protected MethodInfo GetOrderMethod(bool isFirst, QuerySort querySort, Type type, Type[] parameterDefinitions, Type[] chainedOrderParameterDefinitions, Type[] typeArguments)
{
if (isFirst)
{
return(querySort.Direction == SortDirection.Ascending ?
MethodProvider.MakeGenericMethod(type, "OrderBy", parameterDefinitions, typeArguments) :
MethodProvider.MakeGenericMethod(type, "OrderByDescending", parameterDefinitions, typeArguments));
}
return(querySort.Direction == SortDirection.Ascending ?
MethodProvider.MakeGenericMethod(type, "ThenBy", chainedOrderParameterDefinitions, typeArguments) :
MethodProvider.MakeGenericMethod(type, "ThenByDescending", chainedOrderParameterDefinitions, typeArguments));
}
private Expression BuildMasterDetailManyToManyRelationExpression(Expression memberChain, Type masterType, Type detailType, IEnumerable <Type> routeEntityTypes, int currentRouteEntityTypeIndex)
{
var listProperties = _propertyProvider.GetProperties(detailType).Where(p => p.PropertyType.IsListOfRawGeneric(typeof(Entity <>)));
foreach (var detailProperty in listProperties)
{
var manyToManyType = detailProperty.PropertyType.BaseGenericType().GenericTypeArguments[0];
var masterIdProperty = manyToManyType.GetPropertyIgnoreCase(masterType.Name + "id");
if (masterIdProperty != null)
{
var unprocessedRouteEntityTypes = GetUnprocessedRouteEntityTypes(routeEntityTypes, currentRouteEntityTypeIndex);
unprocessedRouteEntityTypes.Add(manyToManyType);
return(Expression.Call(
_methodProvider.MakeGenericMethod(typeof(Enumerable), "Any",
new Type[] { typeof(IEnumerable <>), typeof(Func <,>) },
new Type[] { manyToManyType }),
Expression.Property(memberChain, detailProperty),
BuildFilter(unprocessedRouteEntityTypes)));
}
}
return(null);
}
public override void Visit(PropertyInfo property, QueryFilterWalkInfo walkInfo)
{
var member = Expression.Property(walkInfo.Member, property);
if (property.PropertyType.IsListOfRawGeneric(typeof(Entity <>)))
{
var type = property.PropertyType.BaseGenericType().GetGenericArguments()[0];
var whereMethod = _methodProvider.MakeGenericMethod(typeof(Enumerable), "Any",
new Type[] { typeof(IEnumerable <>), typeof(Func <,>) },
new Type[] { type });
var parameter = Expression.Parameter(type, type.Name.Camelize());
var lambda = Expression.Lambda(NextWalk(type, walkInfo, parameter), parameter);
_expression = Expression.Call(whereMethod, member, lambda);
}
else if (property.PropertyType.IsSubclassOfRawGeneric(typeof(Entity <>)))
{
_expression = NextWalk(property.PropertyType, walkInfo, member);
}
else
{
_expression = GetPropertyComparisonExpression(member, walkInfo.LogicalFilter);
}
}
private Expression BuildMasterDetailManyToManyRelationExpression(ParameterExpression parameter, Type masterType, Type detailType, object masterId)
{
var properties = _propertyProvider.GetProperties(detailType).Where(p => p.PropertyType.IsListOfRawGeneric(typeof(Entity <>)));
foreach (var property in properties)
{
var propertyGenericArgument = property.PropertyType.BaseGenericType().GenericTypeArguments[0];
var masterIdProperty = propertyGenericArgument.GetPropertyIgnoreCase(masterType.Name + "id");
if (masterIdProperty != null)
{
return(Expression.Call(
_methodProvider.MakeGenericMethod(typeof(Enumerable), "Any",
new Type[] { typeof(IEnumerable <>), typeof(Func <,>) },
new Type[] { propertyGenericArgument }),
Expression.Property(parameter, property),
BuildAnyExpresion(propertyGenericArgument, masterIdProperty, masterId)));
}
}
return(null);
}
