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David Lebee 2021-09-20 10:21:48 -04:00
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Threading;
using System.Threading.Tasks;
namespace PoweredSoft.DbContext.Core
{
public static class DbContextQueryableExtensions
{
private static IQueryableExtensionService service;
public static void InitializeExtensionService(IQueryableExtensionService queryableService)
{
service = queryableService;
}
public static IQueryable<T> Include<T, TProperty>(this IQueryable<T> source, Expression<Func<T, TProperty>> path)
where T : class
=> service.Include(source, path);
public static IQueryable AsNoTracking(this IQueryable source)
=> service.AsNoTracking(source);
public static IQueryable<T> AsNoTracking<T>(this IQueryable<T> source) where T : class
=> service.AsNoTracking(source);
public static IQueryable<T> Include<T>(this IQueryable<T> source, string path)
where T : class
=> service.Include(source, path);
public static Task<T> FirstOrDefaultAsync<T>(this IQueryable<T> source,
CancellationToken cancellationToken = default) where T : class =>
service.FirstOrDefaultAsync(source, cancellationToken);
public static Task<T> FirstOrDefaultAsync<T>(this IQueryable<T> source,
Expression<Func<T, bool>> predicate,
CancellationToken cancellationToken = default) where T : class =>
service.FirstOrDefaultAsync(source, predicate, cancellationToken);
public static Task<T> FirstAsync<T>(this IQueryable<T> source,
CancellationToken cancellationToken = default) where T : class =>
service.FirstAsync(source, cancellationToken);
public static Task<T> FirstAsync<T>(this IQueryable<T> source,
Expression<Func<T, bool>> predicate,
CancellationToken cancellationToken = default) where T : class =>
service.FirstAsync(source, predicate, cancellationToken);
public static Task<bool> AnyAsync<T>(this IQueryable<T> source,
CancellationToken cancellationToken = default) where T : class =>
service.AnyAsync(source, cancellationToken);
public static Task<bool> AnyAsync<T>(this IQueryable<T> source,
Expression<Func<T, bool>> predicate,
CancellationToken cancellationToken = default) where T : class =>
service.AnyAsync(source, predicate, cancellationToken);
public static Task<List<T>> ToListAsync<T>(this IQueryable<T> source,
CancellationToken cancellationToken = default) where T : class =>
service.ToListAsync(source, cancellationToken);
}
}

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using System;
namespace PoweredSoft.DbContext.Core
{
public interface IDbContextServiceProvider
{
IDbContextService GetServiceForType<TContext>();
IDbContextService GetServiceForType(Type contextType);
}
public interface IContextServiceFactory
{
bool CanService(Type contextType);
IDbContextService Create(Type contextType);
}
}

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PoweredSoft.DbContext.Core/IDbContextQueryableExtensionService.cs Normal file
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using System.Linq;
namespace PoweredSoft.DbContext.Core
{
public interface IQueryableExtensionService : IQueryableOperationsService
{
IQueryableService ResolveService<T>(IQueryable<T> queryable);
IQueryableService ResolveService(IQueryable queryable);
}
}

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PoweredSoft.DbContext.Core/IDbContextService.cs Normal file
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using System;
using System.Collections.Generic;
using System.Linq.Expressions;
using System.Reflection;
using System.Threading.Tasks;
namespace PoweredSoft.DbContext.Core
{
public interface IDbContextService
{
IDbSetService<TEntity> Set<TEntity>() where TEntity : class;
IDbSetService Set(Type entityType);
int SaveChanges();
Task<int> SaveChangesAsync();
T GetUnderlyingOrm<T>() where T : class;
IEnumerable<PropertyInfo> GetKeyProperties(Type entityType);
IEnumerable<Expression<Func<TEntity, object>>> GetKeyProperties<TEntity>();
IDbContextTransactionService BeginTransaction();
}
}

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PoweredSoft.DbContext.Core/IDbContextTransactionService.cs Normal file
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using System;
namespace PoweredSoft.DbContext.Core
{
public interface IDbContextTransactionService : IDisposable
{
void Commit();
void Rollback();
}
}

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PoweredSoft.DbContext.Core/IDbQueryService.cs Normal file
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using System.Linq;
namespace PoweredSoft.DbContext.Core
{
public interface IDbQueryService : IOrderedQueryable
{
IDbQueryService AsNoTracking();
IDbQueryService Include(string path);
}
}

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PoweredSoft.DbContext.Core/IDbQueryService`.cs Normal file
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using System.Linq;
namespace PoweredSoft.DbContext.Core
{
public interface IDbQueryService<TEntity> : IOrderedQueryable<TEntity>, IDbQueryService
where TEntity : class
{
}
}

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PoweredSoft.DbContext.Core/IDbSetService.cs Normal file
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using System.Collections;
namespace PoweredSoft.DbContext.Core
{
public interface IDbSetService : IDbQueryService
{
IList Local { get; }
object Add(object entity);
void AddRange(IEnumerable entities);
object Remove(object entity);
void RemoveRange(IEnumerable entities);
object Find(params object[] keyValues);
object Attach(object entity);
}
}

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PoweredSoft.DbContext.Core/IDbSetService`.cs Normal file
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using System.Collections.Generic;
using System.Collections.ObjectModel;
namespace PoweredSoft.DbContext.Core
{
public interface IDbSetService<TEntity> : IDbQueryService<TEntity>, IDbSetService
where TEntity : class
{
new ICollection<TEntity> Local { get; }
TEntity Add(TEntity entity);
TEntity Remove(TEntity entity);
void AddRange(IEnumerable<TEntity> entities);
void RemoveRange(IEnumerable<TEntity> entities);
TEntity Attach(TEntity entity);
}
}

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PoweredSoft.DbContext.Core/IQueryableOperationsService.cs Normal file
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Threading;
using System.Threading.Tasks;
namespace PoweredSoft.DbContext.Core
{
public interface IQueryableOperationsService
{
IQueryable<T> Include<T, TProperty>(IQueryable<T> source, Expression<Func<T, TProperty>> path)
where T : class;
IQueryable<T> AsNoTracking<T>(IQueryable<T> source)
where T : class;
IQueryable AsNoTracking(IQueryable source);
IQueryable<T> Include<T>(IQueryable<T> source, string path)
where T : class;
Task<T> FirstOrDefaultAsync<T>(IQueryable<T> source, CancellationToken cancellationToken = default) where T : class;
Task<T> FirstOrDefaultAsync<T>(IQueryable<T> source, Expression<Func<T, bool>> predicate,
CancellationToken cancellationToken = default) where T : class;
Task<T> FirstAsync<T>(IQueryable<T> source, CancellationToken cancellationToken = default) where T : class;
Task<T> FirstAsync<T>(IQueryable<T> source, Expression<Func<T, bool>> predicate,
CancellationToken cancellationToken = default) where T : class;
Task<List<T>> ToListAsync<T>(IQueryable<T> source, CancellationToken cancellationToken = default) where T : class;
Task<bool> AnyAsync<T>(IQueryable<T> source, System.Linq.Expressions.Expression<System.Func<T, bool>> predicate, CancellationToken cancellationToken) where T : class;
Task<bool> AnyAsync<T>(IQueryable<T> source, CancellationToken cancellationToken) where T : class;
}
}

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using System.Linq;
using System.Threading;
namespace PoweredSoft.DbContext.Core
{
public interface IQueryableService : IQueryableOperationsService
{
bool CanHandle<T>(IQueryable<T> queryable);
bool CanHandle(IQueryable queryable);
}
}

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PoweredSoft.DbContext.Core/PoweredSoft.DbContext.Core.csproj Normal file
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<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<Copyright>Powered Softwares Inc.</Copyright>
<Version>1.1.0$(VersionSuffix)</Version>
<PackageIconUrl>https://secure.gravatar.com/avatar/4e32f73820c16718909a06c2927f1f8b?s=512&amp;amp;r=g&amp;amp;d=retro</PackageIconUrl>
<Product>$(MSBuildProjectName)</Product>
<Description>initial</Description>
<PackageId>$(MSBuildProjectName)</PackageId>
<PackageReleaseNotes>initial</PackageReleaseNotes>
<PackageRequireLicenseAcceptance>False</PackageRequireLicenseAcceptance>
<Company>PoweredSoft</Company>
<Authors>PoweredSoft</Authors>
<Deterministic>False</Deterministic>
</PropertyGroup>
</Project>

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PoweredSoft.DbContext.EntityFramework/DbContextService.cs Normal file
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using PoweredSoft.DbContext.Core;
using System;
using System.Collections.Generic;
using System.Linq.Expressions;
using System.Reflection;
using System.Threading.Tasks;
using System.Data.Entity;
using System.Data.Entity.Infrastructure;
using System.Data.Entity.Core.Metadata.Edm;
using System.Linq;
namespace PoweredSoft.DbContext.EntityFramework
{
public class DbContextService : IDbContextService
{
public DbContextService(System.Data.Entity.DbContext dbContext)
{
DbContext = dbContext;
}
protected System.Data.Entity.DbContext DbContext { get; }
public IDbContextTransactionService BeginTransaction()
{
return new DbContextTransactionService(DbContext.Database.BeginTransaction());
}
public IEnumerable<PropertyInfo> GetKeyProperties(Type entityType)
{
var metadata = ((IObjectContextAdapter)DbContext).ObjectContext.MetadataWorkspace;
// Get the mapping between CLR types and metadata OSpace
var objectItemCollection = ((ObjectItemCollection)metadata.GetItemCollection(DataSpace.OSpace));
// Get metadata for given CLR type
var entityMetadata = metadata
.GetItems<EntityType>(DataSpace.OSpace)
.Single(e => objectItemCollection.GetClrType(e) == entityType);
var ret = entityMetadata.KeyProperties.Select(t => entityType.GetProperty(t.Name));
return ret;
}
public IEnumerable<Expression<Func<TEntity, object>>> GetKeyProperties<TEntity>()
{
var keyProps = GetKeyProperties(typeof(TEntity));
var parameter = Expression.Parameter(typeof(TEntity));
var result = keyProps
.Select(keyProp =>
{
var property = Expression.Property(parameter, keyProp);
var lambda = Expression.Lambda<Func<TEntity, object>>(Expression.Convert(property, typeof(Object)), parameter);
return (Expression<Func<TEntity, object>>)lambda;
})
.ToList();
return result;
}
public T GetUnderlyingOrm<T>() where T : class
{
return this.DbContext as T;
}
public int SaveChanges()
{
return DbContext.SaveChanges();
}
public Task<int> SaveChangesAsync()
{
return DbContext.SaveChangesAsync();
}
public IDbSetService<TEntity> Set<TEntity>() where TEntity : class
{
var realDbSet = DbContext.Set<TEntity>();
var dbSet = new DbSetService<TEntity>(realDbSet);
return dbSet;
}
public IDbSetService Set(Type entityType)
{
var realDbSet = DbContext.Set(entityType);
var dbSet = new DbSetService(realDbSet);
return dbSet;
}
}
}

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using PoweredSoft.DbContext.Core;
using System;
using System.Collections.Generic;
using System.Text;
namespace PoweredSoft.DbContext.EntityFramework
{
public class DbContextTransactionService : IDbContextTransactionService
{
private readonly System.Data.Entity.DbContextTransaction dbContextTransaction;
public DbContextTransactionService(System.Data.Entity.DbContextTransaction dbContextTransaction)
{
this.dbContextTransaction = dbContextTransaction;
}
public void Commit() => dbContextTransaction.Commit();
public void Dispose() => dbContextTransaction.Dispose();
public void Rollback() => dbContextTransaction.Rollback();
}
}

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PoweredSoft.DbContext.EntityFramework/DbQueryService.cs Normal file
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using PoweredSoft.DbContext.Core;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data.Entity.Infrastructure;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
namespace PoweredSoft.DbContext.EntityFramework
{
public class DbQueryService : IDbQueryService
{
public DbQueryService(DbQuery dbQuery)
{
DbQuery = dbQuery;
}
public Expression Expression => ((IQueryable)DbQuery).Expression;
public Type ElementType => ((IQueryable)DbQuery).ElementType;
public IQueryProvider Provider => ((IQueryable)DbQuery).Provider;
protected DbQuery DbQuery { get; }
public IDbQueryService AsNoTracking()
{
var efQuery = DbQuery.AsNoTracking();
var ret = new DbQueryService(efQuery);
return ret;
}
public IEnumerator GetEnumerator() => ((IQueryable)DbQuery).GetEnumerator();
public IDbQueryService Include(string path)
{
var efQuery = DbQuery.Include(path);
var ret = new DbQueryService(efQuery);
return ret;
}
}
}

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using PoweredSoft.DbContext.Core;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data.Entity.Infrastructure;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
namespace PoweredSoft.DbContext.EntityFramework
{
public class DbQueryService<TEntity> : IDbQueryService<TEntity>
where TEntity : class
{
public DbQueryService(DbQuery<TEntity> dbQuery)
{
DbQuery = dbQuery;
}
public Expression Expression => ((IQueryable<TEntity>)DbQuery).Expression;
public Type ElementType => ((IQueryable<TEntity>)DbQuery).ElementType;
public IQueryProvider Provider => ((IQueryable<TEntity>)DbQuery).Provider;
protected DbQuery<TEntity> DbQuery { get; }
public IDbQueryService<TEntity> AsNoTracking()
{
var efQuery = DbQuery.AsNoTracking();
var ret = new DbQueryService<TEntity>(efQuery);
return ret;
}
public IEnumerator GetEnumerator() => ((IQueryable<TEntity>)DbQuery).GetEnumerator();
public IDbQueryService<TEntity> Include(string path)
{
var efQuery = DbQuery.Include(path);
var ret = new DbQueryService<TEntity>(efQuery);
return ret;
}
IDbQueryService IDbQueryService.AsNoTracking()
{
var efQuery = DbQuery.AsNoTracking();
var ret = new DbQueryService<TEntity>(efQuery);
return ret;
}
IEnumerator<TEntity> IEnumerable<TEntity>.GetEnumerator() => ((IQueryable<TEntity>)DbQuery).GetEnumerator();
IDbQueryService IDbQueryService.Include(string path)
{
var efQuery = DbQuery.Include(path);
var ret = new DbQueryService<TEntity>(efQuery);
return ret;
}
}
}

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PoweredSoft.DbContext.EntityFramework/DbSetService.cs Normal file
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using PoweredSoft.DbContext.Core;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data.Entity;
using System.Text;
namespace PoweredSoft.DbContext.EntityFramework
{
public class DbSetService : DbQueryService, IDbSetService
{
protected DbSet DbSet { get; }
public DbSetService(DbSet dbSet) : base(dbSet)
{
DbSet = dbSet;
}
public IList Local => DbSet.Local;
public object Add(object entity) => DbSet.Add(entity);
public object Remove(object entity) => DbSet.Remove(entity);
public void AddRange(IEnumerable entities) => DbSet.AddRange(entities);
public void RemoveRange(IEnumerable entities) => DbSet.RemoveRange(entities);
public object Find(params object[] keyValues) => DbSet.Find(keyValues);
public object Attach(object entity) => DbSet.Attach(entity);
}
}

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using PoweredSoft.DbContext.Core;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Data.Entity;
using System.Linq;
using System.Text;
namespace PoweredSoft.DbContext.EntityFramework
{
public class DbSetService<TEntity> : DbQueryService<TEntity>, IDbSetService<TEntity>
where TEntity : class
{
public DbSetService(DbSet<TEntity> dbSet) : base(dbSet)
{
DbSet = dbSet;
}
protected DbSet<TEntity> DbSet { get; }
public ICollection<TEntity> Local => DbSet.Local;
IList IDbSetService.Local => DbSet.Local;
public TEntity Add(TEntity entity) => DbSet.Add(entity);
public TEntity Remove(TEntity entity) => DbSet.Remove(entity);
IEnumerator<TEntity> IEnumerable<TEntity>.GetEnumerator() => ((IQueryable<TEntity>)DbSet).GetEnumerator();
public TEntity Create() => DbSet.Create();
public TEntity Attach(TEntity entity) => DbSet.Attach(entity);
public DbSet<TEntity> GetEntityFrameworkSet() => DbSet;
public TEntity Find(params object[] keyValues) => DbSet.Find(keyValues);
void IDbSetService<TEntity>.AddRange(IEnumerable<TEntity> entities) => DbSet.AddRange(entities);
void IDbSetService<TEntity>.RemoveRange(IEnumerable<TEntity> entities) => DbSet.RemoveRange(entities);
public object Add(object entity) => DbSet.Add((TEntity)entity);
public void AddRange(IEnumerable entities) => DbSet.AddRange(entities.Cast<TEntity>());
public object Remove(object entity) => DbSet.Remove((TEntity)entity);
public void RemoveRange(IEnumerable entities) => DbSet.RemoveRange(entities.Cast<TEntity>());
object IDbSetService.Find(params object[] keyValues) => DbSet.Find(keyValues);
public object Attach(object entity) => DbSet.Attach((TEntity)entity);
}
}

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PoweredSoft.DbContext.EntityFramework/EntityFrameworkDbContextServiceFactory.cs Normal file
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using PoweredSoft.DbContext.Core;
using System;
using System.Collections.Generic;
using System.Text;
namespace PoweredSoft.DbContext.EntityFramework
{
public class EntityFrameworkDbContextServiceFactory : IContextServiceFactory
{
private readonly IServiceProvider serviceProvider;
public EntityFrameworkDbContextServiceFactory(IServiceProvider serviceProvider)
{
this.serviceProvider = serviceProvider;
}
public bool CanService(Type contextType)
{
return typeof(System.Data.Entity.DbContext).IsAssignableFrom(contextType);
}
public IDbContextService Create(Type contextType)
{
var service = serviceProvider.GetService(contextType) as System.Data.Entity.DbContext;
var contextService = new DbContextService(service);
return contextService;
}
}
}

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PoweredSoft.DbContext.EntityFramework/EntityFrameworkQueryableService.cs Normal file
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using PoweredSoft.DbContext.Core;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace PoweredSoft.DbContext.EntityFramework
{
public class EntityFrameworkQueryableService : IQueryableService
{
public Task<bool> AnyAsync<T>(IQueryable<T> source, Expression<Func<T, bool>> predicate, CancellationToken cancellationToken) where T : class
{
return System.Data.Entity.QueryableExtensions.AnyAsync(source, predicate, cancellationToken);
}
public Task<bool> AnyAsync<T>(IQueryable<T> source, CancellationToken cancellationToken) where T : class
{
return System.Data.Entity.QueryableExtensions.AnyAsync(source, cancellationToken);
}
public IQueryable<T> AsNoTracking<T>(IQueryable<T> source) where T : class
{
return System.Data.Entity.QueryableExtensions.AsNoTracking(source);
}
public IQueryable AsNoTracking(IQueryable source)
{
return System.Data.Entity.QueryableExtensions.AsNoTracking(source);
}
public bool CanHandle<T>(IQueryable<T> queryable)
{
return queryable.Provider is System.Data.Entity.Infrastructure.IDbAsyncQueryProvider;
}
public bool CanHandle(IQueryable queryable)
{
return queryable.Provider is System.Data.Entity.Infrastructure.IDbAsyncQueryProvider;
}
public Task<T> FirstAsync<T>(IQueryable<T> source, CancellationToken cancellationToken = default) where T : class
{
return System.Data.Entity.QueryableExtensions.FirstAsync(source, cancellationToken);
}
public Task<T> FirstAsync<T>(IQueryable<T> source, Expression<Func<T, bool>> predicate, CancellationToken cancellationToken = default) where T : class
{
return System.Data.Entity.QueryableExtensions.FirstAsync(source, predicate, cancellationToken);
}
public Task<T> FirstOrDefaultAsync<T>(IQueryable<T> source, CancellationToken cancellationToken = default) where T : class
{
return System.Data.Entity.QueryableExtensions.FirstOrDefaultAsync(source, cancellationToken);
}
public Task<T> FirstOrDefaultAsync<T>(IQueryable<T> source, Expression<Func<T, bool>> predicate, CancellationToken cancellationToken = default) where T : class
{
return System.Data.Entity.QueryableExtensions.FirstOrDefaultAsync(source, predicate, cancellationToken);
}
public IQueryable<T> Include<T, TProperty>(IQueryable<T> source, Expression<Func<T, TProperty>> path)
where T : class
{
return System.Data.Entity.QueryableExtensions.Include(source, path);
}
public IQueryable<T> Include<T>(IQueryable<T> source, string path)
where T : class
{
return System.Data.Entity.QueryableExtensions.Include(source, path);
}
public Task<List<T>> ToListAsync<T>(IQueryable<T> source, CancellationToken cancellationToken = default) where T : class
{
return System.Data.Entity.QueryableExtensions.ToListAsync(source, cancellationToken);
}
}
}

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PoweredSoft.DbContext.EntityFramework/PoweredSoft.DbContext.EntityFramework.csproj Normal file
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<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFrameworks>netstandard2.1;net461</TargetFrameworks>
<Copyright>Powered Softwares Inc.</Copyright>
<Version>1.1.0$(VersionSuffix)</Version>
<PackageIconUrl>https://secure.gravatar.com/avatar/4e32f73820c16718909a06c2927f1f8b?s=512&amp;amp;r=g&amp;amp;d=retro</PackageIconUrl>
<Product>$(MSBuildProjectName)</Product>
<Description>initial</Description>
<PackageId>$(MSBuildProjectName)</PackageId>
<PackageReleaseNotes>initial</PackageReleaseNotes>
<PackageRequireLicenseAcceptance>False</PackageRequireLicenseAcceptance>
<Company>PoweredSoft</Company>
<Authors>PoweredSoft</Authors>
<Deterministic>False</Deterministic>
<LangVersion>8.0</LangVersion>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="EntityFramework" Version="6.3.0" />
<PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="3.0.0" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\PoweredSoft.DbContext.Core\PoweredSoft.DbContext.Core.csproj" />
</ItemGroup>
</Project>

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PoweredSoft.DbContext.EntityFramework/ServiceCollectionExtensions.cs Normal file
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using Microsoft.Extensions.DependencyInjection;
using PoweredSoft.DbContext.Core;
using System;
using System.Collections.Generic;
using System.Text;
namespace PoweredSoft.DbContext.EntityFramework
{
public static class ServiceCollectionExtensions
{
public static IServiceCollection AddPoweredSoftEntityFrameworkDbContextServices(this IServiceCollection services)
{
services.AddSingleton<IQueryableService, EntityFrameworkQueryableService>();
services.AddSingleton<IContextServiceFactory, EntityFrameworkDbContextServiceFactory>();
return services;
}
}
}

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PoweredSoft.DbContext.EntityFrameworkCore/DbContextService.cs Normal file
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using PoweredSoft.DbContext.Core;
using PoweredSoft.Reflection;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Reflection;
using System.Threading.Tasks;
namespace PoweredSoft.DbContext.EntityFrameworkCore
{
public class DbContextService : IDbContextService
{
public DbContextService(Microsoft.EntityFrameworkCore.DbContext dbContext)
{
DbContext = dbContext;
}
protected Microsoft.EntityFrameworkCore.DbContext DbContext { get; }
private MethodInfo setGenericMethodInfo = null;
public IDbContextTransactionService BeginTransaction()
{
return new DbContextTransactionService(DbContext.Database.BeginTransaction());
}
public IEnumerable<PropertyInfo> GetKeyProperties(Type entityType)
{
var key = DbContext.Model.GetEntityTypes().First(t => t.ClrType == entityType).FindPrimaryKey();
var keysProperties = key.Properties.Select(t => t.PropertyInfo);
return keysProperties;
}
public IEnumerable<Expression<Func<TEntity, object>>> GetKeyProperties<TEntity>()
{
var keyProps = GetKeyProperties(typeof(TEntity));
var parameter = Expression.Parameter(typeof(TEntity));
var result = keyProps
.Select(keyProp =>
{
var property = Expression.Property(parameter, keyProp);
var lambda = Expression.Lambda<Func<TEntity, object>>(Expression.Convert(property, typeof(Object)), parameter);
return (Expression<Func<TEntity, object>>)lambda;
})
.ToList();
return result;
}
public T GetUnderlyingOrm<T>() where T : class
{
return this.DbContext as T;
}
public int SaveChanges()
{
return DbContext.SaveChanges();
}
public Task<int> SaveChangesAsync()
{
return DbContext.SaveChangesAsync();
}
[MethodKey("SetGeneric")]
public IDbSetService<TEntity> Set<TEntity>() where TEntity : class
{
var realDbSet = DbContext.Set<TEntity>();
var dbSet = new DbSetService<TEntity>(realDbSet);
return dbSet;
}
public IDbSetService Set(Type entityType)
{
if (setGenericMethodInfo == null)
setGenericMethodInfo = this.GetType().GetMethodByKey("SetGeneric", BindingFlags.Public | BindingFlags.Instance);
var method = setGenericMethodInfo.MakeGenericMethod(entityType);
var result = method.Invoke(this, new object[] { }) as IDbSetService;
return result;
}
}
}

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PoweredSoft.DbContext.EntityFrameworkCore/DbContextTransactionService.cs Normal file
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using Microsoft.EntityFrameworkCore.Storage;
using PoweredSoft.DbContext.Core;
using System;
using System.Collections.Generic;
using System.Text;
namespace PoweredSoft.DbContext.EntityFrameworkCore
{
public class DbContextTransactionService : IDbContextTransactionService
{
private readonly IDbContextTransaction dbContextTransaction;
public DbContextTransactionService(IDbContextTransaction dbContextTransaction)
{
this.dbContextTransaction = dbContextTransaction;
}
public void Commit() => dbContextTransaction.Commit();
public void Dispose() => dbContextTransaction.Dispose();
public void Rollback() => dbContextTransaction.Rollback();
}
}

61
PoweredSoft.DbContext.EntityFrameworkCore/DbQueryService`.cs Normal file
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using Microsoft.EntityFrameworkCore;
using PoweredSoft.DbContext.Core;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
namespace PoweredSoft.DbContext.EntityFrameworkCore
{
public class DbQueryService<TEntity> : IDbQueryService<TEntity>
where TEntity : class
{
public DbQueryService(IQueryable<TEntity> queryable)
{
Queryable = queryable;
}
public Expression Expression => ((IQueryable<TEntity>)Queryable).Expression;
public Type ElementType => ((IQueryable<TEntity>)Queryable).ElementType;
public IQueryProvider Provider => ((IQueryable<TEntity>)Queryable).Provider;
public IQueryable<TEntity> Queryable { get; }
public IDbQueryService<TEntity> AsNoTracking()
{
var efQuery = Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.AsNoTracking(Queryable);
var ret = new DbQueryService<TEntity>(efQuery);
return ret;
}
public IEnumerator GetEnumerator() => ((IQueryable<TEntity>)Queryable).GetEnumerator();
public IDbQueryService<TEntity> Include(string path)
{
var efQuery = Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.Include(Queryable, path);
var ret = new DbQueryService<TEntity>(efQuery);
return ret;
}
IDbQueryService IDbQueryService.AsNoTracking()
{
var efQuery = Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.AsNoTracking(Queryable);
var ret = new DbQueryService<TEntity>(efQuery);
return ret;
}
IEnumerator<TEntity> IEnumerable<TEntity>.GetEnumerator() => ((IQueryable<TEntity>)Queryable).GetEnumerator();
IDbQueryService IDbQueryService.Include(string path)
{
var efQuery = Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.Include(Queryable, path);
var ret = new DbQueryService<TEntity>(efQuery);
return ret;
}
}
}

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PoweredSoft.DbContext.EntityFrameworkCore/DbSetService`.cs Normal file
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using Microsoft.EntityFrameworkCore;
using PoweredSoft.DbContext.Core;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
namespace PoweredSoft.DbContext.EntityFrameworkCore
{
public class DbSetService<TEntity> : DbQueryService<TEntity>, IDbSetService<TEntity>
where TEntity : class
{
public DbSetService(DbSet<TEntity> dbSet) : base(dbSet)
{
DbSet = dbSet;
}
protected DbSet<TEntity> DbSet { get; }
public ICollection<TEntity> Local => DbSet.Local;
IList IDbSetService.Local => DbSet.Local.ToList();
public TEntity Add(TEntity entity) => DbSet.Add(entity).Entity;
public TEntity Remove(TEntity entity) => DbSet.Remove(entity).Entity;
IEnumerator<TEntity> IEnumerable<TEntity>.GetEnumerator() => ((IQueryable<TEntity>)DbSet).GetEnumerator();
public TEntity Attach(TEntity entity) => DbSet.Attach(entity).Entity;
public void AddRange(IEnumerable<TEntity> entities) => DbSet.AddRange(entities);
public void RemoveRange(IEnumerable<TEntity> entities) => DbSet.RemoveRange(entities);
public DbSet<TEntity> GetEntityFrameworkSet() => DbSet;
public TEntity Find(params object[] keyValues) => DbSet.Find(keyValues);
public object Add(object entity) => DbSet.Add((TEntity)entity);
public void AddRange(IEnumerable entities) => DbSet.AddRange(entities.Cast<TEntity>());
public object Remove(object entity) => DbSet.Remove((TEntity)entity);
public void RemoveRange(IEnumerable entities) => DbSet.RemoveRange(entities.Cast<TEntity>());
object IDbSetService.Find(params object[] keyValues) => DbSet.Find(keyValues);
public object Attach(object entity) => DbSet.Attach((TEntity)entity).Entity;
}
}

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PoweredSoft.DbContext.EntityFrameworkCore/EntityFrameworkCoreDbContextServiceFactory.cs Normal file
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using PoweredSoft.DbContext.Core;
using System;
using System.Collections.Generic;
using System.Text;
namespace PoweredSoft.DbContext.EntityFrameworkCore
{
public class EntityFrameworkCoreDbContextServiceFactory : IContextServiceFactory
{
private readonly IServiceProvider serviceProvider;
public EntityFrameworkCoreDbContextServiceFactory(IServiceProvider serviceProvider)
{
this.serviceProvider = serviceProvider;
}
public bool CanService(Type contextType)
{
return typeof(Microsoft.EntityFrameworkCore.DbContext).IsAssignableFrom(contextType);
}
public IDbContextService Create(Type contextType)
{
var service = serviceProvider.GetService(contextType) as Microsoft.EntityFrameworkCore.DbContext;
var contextService = new DbContextService(service);
return contextService;
}
}
}

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PoweredSoft.DbContext.EntityFrameworkCore/EntityFrameworkCoreQueryableService.cs Normal file
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using Microsoft.EntityFrameworkCore.Query.Internal;
using PoweredSoft.DbContext.Core;
using PoweredSoft.Reflection;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Reflection;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace PoweredSoft.DbContext.EntityFrameworkCore
{
public class EntityFrameworkCoreQueryableService : IQueryableService
{
private MethodInfo asNoTrackingGeneric = null;
public Task<bool> AnyAsync<T>(IQueryable<T> source, Expression<Func<T, bool>> predicate, CancellationToken cancellationToken) where T : class
{
return Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.AnyAsync(source, predicate, cancellationToken);
}
public Task<bool> AnyAsync<T>(IQueryable<T> source, CancellationToken cancellationToken) where T : class
{
return Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.AnyAsync(source, cancellationToken);
}
[MethodKey("AsNoTrackingGeneric")]
public IQueryable<T> AsNoTracking<T>(IQueryable<T> source) where T : class
{
return Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.AsNoTracking(source);
}
public IQueryable AsNoTracking(IQueryable source)
{
if (asNoTrackingGeneric == null)
asNoTrackingGeneric = this.GetType().GetMethodByKey("AsNoTrackingGeneric");
var elementType = source.ElementType;
var method = asNoTrackingGeneric.MakeGenericMethod(elementType);
var result = method.Invoke(this, new object[] { source });
return result as IQueryable;
}
public bool CanHandle<T>(IQueryable<T> queryable)
{
return queryable.Provider is IAsyncQueryProvider;
}
public bool CanHandle(IQueryable queryable)
{
return queryable.Provider is IAsyncQueryProvider;
}
public Task<T> FirstAsync<T>(IQueryable<T> source, CancellationToken cancellationToken = default) where T : class
{
return Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.FirstAsync(source, cancellationToken);
}
public Task<T> FirstAsync<T>(IQueryable<T> source, Expression<Func<T, bool>> predicate, CancellationToken cancellationToken = default) where T : class
{
return Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.FirstAsync(source, predicate, cancellationToken);
}
public Task<T> FirstOrDefaultAsync<T>(IQueryable<T> source, CancellationToken cancellationToken = default) where T : class
{
return Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.FirstOrDefaultAsync(source, cancellationToken);
}
public Task<T> FirstOrDefaultAsync<T>(IQueryable<T> source, Expression<Func<T, bool>> predicate, CancellationToken cancellationToken = default) where T : class
{
return Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.FirstOrDefaultAsync(source, predicate, cancellationToken);
}
public IQueryable<T> Include<T, TProperty>(IQueryable<T> source, Expression<Func<T, TProperty>> path)
where T : class
{
return Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.Include(source, path);
}
public IQueryable<T> Include<T>(IQueryable<T> source, string path)
where T : class
{
return Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.Include(source, path);
}
public Task<List<T>> ToListAsync<T>(IQueryable<T> source, CancellationToken cancellationToken = default) where T : class
{
return Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.ToListAsync(source, cancellationToken);
}
}
}

27
PoweredSoft.DbContext.EntityFrameworkCore/PoweredSoft.DbContext.EntityFrameworkCore.csproj Normal file
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<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.1</TargetFramework>
<Copyright>Powered Softwares Inc.</Copyright>
<Version>1.1.0$(VersionSuffix)</Version>
<PackageIconUrl>https://secure.gravatar.com/avatar/4e32f73820c16718909a06c2927f1f8b?s=512&amp;amp;r=g&amp;amp;d=retro</PackageIconUrl>
<Product>$(MSBuildProjectName)</Product>
<Description>initial</Description>
<PackageId>$(MSBuildProjectName)</PackageId>
<PackageReleaseNotes>initial</PackageReleaseNotes>
<PackageRequireLicenseAcceptance>False</PackageRequireLicenseAcceptance>
<Company>PoweredSoft</Company>
<Authors>PoweredSoft</Authors>
<Deterministic>False</Deterministic>
<LangVersion>8.0</LangVersion>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.EntityFrameworkCore" Version="3.0.0" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\PoweredSoft.DbContext.Core\PoweredSoft.DbContext.Core.csproj" />
<ProjectReference Include="..\PoweredSoft.Reflection\PoweredSoft.Reflection.csproj" />
</ItemGroup>
</Project>

18
PoweredSoft.DbContext.EntityFrameworkCore/ServiceCollectionExtensions.cs Normal file
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using Microsoft.Extensions.DependencyInjection;
using PoweredSoft.DbContext.Core;
using System;
using System.Collections.Generic;
using System.Text;
namespace PoweredSoft.DbContext.EntityFrameworkCore
{
public static class ServiceCollectionExtensions
{
public static IServiceCollection AddPoweredSoftEntityFrameworkCoreDbContextServices(this IServiceCollection services)
{
services.AddSingleton<IQueryableService, EntityFrameworkCoreQueryableService>();
services.AddSingleton<IContextServiceFactory, EntityFrameworkCoreDbContextServiceFactory>();
return services;
}
}
}

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PoweredSoft.DbContext/DbContextServiceProvider.cs Normal file
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using PoweredSoft.DbContext.Core;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace PoweredSoft.DbContext
{
public class DbContextServiceProvider : IDbContextServiceProvider
{
private readonly IEnumerable<IContextServiceFactory> factories;
public DbContextServiceProvider(IEnumerable<IContextServiceFactory> factories)
{
this.factories = factories;
}
public IDbContextService GetServiceForType<TContext>()
{
return GetServiceForType(typeof(TContext));
}
public IDbContextService GetServiceForType(Type contextType)
{
var factory = factories.FirstOrDefault(t => t.CanService(contextType));
if (factory == null)
throw new NotSupportedException($"Could not resolve which factory should create a context service for {contextType}");
return factory.Create(contextType);
}
}
}

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PoweredSoft.DbContext/PoweredSoft.DbContext.csproj Normal file
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<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<Copyright>Powered Softwares Inc.</Copyright>
<Version>1.1.0$(VersionSuffix)</Version>
<PackageIconUrl>https://secure.gravatar.com/avatar/4e32f73820c16718909a06c2927f1f8b?s=512&amp;amp;r=g&amp;amp;d=retro</PackageIconUrl>
<Product>$(MSBuildProjectName)</Product>
<Description>initial</Description>
<PackageId>$(MSBuildProjectName)</PackageId>
<PackageReleaseNotes>initial</PackageReleaseNotes>
<PackageRequireLicenseAcceptance>False</PackageRequireLicenseAcceptance>
<Company>PoweredSoft</Company>
<Authors>PoweredSoft</Authors>
<Deterministic>False</Deterministic>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="3.0.0" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\PoweredSoft.DbContext.Core\PoweredSoft.DbContext.Core.csproj" />
</ItemGroup>
</Project>

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PoweredSoft.DbContext/QueryableExtensionService.cs Normal file
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using PoweredSoft.DbContext.Core;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Threading;
using System.Threading.Tasks;
namespace PoweredSoft.DbContext
{
public class QueryableExtensionService : IQueryableExtensionService
{
private readonly IEnumerable<IQueryableService> services;
public QueryableExtensionService(IEnumerable<IQueryableService> services)
{
this.services = services;
}
public IQueryableService ResolveService<T>(IQueryable<T> queryable)
{
var service = this.services.FirstOrDefault(t => t.CanHandle(queryable));
if (service == null)
throw new Exception($"Could not resolve any service to execute operation..");
return service;
}
public IQueryableService ResolveService(IQueryable queryable)
{
var service = this.services.FirstOrDefault(t => t.CanHandle(queryable));
if (service == null)
throw new Exception($"Could not resolve any service to execute operation..");
return service;
}
public IQueryable<T> AsNoTracking<T>(IQueryable<T> source) where T : class
=> ResolveService(source).AsNoTracking(source);
public IQueryable AsNoTracking(IQueryable source)
=> ResolveService(source).AsNoTracking(source);
public Task<T> FirstOrDefaultAsync<T>(IQueryable<T> source, CancellationToken cancellationToken = default) where T : class
=> ResolveService(source).FirstOrDefaultAsync(source, cancellationToken: cancellationToken);
public Task<T> FirstOrDefaultAsync<T>(IQueryable<T> source, Expression<Func<T, bool>> predicate, CancellationToken cancellationToken = default) where T : class
=> ResolveService(source).FirstOrDefaultAsync(source, predicate, cancellationToken: cancellationToken);
public Task<T> FirstAsync<T>(IQueryable<T> source, CancellationToken cancellationToken = default) where T : class
=> ResolveService(source).FirstAsync(source, cancellationToken: cancellationToken);
public Task<T> FirstAsync<T>(IQueryable<T> source, Expression<Func<T, bool>> predicate, CancellationToken cancellationToken = default) where T : class
=> ResolveService(source).FirstAsync(source, predicate, cancellationToken: cancellationToken);
public Task<bool> AnyAsync<T>(IQueryable<T> source, CancellationToken cancellationToken = default) where T : class
=> ResolveService(source).AnyAsync(source, cancellationToken: cancellationToken);
public Task<bool> AnyAsync<T>(IQueryable<T> source, Expression<Func<T, bool>> predicate, CancellationToken cancellationToken = default) where T : class
=> ResolveService(source).AnyAsync(source, predicate, cancellationToken: cancellationToken);
public IQueryable<T> Include<T, TProperty>(IQueryable<T> source, Expression<Func<T, TProperty>> path)
where T : class
=> ResolveService(source).Include(source, path);
public IQueryable<T> Include<T>(IQueryable<T> source, string path)
where T : class
=> ResolveService(source).Include(source, path);
public Task<List<T>> ToListAsync<T>(IQueryable<T> source, CancellationToken cancellationToken = default) where T : class
=> ResolveService(source).ToListAsync(source, cancellationToken: cancellationToken);
}
}

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PoweredSoft.DbContext/ServiceCollectionExtensions.cs Normal file
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using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.DependencyInjection.Extensions;
using PoweredSoft.DbContext.Core;
using System;
using System.Collections.Generic;
using System.Text;
namespace PoweredSoft.DbContext
{
public static class ServiceCollectionExtensions
{
public static IServiceCollection AddPoweredSoftDbContextServices(this IServiceCollection services)
{
services.TryAddSingleton<IQueryableExtensionService, QueryableExtensionService>();
services.TryAddSingleton<IDbContextServiceProvider, DbContextServiceProvider>();
return services;
}
public static void InitPoweredSoftDbContextExtensions(this IServiceProvider serviceProvider)
{
var queryableExtensionService = serviceProvider.GetRequiredService<IQueryableExtensionService>();
DbContextQueryableExtensions.InitializeExtensionService(queryableExtensionService);
}
}
}