infantServiceApi/library/traits/ModelTrait.php

<?php
declare (strict_types=1);

namespace library\traits;
// +----------------------------------------------------------------------
// | [ WE CAN DO IT MORE SIMPLE  ]
// +----------------------------------------------------------------------
// | Copyright (c) 2018-2020 rights reserved.
// +----------------------------------------------------------------------
// | Author: TABLE ME
// +----------------------------------------------------------------------
// | Date: 2020-08-29 16:03
// +----------------------------------------------------------------------


use think\Model;

trait ModelTrait
{
    public static function get($where)
    {
        if (!is_array($where)) {
            return self::find($where);
        } else {
            return self::where($where)->find();
        }
    }

    public static function all($function)
    {
        $query = self::newQuery();
        $function($query);
        return $query->select();
    }


    /**
     * 查询一条数据是否存在
     * @param $map
     * @param string $field
     * @return bool 是否存在
     */
    public static function be($map, $field = '')
    {
        $model = (new self);
        if (!is_array($map) && empty($field)) $field = $model->getPk();
        $map = !is_array($map) ? [$field => $map] : $map;
        return 0 < $model->where($map)->count();
    }

    /**
     * 删除一条数据
     * @param $id
     * @return bool $type 返回成功失败
     */
    public static function del($id)
    {
        return false !== self::destroy($id);
    }

    /**
     * 获取去除html去除空格去除软回车,软换行,转换过后的字符串
     * @param string $str
     * @return string
     */
    public static function HtmlToMbStr($str)
    {
        return trim(strip_tags(str_replace(["\n", "\t", "\r", " ", "&nbsp;"], '', htmlspecialchars_decode($str))));
    }

    /**
     * 截取中文指定字节
     * @param string $str
     * @param int $utf8len
     * @param string $chaet
     * @param string $file
     * @return string
     */
    public static function getSubstrUTf8($str, $utf8len = 100, $chaet = 'UTF-8', $file = '....')
    {
        if (mb_strlen($str, $chaet) > $utf8len) {
            $str = mb_substr($str, 0, $utf8len, $chaet) . $file;
        }
        return $str;
    }

    /**
     * 获取本季度 time
     * @param int|string $time
     * @param string $ceil
     * @return array
     */
    public static function getMonth($time = '', $ceil = 0)
    {
        if ($ceil != 0)
            $season = ceil(date('n') / 3) - $ceil;
        else
            $season = ceil(date('n') / 3);
        $firstday = date('Y-m-01', mktime(0, 0, 0, ($season - 1) * 3 + 1, 1, date('Y')));
        $lastday = date('Y-m-t', mktime(0, 0, 0, $season * 3, 1, date('Y')));
        return array($firstday, $lastday);
    }

    /**
     * 高精度 加法
     * @param int|string $uid id
     * @param string $decField 相加的字段
     * @param float|int $dec 加的值
     * @param string $keyField id的字段
     * @param int $acc 精度
     * @return bool
     */
    public static function bcInc($key, $incField, $inc, $keyField = null, $acc = 2)
    {
        if (!is_numeric($inc)) return false;
        $model = new self();
        if ($keyField === null) $keyField = $model->getPk();
        $result = self::where($keyField, $key)->find();
        if (!$result) return false;
        $new = bcadd($result[$incField], $inc, $acc);
        $result->$incField = $new;
        return false !== $result->save();
//        return false !== $model->where($keyField, $key)->update([$incField => $new]);
    }


    /**
     * 高精度 减法
     * @param int|string $uid id
     * @param string $decField 相减的字段
     * @param float|int $dec 减的值
     * @param string $keyField id的字段
     * @param bool $minus 是否可以为负数
     * @param int $acc 精度
     * @return bool
     */
    public static function bcDec($key, $decField, $dec, $keyField = null, $minus = false, $acc = 2)
    {
        if (!is_numeric($dec)) return false;
        $model = new self();
        if ($keyField === null) $keyField = $model->getPk();
        $result = self::where($keyField, $key)->find();
        if (!$result) return false;
        if (!$minus && $result[$decField] < $dec) return false;
        $new = bcsub($result[$decField], $dec, $acc);
        $result->$decField = $new;
        return false !== $result->save();
    }

    /**
     * @param null $model
     * @return Model
     */
    protected static function getSelfModel($model = null)
    {
        return $model == null ? (new self()) : $model;
    }

}