XdCxRhDW/XdCxRhDW.Repostory/EFContext/RHDWContext.cs

using SQLite.CodeFirst;
using System;
using System.Data.Common;
using System.Data.Entity;
using System.Data.Entity.Core.Common;
using System.Data.Entity.Infrastructure.Interception;
using System.Data.Entity.ModelConfiguration.Conventions;
using System.Data.SQLite;
using System.Data.SQLite.EF6;
using System.IO;
using System.Text.RegularExpressions;
using XdCxRhDW.Entity;

namespace XdCxRhDW.Repostory
{

    /// <summary>
    /// 基础表上下文(id为int)
    /// </summary>
    public class RHDWContext : DbContext
    {
        public RHDWContext() : base("DbCon") //配置使用的连接名
        {

        }

        protected override void OnModelCreating(DbModelBuilder modelBuilder)
        {
            this.Database.Log = msg =>
            {
            };
            modelBuilder.Conventions.Remove<PluralizingTableNameConvention>();
            modelBuilder.Configurations.AddFromAssembly(typeof(RHDWContext).Assembly);//自动加载Entity-Type
            var sqliteConnectionInitializer = new SqliteCreateDatabaseIfNotExists<RHDWContext>(modelBuilder);
            Database.SetInitializer(sqliteConnectionInitializer);
            base.OnModelCreating(modelBuilder);
        }
        public DbSet<XlInfo> XlInfos { set; get; }

        public DbSet<TaskInfo> TaskInfos { set; get; }

        public DbSet<TxInfo> TxInfos { get; set; }

        public DbSet<SatInfo> SatInfos { get; set; }

        public DbSet<SigInfo> SigInfos { get; set; }

        public DbSet<SigDelay> SigDelays { get; set; }

        public DbSet<TargetInfo> TargetInfos { get; set; }

        public DbSet<SysSetings> SysSetings { get; set; }

    }

    /// <summary>
    /// 分区表上下文(id为long)
    /// </summary>
    public class RHDWPartContext : DbContext
    {
        public static RHDWPartContext GetContext(string dbFile, bool createDb = false)
        {
            if (!File.Exists(dbFile) && !createDb)
            {
                return null;
            }
            var connectionString = $@"Data Source={dbFile}";
            SQLiteConnection con = new SQLiteConnection(connectionString);
            return new RHDWPartContext(con);
        }
        public static RHDWPartContext GetContext(DateTime partTime, bool createDb = false, string prefix = "")
        {
            var dir = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "DbPart");
            var dayFile = Path.Combine(dir, $@"{partTime.Year}\{prefix}{partTime:MMdd}.db");
            if (!File.Exists(dayFile) && !createDb)
            {
                return null;
            }
            var connectionString = $@"Data Source=|DataDirectory|\DbPart\{partTime.Year}\{prefix}{partTime:MMdd}.db";
            SQLiteConnection con = new SQLiteConnection(connectionString);
            return new RHDWPartContext(con);
        }
        private RHDWPartContext(DbConnection con)
        : base(con, true)
        {
        }
        protected override void OnModelCreating(DbModelBuilder modelBuilder)
        {
            this.Database.Log = msg =>
            {
            };
            modelBuilder.Conventions.Remove<PluralizingTableNameConvention>();
            modelBuilder.Configurations.AddFromAssembly(typeof(RHDWPartContext).Assembly);
            var sqliteConnectionInitializer = new SqliteCreateDatabaseIfNotExists<RHDWPartContext>(modelBuilder);
            Database.SetInitializer(sqliteConnectionInitializer);
            base.OnModelCreating(modelBuilder);
        }

        public DbSet<StationRes> StationRes { get; set; }
        public DbSet<CxRes> CxRes { get; set; }
        public DbSet<CgRes> CgRes { get; set; }
        public DbSet<CgXgfRes> CgXgfRes { get; set; }
        public DbSet<PosRes> PosRes { get; set; }
        public DbSet<CheckRes> CheckRes { get; set; }
    }

    public class SqliteConfiguration : DbConfiguration
    {
        public SqliteConfiguration()
        {
            DbInterception.Add(new SqliteInterceptor());//拦截器
            SetProviderFactory("System.Data.SQLite", SQLiteFactory.Instance);
            SetProviderFactory("System.Data.SQLite.EF6", SQLiteProviderFactory.Instance);
            SetProviderServices("System.Data.SQLite", (DbProviderServices)SQLiteProviderFactory.Instance.GetService(typeof(DbProviderServices)));

        }
    }
}