/// <summary>
/// Updates records from matching database recordset.
/// </summary>
/// <typeparam name="TSource">Entity type of source database recordset.</typeparam>
/// <param name="source">The source matching database recordset.</param>
/// <param name="columnMapper">Provides column mappings between source database recordset and this table.</param>
/// <param name="keyMapper">Provides key mapping between source database recordset and this table.</param>
/// <param name="ct">The async cancellation token.</param>
/// <returns>Number of rows updated.</returns>
public Task <int> UpdateAsync <TSource>(DbSet <TSource> source, Action <ColumnMapper, TSource, T> columnMapper, Func <TSource, T, KeyMapping> keyMapper, CancellationToken ct = default(CancellationToken))
where TSource : class, IEntity, new()
{
Verify(source, nameof(source));
var columnMappings = Verify(columnMapper, nameof(columnMapper), source._);
var keyMapping = Verify(keyMapper, nameof(keyMapper), source._);
return(DbTableUpdate <T> .ExecuteAsync(this, source, columnMappings, keyMapping.GetColumnMappings(), ct));
}
/// <summary>
/// Updates from matching row in DataSet.
/// </summary>
/// <typeparam name="TSource">Entity type of source DataSet.</typeparam>
/// <param name="source">The source DataSet.</param>
/// <param name="rowIndex">The row index in DataSet.</param>
/// <param name="columnMapper">Provides column mappings between source DataSet and this table.</param>
/// <param name="keyMapper">Provides key mapping between source DataSet and this table.</param>
/// <param name="ct">The async cancellation token.</param>
/// <returns>Number of rows updated.</returns>
public Task <int> UpdateAsync <TSource>(DataSet <TSource> source, int rowIndex, Action <ColumnMapper, TSource, T> columnMapper, Func <TSource, T, KeyMapping> keyMapper, CancellationToken ct = default(CancellationToken))
where TSource : Model, new()
{
Verify(source, nameof(source), rowIndex, nameof(rowIndex));
var columnMappings = Verify(columnMapper, nameof(columnMapper), source._);
var join = Verify(keyMapper, nameof(keyMapper), source._).GetColumnMappings();
return(DbTableUpdate <T> .ExecuteAsync(this, source, rowIndex, columnMappings, join, ct));
}
/// <summary>
/// Updates records in this table from matching DataSet.
/// </summary>
/// <typeparam name="TSource">Entity type of source DataSet.</typeparam>
/// <param name="source">The source DataSet.</param>
/// <param name="columnMapper">Provides column mappings between source DataSet and this table.</param>
/// <param name="keyMapper">Provides key mapping between source DataSet and this table.</param>
/// <param name="ct">The async cancellation token.</param>
/// <returns>Number of rows updated.</returns>
public Task <int> UpdateAsync <TSource>(DataSet <TSource> source, Action <ColumnMapper, TSource, T> columnMapper, Func <TSource, T, KeyMapping> keyMapper, CancellationToken ct = default(CancellationToken))
where TSource : class, IEntity, new()
{
Verify(source, nameof(source));
if (source.Count == 1)
{
return(UpdateAsync(source, 0, columnMapper, keyMapper, ct));
}
Verify(columnMapper, nameof(columnMapper));
var targetKey = Verify(keyMapper, nameof(keyMapper), source._).TargetKey;
return(DbTableUpdate <T> .ExecuteAsync(this, source, columnMapper, targetKey, ct));
}
/// <summary>
/// Updates subset of records with specified values.
/// </summary>
/// <param name="columnMapper">Provides column mappings between value and column in this table.</param>
/// <param name="where">The condition to filter the records.</param>
/// <param name="ct">The async cancellation token.</param>
/// <returns>Number of rows updated.</returns>
public Task <int> UpdateAsync(Action <ColumnMapper, T> columnMapper, Func <T, _Boolean> where, CancellationToken ct = default(CancellationToken))
{
var columnMappings = Verify(columnMapper, nameof(columnMapper));
return(DbTableUpdate <T> .ExecuteAsync(this, columnMappings, where, ct));
}