/// <summary>
/// Initialize from a source, every item is added by calling InsertOrUpdate
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="writer"></param>
/// <param name="copyFrom"></param>
/// <returns></returns>
public static async Task Initialize <T>(this ITableWriter <T> writer, ITableReader <T> copyFrom)
{
var list = await copyFrom.GetAll();
foreach (var item in list)
{
var item1 = item;
await writer.InsertOrUpdate(item, obj => item1);
}
}
/// <summary>
/// This will ignore the exisiting TEntity and replace it.
/// </summary>
/// <typeparam name="TEntity"></typeparam>
/// <param name="writer"></param>
/// <param name="match"></param>
/// <param name="replace"></param>
public static Task Replace <TEntity>(this ITableWriter <TEntity> writer, TEntity match, Action <TEntity> replace)
{
if (writer == null)
{
throw new ArgumentNullException("writer");
}
var add = new Func <TEntity>(
() =>
{
var e = match;
replace(e);
return(e);
});
Func <TEntity, TEntity> updatefun = entity =>
{
var item = match;
replace(item);
return(item);
};
return(writer.InsertOrUpdate(add(), updatefun));
}
