time 'CreatedAt' -Sparse } Demonstrate show to create a nullable, sparse `time` column when adding a new table. .EXAMPLE Add-Table 'WithTime' { Time 'CreatedAt' -NotNull -Default 'convert(`time`, getutcdate())' } Demonstrates how to create a `time` column with a default value, in this case the current time. You alwyas use UTC, right? .EXAMPLE Add-Table 'WithTime' { Time 'CreatedAt' -NotNull -Description 'The `time` the record was created.' } Demonstrates how to create a `time` column with a description. #> [CmdletBinding(DefaultParameterSetName='Null')] param( [Parameter(Mandatory=$true,Position=0)] [string] # The column's name. $Name, [Parameter(Position=1)] [Int] # The number of decimal digits that will be stored to the right of the decimal point. $Precision, [Parameter(Mandatory=$true,ParameterSetName='NotNull')] [Switch] # Don't allow `NULL` values in this column. $NotNull, [Parameter(ParameterSetName='Null')] [Switch] # Store nulls as Sparse. $Sparse, [Parameter()] [string] # A SQL Server expression for the column's default value $Default, [Parameter()] [string] # A description of the column. $Description ) $dataSize = $null if( $PSBoundParameters.ContainsKey('Precision') ) { $dataSize = New-Object Rivet.PrecisionScale $Precision } $nullable = $PSCmdlet.ParameterSetName if( $nullable -eq 'Null' -and $Sparse ) { $nullable = 'Sparse' } [Rivet.Column]::Time($Name, $dataSize, $nullable, $Default, $Description) } Set-Alias -Name 'Time' -Value 'New-TimeColumn' |