public static async Task <T> FindFirstOrDefaultAsync <T>(this NsCollection <T> collection, Expression <Func <T, bool> > query, params SortDescription[] sorts)
where T : class
{
Validate.NotNull(collection, nameof(collection));
Validate.NotNull(query, nameof(query));
return((await collection.FindAsync(query: QueryBuilder <T> .Build(query), sorts: sorts ?? SortDescription.OrderById(), skip: 0, take: 1)).FirstOrDefault());
}
public static async Task <int> CountAsync <T>(this NsCollection <T> collection, Expression <Func <T, bool> > query) where T : class
{
Validate.NotNull(collection, nameof(collection));
Validate.NotNull(query, nameof(query));
return(await collection.CountAsync(QueryBuilder <T> .Build(query)));
}
public static async Task <T[]> FindAsync <T>(this NsCollection <T> collection, Expression <Func <T, bool> > query, params SortDescription[] sorts) where T : class
{
Validate.NotNull(collection, nameof(collection));
Validate.NotNull(query, nameof(query));
return(await collection.FindAsync(QueryBuilder <T> .Build(query), sorts));
}
public async Task <NsCollection <T> > GetCollectionAsync <T>(string collectionName) where T : class
{
Validate.NotNullOrEmptyOrWhiteSpace(collectionName, nameof(collectionName));
var collection = new NsCollection <T>(this, collectionName);
await collection.EnsureTableAsync();
return(collection);
}
public static async Task EnsureIndexAsync <T>(this NsCollection <T> collection,
Expression <Func <T, object> > query, bool unique = false, bool ascending = true)
where T : class
{
await collection.EnsureIndexAsync(QueryBuilder <T> .BuildPath(query), unique, ascending);
}
public static async Task <T> FindFirstOrDefaultAsync <T>(this NsCollection <T> collection, params SortDescription[] sorts)
where T : class
{
Validate.NotNull(collection, nameof(collection));
return((await collection.FindAsync(sorts: sorts ?? SortDescription.OrderById(), skip: 0, take: 1)).FirstOrDefault());
}
public static async Task <T[]> FindAllAsync <T>(this NsCollection <T> collection, params SortDescription[] sorts)
where T : class
{
Validate.NotNull(collection, nameof(collection));
return(await collection.FindAsync(sorts : sorts ?? SortDescription.OrderById()));
}