/// <summary>
/// Returns a value indicating whether the day exists.
/// </summary>
/// <param name="id">The identifier.</param>
/// <param name="ctx">The entity container.</param>
/// <returns>The day exists.</returns>
public bool DayExists(Guid id, BzsEntityContainer ctx)
{
return ctx.DaySet.Any(f => f.Id == id);
}
/// <summary>
/// Returns a value indicating whether the room exists.
/// </summary>
/// <param name="id">The identifier.</param>
/// <param name="ctx">The entity container.</param>
/// <returns>The room exists.</returns>
public bool RoomExists(Guid id, BzsEntityContainer ctx)
{
return ctx.RoomSet.Any(f => f.Id == id);
}
/// <summary>
/// Returns a value indicating whether the teacher exists.
/// </summary>
/// <param name="id">The identifier.</param>
/// <param name="ctx">The entity container.</param>
/// <returns>The teacher exists.</returns>
public bool TeacherExists(Guid id, BzsEntityContainer ctx)
{
return ctx.TeacherSet.Any(f => f.Id == id);
}