Commands/New-EFPoshContext.ps1
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Function New-EFPoshContext{ <# .SYNOPSIS Creates a new EFPosh Context Interaction object and stores it in the Module space for reuse .DESCRIPTION Creates a new EFPosh Context Interaction object and stores it in the Module space for reuse .PARAMETER ConnectionString ConnectionString to the database - accepts SQLite or MSSql connection strings .PARAMETER DBType Is this a SQLite or MSSql database we are connecting to .PARAMETER SQLiteFile Instead of building a connection string, you can give us the file name and we'll build a SqlLite connection string from it .PARAMETER MSSQLServer Instead of building a connection string, you can give us the MSSql server .PARAMETER MSSQLDatabase Instead of building a connection string, you can give us the MSSql database .PARAMETER MSSQLIntegratedSecurity Instead of building a connection string, you can give us the integrated security property .PARAMETER Entities A list of Entities that will map to database tables. Use New-EFPoshEntityDefinition to create these. .PARAMETER EnsureCreated Will create the database if it's not created already. If the database exists but the tables aren't correct, this will do nothing as it's only checking if it exists .PARAMETER ReadOnly Will turn off tracking by default - if you don't plan on editing anything, this is highly recommended and it will make the queries a little faster .PARAMETER AssemblyFile If you already have a built Entity Framework context, this can load it. We currently use EF 2.2.6 as VSCode PowerShell extension loads .netstandard 2.0 - so that's the latest version we can use .PARAMETER ClassName If you have an entity framework Context dll - tell us the class that we're looking for (needs a DBOptions constructor) .EXAMPLE New-EFPoshContext -ConnectionString 'Filename=.\MyDatabase.sqlite' -DBType 'SQLite' -Types @('Table1','Table2') -EnsureCreated This will check if the file MyDatabase.sqlite exists, and if it doesn't create it with the DB schema for the provided types .NOTES .Author: Ryan Ephgrave #> [CmdletBinding()] Param( [Parameter(Mandatory=$true, ParameterSetName = "ConnectionString")] [string]$ConnectionString, [Parameter(Mandatory = $false, ParameterSetName = "ConnectionString")] [ValidateSet('SQLite', 'MSSQL')] [string]$DBType = 'MSSQL', [Parameter(Mandatory = $true, ParameterSetName = "SQLite")] [string]$SQLiteFile, [Parameter(Mandatory = $true, ParameterSetName = "MSSQL")] [string]$MSSQLServer, [Parameter(Mandatory = $true, ParameterSetName = "MSSQL")] [string]$MSSQLDatabase, [Parameter(Mandatory = $false, ParameterSetName = "MSSQL")] [bool]$MSSQLIntegratedSecurity = $false, [Parameter(Mandatory = $false, ParameterSetName = "ConnectionString")] [Parameter(Mandatory = $false, ParameterSetName = "SQLite")] [Parameter(Mandatory = $false, ParameterSetName = "MSSQL")] [EFPosh.PoshEntity[]]$Entities, [Parameter(Mandatory = $false, ParameterSetName = "ConnectionString")] [Parameter(Mandatory = $false, ParameterSetName = "SQLite")] [Parameter(Mandatory = $false, ParameterSetName = "MSSQL")] [switch]$EnsureCreated, [Parameter(Mandatory = $false, ParameterSetName = "ConnectionString")] [Parameter(Mandatory = $false, ParameterSetName = "SQLite")] [Parameter(Mandatory = $false, ParameterSetName = "MSSQL")] [switch]$RunMigrations, [Parameter(Mandatory = $false, ParameterSetName = "ConnectionString")] [Parameter(Mandatory = $false, ParameterSetName = "SQLite")] [Parameter(Mandatory = $false, ParameterSetName = "MSSQL")] [switch]$ReadOnly, [Parameter(Mandatory = $false, ParameterSetName = "ConnectionString")] [Parameter(Mandatory = $false, ParameterSetName = "SQLite")] [Parameter(Mandatory = $false, ParameterSetName = "MSSQL")] [string]$AssemblyFile, [Parameter(Mandatory = $false, ParameterSetName = "ConnectionString")] [Parameter(Mandatory = $false, ParameterSetName = "SQLite")] [Parameter(Mandatory = $false, ParameterSetName = "MSSQL")] [string]$ClassName ) if($Entities -and $AssemblyFile){ throw 'Entities parameter can not be used with AssemblyFile - please use one or the other' return } if($AssemblyFile -and -not $ClassName){ throw 'You must provide the ClassName to look for in the assembly' return } $Script:LatestDBContext = $null $Script:LatestDBContext = [EFPosh.PoshContextInteractions]::new() if($PSVersionTable.PSVersion.Major -gt 5){ $Script:LatestDBContext.SetDependencyFolder("$PSScriptRoot\Dependencies\net6.0") } else{ $Script:LatestDBContext.SetDependencyFolder("$PSScriptRoot\Dependencies\net472") } $boolEnsureCreated = $false if($EnsureCreated){ $boolEnsureCreated = $true } $boolReadOnly = $false if($ReadOnly) { $boolReadOnly = $true } $boolRunMigrations = $false if($RunMigrations){ $boolRunMigrations = $true } if($PSCmdlet.ParameterSetName -eq 'SQLite'){ $DBType = 'SQLite' $ConnectionString = "Filename=$($SQLiteFile)" } elseif($PSCmdlet.ParameterSetName -eq 'MSSQL'){ $DBType = 'MSSQL' $ConnectionString = "Server=$($MSSQLServer);Database=$($MSSQLDatabase);Integrated Security=$($MSSQLIntegratedSecurity)" } if([string]::IsNullOrEmpty($AssemblyFile)){ $null = $Script:LatestDBContext.NewPoshContext($ConnectionString, $DBType, $Entities, $boolEnsureCreated, $boolRunMigrations, $boolReadOnly) } else{ $null = $Script:LatestDBContext.ExistingContext($ConnectionString, $DBType, $boolEnsureCreated, $boolRunMigrations ,$boolReadOnly, $AssemblyFile, $ClassName) } return $Script:LatestDBContext } |