ColumnExists, AddColumn Extensions

I would like to do this:

//Create Database:
if(!db.TableExists<MyEntity>())
{
    db.CreateTable<MyEntity>(); //Right now I have to try catch that...
}
//Updating db:
//These can ether be on ITable<MyEntity> or db itself
if(!Entities.ColumnExists(e => e.NewProperty)) 
{
    Entities.AddColumn(e => e.NewProperty);
}

[viceroypenguin]

@SlowLogicBoy @frankhaugen

You can create your own extension method to replicate CreateTableIfNotExists as such:

public static void CreateTableIfNotExists<T>(this DataConnection connection, string tableName)
{
    connection.CreateTable<T>(
        "tableName",
        statementHeader: "if not exists (select * from sys.tables where name = 'tmpAccount') begin create table " + tableName,
        statementFooter: "end");
}

You can add additional parameters to pass through to CreateTable() as needed, or switch to CreateTableAsync().

NB: above is for SQL Server only. Adjust for your preferred db.

[sdanyliv]

You can create the following extension probably in separate static class:

public static bool ColumnExists<T>(this DataConnection dataConnection, 
	string  tableName,
        string  columnName,
	string? databaseName = default,
	string? schemaName   = default,
	string? serverName   = default)
	where T : class
{
	return dataConnection.DataProvider.ColumnExists(...);
}

You can use as reference DataConnectionExtensions.BulkCopy