public ProxyDbSet(DbSet <TEntity> baseDbSet, Func <Expression, Expression> manipulator = null)
{
IQueryProvider provider = ((IQueryable)baseDbSet).Provider;
ProxyDbProvider proxyDbProvider = new ProxyDbProvider(provider, manipulator);
ProxyQueryable = (ProxyQueryable <TEntity>)(proxyDbProvider.CreateQuery <TEntity>(((IQueryable)baseDbSet).Expression));
}
public IQueryable <TElement> CreateQuery <TElement>(Expression expression)
{
Expression expression2 = Manipulator != null?Manipulator(false, expression) : expression;
IQueryable <TElement> query = BaseQueryProvider.CreateQuery <TElement>(expression2);
IQueryProvider provider = query.Provider;
ProxyDbProvider proxy = provider == BaseQueryProvider ? this : new ProxyDbProvider(provider, Manipulator);
return(new ProxyQueryable <TElement>(proxy, query));
}
/// <summary>
///
/// </summary>
/// <param name="baseDbSet"></param>
/// <param name="manipulator">First parameter: true for Execute, false for CreateQuery.</param>
public ProxyDbSet(DbSet <TEntity> baseDbSet, Func <bool, Expression, Expression> manipulator)
{
BaseDbSet = baseDbSet;
IQueryProvider provider = ((IQueryable)baseDbSet).Provider;
ProxyDbProvider proxyDbProvider = new ProxyDbProvider(provider, manipulator);
ProxyQueryable = proxyDbProvider.CreateQuery <TEntity>(((IQueryable)baseDbSet).Expression);
Manipulator = manipulator;
if (InternalSetField != null)
{
InternalSetField.SetValue(this, InternalSetField.GetValue(baseDbSet));
}
}
public IQueryable CreateQuery(Expression expression)
{
Expression expression2 = Manipulator != null?Manipulator(false, expression) : expression;
IQueryable query = BaseQueryProvider.CreateQuery(expression2);
IQueryProvider provider = query.Provider;
ProxyDbProvider proxy = provider == BaseQueryProvider ? this : new ProxyDbProvider(provider, Manipulator);
Type entityType = GetIQueryableTypeArgument(query.GetType());
if (entityType == null)
{
return(new ProxyQueryable(proxy, query));
}
else
{
return((IQueryable)CreateQueryNonGenericToGenericMethod.MakeGenericMethod(entityType).Invoke(null, new object[] { proxy, query }));
}
}
public ProxyQueryable(ProxyDbProvider proxyDbProvider, IQueryable baseQueryable)
{
ProxyDbProvider = proxyDbProvider;
BaseQueryable = baseQueryable;
}
protected static ProxyQueryable <TElement> CreateQueryNonGenericToGeneric <TElement>(ProxyDbProvider proxy, IQueryable <TElement> query)
{
return(new ProxyQueryable <TElement>(proxy, query));
}