private List <ChapterDataModel> LoadChapters()
{
using (BookDataContext context = BookDataContext.Connect())
{
var chaptersInBook =
from chapter in context.Chapters
where chapter.BookID == BookId
orderby chapter.TokenID
select chapter;
var source = new List <ChapterDataModel>();
foreach (ChapterModel chapterModel in chaptersInBook)
{
int tokenID = chapterModel.TokenID;
var chapter = new ChapterDataModel
{
Depth = chapterModel.Level,
Title = chapterModel.Title.Trim(),
TokenId = tokenID
};
source.Add(chapter);
}
return(source);
}
}
public static ChapterDataModel GetChapterModelForEdit(Document opus, int?chapterId, Action <Element> saveNewChapter)
{
// we read chapter by chapter, which is the first level in the hierarchy by definition
var chapters = opus.Children.OfType <Section>().OrderBy(c => c.OrderNr).ToList();
Element currentChapter = null;
Element prevChapter = null;
Element nextChapter = null;
IEnumerable <SnippetDataModel> run = null;
if (chapterId.HasValue && chapters.Any())
{
currentChapter = chapters.SingleOrDefault(c => c.Id == chapterId);
if (currentChapter == null) // If chapter was deleted.
{
currentChapter = chapters.Last();
}
}
if (!chapterId.HasValue && chapters.Any())
{
currentChapter = chapters.First();
}
if (currentChapter != null)
{
// take tha chapters content for view
run = FlattenHierarchy(currentChapter);
// take prev and next from index
var idx = chapters.FindIndex(c => c.Id == currentChapter.Id);
prevChapter = chapters.ElementAtOrDefault(idx - 1);
nextChapter = chapters.ElementAtOrDefault(idx + 1);
}
else
{
// Create the first chapter on the fly and add to the DB immediately
currentChapter = new Section {
Parent = opus, Name = "Chapter 1", OrderNr = 1, Content = System.Text.Encoding.UTF8.GetBytes("Chapter 1")
};
saveNewChapter(currentChapter);
run = new List <SnippetDataModel>(new[] { new SnippetDataModel {
CurrentSnippet = currentChapter,
ChapterId = currentChapter.Id,
SnippetTitle = currentChapter.Name,
CanDown = false,
CanUp = false
} });
}
var rm = new ChapterDataModel {
DocumentId = opus.Id,
GenericChapterNumber = currentChapter.OrderNr,
CurrentChapter = currentChapter,
ChapterElements = run,
ChapterTitle = currentChapter.RawContent.Ellipsis(40).ToHtmlString(),
PreviousChapter = prevChapter,
PreviousChapterTitle = (prevChapter == null) ? "" : prevChapter.Name,
NextChapter = nextChapter,
NextChapterTitle = (nextChapter == null) ? "" : nextChapter.Name,
};
return(rm);
}
public void GoToChapter(ChapterDataModel chapter)
{
_navigationService.UriFor <ReadPageViewModel>()
.WithParam(vm => vm.BookId, BookId)
.WithParam(vm => vm.TokenOffset, chapter.TokenId)
.WithParam(vm => vm.CatalogId, CatalogId)
.WithParam(vm => vm.CatalogBookItemKey, TransientStorage.Put(CatalogBookItemModel))
.Navigate();
}
