<?php
class Model
{
    protected $table = '';
    protected $fillable = [];
    /**
     * 创建记录
     *
     * @param array $data
     * @return void
     */
    public function create(array $data)
    {
        $_data = [];
        foreach ($this->fillable as $col) {
            $_data[$col] = empty($data[$col]) ? '' : $data[$col];
        }

        DB::insert_table($this->table, $_data);
    }
    /**
     * 创建或更新
     *
     * @return void
     */
    public function createOrUpdate(array $keyCol, array $data)
    {

        $where = ' 1=1 ';
        foreach ($keyCol as $key => $col) {
            $where  .= " and " .  $col[0] . " = '" . $col[1] . "'";
        }
        //   echo                 "select count(*) from  $this->table where  $where ";

        list($cnt) = DB::fields(
            "select count(*) from  $this->table where  $where "
        );
        if ($cnt == 0) {
            foreach ($keyCol as $key => $col) {
                $data[$col[0]] = $col[1];
            }
            self::create($data);
        } else {
            self::update($keyCol, $data);
        }
    }
    public  function delete(array $keyCol, array $data)
    {
        $where = ' 1=1 ';
        foreach ($keyCol as $key => $col) {
            $where  .= " and " .  $col[0] . " = '" . $col[1] . "'";
        }
        //  echo   "delete from  $this->table where  $where ";
        DB::query(
            "delete from  $this->table where  $where "
        );
    }
    public   function update(array $keyCol, array $data)
    {
        $_data = [];
        foreach ($this->fillable as $col) {
            if (in_array($col, array_keys($data))) $_data[$col] = empty($data[$col]) ? '' : $data[$col];
        }
        $where = ' 1=1 ';
        foreach ($keyCol as $key => $col) {
            $where  .= " and " .  $col[0] . " = '" . $col[1] . "'";
        }
        DB::update_table($this->table, $_data,  $where);
    }
    /**
     * 获取记录
     *
     * @param array $cond
     * @return void
     */
    public function get(array $cond)
    {
        return [];
    }
}