No exact solution exists There is no isometric map from the sphere to the plane. When you convert lat/lon coordinates from the sphere to x/y coordinates in the plane, you cannot hope that all lengths will be preserved by this operation. You have to accept some kind of deformation. Many different map projections do exist, … Read more
Use array_merge_recursive : Convert all numeric key to strings, (make is associative array) $result = array_merge_recursive($ar1, $ar2); print_r($result); See live demo here
You need to implement your own IUserType. See this blog post for details. I’ll also paste the relevant section below in case the blog disappears. In NHibernate, a custom mapping type is a class that derives from either the IUserType or ICompositeUserType interfaces. These interfaces contain several methods that must be implemented, but for our … Read more
I believe, it is not possible to define the relationship only with data attributes. The problem is that EF’s mapping conventions assume that Creator and Modifier are the two ends of one and the same relationship but cannot determine what the principal and what the dependent of this association is. As far as I can … Read more
It is theoretically correct but SQL server (not Entity framework) doesn’t like it because your model allows single employee to be a member of both First and Second team. If the Team is deleted this will cause multiple delete paths to the same Employee entity. This cannot be used together with cascade deletes which are … Read more
Building off of @Anon’s suggestion: # Drive letter: M # Shared drive path: \\shared\folder # Username: user123 # Password: password import subprocess # Disconnect anything on M subprocess.call(r’net use m: /del’, shell=True) # Connect to shared drive, use drive letter M subprocess.call(r’net use m: \\shared\folder /user:user123 password’, shell=True) I prefer this simple approach, especially if … Read more
Have you considered creating a shared interface between the DTO and the Entity? You should not tightly couple your ORM to the rest of your application. Or in fact use anything other than interfaces between them if at all possible. You could, in theory, have a separate project that just holds the contract/abstractions of what … Read more
You can declare unique constraints using the @Table(uniqueConstraints = …) annotation in your entity class, i.e. @Entity @Table(uniqueConstraints={ @UniqueConstraint(columnNames = {“productId”, “serial”}) }) public class InventoryItem { … } Note that this does not magically create the unique constraint in the database, you still need a DDL for it to be created. But seems like … Read more
This also seems to work for me: Mapper.CreateMap<PersonDto, Address>(); Mapper.CreateMap<PersonDto, Person>() .ForMember(dest => dest.Address, opt => opt.MapFrom( src => src ))); Basically, create a mapping from the dto to both objects, and then use it as the source for the child object.
You must make your foreign key nullable: public class User { public int Id { get; set; } public int? CountryId { get; set; } public virtual Country Country { get; set; } }