/// <summary>
/// Get the first parcel this building is located on.
/// </summary>
/// <param name="building"></param>
/// <returns></returns>
public static int?GetParcelId(this Entity.Building building)
{
return(building.Parcels.FirstOrDefault()?.ParcelId);
}
/// <summary>
/// Make a query to determine if the building names are unique.
/// - No two buildings should have the same name on a parcel.
/// </summary>
/// <param name="context"></param>
/// <param name="parcel"></param>
/// <param name="building"></param>
/// <exception type="DbUpdateException">The name within a parcel should be unique.</exception>
public static void ThrowIfNotUnique(this PimsContext context, Entity.Parcel parcel, Entity.Building building)
{
if (parcel == null || String.IsNullOrEmpty(building.Name))
{
return;
}
var parcelBuildings = context.Parcels.Where(p => p.Id == parcel.Id).SelectMany(p => p.Buildings).Where(b => b.BuildingId != building.Id).Select(b => b.Building.Name).Distinct().ToArray();
var alreadyExists = parcelBuildings.Contains(building.Name);
if (alreadyExists)
{
throw new DbUpdateException("A building name must be unique on the parcel.");
}
}
/// <summary>
/// Get the building preduminate use name.
/// </summary>
/// <param name="building"></param>
/// <returns></returns>
public static string GetPredominateUse(this Entity.Building building)
{
return(building.BuildingPredominateUse?.Name);
}
/// <summary>
/// Get the building occupant type name.
/// </summary>
/// <param name="building"></param>
/// <returns></returns>
public static string GetOccupantType(this Entity.Building building)
{
return(building.BuildingOccupantType?.Name);
}
/// <summary>
/// Get the building construction type name.
/// </summary>
/// <param name="building"></param>
/// <returns></returns>
public static string GetConstructionType(this Entity.Building building)
{
return(building.BuildingConstructionType?.Name);
}
/// <summary>
/// Get a building zoning potential
/// </summary>
/// <param name="building"></param>
/// <returns></returns>
public static string[] GetZoningPotential(this Entity.Building building)
{
return(building.Parcels.Select(p => p.Parcel.ZoningPotential).Where(s => !String.IsNullOrWhiteSpace(s)).ToArray());
}