protected override Expression VisitFunction(DbFunctionExpression func)
{
if (func.Name == "@@ROWCOUNT")
{
return(Expression.Property(this.provider, "RowsAffected"));
}
return(base.VisitFunction(func));
}
protected DbFunctionExpression UpdateFunction(DbFunctionExpression func, string name, IEnumerable <Expression> arguments)
{
if (name != func.Name || arguments != func.Arguments)
{
return(new DbFunctionExpression(func.Type, name, arguments));
}
return(func);
}
protected DbFunctionExpression UpdateFunction(DbFunctionExpression func, string name, IEnumerable<Expression> arguments)
{
if (name != func.Name || arguments != func.Arguments)
return new DbFunctionExpression(func.Type, name, arguments);
return func;
}
protected virtual Expression VisitFunction(DbFunctionExpression func)
{
ReadOnlyCollection<Expression> arguments = VisitExpressionList(func.Arguments);
return UpdateFunction(func, func.Name, arguments);
}
protected virtual bool CompareFunction(DbFunctionExpression x, DbFunctionExpression y)
{
return(x.Name == y.Name && CompareExpressionList(x.Arguments, y.Arguments));
}
protected override Expression VisitFunction(DbFunctionExpression func)
{
this.Write(func.Name);
if (func.Arguments.Count > 0)
{
this.Write("(");
for (int i = 0, n = func.Arguments.Count; i < n; i++)
{
if (i > 0) this.Write(", ");
this.Visit(func.Arguments[i]);
}
this.Write(")");
}
return func;
}
protected virtual bool CompareFunction(DbFunctionExpression x, DbFunctionExpression y)
{
return x.Name == y.Name && CompareExpressionList(x.Arguments, y.Arguments);
}
protected virtual Expression VisitFunction(DbFunctionExpression func)
{
ReadOnlyCollection <Expression> arguments = VisitExpressionList(func.Arguments);
return(UpdateFunction(func, func.Name, arguments));
}
