public static ISolrQuery HandleMethodCall(this MethodCallExpression mce, MemberContext context)
{
if ((mce.Method.DeclaringType == typeof(Queryable) || mce.Method.DeclaringType == typeof(Enumerable)) &&
mce.Method.Name == nameof(Queryable.Any))
{
string field = context.GetSolrMemberProduct(mce.Arguments[0]);
if (mce.Arguments.Count == 1)
{
return(new SolrHasValueQuery(field));
}
if (mce.Arguments.Count == 2)
{
LambdaExpression lambda = (LambdaExpression)mce.Arguments[1];
return(lambda.Body.GetSolrFilterQuery(MemberContext.ForLambda(context, lambda, field)));
}
}
if (mce.Method.Name == nameof(Queryable.Contains))
{
// IEnumerable Contains or own e.g. for List<T>
if (mce.Arguments.Count >= 2 || (mce.Arguments.Count == 1 && mce.Object != null))
{
Expression obj = mce.Object ?? mce.Arguments[0];
Expression arg2 = mce.Object == null ? mce.Arguments[1] : mce.Arguments[0];
// Consider array member equal
if (context.HasMemberAccess(obj))
{
return(new SolrQueryByField(context.GetSolrMemberProduct(obj, true),
context.GetSolrMemberProduct(arg2, true)));
}
// Consider in list query
IEnumerable list;
try
{
list = (IEnumerable)Expression.Lambda(obj).Compile().DynamicInvoke();
}
catch (Exception e)
{
throw new InvalidOperationException(
$"Unable to get IEnumerable from '{obj}' expression.", e);
}
return(new SolrQueryInList(context.GetSolrMemberProduct(arg2, true),
list.OfType <object>().Select(o => o.SerializeToSolr(context.FieldSerializer))));
}
}
throw new InvalidOperationException($"Unable to translate {mce.Method.Name} method to SOLR expression");
}
