public static void Initialize(PropertiesContext context)
{
context.Database.EnsureCreated();
// Look for any Property.
if (context.Property.Any())
{
return; // DB has been seeded
}
var properties = new Property[]
{
new Property {
Name = "Chief Joseph", AddressLine1 = "2025, NE Terre View, Pullman, WA, 99163", AddressLine2 = "C26",
SpacesAvailable = 10, TotalSpaces = 350, Rent = 1200, Owner = new Landlord()
{
FirstName = "WSU"
}, Description = "Nice college apartments"
},
new Property {
Name = "Columbia", AddressLine1 = "Blah Blah", AddressLine2 = "C26",
SpacesAvailable = 15, TotalSpaces = 350, Rent = 1050, Owner = new Landlord()
{
FirstName = "WSU"
}, Description = "Okay college apartments"
},
};
}
/// <summary>
/// Method to add property
/// </summary>
/// <param name="property">Property to add</param>
public async Task <bool> AddProperty(Property newProperty, PropertiesContext context)
{
// Cannot have no name.
if (newProperty.Name == null || newProperty.Name == string.Empty)
{
return(false);
}
// Cannot have empty address.
if (newProperty.AddressLine1 == null || newProperty.AddressLine1 == string.Empty)
{
return(false);
}
// Rent cannot be negative or more than max integer.
if (newProperty.Rent <= -1 || newProperty.Rent > 10000000)
{
return(false);
}
// ID cannot be negative or more than max integer.
if (newProperty.ID <= -1 || newProperty.ID > 10000000)
{
return(false);
}
// Spaces available cannot be negative or more than max integer.
if (newProperty.SpacesAvailable <= -1 || newProperty.SpacesAvailable > 10000000)
{
return(false);
}
// Total spaces cannot be negative or more than max integer.
if (newProperty.TotalSpaces <= -1 || newProperty.TotalSpaces > 10000000)
{
return(false);
}
// Available spaces cannot be greater than total spaces, since that won't make sense.
if (newProperty.SpacesAvailable > newProperty.TotalSpaces)
{
newProperty.SpacesAvailable = newProperty.TotalSpaces;
}
// Check if we already contain property with given name or the address.
if (context.Property.Any(e => ((e.ID == newProperty.ID) || (e.Name == newProperty.Name) || (e.AddressLine1 == newProperty.AddressLine1))))
{
return(false);
}
else
{
context.Property.Add(newProperty);
await context.SaveChangesAsync();
return(true);
}
}
/// <summary>
/// Method to delete property
/// </summary>
/// <param name="property">property to delete</param>
public async Task <bool> DeleteProperty(Property property, PropertiesContext context)
{
if (property != null)
{
context.Property.Remove(property);
await context.SaveChangesAsync();
return(true);
}
return(false);
}
/// <summary>
/// Method to edit the property
/// </summary>
/// <param name="property">property landlord wants to manage.</param>
public async Task <bool> ManageProperties(Property newProperty, PropertiesContext context)
{
// Cannot have no name.
if (newProperty.Name == null || newProperty.Name == string.Empty)
{
return(false);
}
// Cannot have empty address.
if (newProperty.AddressLine1 == null || newProperty.AddressLine1 == string.Empty)
{
return(false);
}
// Rent cannot be negative or more than max integer.
if (newProperty.Rent <= -1 || newProperty.Rent > 10000000)
{
return(false);
}
// ID cannot be negative or more than max integer.
if (newProperty.ID <= -1 || newProperty.ID > 10000000)
{
return(false);
}
// Spaces available cannot be negative or more than max integer.
if (newProperty.SpacesAvailable <= -1 || newProperty.SpacesAvailable > 10000000)
{
return(false);
}
// Total spaces cannot be negative or more than max integer.
if (newProperty.TotalSpaces <= -1 || newProperty.TotalSpaces > 10000000)
{
return(false);
}
// Available spaces cannot be greater than total spaces, since that won't make sense.
if (newProperty.SpacesAvailable > newProperty.TotalSpaces)
{
newProperty.SpacesAvailable = newProperty.TotalSpaces;
}
// Check if we already contain property with given name or the address. But avoid comparing to itself.
if (context.Property.Any(e => ((e.ID != newProperty.ID) && ((e.Name == newProperty.Name) || (e.AddressLine1 == newProperty.AddressLine1)))))
{
return(false);
}
context.Attach(newProperty).State = EntityState.Modified;
try
{
await context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (context.Property.Any(e => e.ID == newProperty.ID))
{
}
else
{
throw;
}
return(false);
}
return(true);
}
