ru.org.linux.topic.LastMiniNewsDao.java Source code

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Here is the source code for ru.org.linux.topic.LastMiniNewsDao.java

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/*
 * Copyright 1998-2015 Linux.org.ru
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

package ru.org.linux.topic;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.stereotype.Repository;
import ru.org.linux.section.SectionService;

import java.io.Serializable;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Timestamp;
import java.util.List;

/**
 */
@Repository
public class LastMiniNewsDao {
    @Autowired
    private SectionService sectionService;

    @Autowired
    private JdbcTemplate jdbcTemplate;

    public List<LastMiniNews> getTopics(final int perPage) {
        String sql = "select topics.id as msgid, groups.urlname, groups.section, topics.title, lastmod, topics.stat1 as c  "
                + "from topics " + "join groups on groups.id = topics.groupid" + " where "
                + "  topics.postdate>(CURRENT_TIMESTAMP-'1 month 1 day'::interval) and " + //  ? ??
                "  not deleted and " + // ?
                "  groups.section = 1 and topics.moderate and commitdate is not null and not draft " + // ??
                "  and minor order by topics.commitdate desc limit 10"; // 10 

        return jdbcTemplate.query(sql, new RowMapper<LastMiniNews>() {
            @Override
            public LastMiniNews mapRow(ResultSet rs, int i) throws SQLException {
                final int answers = rs.getInt("c");
                final int answers0 = (answers == 0) ? 1 : answers;
                final int tmp = answers0 / perPage;
                final int pages = (answers0 % perPage > 0) ? tmp + 1 : tmp;
                LastMiniNews result = new LastMiniNews(
                        sectionService.getSection(rs.getInt("section")).getSectionLink() + rs.getString("urlname")
                                + '/' + rs.getInt("msgid"),
                        rs.getTimestamp("lastmod"), rs.getString("title"), answers, pages);
                return result;
            }
        });

    }

    public static class LastMiniNews implements Serializable {
        private final String url;
        private final Timestamp lastmod;
        private final String title;
        private final int answers;
        private final int pages;

        public LastMiniNews(String url, Timestamp lastmod, String title, int answers, int pages) {
            this.url = url;
            this.lastmod = lastmod;
            this.title = title;
            this.answers = answers;
            this.pages = pages;
        }

        public String getUrl() {
            return url;
        }

        public Timestamp getLastmod() {
            return lastmod;
        }

        public String getTitle() {
            return title;
        }

        public Integer getAnswers() {
            return answers;
        }

        public int getPages() {
            return pages;
        }
    }

}