application/app/controller/Receivecoupon.php

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<?php
namespace app\app\controller;

use app\common\controller\CommonApp;
use app\common\model\Coupon;
use app\common\model\CouponMember;
use app\common\model\CouponBindLog;
use app\common\model\Members;
use app\common\service\Coupon as CouponService;
use app\common\model\GiftTicket;
use app\common\model\GiftTicketMember;
use app\common\service\GiftTicket as GiftTicketService;
use app\common\model\WeixinShare;

/**
 * 平台领取券
 */
class Receivecoupon extends CommonApp
{
	public function platformReceive(){
		$user = $this->userInfo;
		$coupon_id = intval(cookie_decrypt($this->request->param('token'),'HY_COUPON'));
		if (!is_numeric($coupon_id) || $coupon_id < 0 || empty($coupon_id)) {
			$this->error('参数错误');
		}
		$couponRow = Coupon::where("id",$coupon_id)->find();
		if(!$couponRow) $this->error("参数错误");
		$couponBindCount = CouponBindLog::where("coupon_id",$couponRow['id'])->count();
        $couponMemCount = CouponMember::where('coupon_id',$couponRow['id'])->count();

		$error='';
		if($couponRow['total_num'] - (intval($couponMemCount) + intval($couponBindCount)) <= 0) $error = "优惠券已领完！";

		$couponService = new CouponService;
		$status = $couponService->check_coupon($coupon_id);

		if($status) $error = "该优惠券已过期";
		
		$params = [
			'coupon_id'	=>	$coupon_id
		];
		if ($this->request->isAjax()) {
			$mobile = $this->request->param('mobile');

			if (!$mobile) return '请填写领取人手机号';

			$get_member = Members::where('mobile',$mobile)->find();
			if ($get_member) {
				$params['uid'] = $get_member['id'];
				$uid = $get_member['id'];
			}else{
				$params['mobile'] = $mobile;
				$uid = "";
			}

			$check_status = $couponService->check_user_get_coupon($coupon_id,$uid,$mobile);
			if($check_status !== true) return $check_status;

			// 平台领取优惠券
			$res = $couponService->coupon_platform_get($params);