public static void AddOrUpdate(this Microsoft.EntityFrameworkCore.DbContext ctx, IEnumerable <object> entityList)
{
foreach (var entry in entityList)
{
AddOrUpdate(ctx, entry);
}
}
public static void AddOrUpdate(this Microsoft.EntityFrameworkCore.DbContext ctx, object entity)
{
var entry = ctx.Entry(entity);
switch (entry.State)
{
case EntityState.Detached:
ctx.Add(entity);
break;
case EntityState.Modified:
ctx.Update(entity);
break;
case EntityState.Added:
ctx.Add(entity);
break;
case EntityState.Unchanged:
//item already in db no need to do anything
break;
default:
throw new ArgumentOutOfRangeException();
}
}
/// <summary>
/// 根据sql语句查询并返回动态列表
/// </summary>
/// <param name="db"></param>
/// <param name="sql"></param>
/// <returns></returns>
public static List <dynamic> GetFromSql(this Microsoft.EntityFrameworkCore.DbContext db, string sql)
{
var conn = db.Database.GetDbConnection();
var cmd = conn.CreateCommand();
cmd.CommandText = sql;
conn.Open();
var list = new List <dynamic>();
var reader = cmd.ExecuteReader();
if (reader.HasRows)
{
var columns = new string[reader.FieldCount];
for (var i = 0; i < reader.FieldCount; i++)
{
columns[i] = reader.GetName(i);
}
while (reader.Read())
{
dynamic model = new ExpandoObject();
var dict = (IDictionary <string, object>)model;
for (var i = 0; i < reader.FieldCount; i++)
{
dict[columns[i]] = reader[i];
}
if (dict.Count > 0)
{
list.Add(model);
}
}
}
conn.Close();
return(list);
}
public HomeController(ILogger <HomeController> logger, TestDBContext _dbt)
{
_logger = logger;
dbt = _dbt;
//cfg = _cfg;
_TestDBContext = (TestDBContext)_dbt;
}
private static void WritePerf(Microsoft.EntityFrameworkCore.DbContext dbContext)
{
var trackingCount = dbContext.ChangeTracker.Entries().Count();
var mem = GC.GetTotalMemory(true) / 1024 / 1024;
Console.WriteLine($"\t {trackingCount} ChangeTracker Entries. Total Memory after GC: {mem}mb");
Console.WriteLine();
}
protected internal Repository(Microsoft.EntityFrameworkCore.DbContext databaseContext) : base()
{
DatabaseContext =
databaseContext ??
throw new System.ArgumentNullException(paramName: nameof(databaseContext));
DbSet = DatabaseContext.Set <T>();
}
public EFRepository(Microsoft.EntityFrameworkCore.DbContext dbContext)
{
if (dbContext == null)
{
throw new ArgumentNullException("dbContext");
}
DbContext = dbContext;
DbSet = DbContext.Set <T>();
}
public EfRepository(Microsoft.EntityFrameworkCore.DbContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
_context = context;
_set = _context.Set <TEnity>();
}
public static bool InitialMigrationApplied(this Microsoft.EntityFrameworkCore.DbContext context)
{
var allAppliedMigrations = context.GetService <IHistoryRepository>()
.GetAppliedMigrations()
.Select(x => x.MigrationId)
.ToArray();
return(allAppliedMigrations.Any(x => x.EndsWith(InitialMigrationId)) &&
!allAppliedMigrations.Contains(SeedInitialDataMigrationId));
}
public LogEventHandler(
UserProvider userAcessor,
IServiceProvider serviceProvider,
DbContextProvider dbContext,
IEnumerable <IgnoredEntity> listaNegras)
{
this.userAcessor = userAcessor(serviceProvider);
this.dbContext = dbContext(serviceProvider);
this.listaNegras = listaNegras;
this.LogType = typeof(EventLog).Name;
}
private static bool AllMigrationsApplied(this Microsoft.EntityFrameworkCore.DbContext context)
{
var applied = context.GetService <IHistoryRepository>()
.GetAppliedMigrations()
.Select(m => m.MigrationId);
var total = context.GetService <IMigrationsAssembly>()
.Migrations
.Select(m => m.Key);
return(!total.Except(applied).Any());
}
/// <summary>
/// Auto initialize or update currently date time for any class based on class ModelBase
/// </summary>
public static void AddAuditInfo(this Microsoft.EntityFrameworkCore.DbContext dbContext)
{
var entries = dbContext.ChangeTracker.Entries().Where(e =>
e.Entity is ModelBase && (e.State is EntityState.Added || e.State is EntityState.Modified));
foreach (var entry in entries)
{
if (entry.State is EntityState.Added)
{
((ModelBase)entry.Entity).CreatedAt = DateTime.UtcNow;
}
((ModelBase)entry.Entity).UpdatedAt = DateTime.UtcNow;
}
}
private static void TurnOnSnapshotIsolation(Microsoft.EntityFrameworkCore.DbContext context)
{
var conn = context.Database.GetDbConnection();
var providerName = conn.GetType().Name;
if (providerName != "SqlConnection")
{
return;
}
conn.Open();
context.Database.ExecuteSqlCommand(
$"ALTER DATABASE CURRENT SET ALLOW_SNAPSHOT_ISOLATION ON;ALTER DATABASE CURRENT SET READ_COMMITTED_SNAPSHOT ON; ");
conn.Close();
}
public static DataSet GetQueryDatatable(this Microsoft.EntityFrameworkCore.DbContext context, string sqlQuery, SqlParameter[] sqlParam = null, CommandType type = CommandType.StoredProcedure)
{
using (DbCommand cmd = context.Database.GetDbConnection().CreateCommand())
{
cmd.Connection = context.Database.GetDbConnection();
cmd.CommandType = type;
if (sqlParam != null)
{
cmd.Parameters.AddRange(sqlParam);
}
cmd.CommandText = sqlQuery;
using (DbDataAdapter dataAdapter = new SqlDataAdapter())
{
dataAdapter.SelectCommand = cmd;
DataSet ds = new DataSet();
dataAdapter.Fill(ds);
return(ds);
}
}
}
public static void Configure(this Microsoft.EntityFrameworkCore.DbContext context, DbContextOptionsBuilder optionsBuilder, string connectionStringName)
{
var conn = DataConfigurationSettings.Instance.Connections.FirstOrDefault(x => x.Name.IsEqual(connectionStringName));
if (conn == null)
{
throw new ArgumentException($"Can not find connection with name '{connectionStringName}'", "connectionName");
}
switch (DataConfigurationSettings.Instance.StoreType)
{
case DataStoreType.SqlServer:
optionsBuilder.UseSqlServer(conn.Value);
break;
case DataStoreType.PostgreSql:
optionsBuilder.UseNpgsql(conn.Value);
break;
}
}
public TruncateHandler(Microsoft.EntityFrameworkCore.DbContext dbContext)
{
_dbContext = dbContext ?? throw new ArgumentNullException(nameof(dbContext));
}
public BaseRepository(Microsoft.EntityFrameworkCore.DbContext context)
{
Context = context;
Entities = Context.Set <TEntity>();
}
public Repository(Microsoft.EntityFrameworkCore.DbContext context)
{
}
public GenericRepository(DbContext context)
{
this.Context = context;
this.DbSet = context.Set <TE>();
}
public CouponsRepository(Microsoft.EntityFrameworkCore.DbContext dbContext)
{
_context = dbContext;
_coupons = _context.Set <Coupon>();
}
/// <summary>
/// Gets the entity metadata for specified db ctx;
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="dbCtx"></param>
/// <param name="obj"></param>
/// <returns></returns>
private static Microsoft.EntityFrameworkCore.Metadata.IEntityType GetEntityMetadata <T>(this Microsoft.EntityFrameworkCore.DbContext dbCtx, T obj)
{
//var type = typeof(T);
var type = obj.GetType();
//do a cache loolup first
if (EntitiesMetadataCache.ContainsKey(dbCtx) && EntitiesMetadataCache[dbCtx] != null &&
EntitiesMetadataCache[dbCtx].ContainsKey(type))
{
return(EntitiesMetadataCache[dbCtx][type]);
}
var mapping = dbCtx.Model.FindEntityType(type);
//cache the results
if (!EntitiesMetadataCache.ContainsKey(dbCtx))
{
EntitiesMetadataCache[dbCtx] = new Dictionary <Type, Microsoft.EntityFrameworkCore.Metadata.IEntityType>();
}
EntitiesMetadataCache[dbCtx].Add(type, mapping);
return(mapping);
}
/// <summary>
/// Gets a mapped column name
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="dbCtx"></param>
/// <param name="obj"></param>
/// <param name="propertyName"></param>
/// <returns></returns>
public static string GetTableColumnName <T>(this Microsoft.EntityFrameworkCore.DbContext dbCtx, T obj, string propertyName)
{
var metaData = dbCtx.GetEntityMetadata(obj);
return(metaData.GetProperties().FirstOrDefault(p => p.Name == propertyName)?.GetColumnName());
}
public ProductRepository(Microsoft.EntityFrameworkCore.DbContext db) : base(db)
{
this.db = (ShopApplicationDbContext)db;
}
public GenericRepository(Microsoft.EntityFrameworkCore.DbContext context)
{
this.Context = context;
this.DbSet = context.Set <T>();
}
public BaseRepository(AppDbContext appDbContext)
{
this.dbContext = appDbContext ?? throw new ArgumentNullException("dbContext can not be null.");
this.dbSet = appDbContext.Set <TEntity>();
}
public Repository(CoreDbContext prandoDbContext)
{
_prandoDbContext = prandoDbContext;
}
public BookingsRepository(Microsoft.EntityFrameworkCore.DbContext context) : base(context)
{
}
public SalesDetailsRepository(Microsoft.EntityFrameworkCore.DbContext db) : base(db)
{
this.db = db;
}
public Repository(Microsoft.EntityFrameworkCore.DbContext dataContext)
{
DbSet = dataContext.Set <T>();
}
public UserRepository(Microsoft.EntityFrameworkCore.DbContext dbContext) : base(dbContext)
{
_dbContext = dbContext;
}
