laravel 多次查询请求，下次请求清除上次请求的where 条件

在Laravel中，可以使用`where`方法来添加查询条件，但是每次添加`where`条件时，都会在查询构造器中持久化这些条件，直到你手动重置它们。所以，如果你想在下一次查询中清除上次查询的`where`条件，有以下几种选择：

1. 使用`getQuery`方法：
可以使用`getQuery`方法获取查询构造器的实例，并使用`wheres`属性来获取所有`where`条件，然后使用`reset`方法重置条件。

$query = Model::where('column1', 'value1')->orWhere('column2', 'value2');
// 获取查询构造器实例
$builder = $query->getQuery();
// 清除所有 where 条件
$builder->wheres = [];

2. 创建新的查询构造器实例：

$query = Model::query(); // 创建新的查询构造器实例
$query = $query->where('column1', 'value1')->orWhere('column2', 'value2');
// 下一次查询时，创建新的查询构造器实例
$query = Model::query();

3. 使用闭包：

$query = Model::query();
$query = $query->where(function ($query) {$query->where('column1', 'value1')->orWhere('column2', 'value2');
});
// 下一次查询时，不添加任何条件
$query = Model::query();

4.如果你想清空某个字段的查询条件，可以使用`getQuery`方法获取查询构造器的实例，并使用`wheres`属性来获取所有的`where`条件，然后遍历条件数组，找到需要清空的条件并删除。

以下是一个示例代码片段，演示如何清空某个字段的查询条件：

$query = Model::where('column1', 'value1')->where('column2', 'value2')->where('column3', 'value3');
// 获取查询构造器实例
$builder = $query->getQuery();
// 获取所有 where 条件
$wheres = $builder->wheres;// 遍历条件数组
foreach ($wheres as $key => $where) {// 检查条件是否为字段 'column2'if (isset($where['column']) && $where['column'] === 'column2') {// 删除条件unset($wheres[$key]);}
}// 重新设置查询构造器的 wheres 属性
$builder->wheres = $wheres;// 执行查询
$results = $query->get();

在上面的示例中，我们首先获取查询构造器实例，然后获取所有的`where`条件，并遍历条件数组。如果条件的字段等于 `'column2'`，我们就删除该条件。最后，我们重新设置查询构造器的 `wheres` 属性，并执行查询。

请根据你的具体需求修改示例代码，以适应你的查询条件和模型。

 public function likeVisit(Request $request){$userId = $request->user()->id;$params = $request->all();$page = $params['page'] ?? self::PAGE;$limit = $params['limit'] ?? self::LIMIT;$type = $params['type'] ?? 1; //1 我喜欢的 2喜欢我的 3最近来访 4互相喜欢$zSetCache = new ZsetCache();$stringCache = new SysConfigStringCache();$cacheKey = 'Visit:' . $type . '_' . $page . '_' . $limit . '_' . $userId;$stringCache->setKeyParameter([$cacheKey]);$cacheData = $stringCache->get();if ($cacheData) {return $this->success(json_decode($cacheData, 320));} else {$info = ['my_like_user' => [],'like_me_user' => [],'visit_user' => [],'each_like_list' => [],];$myLikeUserIds = UserLike::myLikeUserIds($userId);$likeMeUserIds = UserLike::likeMeUserIds($userId);$eachLikeIds = array_intersect($myLikeUserIds, $likeMeUserIds);//我已经解锁的用户[喜欢我的 最近来访]$myUnLockId = [];if ($type == 2 || $type == 3) {$myUnLockId = UserUnlock::getLockStatus(['user_id' => $userId]);}$select = ['nickname', 'birthday', 'avatar', 'stature', 'location_city_id', 'user_id', 'like_user_id', 'ip'];$query = User::query()->select($select);if ($type == 1) {  //1.我喜欢的$myLike = $query->leftJoin('meet_user_like', 'meet_user.id', '=', 'meet_user_like.like_user_id')->where(['user_id' => $userId, 'meet_user_like.type' => 1])->where('meet_user.status', '<>', User::USER_STATUS_LOG_OFF)->orderBy('meet_user_like.id', 'desc')->offset($page * $limit)->limit($limit)->get();$myLike = !empty($myLike) ? $myLike->toArray() : [];foreach ($myLike as &$item) {$item['each_like'] = in_array($item['like_user_id'], $likeMeUserIds);}$info['my_like_user'] = (new UserLike())->formatUser($myLike);} elseif ($type == 2) { //2.喜欢我的$query = $query->leftJoin('meet_user_like', 'meet_user.id', '=', 'meet_user_like.user_id')->orWhere(function ($query) use ($userId) {$query->where('meet_user.identity_status', 1)->where('meet_user.score', '>', 70)->where('meet_user.status', '<>', User::USER_STATUS_LOG_OFF)->where(['like_user_id' => $userId, 'meet_user_like.type' => 1]);})->orWhere(function ($query) use ($userId) {$query->where('meet_user.status', 1)->where('meet_user.status', '<>', User::USER_STATUS_LOG_OFF)->where(['like_user_id' => $userId, 'meet_user_like.type' => 1]);})->orWhere(function ($query) use ($userId) {$query->where('meet_user.vip_status', 1)->where(['like_user_id' => $userId, 'meet_user_like.type' => 1])->where('meet_user.status', '<>', User::USER_STATUS_LOG_OFF);});//年龄范围if (isset($params['age_min']) && !empty($params['age_min']) && isset($params['age_max']) && !empty($params['age_max'])) {$ageMin = now()->subYears($params['age_max'])->toDateString();$ageMax = now()->subYears($params['age_min'])->toDateString();$query->where('birthday', '>=', $ageMin);$query->where('birthday', '<=', $ageMax);}//城市if (isset($params['location_city_id']) && !empty($params['location_city_id'])) {$query->where('location_city_id', $params['location_city_id']);}//身高if (isset($params['stature_min']) && !empty($params['stature_min']) && isset($params['stature_max']) && !empty($params['stature_max'])) {$query->where('stature', '>=', $params['stature_min']);$query->where('stature', '<=', $params['stature_max']);}//学历if (isset($params['education_level']) && !empty($params['education_level'])) {$query->where('education_level', '>=', $params['education_level']);}$likeMe = $query->orderBy('meet_user_like.id', 'desc')->offset($page * $limit)->limit($limit)->get();$likeMe = !empty($likeMe) ? $likeMe->toArray() : [];foreach ($likeMe as &$item) {$item['each_like'] = in_array($item['user_id'], $myLikeUserIds);$item['lock_status'] = isset($myUnLockId[$item['user_id']]);}$info['like_me_user'] = (new UserLike())->formatUser($likeMe);//销毁动态新增喜欢(红色标记样式)$newLikeMeKey = 'Like:new_like_me_' . $userId;$stringCache->del($newLikeMeKey);} elseif ($type == 3) {//3最近来访//销毁动态新增来访$newVisitMeKey = 'Visit:new_visit_me_' . $userId;$stringCache->del($newVisitMeKey);//阅后即焚，将该成员销毁掉，避免影响新的值比对$visitNumKey = 'Visit:new_visit_num';$zSetCache->zRem($visitNumKey, $newVisitMeKey);//3.最近来访$tomorrow = Carbon::tomorrow()->toDateString();$today = Carbon::today()->toDateString();$yesterday = Carbon::yesterday()->toDateString();$select = ['nickname', 'birthday', 'avatar', 'stature', 'location_city_id', 'user_id', 'visit_num', 'meet_user_visit.created_at as visit_time', 'ip'];//$todayVisitKey = 'Visit:' . 'total_visit_ids_' . $userId;//$todayVisitIds = $zSetCache->zRangeByScore($todayVisitKey, strtotime(date('Y-m-d')), time()); //今日访客ids//$yesterdayVisitIds = $zSetCache->zRangeByScore($todayVisitKey, strtotime(date("Y-m-d", strtotime("-1 day"))), strtotime(date('Y-m-d'))); //昨日访客ids//$historyVisitIds = $zSetCache->zRangeByScore($todayVisitKey, '-inf', strtotime(date("Y-m-d", strtotime("-1 day")))); //历史访客ids$recentVisitData = ['todayVisit' => [],'yesterdayVisit' => [],'historyVisit' => [],];/*$recentVisit = User::query()->select($select)->leftJoin('meet_user_visit', 'meet_user.id', '=', 'meet_user_visit.user_id')->where('visited_id', $userId)->where('avatar', '!=', '') // 过滤掉空头像用户->orWhere(function ($query) use ($userId) {$query->where('meet_user.identity_status', 1)->where('meet_user.score', '>', 70)->where('visited_id', $userId)->where('avatar', '!=', ''); // 附加条件})->orWhere(function ($query) use ($userId) {$query->where('meet_user.status', 1)->where('visited_id', $userId)->where('meet_user.status', '<>', User::USER_STATUS_LOG_OFF)->where('avatar', '!=', ''); // 附加条件})->orWhere(function ($query) use ($userId) {$query->where('meet_user.vip_status', 1)->where('visited_id', $userId)->where('meet_user.status', '<>', User::USER_STATUS_LOG_OFF)->where('avatar', '!=', ''); // 附加条件})->where('meet_user.status', '<>', User::USER_STATUS_LOG_OFF)->orderBy('meet_user_visit.id', 'desc')->offset($page * $limit)->limit($limit)->get();*/$recentVisitQuery = User::query()->select($select)->leftJoin('meet_user_visit', 'meet_user.id', '=', 'meet_user_visit.user_id')->where(['visited_id' => $userId])->where('avatar', '!=', '') //过滤掉空头像用户->where('meet_user.status', '<>', User::USER_STATUS_LOG_OFF) //没有注销的用户->orWhere(function ($query) use ($userId) {$query->where('meet_user.identity_status', 1)->where('meet_user.score', '>', 70)->where('visited_id', $userId)->where('avatar', '!=', ''); // 附加条件})->orWhere(function ($query) use ($userId) {$query->where('meet_user.status', 1)->where('visited_id', $userId)->where('meet_user.status', '<>', User::USER_STATUS_LOG_OFF)->where('avatar', '!=', ''); // 附加条件})->orWhere(function ($query) use ($userId) {$query->where('meet_user.vip_status', 1)->where('visited_id', $userId)->where('meet_user.status', '<>', User::USER_STATUS_LOG_OFF)->where('avatar', '!=', ''); // 附加条件})->orderByDesc('meet_user_visit.created_at');foreach ($recentVisitData as $key => $datum) {if ($key == 'todayVisit') {//今天访客$todayVisit = $recentVisitQuery->where('meet_user_visit.created_at', '>', $today)->where('meet_user_visit.created_at', '<', $tomorrow)->get()->groupBy('user_id');$todayVisit = $todayVisit->isNotEmpty() ? $todayVisit->toArray() : [];$newTodayVisit = [];foreach ($todayVisit as $todayItem) {$visitUser = (array)$todayItem[0];$visitUser['each_like'] = in_array($visitUser['user_id'], $eachLikeIds);$visitUser['lock_status'] = isset($myUnLockId[$visitUser['user_id']]);$newTodayVisit[] = $visitUser;}$recentVisitData['todayVisit'] = (new UserLike())->formatUser($newTodayVisit);//dd($recentVisitData['todayVisit']);} elseif ($key == 'yesterdayVisit') {//昨天//1. 获取查询构造器实例$builder = $recentVisitQuery->getQuery();//2. 获取所有 where 条件$wheres = $builder->wheres;$bindings = $builder->bindings;//3. 遍历条件数组foreach ($wheres as $key => $where) {// 检查条件是否为字段 'column2'if (isset($where['column']) && $where['column'] === 'meet_user_visit.created_at') {//unset($wheres[$key]); // 删除条件if ($wheres[$key]['operator'] == '>') {$wheres[$key]['value'] = $yesterday;$bindings['where'][$key] = $yesterday;} elseif ($wheres[$key]['operator'] == '<') {$wheres[$key]['value'] = $today;$bindings['where'][$key] = $today;}}}//4. 重新设置查询构造器的 wheres 属性$builder->wheres = $wheres;$builder->bindings = $bindings;// 清除所有 where 条件//  $builder->wheres = [];//5. 执行查询$yesterdayVisit = $builder->get()->groupBy('user_id');//$builder = $recentVisitQuery->getQuery();//dd($builder,$builder->bindings);//$yesterdayVisit = $builder->where('meet_user_visit.created_at', '>', $yesterday)->where('meet_user_visit.created_at', '<', $today)->get()->groupBy('user_id');$yesterdayVisit = $yesterdayVisit->isNotEmpty() ? $yesterdayVisit->toArray() : [];$newYesterdayVisit = [];foreach ($yesterdayVisit as $item) {$visitUser = (array)$item[0];$visitUser['each_like'] = in_array($visitUser['user_id'], $eachLikeIds);$visitUser['lock_status'] = isset($myUnLockId[$visitUser['user_id']]);$newYesterdayVisit[] = $visitUser;}$recentVisitData['yesterdayVisit'] = (new UserLike())->formatUser($newYesterdayVisit);//dd( $recentVisitData['yesterdayVisit']);} else {//历史来访//1. 获取查询构造器实例$builder = $recentVisitQuery->getQuery();//2. 获取所有 where 条件$wheres = $builder->wheres;$bindings = $builder->bindings;//3. 遍历条件数组foreach ($wheres as $key => $where) {if (isset($where['column']) && $where['column'] === 'meet_user_visit.created_at') {if ($wheres[$key]['operator'] == '>') {unset($wheres[$key], $bindings['where'][$key]); // 删除条件} else {$wheres[$key]['value'] = $yesterday;$bindings['where'][$key] = $yesterday;}}}//4. 重新设置查询构造器的 wheres 属性$builder->wheres = $wheres;$builder->bindings = $bindings;//5. 执行查询$historyVisit = $builder->get()->groupBy('user_id');// $historyVisit = $recentVisitQuery->withoutGlobalScope('meet_user_visit.created_at')->where('meet_user_visit.created_at', '<', $yesterday)->offset($page * $limit)->limit($limit)->get()->groupBy('user_id');$historyVisit = $historyVisit->isNotEmpty() ? $historyVisit->toArray() : [];$newHistoryVisit = [];foreach ($historyVisit as $item) {$visitUser = (array)$item[0];$visitUser['each_like'] = in_array($visitUser['user_id'], $eachLikeIds);$visitUser['lock_status'] = isset($myUnLockId[$visitUser['user_id']]);$newHistoryVisit[] = $visitUser;}$recentVisitData['historyVisit'] = (new UserLike())->formatUser($newHistoryVisit);//dd( $recentVisitData['historyVisit']);}}//dd($recentVisitData);/*if ($recentVisit->isNotEmpty()) {$recentVisit = $recentVisit->toArray();$recentVisit = (new UserLike())->formatUser($recentVisit);// dd($recentVisit);$visitData = $yesterdayVisitData = $historyVisitData = [];foreach ($recentVisit as $visit) {$visit['each_like'] = in_array($visit['user_id'], $eachLikeIds);$visit['lock_status'] = isset($myUnLockId[$visit['user_id']]);if ($tomorrow > $visit['visit_time'] && $visit['visit_time'] > $today) {//今天访客if (!isset($visitData[$visit['user_id']])) {$visitData[$visit['user_id']] = $visit;$recentVisitData['todayVisit'][] = $visit;}} elseif ($today > $visit['visit_time'] && $visit['visit_time'] > $yesterday) { //昨天if (!isset($yesterdayVisitData[$visit['user_id']])) {$yesterdayVisitData[$visit['user_id']] = $visit;$recentVisitData['yesterdayVisit'][] = $visit;}} elseif ($yesterday > $visit['visit_time']) {if (!isset($historyVisitData[$visit['user_id']])) {$historyVisitData[$visit['user_id']] = $visit;$recentVisitData['historyVisit'][] = $visit;}}}unset($visitData, $yesterdayVisitData, $historyVisitData);}*/$info['visit_user'] = $recentVisitData;unset($recentVisitData);} elseif ($type == 4) { //4互相喜欢//$eachLikeIds = array_intersect($myLikeUserIds, $likeMeUserIds);$select = ['id as like_user_id', 'nickname', 'birthday', 'avatar', 'stature', 'location_city_id', 'ip'];$eachLikeList = User::query()->select($select)->where('meet_user.status', '<>', User::USER_STATUS_LOG_OFF)->whereIn('meet_user.id', $eachLikeIds)->offset($page * $limit)->limit($limit)->get();$eachLikeList = !empty($eachLikeList) ? $eachLikeList->toArray() : [];foreach ($eachLikeList as &$item) {$item['user_id'] = $userId;$item['each_like'] = true;}$info['each_like_list'] = (new UserLike())->formatUser(array_values($eachLikeList));$info['each_like_count'] = count($eachLikeIds);}//缓存1小时//$stringCache->set(json_encode($info, 320));//$stringCache->expire(3600);return $this->success($info);}}