144 行
3.5 KiB
PHP
144 行
3.5 KiB
PHP
<?php
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namespace app\common\library;
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use think\Db;
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/**
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* 后台列表关联信息展示
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*
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* 列表只展示业务名称（昵称 / 标题 / 分类 / 单号），不把数据库自增 ID 暴露给运营。
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* 同一请求内按 ID 缓存，避免列表逐行重复查询。
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*/
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class FcRelation
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{
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protected static $users = [];
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protected static $posts = [];
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protected static $categories = [];
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protected static $orders = [];
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protected static $withdraws = [];
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protected static $comments = [];
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/**
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* 用户信息
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*/
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public static function user($id)
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{
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$id = (int)$id;
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if ($id <= 0) {
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return null;
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}
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if (!array_key_exists($id, self::$users)) {
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self::$users[$id] = Db::name('user')
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->where('id', $id)
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->field('id,username,nickname,mobile')
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->find() ?: null;
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}
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return self::$users[$id];
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}
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/**
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* 用户显示名：昵称优先，其次账号
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*/
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public static function userName($id)
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{
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$user = self::user($id);
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if (!$user) {
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return '';
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}
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return $user['nickname'] !== '' && $user['nickname'] !== null
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? $user['nickname']
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: $user['username'];
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}
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/**
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* 用户手机号
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*/
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public static function userMobile($id)
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{
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$user = self::user($id);
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return $user ? $user['mobile'] : '';
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}
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/**
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* 信息标题
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*/
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public static function postTitle($id)
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{
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$id = (int)$id;
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if ($id <= 0) {
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return '';
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}
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if (!array_key_exists($id, self::$posts)) {
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self::$posts[$id] = (string)Db::name('fc_post')->where('id', $id)->value('title');
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}
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return self::$posts[$id];
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}
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/**
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* 分类名称
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*/
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public static function categoryName($id)
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{
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$id = (int)$id;
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if ($id <= 0) {
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return '';
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}
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if (!array_key_exists($id, self::$categories)) {
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self::$categories[$id] = (string)Db::name('fc_category')->where('id', $id)->value('name');
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}
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return self::$categories[$id];
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}
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/**
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* 订单号
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*/
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public static function orderNo($id)
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{
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$id = (int)$id;
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if ($id <= 0) {
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return '';
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}
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if (!array_key_exists($id, self::$orders)) {
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self::$orders[$id] = (string)Db::name('fc_order')->where('id', $id)->value('order_no');
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}
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return self::$orders[$id];
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}
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/**
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* 提现单号
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*/
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public static function withdrawNo($id)
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{
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$id = (int)$id;
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if ($id <= 0) {
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return '';
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}
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if (!array_key_exists($id, self::$withdraws)) {
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self::$withdraws[$id] = (string)Db::name('fc_withdraw')->where('id', $id)->value('withdraw_no');
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}
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return self::$withdraws[$id];
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}
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/**
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* 评价内容摘要
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*/
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public static function commentSnippet($id, $length = 40)
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{
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$id = (int)$id;
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if ($id <= 0) {
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return '';
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}
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if (!array_key_exists($id, self::$comments)) {
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self::$comments[$id] = (string)Db::name('fc_comment')->where('id', $id)->value('content');
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}
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$content = self::$comments[$id];
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if ($content === '') {
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return '';
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}
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return mb_strlen($content, 'utf-8') > $length
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? mb_substr($content, 0, $length, 'utf-8') . '…'
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: $content;
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}
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}
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