我正在寻找使用NHibernate和FluentNHibernate创建database
和tables
的方法。
我怎么能这样做?
尝试。
private static ISessionFactory createConnection()
{
if (session != null)
return session;
//database configs
FluentConfiguration _config = Fluently.Configure().Database(
MySQLConfiguration.Standard.ConnectionString(
x => x.Server(HOST).
Username(USER).
Password(PASSWORD).
Database(DB)
))
.Mappings(m => m.FluentMappings.AddFromAssemblyOf<PerfilMap>())
.Mappings(m => m.FluentMappings.AddFromAssemblyOf<ModuloMap>())
.Mappings(m => m.FluentMappings.AddFromAssemblyOf<PermissaoMap>())
.Mappings(m => m.FluentMappings.AddFromAssemblyOf<UsuarioMap>())
.Mappings(m => m.FluentMappings.AddFromAssemblyOf<CategoriaMap>())
.Mappings(m => m.FluentMappings.AddFromAssemblyOf<SubcategoriaMap> ())
.ExposeConfiguration(cfg => new SchemaUpdate(cfg).Execute(false, true));
session = _config.BuildSessionFactory();
return session;
}
答案 0 :(得分:5)
NHibernate和FNH都不会自己创建数据库。您必须自己提供代码或预先创建的数据库。但它可以为您创建表格。这样做的是调用SchemaExport
。在Fluent中,它看起来像这样:
var sessionFactory = Fluently.Configure()
.Database(/* ... */)
.Mappings(/* ... */)
.ExposeConfiguration(cfg => new SchemaExport(cfg).Execute(true, true, false))
.BuildSessionFactory();
从this SO question无耻地复制。
答案 1 :(得分:3)
我会举个例子: 您创建了3个类:Genre.cs,GenreMap.cs和NHibernateHelper.cs 在Genre.cs中你会发现:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
namespace TelerikMvcApp1.Models
{
public class Genre
{
public virtual int GenreId { get; set; }
public virtual string Name { get; set; }
public virtual string Description { get; set; }
}
}
在GenreMap.cs中,您会发现:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using FluentNHibernate.Mapping;
namespace TelerikMvcApp1.Models
{
public class GenreMap : ClassMap <Genre>
{
public GenreMap()
{
Id(x => x.GenreId).Column("Id");
Map(x => x.Name);
Map(x => x.Description);
Table("Genres");
}
}
}
并在NHibernateHelper.cs中找到:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using FluentNHibernate;
using NHibernate;
using Npgsql;
using FluentNHibernate.Cfg;
using FluentNHibernate.Cfg.Db;
using NHibernate.Tool.hbm2ddl;
namespace TelerikMvcApp1.Models
{
public class NHibernateHelper
{
public static ISession OpenSession()
{
ISessionFactory sessionFactory = Fluently
.Configure()
.Database(PostgreSQLConfiguration.PostgreSQL81
.ConnectionString(c => c.Is("Server=localhost;Port=5432;Database=/*your db name*/;User Id=/*your id*/;Password= /*your passwoed*/;"))
.ShowSql())
.Mappings(m => m.FluentMappings.AddFromAssemblyOf<GenreMap>())
.ExposeConfiguration(cfg => new SchemaExport(cfg).Create(true, true))
.BuildSessionFactory();
return sessionFactory.OpenSession();
}
}
}
并且忘记指定正确的数据库ID和密码 最后,您可以转到您的控制器并将Index方法放在这样:
public ActionResult Index()
{
using (ISession session = NHibernateHelper.OpenSession())
{
var persons = session.Query<Genre>().ToList();
return View(persons);
}
}