/// <summary>
/// Adds references specific to news items
/// </summary>
/// <param name="HyperMediaModel">news item dto or news item details dto to add references to</param>
/// <param name="Id">Id of news item resource to add reference to</param>
private static void AddNewsItemReferences(this HyperMediaModel HyperMediaModel, int Id, IEnumerable <NewsItemCategoryRelation> categoryRelations, IEnumerable <AuthorNewsItemRelation> authorRelations)
{
// routes needed for links
string newsItemRoute = Routes.BASE + Routes.NEWS_ITEM;
string authorRoute = Routes.BASE + Routes.AUTHORS;
string categoriesRoute = Routes.BASE + Routes.CATEGORIES;
// add get, edit and update links for actions on this resource
HyperMediaModel.AddBaseReferences(Id, newsItemRoute);
// For each author associated with resouce, add link for getting detail info on it
Func <int, string> linkAuthorByNewsItem = authorId => authorRoute + "/" + authorId;
foreach (var item in authorRelations)
{
HyperMediaModel.Links.AddToReferenceList("authors", linkAuthorByNewsItem(item.AuthorId));
}
// For each category associated with resouce, add link for getting detail info on it
Func <int, string> linkCategoryDetailByNewsItem = categoryId => categoriesRoute + "/" + categoryId;
foreach (var item in categoryRelations)
{
HyperMediaModel.Links.AddToReferenceList("categories", linkCategoryDetailByNewsItem(item.CategoryId));
}
}
/// <summary>
/// Adds self, edit and delete links for resources
/// (All these actions are supported for all types of DTOs in system)
/// </summary>
/// <param name="HyperMediaModel">Hypermedia model to add reference to self, edit and delete</param>
/// <param name="Id">Id of resource to add reference to</param>
private static void AddBaseReferences(this HyperMediaModel HyperMediaModel, int Id, string ResourseBaseRoute)
{
string RouteToResource = ResourseBaseRoute + "/" + Id.ToString();
HyperMediaModel.Links.AddReference("self", RouteToResource);
HyperMediaModel.Links.AddReference("edit", RouteToResource);
HyperMediaModel.Links.AddReference("delete", RouteToResource);
}
/// <summary>
/// Adds appropriate references to categories resources
/// </summary>
/// <param name="HyperMediaModel">category dto or category details dto to add references to</param>
/// <param name="Id">Id of category resource to add reference to</param>
private static void AddCategoryReferences(this HyperMediaModel HyperMediaModel, int Id)
{
// routes needed for links
string categoriesRoute = Routes.BASE + Routes.CATEGORIES;
// add get, edit and update links for actions on this resource
HyperMediaModel.AddBaseReferences(Id, categoriesRoute);
}
private void AddLinksToAuthorDto(HyperMediaModel a, int Id)
{
a.Links.AddReference("self", new { href = $"/api/authors/{Id}" });
a.Links.AddReference("edit", new { href = $"/api/authors/{Id}" });
a.Links.AddReference("delete", new { href = $"/api/authors/{Id}" });
a.Links.AddReference("newsItems", new { href = $"/api/authors/{Id}/newsItems" });
a.Links.AddListReference("newsItemsDetailed",
_newsItemRepository.GetNewsItemsByAuthorId(Id).Select(n => new { href = $"/api/{n.Id}" }));
}
private void AddLinksToNewsItems(HyperMediaModel n, int id)
{
n.Links.AddReference("self", new { href = $"/api/{id}" });
n.Links.AddReference("edit", new { href = $"/api/{id}" });
n.Links.AddReference("delete", new { href = $"/api/{id}" });
n.Links.AddListReference("authors",
_authorRepository.GetAuthorsByNewsItemId(id).Select(a =>
new { href = $"/api/authors/{a.AuthorId}" }));
n.Links.AddListReference("categories", _categoryRepository.GetCategoryByNewsItemId(id).Select(c =>
new { href = $"/api/categories/{c.CategoryId}" }));
}
/// <summary>
/// Adds references to authors resources
/// Needs list on author news item relations so that news items for authors are correctly referenced
/// </summary>
/// <param name="HyperMediaModel">author dto or author details dto to add references to</param>
/// <param name="Id">Id of author resource to add reference to</param>
/// <param name="newsItems">All news items associated with author</param>
private static void AddAuthorReferences(this HyperMediaModel HyperMediaModel, int Id, IEnumerable <AuthorNewsItemRelation> newsItems)
{
// routes needed for links
string newsItemRoute = Routes.BASE + Routes.NEWS_ITEM;
string authorRoute = Routes.BASE + Routes.AUTHORS;
// add get, edit and update links for actions on this resource
HyperMediaModel.AddBaseReferences(Id, authorRoute);
// add links to get list of all authored items for this resource
string linkToAllAuthoredNewsItems = authorRoute + "/" + Id + "/newsItems";
HyperMediaModel.Links.AddReference("newsItems", linkToAllAuthoredNewsItems);
// add links to get a detail info of news item related to this resource
Func <int, string> linkNewsItemDetailByAuthor = newsItemId => newsItemRoute + "/" + newsItemId;
foreach (var item in newsItems)
{
HyperMediaModel.Links.AddToReferenceList("newsItemsDetailed", linkNewsItemDetailByAuthor(item.NewsItemId));
}
}
private void AddLinksToCategory(HyperMediaModel category, int id)
{
category.Links.AddReference("self", new { href = $"/api/categories/{id})" });
category.Links.AddReference("edit", new { href = $"/api/categories/{id})" });
category.Links.AddReference("delete", new { href = $"/api/categories/{id})" });
}
