public ActionResult Details(int id)
{
// Opening connection
NpgsqlConnection connection = new NpgsqlConnection("Server=127.0.0.1;User Id=postgres;Password="******";Database=project;");
connection.Open();
// Getting required article
Article current = new Article();
NpgsqlCommand command = new NpgsqlCommand("SELECT articles.id, articles.title, publications.name, articles.description, articles.mdurl, articles.pdf, string_agg(DISTINCT authors.name, ';'), string_agg(DISTINCT thesaurus_terms.text, ';') " +
"FROM articles " +
"INNER JOIN authors_of_article ON articles.id = authors_of_article.article_id " +
"INNER JOIN authors ON authors_of_article.author_id = authors.id " +
"INNER JOIN publications ON articles.publication_id = publications.id " +
"INNER JOIN thesaurus_terms_in_article ON articles.id = thesaurus_terms_in_article.article_id " +
"INNER JOIN thesaurus_terms ON thesaurus_terms_in_article.thesaurus_term_id = thesaurus_terms.id " +
"WHERE articles.id = " + id + " " +
"GROUP BY articles.id, articles.title, publications.name, articles.description, articles.mdurl, articles.pdf", connection);
NpgsqlDataReader reader = command.ExecuteReader();
if(reader.Read())
{
current.ID = (int)reader[0];
current.Title = (string)reader[1];
current.Publication = (string)reader[2];
current.Description = (string)reader[3];
current.MDURL = (string)reader[4];
current.PDF = (string)reader[5];
current.Authors = (string)reader[6];
current.Terms = (string)reader[7];
}
ViewBag.Article = current;
return View();
}
public ActionResult Index(string searchString, string searchMode)
{
// JS protection
searchString = HttpUtility.HtmlEncode(searchString);
// Opening connection
NpgsqlConnection connection = new NpgsqlConnection("Server=127.0.0.1;User Id=postgres;Password="******";Database=project;");
connection.Open();
// Find required articles
List<Article> articles = new List<Article>();
if (searchString != string.Empty & searchString != null)
{
// Select search mode from drop down list
string mode = string.Empty;
switch(searchMode)
{
case "All":
mode = "WHERE articles.title LIKE '%" + searchString + "%' " +
"OR authors.name LIKE '%" + searchString + "%' " +
"OR publications.name LIKE '%" + searchString + "%' " +
"GROUP BY articles.id, articles.title, publications.name";
break;
case "Author":
mode = "GROUP BY articles.id, articles.title, publications.name " +
"HAVING string_agg(authors.name,';') LIKE '%" + searchString + "%'";
break;
case "Publication":
mode = "WHERE publications.name LIKE '%" + searchString + "%' " +
"GROUP BY articles.id, articles.title, publications.name";
break;
case "Article":
mode = "WHERE articles.title LIKE '%" + searchString + "%' " +
"GROUP BY articles.id, articles.title, publications.name";
break;
case "Term":
mode = "WHERE thesaurus_terms.text LIKE '%" + searchString + "%' " +
"GROUP BY articles.id, articles.title, publications.name";
break;
}
// Execute querry
NpgsqlCommand command = new NpgsqlCommand("SELECT articles.id, articles.title, publications.name, string_agg(DISTINCT authors.name,';'), string_agg(DISTINCT thesaurus_terms.text, ';') " +
"FROM articles " +
"INNER JOIN authors_of_article ON articles.id = authors_of_article.article_id " +
"INNER JOIN authors ON authors_of_article.author_id = authors.id " +
"INNER JOIN publications ON articles.publication_id = publications.id " +
"INNER JOIN thesaurus_terms_in_article ON articles.id = thesaurus_terms_in_article.article_id " +
"INNER JOIN thesaurus_terms ON thesaurus_terms_in_article.thesaurus_term_id = thesaurus_terms.id " +
mode, connection);
NpgsqlDataReader reader = command.ExecuteReader();
// Read the data
while(reader.Read())
{
Article current = new Article();
current.ID = (int)reader[0];
current.Title = (string)reader[1];
current.Publication = (string)reader[2];
current.Authors = (string)reader[3];
current.Terms = (string)reader[4];
articles.Add(current);
}
}
return View(articles);
}
