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Added support for generic filter and sort methods

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This commit is contained in:
Steffen Kolmer
2019-03-24 19:45:23 +01:00
parent a582c6be06
commit e1bb069253
8 changed files with 94 additions and 11 deletions
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22
Sieve/Services/SieveProcessor.cs
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@@ -387,6 +387,28 @@ namespace Sieve.Services
_options.Value.CaseSensitive ? BindingFlags.Default : BindingFlags.IgnoreCase | BindingFlags.Public | BindingFlags.Instance,
typeof(IQueryable<TEntity>));
if (customMethod == null)
{
// Find generic methods `public IQueryable<T> Filter<T>(IQueryable<T> source, ...)`
var genericCustomMethod = parent?.GetType()
.GetMethodExt(name,
_options.Value.CaseSensitive ? BindingFlags.Default : BindingFlags.IgnoreCase | BindingFlags.Public | BindingFlags.Instance,
typeof(IQueryable<>));
if (genericCustomMethod != null &&
genericCustomMethod.ReturnType.IsGenericType &&
genericCustomMethod.ReturnType.GetGenericTypeDefinition() == typeof(IQueryable<>))
{
var genericBaseType = genericCustomMethod.ReturnType.GenericTypeArguments[0];
var constraints = genericBaseType.GetGenericParameterConstraints();
if (constraints == null || constraints.Length == 0 || constraints.All((t) => t.IsAssignableFrom(typeof(TEntity))))
{
customMethod = genericCustomMethod.MakeGenericMethod(typeof(TEntity));
}
}
}
if (customMethod != null)
{
try