/// <summary>
/// Verify all required <see cref="IMongoIndexKeys"/> are defined and ready to go.
/// </summary>
protected virtual void VerifyIndexes <TEntity>(MongoCollection <TEntity> collection)
{
Type entityType = typeof(TEntity);
if (IndexTypesByEntityType.ContainsKey(entityType))
{
foreach (object untypedIndexType in IndexTypesByEntityType[entityType])
{
var mongoIndex = (MongoIndex <TEntity>)untypedIndexType;
var indexKeysBuilder = new IndexKeysBuilder();
if (mongoIndex.IsAcending)
{
indexKeysBuilder = indexKeysBuilder.Ascending(mongoIndex.Selectors.ToArray());
}
else
{
indexKeysBuilder = indexKeysBuilder.Descending(mongoIndex.Selectors.ToArray());
}
collection.CreateIndex
(
indexKeysBuilder,
IndexOptions
.SetUnique(mongoIndex.IsUnique)
.SetName(mongoIndex.Name)
);
}
}
}
protected virtual void VerifyIndexes <TEntity>(IMongoCollection <TEntity> collection)
{
Type entityType = typeof(TEntity);
if (IndexTypesByEntityType.ContainsKey(entityType))
{
foreach (object untypedIndexType in IndexTypesByEntityType[entityType])
{
var mongoIndex = (MongoDbIndex <TEntity>)untypedIndexType;
IndexKeysDefinitionBuilder <TEntity> indexKeysBuilder = Builders <TEntity> .IndexKeys;
IndexKeysDefinition <TEntity> indexKey = null;
IList <Expression <Func <TEntity, object> > > selectors = mongoIndex.Selectors.ToList();
for (int i = 0; i < selectors.Count; i++)
{
Expression <Func <TEntity, object> > expression = selectors[i];
if (mongoIndex.IsAcending)
{
if (i == 0)
{
indexKey = indexKeysBuilder.Ascending(expression);
}
else
{
indexKey = indexKey.Ascending(expression);
}
}
else
{
if (i == 0)
{
indexKey = indexKeysBuilder.Descending(expression);
}
else
{
indexKey = indexKey.Descending(expression);
}
}
}
collection.Indexes.CreateOne
(
indexKey,
new CreateIndexOptions
{
Unique = mongoIndex.IsUnique,
Name = mongoIndex.Name
}
);
}
}
}
