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Find .dxf entity based on handle with EZDXF library


By : user6111892
Date : July 31 2020, 07:00 PM
it should still fix some issue ezdxf stores all entities of a DXF document in the entity database by their handle as key:
code :
doc = ezdxf.new()
msp = doc.modelspace()
p = msp.add_point((0, 0))
p1 = doc.entitydb[p.dxf.handle]
assert p1 is p
p2 = doc.entitydb.get(p.dxf.handle)
assert p2 is p
assert doc.entitydb.get('ABBA') is None


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NHibernate: how to handle entity-based validation using session-per-request pattern, without controllers knowing about I


By : 0ddfell0w
Date : March 29 2020, 07:55 AM
I hope this helps you . Option 1 without a doubt. It's not counter intuitive, it's how NH works. Objects retrieved using NH are persistent and changes will be saved when the session is flushed. Calling Evict makes the object transient which is exactly the behavior you want.
You don't mention it but another option might be to use Manual or Commit FlushMode.

how to handle entity manager can not find an object instance case?


By : M.Eng
Date : March 29 2020, 07:55 AM
seems to work fine You can check if an entity is managed (within the persistence context) with help of the contains method of your EntityManager

how to find length of entity from dxf file using dxfgrabber or ezdxf packages


By : Benji
Date : March 29 2020, 07:55 AM
should help you out dxfgrabber and ezdxf are just interfaces to the DXF format and do not provide any kind of CAD or calculation functions, and the geometrical length of DXF entities are not available attributes in the DXF format.

Entity Framework 7 (core) Find entity based on composite key?


By : rig
Date : March 29 2020, 07:55 AM
I wish this help you Usually I use a Context with DBSets of the entities. Then I can do something like:
code :
 _context.Cars.Where(c => c.State != null && c.LicensePlate != null).ToList(); 

How do i create a class library proejct to handle my migrations and database objects in entity framework core 2.2?


By : user3055485
Date : March 29 2020, 07:55 AM
should help you out I have created a .net core 2.2 web mvc application. I then created a .net core 2.2 class library to contain all my database models. When attempting to run the initial migration i get the error cannot create object of type 'X'. , Solved, I needed to add the line:
code :
services.AddDbContext<ProjectWalesDbContext>(item => item.UseSqlServer(Configuration.GetConnectionString("DefaultConnection")));
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