/// <summary>Gets or sets the compiled action to update the internal query.</summary>
/// <value>The compiled action to update the internal query.</value>
/// <summary>Adds an or get a filter queryable from the context.</summary>
/// <param name="context">The context to add or get a filter queryable.</param>
/// <returns>the filter queryable fromt the context.</returns>
public BaseQueryFilterQueryable AddOrGetFilterQueryable(DbContext context)
{
BaseQueryFilterQueryable filterQueryable;
var set = GetDbSetCompiled.Value(context);
if (!QueryFilterManager.CacheWeakFilterQueryable.TryGetValue(set, out filterQueryable))
{
#if EF5 || EF6
var objectQuery = set.GetObjectQuery(ElementType);
filterQueryable = CreateFilterQueryableCompiled.Value(context, this, objectQuery);
QueryFilterManager.CacheWeakFilterQueryable.Add(set, filterQueryable);
#elif EFCORE
// todo: Create compiled version
var field = set.GetType().GetField("_entityQueryable", BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
var internalQuery = field.GetValue(set);
var valueProperty = internalQuery.GetType().GetProperty("Value");
var valueInternalQuery = valueProperty.GetValue(internalQuery);
filterQueryable = CreateFilterQueryableCompiled.Value(context, this, valueInternalQuery);
QueryFilterManager.CacheWeakFilterQueryable.Add(set, filterQueryable);
#endif
}
return(filterQueryable);
}
/// <summary>Compile the action to update the internal query.</summary>
/// <param name="context">The context to update the query from.</param>
/// <param name="query">The query to change the internal query.</param>
public void UpdateInternalQuery(DbContext context, object query)
{
// todo: Convert to expression once EF team fix the cast issue: https://github.com/aspnet/EntityFramework/issues/3736
var set = GetDbSetCompiled.Value(context);
var field = set.GetType().GetField("_entityQueryable", BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
var internalQuery = field.GetValue(set);
var valueProperty = internalQuery.GetType().GetProperty("Value");
valueProperty.SetValue(internalQuery, query);
}