/// <summary>
/// TODO: This method should be deprecated - it is only needed to support older websites where this page list functionality is required.
/// Older websites should be updated, so that this method can be removed. Once removed:
/// long pageListPageId = await GetPageListPageId(settings, context);
/// Can be replaced with:
/// long pageListPageId = settings.PageId ?? context.PageId;
/// </summary>
/// <param name="settings">Element settings.</param>
/// <param name="context">Page context.</param>
/// <returns>ID of page whose child pages are enumerated.</returns>
private async Task <long> GetPageListPageId(PageListElementSettings settings, IPageContext context)
{
// If page list page ID is not specified in settings (i.e. is determined by page context) and the page is a document, then return document's parent folder
if (settings.PageId == null)
{
Page pageListPage = await _pageService.ReadPageAsync(settings.TenantId, context.PageId);
MasterPage masterPage = await _masterPageService.ReadMasterPageAsync(settings.TenantId, pageListPage.MasterPageId);
if (masterPage.PageType == PageType.Document)
{
return(pageListPage.ParentPageId.Value);
}
return(pageListPage.PageId);
}
// Otherwise, return specified page
return(settings.PageId.Value);
}
private PageListPager GetPager(int pageIndex, PageListResult result, PageListElementSettings elementSettings)
{
if (!elementSettings.ShowPager)
{
return(null);
}
int pageCount = ((result.Total - 1) / elementSettings.PageSize) + 1;
if (pageCount < 2)
{
return(null);
}
return(new PageListPager
{
PageCount = pageCount,
PageIndex = pageIndex,
PageSize = elementSettings.PageSize,
Total = result.Total
});
}
public async Task <IElementView <PageListElementSettings, PageListElementContent> > ReadElementViewAsync(long tenantId, long elementId, IPageContext context)
{
PageListElementSettings settings = await _elementRepository.ReadElementSettingsAsync(tenantId, elementId);
if (settings == null)
{
return(null);
}
int pageIndex = 1;
if (context.Parameters != null && context.Parameters.ContainsKey("page"))
{
Int32.TryParse(context.Parameters["page"], out pageIndex);
}
pageIndex = pageIndex - 1;
IEnumerable <Tag> tags = null;
if (context.TagIds != null)
{
tags = await _tagService.ListTagsAsync(tenantId, context.TagIds);
}
PageListPageLink currentPageLink = null;
if (settings.ShowTags)
{
currentPageLink = await GetPageListPageLinkAsync(tenantId, context.PageId);
}
PageListPageLink morePageLink = null;
long pageListPageId = await GetPageListPageId(settings, context);
bool displayMorePageLink = settings.MoreMessage != null && context.PageId != pageListPageId;
if (displayMorePageLink)
{
morePageLink = await GetPageListPageLinkAsync(tenantId, pageListPageId);
}
PageListResult result = await _pageService.ListPagesAsync(tenantId, pageListPageId, settings.Recursive, settings.PageType, context.TagIds, settings.SortBy, settings.SortAsc, pageIndex, settings.PageSize);
IDictionary <long, BlobImage> blobsById = null;
if (settings.ShowImage || settings.ShowBackgroundImage)
{
IEnumerable <long> blobIds = result.Pages.Where(p => p.ThumbnailImageBlobId.HasValue).Select(p => p.ThumbnailImageBlobId.Value);
IEnumerable <Blob> blobs = await _storageService.ListBlobsAsync(tenantId, blobIds);
blobsById = blobs.ToDictionary(b => b.BlobId, b => (BlobImage)b);
}
PageListElementContent content = new PageListElementContent
{
CurrentPage = currentPageLink,
MorePage = morePageLink,
DisplayName = GetContentDisplayName(settings.DisplayName, tags),
MoreMessage = displayMorePageLink ? settings.MoreMessage : null,
NoPagesMessage = settings.NoPagesMessage != null && !result.Pages.Any() ? settings.NoPagesMessage : null,
Pages = result.Pages.Select(p => new PageListPage
{
Name = p.Name,
PageId = p.PageId,
Home = !p.ParentPageId.HasValue,
Description = settings.ShowDescription ? p.Description : null,
Created = settings.ShowCreated ? (DateTime?)p.Created : null,
Updated = settings.ShowUpdated && !(settings.ShowCreated && (p.Created.Date == p.Updated.Date)) ? (DateTime?)p.Updated : null,
Occurred = settings.ShowOccurred && p.Occurred.HasValue ? p.Occurred : null,
OccursInFuture = settings.ShowOccurred && p.Occurred.HasValue ? p.Occurred.Value.Date > DateTime.UtcNow.Date : false,
BackgroundImage = settings.ShowBackgroundImage ? GetImage(p, blobsById) : null,
Image = settings.ShowImage ? GetImage(p, blobsById) : null,
Tags = settings.ShowTags ? p.Tags : new List <Tag>()
}),
Pager = GetPager(pageIndex, result, settings),
Tags = tags
};
return(new ElementView <PageListElementSettings, PageListElementContent>
{
Settings = settings,
Content = content
});
}
