Files
mixtape/zero.Core/Routing/Page/PageUrlBuilder.cs
T
2020-12-03 15:39:54 +01:00

131 lines
3.0 KiB
C#

using Raven.Client.Documents;
using Raven.Client.Documents.Session;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using zero.Core.Api;
using zero.Core.Database;
using zero.Core.Database.Indexes;
using zero.Core.Entities;
using zero.Core.Extensions;
namespace zero.Core.Routing
{
public class PageUrlBuilder : IPageUrlBuilder
{
const char PATH_SEPARATOR = '/';
const bool TRAILING_SLASH = false;
protected IZeroStore Store { get; private set; }
public PageUrlBuilder(IZeroStore store)
{
Store = store;
}
/// <inheritdoc />
public async Task<string> GetUrl(IPage page)
{
using IAsyncDocumentSession session = Store.OpenAsyncSession();
Pages_ByHierarchy.Result result = await session.Query<Pages_ByHierarchy.Result, Pages_ByHierarchy>()
.ProjectInto<Pages_ByHierarchy.Result>()
.Include<Pages_ByHierarchy.Result, IPage>(x => x.Path.Select(p => p.Id))
.FirstOrDefaultAsync(x => x.Id == page.Id);
IList<IPage> parents = (await session.LoadAsync<IPage>(result.Path.Select(x => x.Id))).Select(x => x.Value).ToList();
StringBuilder stringBuilder = new StringBuilder();
if (parents != null)
{
foreach (IPage parent in parents)
{
stringBuilder.Append(GetUrlPart(parent));
stringBuilder.Append(PATH_SEPARATOR);
}
}
stringBuilder.Append(GetUrlPart(page));
stringBuilder.Append(PATH_SEPARATOR);
if (!TRAILING_SLASH)
{
stringBuilder.Remove(stringBuilder.Length - 1, 1);
}
return stringBuilder.ToString();
}
/// <inheritdoc />
public string GetUrl(IPage page, IEnumerable<IPage> parents)
{
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.Append(PATH_SEPARATOR);
void AddPart(IPage page)
{
string part = GetUrlPart(page);
if (!part.IsNullOrEmpty())
{
stringBuilder.Append(part);
stringBuilder.Append(PATH_SEPARATOR);
}
}
if (parents != null)
{
foreach (IPage parent in parents)
{
AddPart(parent);
}
}
AddPart(page);
if (!TRAILING_SLASH && stringBuilder.Length > 1)
{
stringBuilder.Remove(stringBuilder.Length - 1, 1);
}
return stringBuilder.ToString();
}
/// <summary>
/// Get the part of the URL (by querying UrlAlias and Alias) for this page
/// </summary>
protected virtual string GetUrlPart(IPage page)
{
string alias;
if (page is PageFolder && !((PageFolder)page).IsPartOfRoute)
{
return null;
}
if (!page.UrlAlias.IsNullOrWhiteSpace())
{
alias = page.UrlAlias;
}
else if (!page.Alias.IsNullOrWhiteSpace())
{
alias = page.Alias;
}
else
{
alias = Safenames.Alias(page.Name);
}
return alias.Trim().Trim(PATH_SEPARATOR);
}
}
}