Database/Database.psm1
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if (!(Test-Path variable:Global:SQLiteConn )) { $Global:SQLiteConn = New-Object System.Collections.ArrayList } <# .Synopsis Creates a connection to a SQLite3 Database .DESCRIPTION Creates a connection to a SQLite3 Database file and stores the connection in to $Global:sqliteconn. .EXAMPLE Opens database main.db and creates a connection object for it. PS C:\> Connect-DBSQLite3 -DataBase .\main.db Connection Database Index ---------- -------- ----- System.Data.SQLite.SQLiteConnection .\main.db 0 #> function Connect-DBSQLite3 { [CmdletBinding()] param ( # Databse file to open. [Parameter(Mandatory=$true, ValueFromPipelineByPropertyName=$true, Position=0)] [ValidateScript({Test-Path $_})] [string]$DataBase # Open Database ReadOnly also. #[switch]$ReadOnly, # Password for opening the database if it requieres it. #[SecureString]$Password ) Begin { $x86Assembly = "$($PSScriptRoot)\x86\System.Data.SQLite.dll" $x64Assembly = "$($PSScriptRoot)\x64\System.Data.SQLite.dll" # Load the appropiate DLL Depending on the Archiecture switch ([intptr]::size) { 4 {$sqlitedll = [System.Reflection.Assembly]::LoadFrom($x86Assembly)} 8 {$sqlitedll = [System.Reflection.Assembly]::LoadFrom($x64Assembly)} } $DataBaseFile = (Get-ItemProperty $DataBase).FullName } Process { $cn = New-Object -TypeName System.Data.SQLite.SQLiteConnection $cn.ConnectionString = "Data Source=$DataBaseFile" $cn.Open() $conn_obj = $cn if ($Global:sqliteconn -notcontains $conn_obj) { $SessionIndex = $Global:sqliteconn.Count $NewConnection = New-Object psobject -Property @{ Index = $SessionIndex.ToString() ; Connection = $conn_obj; Database = $DataBase } [void]$Global:sqliteconn.Add($NewConnection) # Return the connection object. $NewConnection } else { Write-Warning "A connection to $DataBase already exists." } } End { } } <# .Synopsis Removes a specific SQLite3 connection .DESCRIPTION Removes a specific SQLite3 connection given its Index .EXAMPLE Disconnect all SQLite3 connections PS C:\> Get-DBSQLite3Connection | Remove-SQLite3Connection Connection Database Index ---------- -------- ----- System.Data.SQLite.SQLiteConnection .\main.db 0 .EXAMPLE Remove a SQLite3 connection given its index PS C:\> Remove-DBSQLite3Connection -Index 0 Connection Database Index ---------- -------- ----- System.Data.SQLite.SQLiteConnection .\main.db 0 #> function Remove-DBSQLite3Connection { [CmdletBinding()] param( # Index for the database connection. [Parameter(Mandatory=$true, ValueFromPipelineByPropertyName=$true)] [Int32] $Index ) Begin{ $currentConnections = @() foreach($conn in $Global:sqliteconn) {$currentConnections += $conn} } Process { if ($Index -ge 0) { Write-Verbose "Removing connection with Index $Index" foreach($i in $Index) { foreach($Connection in $currentConnections) { if ($Connection.Index -eq $i) { Write-Verbose "Connection Found" $Connection.connection.close() $Global:sqliteconn.Remove($Connection) Write-Verbose "Connection removed." } } } } } End{} } <# .Synopsis Get SQLite3 Connections .DESCRIPTION Get all or a specified existing SQLite3 Connection. .EXAMPLE Gets all SQLIte3 Connections PS C:\> Get-DBSQLite3Connection Connection Database Index ---------- -------- ----- System.Data.SQLite.SQLiteConnection .\main.db 0 #> function Get-DBSQLite3Connection { [CmdletBinding()] param( [Parameter(Mandatory=$false)] [Int32] $Index ) Begin{} Process { if ($Index) { foreach($i in $Index) { foreach($Connection in $Global:sqliteconn) { if ($Connection.Index -eq $i) { $Connection } } } } else { # Return all database connections. $return_sessions = @() foreach($s in $Global:sqliteconn){$return_sessions += $s} $return_sessions } } End{} } <# .Synopsis Exsecutes SQL query against SQLite3 Connection .DESCRIPTION Exsecutes SQL query against SQLite3 Connection against an existing SQLite3 Connection .EXAMPLE Execute query to list all the tables in the database. PS C:\> Invoke-SQLite3Query -SQL "SELECT name FROM sqlite_master WHERE type='table' ORDER BY name;" -Index 0 #> function Invoke-DBSQLite3Query { [CmdletBinding()] param( [Parameter(Mandatory=$true)] [string]$SQL, [Parameter(Mandatory=$true, ParameterSetName = "Index")] [int32]$Index, [Parameter(Mandatory=$true, ParameterSetName = "Connection")] [PSobject]$Connection ) if ($Index -ge 0) { Write-Verbose "Executing Query $SQL" Write-Verbose "Executing against $Index" foreach($conn in $Global:sqliteconn) { if ($conn.index -in $Index) { $cmd = new-object System.Data.SQLite.SQLiteCommand($SQL,$conn.Connection) $ds = New-Object system.Data.DataSet $da = New-Object System.Data.SQLite.SQLiteDataAdapter($cmd) $da.fill($ds) | Out-Null return $ds.tables[0] } } } elsif ($Connection -ne $null) { $cmd = new-object System.Data.SQLite.SQLiteCommand($SQL,$Connection.Connection) $ds = New-Object system.Data.DataSet $da = New-Object System.Data.SQLite.SQLiteDataAdapter($cmd) $da.fill($ds) | Out-Null return $ds.tables[0] } } function New-DBSQLConnectionString { [CmdletBinding()] Param( [string]$ServerName, [string]$DatabaseName, [string]$UserName, [string]$Password, [Switch]$IntegratedAuth ) If($IntegratedAuth) { $ConnectionString = "server=$ServerName;database=$DatabaseName;trusted_connection=true;" } Else { $ConnectionString = "server=$ServerName;database=$DatabaseName;User Id=$UserName;Password=$Password;trusted_connection=False;" } Return $ConnectionString } |