public async Task <IssueChangeResponse> ReorderIssueAsync(IssueReorder issueReorder)
{
var result = await _httpClient.PostAsyncEx <IssueChangeResponse, IssueReorder>("api/issue/reorder", issueReorder, $"Reorder issue");
OnStateChanged?.Invoke(this, result.AppState);
return(result);
}
public async Task <IssueChangeResponse> Reorder(IssueReorder issueReorder)
{
return(await _issueService.ReorderAsync(issueReorder, _authUser.Id));
}
public async Task <IssueChangeResponse> ReorderAsync(IssueReorder issueReorder, int userId)
{
if (issueReorder.Id == issueReorder.TargetId)
{
return(new IssueChangeResponse());
}
//remove from old position
var exist = await _appDbContext.Issues.Include(p => p.Stage).SingleOrDefaultAsync(p => p.Id == issueReorder.Id);
if (exist?.Stage == null || exist.Stage.UserId != userId)
{
return new IssueChangeResponse()
{
ErrorMessage = "Issue not found"
}
}
;
if (exist.StageId != issueReorder.NewStageId)
{
var existStage = await _appDbContext.Stages.FindAsync(issueReorder.NewStageId);
if (existStage != null && existStage.UserId != userId)
{
return new IssueChangeResponse()
{
ErrorMessage = "Issue not found"
}
}
;
}
var prevIssue = await _appDbContext.Issues.SingleOrDefaultAsync(p => p.NextIssueId == issueReorder.Id);
if (prevIssue != null)
{
prevIssue.NextIssueId = exist.NextIssueId;
}
//insert to new position
exist.StageId = issueReorder.NewStageId;
if (issueReorder.TargetId == 0)
{
var allNextIds = await _appDbContext.Issues.Where(p => p.StageId == issueReorder.NewStageId &&
p.NextIssueId.HasValue)
.Select(p => p.NextIssueId.Value).ToListAsync();
var first = await _appDbContext.Issues.SingleOrDefaultAsync(p => !allNextIds.Contains(p.Id) &&
p.StageId == issueReorder.NewStageId);
if (first != null)
{
exist.NextIssueId = first.Id;
}
}
else
{
var targetIssue = await _appDbContext.Issues.Include(p => p.Stage).SingleOrDefaultAsync(p => p.Id == issueReorder.TargetId);
if (targetIssue == null || targetIssue.Stage == null || targetIssue.Stage.UserId != userId)
{
return new IssueChangeResponse()
{
ErrorMessage = "Issue not found"
}
}
;
exist.NextIssueId = targetIssue.NextIssueId;
targetIssue.NextIssueId = exist.Id;
}
await _appDbContext.SaveChangesAsync();
return(new IssueChangeResponse());
}
}
}
