public async Task <List <NewsItemSource> > GetNews(FilterNewsDto filterNewsDto)
{
List <ContentDto> news = (await _oDataClient.For <ContentDto>("Contents")
.Action("GetNews")
.Set(filterNewsDto)
.ExecuteAsEnumerableAsync()).ToList();
List <NewsItemSource> newsItemSources = new List <NewsItemSource>();
foreach (ContentDto item in news)
{
newsItemSources.Add(new NewsItemSource
{
Date = item.Date,
Text = StripHTML(item.Text),
Id = item.Id,
Image = ImageSource.FromUri(new System.Uri(item.Photo)),
NewsID = item.NewsID,
Photo = item.Photo,
Likes = item.Likes,
Visits = item.Visits,
Title = item.Title,
YourLike = item.YourLike
});
}
return(newsItemSources);
}
public async Task <IEnumerable <ContentDto> > GetNews(FilterNewsDto filterNewsDto)
{
if (httpClient == null)
{
httpClient = HttpClientFactory.CreateClient("SoltaniHttpClient");
}
filterNewsDto.Page = 1;
string json = JsonConvert.SerializeObject(filterNewsDto, Formatting.None,
new JsonSerializerSettings
{
NullValueHandling = NullValueHandling.Ignore
});
HttpResponseMessage result = await httpClient.PostAsync("GetNewsList", new StringContent(json, UnicodeEncoding.UTF8, "application/json"));
if (result.IsSuccessStatusCode)
{
NewsList newsList = JsonConvert.DeserializeObject <NewsList>(await result.Content.ReadAsStringAsync());
return(newsList.Items);
}
else
{
throw new Exception(result.ReasonPhrase);
}
}
public ContentListViewModel(IODataClient oDataClient, IUserDialogs userDialogs, INewsService newsService, IInitialDataService initialDataService, IEventAggregator eventAggregator, IPageDialogService dialogService)
{
_oDataClient = oDataClient;
_userDialogs = userDialogs;
_newsService = newsService;
_initialDataService = initialDataService;
ShowContent = new BitDelegateCommand <NewsItemSource>(async(content) =>
{
INavigationParameters parameters = new NavigationParameters();
parameters.Add("NewsId", content.NewsID);
await NavigationService.NavigateAsync(nameof(ShowContentView), parameters);
});
FilterContent = new BitDelegateCommand(async() =>
{
FilterDto.Month = SelectedMonth?.Number;
FilterDto.Year = SelectedYear?.Number;
if (FilterDto.Month != null || FilterDto.Year != null)
{
if (FilterDto.Month == null || FilterDto.Year == null)
{
await dialogService.DisplayAlertAsync(ConstantStrings.Error, ConstantStrings.NewsFilterNotValid, ConstantStrings.Ok);
SelectedYear = null;
SelectedMonth = null;
return;
}
}
contentCancellationTokenSource?.Cancel();
contentCancellationTokenSource = new CancellationTokenSource();
using (_userDialogs.Loading(ConstantStrings.Loading, cancelText: ConstantStrings.Loading_Cancel, onCancel: contentCancellationTokenSource.Cancel))
{
await loadContents(FilterDto);
}
eventAggregator.GetEvent <OpenNewsFilterPopupEvent>().Publish(new OpenNewsFilterPopupEvent());
FilterDto = new FilterNewsDto();
SelectedYear = null;
SelectedMonth = null;
});
OpenFilterPopup = new BitDelegateCommand(async() =>
{
eventAggregator.GetEvent <OpenNewsFilterPopupEvent>().Publish(new OpenNewsFilterPopupEvent());
});
}
public async Task loadContents(FilterNewsDto filterNewsDto)
{
if (SelectedMonth != null)
{
filterNewsDto.Month = SelectedMonth.Number;
}
if (SelectedYear != null)
{
filterNewsDto.Year = SelectedYear.Number;
}
List <NewsItemSource> contents = await _newsService.GetNews(filterNewsDto);
if (contents != null)
{
Contents = new ObservableCollection <NewsItemSource>(contents);
}
}
public async Task <IEnumerable <ContentDto> > GetNews([FromBody] FilterNewsDto filterNewsDto)
{
return(await ExternalApiService.GetNews(filterNewsDto));
}
