<?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 $data)
    {
        list($cnt) = DB::fields(
            "select count(*) from  $this->table where  " . $keyCol[0] . " = '" . $keyCol[1] . "'"
        );
        if ($cnt == 0) {
            self::create(array_merge($data, $keyCol));
        }
    }

    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];
        }
        DB::update_table($this->table, $_data, $keyCol[0] . '=\'' . $keyCol[1] . '\'');
    }
    /**
     * 获取记录
     *
     * @param array $cond
     * @return void
     */
    public function get(array $cond)
    {
        return [];
    }
}