/// <summary>
/// Create a new Meeting object.
/// </summary>
/// <param name="meetingId">Initial value of the MeetingId property.</param>
/// <param name="start">Initial value of the Start property.</param>
/// <param name="end">Initial value of the End property.</param>
/// <param name="title">Initial value of the Title property.</param>
/// <param name="location">Initial value of the Location property.</param>
/// <param name="minimumAttendees">Initial value of the MinimumAttendees property.</param>
/// <param name="maximumAttendees">Initial value of the MaximumAttendees property.</param>
public static Meeting CreateMeeting(global::System.Int32 meetingId, global::System.DateTime start, global::System.DateTime end, global::System.String title, global::System.String location, global::System.Int16 minimumAttendees, global::System.Int16 maximumAttendees)
{
Meeting meeting = new Meeting();
meeting.MeetingId = meetingId;
meeting.Start = start;
meeting.End = end;
meeting.Title = title;
meeting.Location = location;
meeting.MinimumAttendees = minimumAttendees;
meeting.MaximumAttendees = maximumAttendees;
return meeting;
}
public static ValidationResult PreventDoubleBooking(Meeting meeting, ValidationContext validationContext)
{
if (validationContext.Items.ContainsKey("AllowOverBooking"))
{
bool allowOverBooking = (bool)validationContext.Items["AllowOverBooking"];
if (!allowOverBooking)
{
var meetingData = validationContext.GetService(typeof(IMeetingDataProvider))
as IMeetingDataProvider;
if (meetingData != null)
{
var conflicts = from other in meetingData.Meetings.Except(new[] { meeting })
where other.Location == meeting.Location
// Check for conflicts by seeing if the times overlap in any way
&& (
(other.Start >= meeting.Start && other.Start <= meeting.End) ||
(meeting.Start >= other.Start && meeting.Start <= other.End) ||
(other.End >= meeting.Start && other.End <= meeting.End) ||
(meeting.End >= other.Start && meeting.End <= other.End)
)
select other;
if (conflicts.Any())
{
return new ValidationResult(
"The location selected is already booked at this time.",
new[] { "Location", "Start", "End" });
}
}
}
}
return ValidationResult.Success;
}
/// <summary>
/// Deprecated Method for adding a new object to the Meetings EntitySet. Consider using the .Add method of the associated ObjectSet<T> property instead.
/// </summary>
public void AddToMeetings(Meeting meeting)
{
base.AddObject("Meetings", meeting);
}
/// <summary>
/// Ensure that long meetings don't include too many attendees.
/// </summary>
/// <param name="meeting">The meeting to validate.</param>
/// <returns>
/// A <see cref="ValidationResult"/> with an error or <see cref="ValidationResult.Success"/>.
/// </returns>
public static ValidationResult PreventExpensiveMeetings(Meeting meeting)
{
TimeSpan duration = meeting.End - meeting.Start;
int attendees = (meeting.MaximumAttendees + meeting.MinimumAttendees) / 2;
int cost = attendees * 50 * duration.Hours;
if (cost > 10000)
{
return new ValidationResult("Meetings cannot cost the company more than $10,000.");
}
return ValidationResult.Success;
}
