对于根据变量null或not执行where条件,可以使用Laravel的条件语句来实现。以下是一个示例代码: 代码语言:txt 复制 $variable = null; $query = DB::table('table_name') ->select('*') ->where(function ($query) use ($variable) { if ($variable === null) { $query->whereNull('column_name'); }...
)- get(); } 1.5.3 addSelect方法 如果你想要添加一个select 可以这样做: public function getArticlesInfo() { $query...= DB::table('articles')- select('title as articles_title'); $articles = $query- addSelect('id')-...whereNotIn('id', [1, 3, 5, 8])- get(); dd($articles...
In this small tutorial i will let you know how you can write query for where null and where not null condition. here i will write core SQL query and then convert it into laravel query builder using db. So just see bellow example and see how it is works. we have following solution on...
->function(// logger($this->input);if($this->input==1)$query->whereNull('jz_cx_gid');elseif($this->input==2)$query->whereNotNull('jz_cx_gid');},'gid是否为空')->radio([''=>'不作选择',1=>'为空',2=>'不为空',]);...
If someone like me want to do it with query builder in Laravel 5.2.23 it can be done like -> $searchResultQuery = Users::query(); $searchResultQuery->where('status_message', '<>', '', 'and'); // is not null $searchResultQuery->where('is_deleted', 'IS NULL', null, 'and'...
$result=Me::query()->where('id',$id)->first();$result->articles()->createMany([['title'=>'test title'],['title'=>'test title2'],]); 表结构: CREATETABLE`me_articles`(`id`int(11)NOTNULLAUTO_INCREMENT,`me_id`int(11)DEFAULTNULL,`title`varchar(255)DEFAULTNULL,`created_at`dateti...
* Execute the query and get the first result or throw an exception. * * @param array $columns * @return \Illuminate\Database\Eloquent\Model|static * * @throws \Illuminate\Database\Eloquent\ModelNotFoundException */publicfunctionfirstOrFail($columns=['*']){if(!is_null($model=$this->first...
chunkByIdDesc(int $count, callable $callback, string|null $column = null, string|null $alias = null) Chunk the results of a query by comparing IDs in descending order. from BuildsQueries bool orderedChunkById(int $count, callable $callback, string|null $column = null, string|null $alia...
Sometimes you may need to use a raw expression in a query. These expressions will be injected into the query as strings, so be careful not to create any SQL injection points! To create a raw expression, you may use theDB::rawmethod: ...
pluck Arr::prepend Arr::prependKeysWith Arr::pull Arr::query Arr::random Arr::set Arr::shuffle Arr::sort Arr::sortDesc Arr::sortRecursive Arr::take Arr::toCssClasses Arr::toCssStyles Arr::undot Arr::where Arr::whereNotNull Arr::wrap data_fill data_get data_set data_forget head ...