/*
* This file is part of anycook. The new internet cookbook
* Copyright (C) 2014 Jan Graßegger
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see [http://www.gnu.org/licenses/].
*/
package de.anycook.db.mysql;
import de.anycook.recipe.Recipe;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.List;
/**
* Von DBHandler abgeleitet. Enthaelt alle Funktionen, die fuer die Entdeckenseite zustaendig sind.
*
* @author Jan Grassegger
* @see de.anycook.db.mysql.DBHandler
*/
public class DBDiscover extends DBRecipe {
public DBDiscover() throws SQLException {
super();
}
public List<Recipe> getTastyRecipes(int offset, int num, int loginId) throws SQLException {
PreparedStatement preparedStatement =
connection.prepareCall("SELECT versions.id AS id, beschreibung, " +
"IFNULL(versions.imagename, CONCAT('category/', kategorien.image)) AS image, " +
"gerichte.eingefuegt AS created, min, std, skill, kalorien, gerichte.name AS name, " +
"personen, kategorien_name, active_id, users_id, nickname, users.image, " +
"viewed, last_change, " +
"(SELECT COUNT(users_id) FROM schmeckt WHERE schmeckt.gerichte_name = gerichte.name) AS counter, " +
"(SELECT COUNT(users_id) FROM schmeckt WHERE schmeckt.gerichte_name = gerichte.name " +
"AND schmeckt.users_id = ?) AS tastes " +
"FROM gerichte " +
"INNER JOIN versions ON gerichte.name = gerichte_name AND active_id = versions.id " +
"INNER JOIN users ON users_id = users.id " +
"INNER JOIN kategorien ON kategorien_name = kategorien.name " +
"GROUP BY gerichte.name ORDER BY counter DESC LIMIT ?,?;");
preparedStatement.setInt(1, loginId);
preparedStatement.setInt(2, offset);
preparedStatement.setInt(3, num);
ResultSet data = preparedStatement.executeQuery();
return getRecipes(data);
}
/**
* Gibt Liste mit den zehn neusten Gerichten zurueck
*
* @return List mit den neusten Gerichten
*/
public List<Recipe> getNewestRecipes(int offset, int num, int loginId) throws SQLException {
PreparedStatement preparedStatement =
connection.prepareStatement("SELECT versions.id AS id, beschreibung, " +
"IFNULL(versions.imagename, CONCAT('category/', kategorien.image)) AS image, " +
"gerichte.eingefuegt AS created, min, std, skill, kalorien, gerichte.name AS name, personen, " +
"kategorien_name, active_id, users_id, nickname, users.image, viewed, last_change, " +
"(SELECT IF(COUNT(users_id) = 1, TRUE, FALSE) FROM schmeckt " +
"WHERE schmeckt.gerichte_name = gerichte.name AND schmeckt.users_id = ?) AS tastes " +
"FROM gerichte " +
"INNER JOIN versions ON gerichte.name = gerichte_name AND active_id = versions.id " +
"INNER JOIN users ON users_id = users.id " +
"INNER JOIN kategorien ON kategorien_name = kategorien.name " +
"GROUP BY gerichte.name ORDER BY gerichte.eingefuegt DESC LIMIT ?,?;");
preparedStatement.setInt(1, loginId);
preparedStatement.setInt(2, offset);
preparedStatement.setInt(3, num);
ResultSet data = preparedStatement.executeQuery();
return getRecipes(data);
}
/**
* Gibt Liste mit den zehn am meissten angeklickten Rezepten zurueck
*
* @return List mit den beliebtesten Gerichten
*/
public List<Recipe> getPopularRecipes(int offset, int num, int loginId) throws SQLException {
PreparedStatement preparedStatement =
connection.prepareStatement("SELECT versions.id AS id, beschreibung, " +
"IFNULL(versions.imagename, CONCAT('category/', kategorien.image)) AS image, " +
"gerichte.eingefuegt AS created, min, std, skill, kalorien, gerichte.name, personen, kategorien_name, "+
"active_id, users_id, nickname, users.image, viewed, last_change, " +
"(SELECT COUNT(users_id) FROM schmeckt " +
"WHERE schmeckt.gerichte_name = gerichte.name AND schmeckt.users_id = ?) AS tastes " +
"FROM gerichte " +
"INNER JOIN versions ON gerichte.name = gerichte_name AND active_id = versions.id " +
"INNER JOIN users ON users_id = users.id " +
"INNER JOIN kategorien ON kategorien_name = kategorien.name " +
"GROUP BY gerichte.name ORDER BY viewed DESC LIMIT ?,?;");
preparedStatement.setInt(1, loginId);
preparedStatement.setInt(2, offset);
preparedStatement.setInt(3, num);
ResultSet data = preparedStatement.executeQuery();
return getRecipes(data);
}
}