private IEnumerable <T> GetByFilter <T>(List <FilterExpressionInfo> filterExpressionInfos) where T : class
{
using (NHibernateRepository <T> repository = new NHibernateRepository <T>(ConnectionString, DomainAssemblyName))
{
var parameter = Expression.Parameter(typeof(T));
BinaryExpression binaryExpressionBody = null;
foreach (var filterExpressionInfo in filterExpressionInfos)
{
var property = Expression.PropertyOrField(parameter, filterExpressionInfo.PropertyToFilter);
var exprRight = Expression.Constant(filterExpressionInfo.Value);
BinaryExpression binaryExpression = null;
switch (filterExpressionInfo.FilterExpressionType)
{
case FilterExpressionType.Equal:
binaryExpression = Expression.Equal(property, exprRight);
break;
}
if (binaryExpressionBody == null)
{
binaryExpressionBody = binaryExpression;
}
else
{
binaryExpressionBody = Expression.AndAlso(binaryExpressionBody, binaryExpression);
}
}
Expression <Func <T, bool> > lambda = Expression.Lambda <Func <T, bool> >(binaryExpressionBody, parameter);
return((IEnumerable <T>)repository.FindBy(lambda));
}
}
public T FindBy <T>(int id) where T : class
{
using (IRepository <T> repository = new NHibernateRepository <T>(ConnectionString, DomainAssemblyName))
{
return(repository.FindBy(id));
}
}