private async Task <GroupsListResponse> GetGroupsListResponseAsync(GroupsListParameters parameters)
{
var groups = await groupAccessesRepo.GetAvailableForUserGroupsAsync(parameters.CourseId, UserId, false, !parameters.Archived, parameters.Archived).ConfigureAwait(false);
/* Order groups by (name, createTime) and get one page of data (offset...offset+count) */
var groupIds = groups.OrderBy(g => g.Name, StringComparer.InvariantCultureIgnoreCase).ThenBy(g => g.Id)
.Skip(parameters.Offset)
.Take(parameters.Count)
.Select(g => g.Id)
.ToImmutableHashSet();
var filteredGroups = groups.Where(g => groupIds.Contains(g.Id)).ToList();
var groupMembers = await groupMembersRepo.GetGroupsMembersAsync(groupIds).ConfigureAwait(false);
var membersCountByGroup = groupMembers.GroupBy(m => m.GroupId).ToDictionary(g => g.Key, g => g.Count()).ToDefaultDictionary();
var groupAccessesByGroup = await groupAccessesRepo.GetGroupAccessesAsync(groupIds).ConfigureAwait(false);
var groupInfos = filteredGroups.Select(g => BuildGroupInfo(
g,
membersCountByGroup[g.Id],
groupAccessesByGroup[g.Id],
addGroupApiUrl: true
)).ToList();
return(new GroupsListResponse
{
Groups = groupInfos,
Pagination = new PaginationResponse
{
Offset = parameters.Offset,
Count = filteredGroups.Count,
TotalCount = groups.Count,
}
});
}
public async Task <ActionResult <GroupsListResponse> > GroupsList([FromQuery] GroupsListParameters parameters)
{
return(await GetGroupsListResponseAsync(parameters).ConfigureAwait(false));
}
public async Task <ActionResult <GroupsListResponse> > ArchivedGroupsList(ICourse course, [FromQuery] GroupsListParameters parameters)
{
return(await GetGroupsListResponseAsync(course, parameters, onlyArchived : true).ConfigureAwait(false));
}
