FreeSql.DbContext 内部仓储融合

This commit is contained in:
28810
2019-03-30 17:14:23 +08:00
parent ff758f338c
commit 496750da94
22 changed files with 1312 additions and 178 deletions

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using System;
using System.Collections.Generic;
using System.Collections.Concurrent;
using System.Linq.Expressions;
using System.Text;
using System.Linq;
namespace FreeSql {
public interface IDataFilter<TEntity> : IDisposable where TEntity : class {
IDataFilter<TEntity> Apply(string filterName, Expression<Func<TEntity, bool>> filterAndValidateExp);
/// <summary>
/// 开启过滤器,若使用 using 则使用完后,恢复为原有状态
/// </summary>
/// <param name="filterName">过滤器名称</param>
/// <returns></returns>
IDisposable Enable(params string[] filterName);
/// <summary>
/// 开启所有过滤器,若使用 using 则使用完后,恢复为原有状态
/// </summary>
/// <returns></returns>
IDisposable EnableAll();
/// <summary>
/// 禁用过滤器,若使用 using 则使用完后,恢复为原有状态
/// </summary>
/// <param name="filterName"></param>
/// <returns></returns>
IDisposable Disable(params string[] filterName);
/// <summary>
/// 禁用所有过滤器,若使用 using 则使用完后,恢复为原有状态
/// </summary>
/// <returns></returns>
IDisposable DisableAll();
bool IsEnabled(string filterName);
}
internal class DataFilter<TEntity> : IDataFilter<TEntity> where TEntity : class {
internal class FilterItem {
public Expression<Func<TEntity, bool>> Expression { get; set; }
Func<TEntity, bool> _expressionDelegate;
public Func<TEntity, bool> ExpressionDelegate => _expressionDelegate ?? (_expressionDelegate = Expression?.Compile());
public bool IsEnabled { get; set; }
}
internal ConcurrentDictionary<string, FilterItem> _filters = new ConcurrentDictionary<string, FilterItem>(StringComparer.CurrentCultureIgnoreCase);
public IDataFilter<TEntity> Apply(string filterName, Expression<Func<TEntity, bool>> filterAndValidateExp) {
if (filterName == null)
throw new ArgumentNullException(nameof(filterName));
if (filterAndValidateExp == null) return this;
var filterItem = new FilterItem { Expression = filterAndValidateExp, IsEnabled = true };
_filters.AddOrUpdate(filterName, filterItem, (k, v) => filterItem);
return this;
}
public IDisposable Disable(params string[] filterName) {
if (filterName == null || filterName.Any() == false) return new UsingAny(() => { });
List<string> restore = new List<string>();
foreach (var name in filterName) {
if (_filters.TryGetValue(name, out var tryfi)) {
if (tryfi.IsEnabled) {
restore.Add(name);
tryfi.IsEnabled = false;
}
}
}
return new UsingAny(() => this.Enable(restore.ToArray()));
}
public IDisposable DisableAll() {
List<string> restore = new List<string>();
foreach (var val in _filters) {
if (val.Value.IsEnabled) {
restore.Add(val.Key);
val.Value.IsEnabled = false;
}
}
return new UsingAny(() => this.Enable(restore.ToArray()));
}
class UsingAny : IDisposable {
Action _ondis;
public UsingAny(Action ondis) {
_ondis = ondis;
}
public void Dispose() {
_ondis?.Invoke();
}
}
public IDisposable Enable(params string[] filterName) {
if (filterName == null || filterName.Any() == false) return new UsingAny(() => { });
List<string> restore = new List<string>();
foreach (var name in filterName) {
if (_filters.TryGetValue(name, out var tryfi)) {
if (tryfi.IsEnabled == false) {
restore.Add(name);
tryfi.IsEnabled = true;
}
}
}
return new UsingAny(() => this.Disable(restore.ToArray()));
}
public IDisposable EnableAll() {
List<string> restore = new List<string>();
foreach (var val in _filters) {
if (val.Value.IsEnabled == false) {
restore.Add(val.Key);
val.Value.IsEnabled = true;
}
}
return new UsingAny(() => this.Disable(restore.ToArray()));
}
public bool IsEnabled(string filterName) {
if (filterName == null) return false;
return _filters.TryGetValue(filterName, out var tryfi) ? tryfi.IsEnabled : false;
}
~DataFilter() {
this.Dispose();
}
public void Dispose() {
_filters.Clear();
}
}
public class FluentDataFilter : IDisposable {
internal List<(Type type, string name, LambdaExpression exp)> _filters = new List<(Type type, string name, LambdaExpression exp)>();
public FluentDataFilter Apply<TEntity>(string filterName, Expression<Func<TEntity, bool>> filterAndValidateExp) where TEntity : class {
if (filterName == null)
throw new ArgumentNullException(nameof(filterName));
if (filterAndValidateExp == null) return this;
_filters.Add((typeof(TEntity), filterName, filterAndValidateExp));
return this;
}
~FluentDataFilter() {
this.Dispose();
}
public void Dispose() {
_filters.Clear();
}
}
}

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using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Reflection;
using System.Text;
namespace FreeSql {
internal class DataFilterUtil {
internal static Action<FluentDataFilter> _globalDataFilter;
static ConcurrentDictionary<Type, Delegate> _dicSetRepositoryDataFilterApplyDataFilterFunc = new ConcurrentDictionary<Type, Delegate>();
static ConcurrentDictionary<Type, ConcurrentDictionary<string, bool>> _dicSetRepositoryDataFilterConvertFilterNotExists = new ConcurrentDictionary<Type, ConcurrentDictionary<string, bool>>();
internal static void SetRepositoryDataFilter(object repos, Action<FluentDataFilter> scopedDataFilter) {
if (scopedDataFilter != null) {
SetRepositoryDataFilter(repos, null);
}
if (scopedDataFilter == null) {
scopedDataFilter = _globalDataFilter;
}
if (scopedDataFilter == null) return;
using (var globalFilter = new FluentDataFilter()) {
scopedDataFilter(globalFilter);
var type = repos.GetType();
Type entityType = (repos as IRepository).EntityType;
if (entityType == null) throw new Exception("FreeSql.Repository 设置过滤器失败,原因是对象不属于 IRepository");
var notExists = _dicSetRepositoryDataFilterConvertFilterNotExists.GetOrAdd(type, t => new ConcurrentDictionary<string, bool>());
var newFilter = new Dictionary<string, LambdaExpression>();
foreach (var gf in globalFilter._filters) {
if (notExists.ContainsKey(gf.name)) continue;
LambdaExpression newExp = null;
var filterParameter1 = Expression.Parameter(entityType, gf.exp.Parameters[0].Name);
try {
newExp = Expression.Lambda(
typeof(Func<,>).MakeGenericType(entityType, typeof(bool)),
new ReplaceVisitor().Modify(gf.exp.Body, filterParameter1),
filterParameter1
);
} catch {
notExists.TryAdd(gf.name, true); //防止第二次错误
continue;
}
newFilter.Add(gf.name, newExp);
}
if (newFilter.Any() == false) return;
var del = _dicSetRepositoryDataFilterApplyDataFilterFunc.GetOrAdd(type, t => {
var reposParameter = Expression.Parameter(type);
var nameParameter = Expression.Parameter(typeof(string));
var expressionParameter = Expression.Parameter(
typeof(Expression<>).MakeGenericType(typeof(Func<,>).MakeGenericType(entityType, typeof(bool)))
);
return Expression.Lambda(
Expression.Block(
Expression.Call(reposParameter, type.GetMethod("ApplyDataFilter", BindingFlags.Instance | BindingFlags.NonPublic), nameParameter, expressionParameter)
),
new[] {
reposParameter, nameParameter, expressionParameter
}
).Compile();
});
foreach (var nf in newFilter) {
del.DynamicInvoke(repos, nf.Key, nf.Value);
}
newFilter.Clear();
}
}
}
class ReplaceVisitor : ExpressionVisitor {
private ParameterExpression parameter;
public Expression Modify(Expression expression, ParameterExpression parameter) {
this.parameter = parameter;
return Visit(expression);
}
protected override Expression VisitMember(MemberExpression node) {
if (node.Expression?.NodeType == ExpressionType.Parameter)
return Expression.Property(parameter, node.Member.Name);
return base.VisitMember(node);
}
}
}

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using FreeSql;
using System;
using System.Collections.Generic;
using System.Collections.Concurrent;
using System.Linq.Expressions;
using System.Reflection;
using System.Linq;
using Microsoft.Extensions.DependencyInjection;
namespace FreeSql {
public static class FreeSqlRepositoryDependencyInjection {
public static IServiceCollection AddFreeRepository(this IServiceCollection services, Action<FluentDataFilter> globalDataFilter = null, params Assembly[] assemblies) {
DataFilterUtil._globalDataFilter = globalDataFilter;
services.AddScoped(typeof(IReadOnlyRepository<>), typeof(GuidRepository<>));
services.AddScoped(typeof(IBasicRepository<>), typeof(GuidRepository<>));
services.AddScoped(typeof(BaseRepository<>), typeof(GuidRepository<>));
services.AddScoped(typeof(GuidRepository<>));
services.AddScoped(typeof(IReadOnlyRepository<,>), typeof(DefaultRepository<,>));
services.AddScoped(typeof(IBasicRepository<,>), typeof(DefaultRepository<,>));
services.AddScoped(typeof(BaseRepository<,>), typeof(DefaultRepository<,>));
services.AddScoped(typeof(DefaultRepository<,>));
if (assemblies?.Any() == true) {
foreach(var asse in assemblies) {
foreach (var repos in asse.GetTypes().Where(a => a.IsAbstract == false && typeof(IRepository).IsAssignableFrom(a))) {
services.AddScoped(repos);
}
}
}
return services;
}
}
}

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using FreeSql;
using System;
using System.Collections.Generic;
using System.Collections.Concurrent;
using System.Text;
using System.Linq.Expressions;
using System.Linq;
using System.Data;
public static class FreeSqlRepositoryExtenssions {
/// <summary>
/// 返回默认仓库类
/// </summary>
/// <typeparam name="TEntity"></typeparam>
/// <typeparam name="TKey"></typeparam>
/// <param name="that"></param>
/// <param name="filter">数据过滤 + 验证</param>
/// <returns></returns>
public static DefaultRepository<TEntity, TKey> GetRepository<TEntity, TKey>(this IFreeSql that, Expression<Func<TEntity, bool>> filter = null) where TEntity : class {
return new DefaultRepository<TEntity, TKey>(that, filter);
}
/// <summary>
/// 返回仓库类,适用 Insert 方法无须返回插入的数据
/// </summary>
/// <typeparam name="TEntity"></typeparam>
/// <param name="that"></param>
/// <param name="filter">数据过滤 + 验证</param>
/// <param name="asTable">分表规则,参数:旧表名;返回:新表名 https://github.com/2881099/FreeSql/wiki/Repository</param>
/// <returns></returns>
public static GuidRepository<TEntity> GetGuidRepository<TEntity>(this IFreeSql that, Expression<Func<TEntity, bool>> filter = null, Func<string, string> asTable = null) where TEntity : class {
return new GuidRepository<TEntity>(that, filter, asTable);
}
/// <summary>
/// 合并两个仓储的设置(过滤+分表),以便查询
/// </summary>
/// <typeparam name="TEntity"></typeparam>
/// <typeparam name="T2"></typeparam>
/// <param name="that"></param>
/// <param name="repos"></param>
/// <returns></returns>
public static ISelect<TEntity> FromRepository<TEntity, T2>(this ISelect<TEntity> that, BaseRepository<T2> repos) where TEntity : class where T2 : class {
var filters = (repos.DataFilter as DataFilter<T2>)._filters.Where(a => a.Value.IsEnabled == true);
foreach (var filter in filters) that.Where<T2>(filter.Value.Expression);
return that.AsTable(repos.AsTableSelectInternal);
}
/// <summary>
/// 创建基于仓储功能的工作单元,务必使用 using 包含使用
/// </summary>
/// <param name="that"></param>
/// <returns></returns>
public static IRepositoryUnitOfWork CreateUnitOfWork(this IFreeSql that) {
return new RepositoryUnitOfWork(that);
}
}

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using FreeSql.Extensions.EntityUtil;
using FreeSql.Internal.Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Threading.Tasks;
namespace FreeSql {
public abstract class BaseRepository<TEntity> : IRepository<TEntity>
where TEntity : class {
internal IFreeSql _fsql;
internal UnitOfWork _uow;
RepositoryDbSet<TEntity> _setPriv;
internal RepositoryDbSet<TEntity> _set => _setPriv ?? (_setPriv = new RepositoryDbSet<TEntity>(this));
public IDataFilter<TEntity> DataFilter { get; } = new DataFilter<TEntity>();
Func<string, string> _asTableVal;
protected Func<string, string> AsTable {
get => _asTableVal;
set {
_asTableVal = value;
AsTableSelect = value == null ? null : new Func<Type, string, string>((a, b) => a == EntityType ? value(b) : null);
}
}
internal Func<string, string> AsTableInternal => AsTable;
protected Func<Type, string, string> AsTableSelect { get; private set; }
internal Func<Type, string, string> AsTableSelectInternal => AsTableSelect;
protected BaseRepository(IFreeSql fsql, Expression<Func<TEntity, bool>> filter, Func<string, string> asTable = null) {
_fsql = fsql;
DataFilterUtil.SetRepositoryDataFilter(this, null);
DataFilter.Apply("", filter);
AsTable = asTable;
}
public Type EntityType => _set._entityTypeInternal;
public IUpdate<TEntity> UpdateDiy => _set.OrmUpdateInternal(null);
public ISelect<TEntity> Select => _set.OrmSelectInternal(null);
public ISelect<TEntity> Where(Expression<Func<TEntity, bool>> exp) => _set.OrmSelectInternal(null).Where(exp);
public ISelect<TEntity> WhereIf(bool condition, Expression<Func<TEntity, bool>> exp) => _set.OrmSelectInternal(null).WhereIf(condition, exp);
public int Delete(Expression<Func<TEntity, bool>> predicate) => _set.OrmDeleteInternal(null).Where(predicate).ExecuteAffrows();
public Task<int> DeleteAsync(Expression<Func<TEntity, bool>> predicate) => _set.OrmDeleteInternal(null).Where(predicate).ExecuteAffrowsAsync();
public int Delete(TEntity entity) => _set.RemoveAffrows(entity);
public Task<int> DeleteAsync(TEntity entity) => _set.RemoveAffrowsAsync(entity);
public int Delete(IEnumerable<TEntity> entitys) => _set.RemoveRangeAffrows(entitys);
public Task<int> DeleteAsync(IEnumerable<TEntity> entitys) => _set.RemoveRangeAffrowsAsync(entitys);
public virtual TEntity Insert(TEntity entity) {
_set.Add(entity);
return entity;
}
public virtual List<TEntity> Insert(IEnumerable<TEntity> entitys) {
_set.AddRange(entitys);
return entitys.ToList();
}
async public virtual Task<TEntity> InsertAsync(TEntity entity) {
await _set.AddAsync(entity);
return entity;
}
async public virtual Task<List<TEntity>> InsertAsync(IEnumerable<TEntity> entitys) {
await _set.AddRangeAsync(entitys);
return entitys.ToList();
}
public int Update(TEntity entity) => _set.UpdateAffrows(entity);
public Task<int> UpdateAsync(TEntity entity) => _set.UpdateAffrowsAsync(entity);
public int Update(IEnumerable<TEntity> entitys) => _set.UpdateRangeAffrows(entitys);
public Task<int> UpdateAsync(IEnumerable<TEntity> entitys) => _set.UpdateRangeAffrowsAsync(entitys);
}
public abstract class BaseRepository<TEntity, TKey> : BaseRepository<TEntity>, IRepository<TEntity, TKey>
where TEntity : class {
public BaseRepository(IFreeSql fsql, Expression<Func<TEntity, bool>> filter, Func<string, string> asTable = null) : base(fsql, filter, asTable) {
}
public int Delete(TKey id) {
var stateKey = string.Concat(id);
if (_set._statesInternal.ContainsKey(stateKey)) _set._statesInternal.Remove(stateKey);
return _set.OrmDeleteInternal(id).ExecuteAffrows();
}
public Task<int> DeleteAsync(TKey id) {
var stateKey = string.Concat(id);
if (_set._statesInternal.ContainsKey(stateKey)) _set._statesInternal.Remove(stateKey);
return _set.OrmDeleteInternal(id).ExecuteAffrowsAsync();
}
public TEntity Find(TKey id) => _set.OrmSelectInternal(id).ToOne();
public Task<TEntity> FindAsync(TKey id) => _set.OrmSelectInternal(id).ToOneAsync();
public TEntity Get(TKey id) => Find(id);
public Task<TEntity> GetAsync(TKey id) => FindAsync(id);
}
}

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using System;
using System.Collections.Generic;
using System.Linq.Expressions;
using System.Text;
using System.Threading.Tasks;
namespace FreeSql {
public class DefaultRepository<TEntity, TKey> :
BaseRepository<TEntity, TKey>
where TEntity : class {
public DefaultRepository(IFreeSql fsql) : base(fsql, null, null) {
}
public DefaultRepository(IFreeSql fsql, Expression<Func<TEntity, bool>> filter) : base(fsql, filter, null) {
}
}
}

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
using System.Threading.Tasks;
namespace FreeSql {
public class GuidRepository<TEntity> :
BaseRepository<TEntity, Guid>
where TEntity : class {
public GuidRepository(IFreeSql fsql) : this(fsql, null, null) {
}
public GuidRepository(IFreeSql fsql, Expression<Func<TEntity, bool>> filter, Func<string, string> asTable) : base(fsql, filter, asTable) {
}
}
}

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using System.Collections.Generic;
using System.Threading.Tasks;
namespace FreeSql {
public interface IBasicRepository<TEntity> : IReadOnlyRepository<TEntity>
where TEntity : class {
TEntity Insert(TEntity entity);
List<TEntity> Insert(IEnumerable<TEntity> entitys);
Task<TEntity> InsertAsync(TEntity entity);
Task<List<TEntity>> InsertAsync(IEnumerable<TEntity> entitys);
int Update(TEntity entity);
int Update(IEnumerable<TEntity> entitys);
Task<int> UpdateAsync(TEntity entity);
Task<int> UpdateAsync(IEnumerable<TEntity> entitys);
IUpdate<TEntity> UpdateDiy { get; }
int Delete(TEntity entity);
int Delete(IEnumerable<TEntity> entitys);
Task<int> DeleteAsync(TEntity entity);
Task<int> DeleteAsync(IEnumerable<TEntity> entitys);
}
public interface IBasicRepository<TEntity, TKey> : IBasicRepository<TEntity>, IReadOnlyRepository<TEntity, TKey>
where TEntity : class {
int Delete(TKey id);
Task<int> DeleteAsync(TKey id);
}
}

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using System;
using System.Linq.Expressions;
using System.Threading.Tasks;
namespace FreeSql {
public interface IReadOnlyRepository<TEntity> : IRepository
where TEntity : class {
IDataFilter<TEntity> DataFilter { get; }
ISelect<TEntity> Select { get; }
ISelect<TEntity> Where(Expression<Func<TEntity, bool>> exp);
ISelect<TEntity> WhereIf(bool condition, Expression<Func<TEntity, bool>> exp);
}
public interface IReadOnlyRepository<TEntity, TKey> : IReadOnlyRepository<TEntity>
where TEntity : class {
TEntity Get(TKey id);
Task<TEntity> GetAsync(TKey id);
TEntity Find(TKey id);
Task<TEntity> FindAsync(TKey id);
}
}

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using System;
using System.Linq.Expressions;
using System.Threading.Tasks;
namespace FreeSql {
public interface IRepository {
Type EntityType { get; }
}
public interface IRepository<TEntity> : IReadOnlyRepository<TEntity>, IBasicRepository<TEntity>
where TEntity : class {
int Delete(Expression<Func<TEntity, bool>> predicate);
Task<int> DeleteAsync(Expression<Func<TEntity, bool>> predicate);
}
public interface IRepository<TEntity, TKey> : IRepository<TEntity>, IReadOnlyRepository<TEntity, TKey>, IBasicRepository<TEntity, TKey>
where TEntity : class {
}
}

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using FreeSql.Extensions.EntityUtil;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace FreeSql {
internal class RepositoryDbSet<TEntity> : DbSet<TEntity> where TEntity : class {
protected BaseRepository<TEntity> _repos;
public RepositoryDbSet(BaseRepository<TEntity> repos) {
_fsql = repos._fsql;
_uow = repos._uow;
_repos = repos;
}
protected override ISelect<TEntity> OrmSelect(object dywhere) {
var select = base.OrmSelect(dywhere);
var filters = (_repos.DataFilter as DataFilter<TEntity>)._filters.Where(a => a.Value.IsEnabled == true);
foreach (var filter in filters) select.Where(filter.Value.Expression);
return select.AsTable(_repos.AsTableSelectInternal);
}
internal ISelect<TEntity> OrmSelectInternal(object dywhere) => OrmSelect(dywhere);
protected override IUpdate<TEntity> OrmUpdate(IEnumerable<TEntity> entitys) {
var update = base.OrmUpdate(entitys);
var filters = (_repos.DataFilter as DataFilter<TEntity>)._filters.Where(a => a.Value.IsEnabled == true);
foreach (var filter in filters) {
if (entitys != null)
foreach (var entity in entitys)
if (filter.Value.ExpressionDelegate?.Invoke(entity) == false)
throw new Exception($"FreeSql.Repository Update 失败,因为设置了过滤器 {filter.Key}: {filter.Value.Expression},更新的数据不符合 {_fsql.GetEntityString(entity)}");
update.Where(filter.Value.Expression);
}
return update.AsTable(_repos.AsTableInternal);
}
internal IUpdate<TEntity> OrmUpdateInternal(IEnumerable<TEntity> entitys) => OrmUpdate(entitys);
protected override IDelete<TEntity> OrmDelete(object dywhere) {
var delete = base.OrmDelete(dywhere);
var filters = (_repos.DataFilter as DataFilter<TEntity>)._filters.Where(a => a.Value.IsEnabled == true);
foreach (var filter in filters) delete.Where(filter.Value.Expression);
return delete.AsTable(_repos.AsTableInternal);
}
internal IDelete<TEntity> OrmDeleteInternal(object dywhere) => OrmDelete(dywhere);
protected override IInsert<TEntity> OrmInsert(TEntity entity) => OrmInsert(new[] { entity });
protected override IInsert<TEntity> OrmInsert(IEnumerable<TEntity> entitys) {
var insert = base.OrmInsert(entitys);
var filters = (_repos.DataFilter as DataFilter<TEntity>)._filters.Where(a => a.Value.IsEnabled == true);
foreach (var filter in filters) {
if (entitys != null)
foreach (var entity in entitys)
if (filter.Value.ExpressionDelegate?.Invoke(entity) == false)
throw new Exception($"FreeSql.Repository Insert 失败,因为设置了过滤器 {filter.Key}: {filter.Value.Expression},插入的数据不符合 {_fsql.GetEntityString(entity)}");
}
return insert.AsTable(_repos.AsTableInternal);
}
internal IInsert<TEntity> OrmInsertInternal(TEntity entity) => OrmInsert(entity);
internal IInsert<TEntity> OrmInsertInternal(IEnumerable<TEntity> entitys) => OrmInsert(entitys);
}
}

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using System;
using System.Collections.Generic;
using System.Linq.Expressions;
using System.Text;
namespace FreeSql {
class RepositoryUnitOfWork : UnitOfWork, IRepositoryUnitOfWork {
public RepositoryUnitOfWork(IFreeSql fsql) : base(fsql) {
}
public GuidRepository<TEntity> GetGuidRepository<TEntity>(Expression<Func<TEntity, bool>> filter = null, Func<string, string> asTable = null) where TEntity : class {
var repos = new GuidRepository<TEntity>(_fsql, filter, asTable);
repos._uow = this;
return repos;
}
public DefaultRepository<TEntity, TKey> GetRepository<TEntity, TKey>(Expression<Func<TEntity, bool>> filter = null) where TEntity : class {
var repos = new DefaultRepository<TEntity, TKey>(_fsql, filter);
repos._uow = this;
return repos;
}
}
}