public void Can_Filter_BlogPosts_By_Tag()
{
// Arrange: Given a series of blogposts with tags associated, a repository and a blog controller
var tag = new Tag {TagID = 1, Name = "tag 1"};
var tag2 = new Tag {TagID = 2, Name = "tag 2"};
var blogPost = new BlogPost {ContentID = 1};
var blogPost2 = new BlogPost() {ContentID = 2};
var blogPost3 = new BlogPost() {ContentID = 3};
blogPost.Tags.Add(tag);
blogPost2.Tags.Add(tag2);
blogPost3.Tags.Add(tag);
blogPost3.Tags.Add(tag2);
// mock blog post repository
var moqBlogPostRepository = UnitTestHelpers.MockBlogPostRepositoryReturnsMoqObject(blogPost, blogPost2, blogPost3);
moqBlogPostRepository.
Setup(x => x.GetQueryableBlogPostByTagName(tag.Name)). // when a user wants to filter by tag
Returns((new List<BlogPost> {blogPost, blogPost3}).AsQueryable()); // They will obtain the filtered blogposts
var controller = new BlogController(moqBlogPostRepository.Object);
// Act: when the user clicks on a tag
var result = controller.Tag("tag-1");
// Assert: the result will be a view with a list of blogposts filtered by tag
var model = ((BlogPostViewModel) result.ViewData.Model).BlogPostPagedList;
model.Count.ShouldEqual(2);
model.Single(x => x.ContentID == 1).ContentID.ShouldEqual(1);
model.Single(x => x.ContentID == 3).ContentID.ShouldEqual(3);
Assert.IsNull(model.FirstOrDefault(x => x.ContentID == 2));
}
public void GivenASeriesOfTags()
{
Tag1 = new Tag {Name = "tag 1", TagID = 1};
Tag2 = new Tag {Name = "tag 2", TagID = 2};
Tag3 = new Tag {Name = "tag 3", TagID = 3};
Tag4 = new Tag {Name = "tag 4", TagID = 4};
Post1 = new BlogPost {ContentID = 1};
Post2 = new BlogPost {ContentID = 2};
Tag1.ContentContainers.Add(Post1);
Tag1.ContentContainers.Add(Post2);
Tag2.ContentContainers.Add(Post1);
}
/// <summary>
/// obtains the tag detail
/// </summary>
/// <param name="id">identifier of tag</param>
/// <returns>returns the result to action</returns>
public ActionResult Detail(int?id)
{
TagRepository objtag = new TagRepository(SessionCustom);
Domain.Entities.Tag tag = null;
if (id != null)
{
objtag.Entity.TagId = id;
objtag.Load();
tag = objtag.Entity;
ViewBag.id = id;
}
return(this.View(new Tags()
{
UserPrincipal = CustomUser,
Module = this.Module,
TagCustom = tag,
ColModul = CustomMemberShipProvider.GetModuls(CustomUser.UserId, SessionCustom, HttpContext),
CurrentLanguage = CurrentLanguage
}));
}
/// <summary>
/// Manages the tags from the list of tags, Extracts the tags from the comma separated list of tags
/// and obtains the equivalent Tag object, either from the database, or it creates a new one
/// </summary>
/// <param name="listOfTags"></param>
/// <returns></returns>
private IEnumerable<Tag> ManageTagsFromListOfTags(IEnumerable<string> listOfTags)
{
List<Tag> tags = new List<Tag>();
foreach (string tagString in listOfTags)
{
// looks in the database to see if the tag already exists
Tag tag = _context.Tags.FirstOrDefault(x => x.Name == tagString);
// if it doesn't it creates a new tag
if (tag == null)
{
tag = new Tag { Name = tagString };
_context.Tags.AddObject(tag);
}
tags.Add(tag);
}
return tags;
}
/// <summary>
/// Adds a tag to the context
/// </summary>
/// <param name="tag"></param>
public void AddTag(Tag tag)
{
GetUnitOfWork.Tags.AddObject(tag);
}
public static MvcHtmlString TagLink(this HtmlHelper helper, Tag tag)
{
return helper.ActionLink(tag.Name, "Tag", "Post", new { tagSlug = tag.UrlSlug },
new { title = String.Format("See all posts in {0}", tag.Name) });
}
public ActionResult Tags(Tag tag)
{
if (ModelState.IsValid)
{
// add to context
BlogPostRepo.AddTag(tag);
// submit changes
// BlogPostRepo.SubmitChanges();
// redirect to category management index
TempData[vinCMS.Infraestructure.Constants.VIEW_MESSAGE] = SUCCESS_TAG_ADD;
return RedirectToAction("tags");
}
else
{
// return the same view
var tagViewModel = new AdminTagViewModel
{
NewTag = tag,
PagedListTags = new PagedList.StaticPagedList<Tag>(
BlogPostRepo.GetQueryableOrderedTags().Skip(0).Take(TAGS_PER_PAGE).ToList(),
0,
TAGS_PER_PAGE,
BlogPostRepo.GetQueryableTags().Count()
)
};
// the view will show a series of validation error messages
return View(tagViewModel);
}
}
