www.x-motion.cn/Application/Common/Model/HomeNewModel.class.php

<?php
namespace Common\Model;

use Common\Model\BaseModel;

/**
 * 官网新闻
 * @author: linch
 * Class HomeNewModel
 * @package Common\Model
 */
class HomeNewModel extends BaseModel
{
    //软删状态
    const status_del = 0;     //删除
    const status_on = 1;      //正常
    const status_off = 2;     //下架

    //推荐状态
    const recommend_off = 0;    //不推荐
    const recommend_on = 1;     //推荐

    //类型
    const type_industry = 1;    //行业动态
    const type_company = 2;     //公司动态
    const type_join = 3;        //加盟动态

    //顶部banner
    const banner_off = 0;       //关闭
    const banner_on = 1;        //开启

    protected $mod;

    public function __construct() {
        parent::__construct();
        $this->mod = M('home_new');
    }

    /**
     * 获取类型列表
     * @author: linch
     * @return array
     */
    public function get_type_list() {
        return array(
            self::type_industry => '行业动态',
            self::type_company  => '公司动态',
            self::type_join     => '加盟动态',
        );
    }

    /**
     * 获取数据
     * @author: linch
     * @param $search
     * @param $page_num
     * @param $page_size
     * @return array
     */
    public function get_data($search, $page_num, $page_size) {
        $where = array(
            'status' => self::status_on,
        );
        if (!empty($search['type'])) {
            $where['type'] = $search['type'];
        }
        if (!empty($search['store_id'])) {
            $where['store_id'] = $search['store_id'];
        }
        $order = 'id desc';
        $limit = ($page_num - 1) * $page_size . ' ,' . $page_size;
        $field = '*';
        $list = $this->where($where)->order($order)->field($field)->limit($limit)->select();
        $count = $this->where($where)->count();
        $Page = new \Common\Common\util\PageO($count, $page_size);
        $pager = $Page->show();
        $data = array(
            'list'  => $list,
            'count' => $count,
            'pager' => $pager,
        );
        return $data;
    }

    /**
     * 获取推荐
     * @author: linch
     */
    public function get_recommend() {
        $where = array('status' => self::status_on, 'is_recommend' => self::recommend_on);
        $order = 'id desc';
        $limit = '3';
        $recommend = $this->where($where)->order($order)->limit($limit)->select();
        return $recommend;
    }

    /**
     * 获取banner新闻
     * @author: linch
     * @return array
     */
    public function get_banner_data() {
        $where = array('status' => self::status_on, 'is_banner' => self::banner_on);
        $order = array('id desc');
        $data = $this->where($where)->order($order)->find();
        return $data;
    }

    /**
     * 获取下一篇文章，循环制，只有一篇时终止
     * @author: linch
     * @param $id
     * @param $type
     * @return array
     */
    public function get_next_data($id, $type = 0) {
        $where = array('id' => array('lt', $id), 'status' => self::status_on);
        if (!empty($type)) {
            $where['type'] = $type;
        }
        $order = 'id desc';
        $data = $this->where($where)->order($order)->find();
        if (empty($data)) {
            unset($where['id']);
            $data = $this->where($where)->order($order)->find();
        }
        if (intval($data['id']) == $id) { //只有一篇时没有下一篇
            $data = array();
        }
        return $data;
    }

    /**
     * 获取上一篇文章，循环制，只有一篇时终止
     * @author: linch
     * @param $id
     * @param $type
     * @return array
     */
    public function get_pre_data($id, $type = 0) {
        $where = array('id' => array('gt', $id), 'status' => self::status_on);
        if (!empty($type)) {
            $where['type'] = $type;
        }
        $order = 'id asc';
        $data = $this->where($where)->order($order)->find();
        if (empty($data)) {
            unset($where['id']);
            $data = $this->where($where)->order($order)->find();
        }
        if (intval($data['id']) == $id) { //只有一篇时没有下一篇
            $data = array();
        }
        return $data;
    }

}