public ActionResult <IEnumerable <AuthorDto> > GetAuthors(
[FromQuery] AuthorsResourseParameters authorsResourseParameters)
{
var authors = this.courseLibraryRepository.GetAuthors(authorsResourseParameters);
return(Ok(this.mapper.Map <IEnumerable <AuthorDto> >(authors)));
}
public IEnumerable <Author> GetAuthors(AuthorsResourseParameters authorsResourseParameters)
{
if (authorsResourseParameters == null)
{
throw new ArgumentNullException(nameof(authorsResourseParameters));
}
string mainCategory = authorsResourseParameters.MainCategory;
string searchQuery = authorsResourseParameters.SearchQuery;
if (string.IsNullOrEmpty(mainCategory) &&
string.IsNullOrEmpty(searchQuery))
{
return(GetAuthors());
}
//DEFERRED EXECUTION
var authors = _context.Authors as IQueryable <Author>;
if (!string.IsNullOrEmpty(mainCategory))
{
authors = authors.Where(author => author.MainCategory == mainCategory.Trim());
}
if (!string.IsNullOrEmpty(searchQuery))
{
searchQuery = searchQuery.Trim();
authors = authors.Where(author => author.MainCategory.Contains(searchQuery) ||
author.FirstName.Contains(searchQuery) ||
author.LastName.Contains(searchQuery));
}
return(authors.ToList());
}
public IEnumerable <Author> GetAuthors(AuthorsResourseParameters authorsResourseParameters)
{
if (authorsResourseParameters is null)
{
throw new ArgumentNullException(nameof(authorsResourseParameters));
}
if (string.IsNullOrWhiteSpace(authorsResourseParameters.MainCategory) &&
string.IsNullOrWhiteSpace(authorsResourseParameters.SearchQuery))
{
return(GetAuthors());
}
var collection = _context.Authors.AsQueryable <Author>();
if (!string.IsNullOrWhiteSpace(authorsResourseParameters.MainCategory))
{
var mainCategory = authorsResourseParameters.MainCategory.Trim();
collection = collection.Where(a => a.MainCategory == mainCategory);
}
if (!string.IsNullOrWhiteSpace(authorsResourseParameters.SearchQuery))
{
var searchQuery = authorsResourseParameters.SearchQuery.Trim();
collection = collection.Where(a => a.MainCategory.Contains(searchQuery) ||
a.FirstName.Contains(searchQuery) ||
a.LastName.Contains(searchQuery));
}
return(collection.ToList());
}
[HttpHead] // Response only headers with any information
public IActionResult GetAuthors([FromQuery] AuthorsResourseParameters authorsResourseParameters) // Must implement "From" annotation, because class it`s a complex parameter
{
/*
* https://localhost:5001/api/authors?maincategory=singing&SearchQuery=arnold or https://localhost:5001/api/authors
*/
var authorEntities = this._repos.GetAuthors(authorsResourseParameters);
var authorDtos = this._mapper.Map <IEnumerable <AuthorDto> >(authorEntities);
return(Ok(authorDtos)); // we can use 'new JsonResult(authors);' but will be returned a default Ok status code.
}
